Trac's Posts
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 Car Talk / Re: Transmission Fluid Or Gear Oil In Radiator by Trac: 5:51am On Nov 21, 2012 |
I believe it is oil and not the transmission fluid. It is definitely not the differential oil because that is at the rear. The milky colour that is dark-chocolate is probably how his conclusion was drawn. A few things can be responsible but most likely, it is a worn head gasket. |
| Car Talk / Re: Is The Use Of Halogen Bulb(white) As Car Headlamps Allowed By Frsc by Trac: 5:33am On Nov 21, 2012 |
I hope it is understood that you do not see better with HID lights and the burners (D2R as stated) for reflective poly-ellipsoidal optical mediums designed for incandescent filaments is a downgrade, thus yielding less useable light. This is the disadvantage. The only advantage of the HID burner is the less power it draws for the output of light. |
| Car Talk / Re: What Did You Do To Your Car Today? by Trac: 5:17am On Nov 21, 2012 |
Siena: Thank you! I have noted the name. I will look for the a supplier around.  |
| Car Talk / Re: Mercedes Benz Thread by Trac: 6:36am On Nov 18, 2012 |
fastlane84: That MB's in that review is not the same model generation as what you have. New and different philosophies were implemented that wasn't implemented in the generation you have. MB went lean-engineering and though tremendous profits were earned, loyal customers and reputation was lost. There is a lot not to like about those C Classes reviewed. Once you understand the science behind MB engines and can work on the engines, you will find it very difficult to switch vehicle brands. They are just different and other engines just seem inferior to you. The chassis elastic is another. Their chassis technology is nothing I have seen outside of the racing world. Another interesting chassis compilation is what's found in the 911's. |
| Car Talk / Re: How To Make Your Car Age Quickly by Trac: 6:20am On Nov 18, 2012 |
One teaspoon of dawn or dish washing detergent and wash the whole car. Watch within a month how oxidation takes place. Consider the paintwork ruined. |
| Car Talk / Re: What Did You Do To Your Car Today? by Trac: 6:17am On Nov 18, 2012 |
Siena: Tuesday 06th November 2012: What crane is this? From the looks, the integrity appeals to me. |
| Car Talk / Re: Manual Transmission : Issues & Comments by Trac: 6:09am On Nov 18, 2012 |
bigx: It is nothing but a relationship between horsepower (brake), rev/min and torque and a change of dominant state. Torque and revolutions within a minute changes for every gearshift. You loose revolutions every time you downshift. Engine braking is what engineers and scientist would explicitly term as rotational inertia - because that is what it is. Basically, inertia occurs at the transmission due to the principle (motion design/laws of physics) that the lower gear will definitely yields more revolutions per minute for the same acceleration. This is where the translation of energy occurs. The translation gives you a dynamic loss at the drive-train; this is rotational inertia (well, engine braking if you want to term it to this application). The manifestation is that the torque is flushed to you in the cabin due to the sudden translation of states. So basically, more RPM in exchange for acceleration. This is the lean explanation. |
| Car Talk / Re: How good is Fuel Injector Cleaners? by Trac: 7:09pm On Sep 24, 2012 |
Siena: In-tank injector cleaners are not worth buying. They dissolve gum deposits, which will again settle in the injector lines, pintle caps and valves. Sometimes, benign (harmless) deposits are dislodged, and allowed to travel where'll they'll do the most harm. Audi, BMW and Mercedes approve of Techron and it is explicitly officially documented. None of the harms you have stated will occur with this formulation. This is not to discredit the option of mechanical service (as you stated) or the application of techron to other vehicle brands besides the aforementioned. I personally use techron but not through the gas tank and it is the only one that gave the lasting result than the other ones used. I had an experience that for the most part outwitted me. I was getting approximately a mile to a gallon. It wasn't doing so before but the car was mostly parked. It also passed the annual emissions. It was as if I was lugging the engine; it'll always stay in high-gears and would inappropriately match throttle response. Then it dawned on me that gasoline ferments and ethanol makes it something else. With nothing to loose, I almost emptied the tank and poured a bottle of seafoam (naphtha and snake oil) in the gas chamber and filled to a quarter. The results were slow but strange. I had a serious puddle of water from the exhaust. Large enough to draw an attention because it is abnormal. It was enough to be abnormal. That was the end of the mile-per-gallon issue. I went on a long travel that same day in that car starting with half-a-tank or more. The following day, I forced-induced it through the fuel regulator in conjunction with the throttle body to purge the intake and it quietened the engine. In my ignorance, I used seafoam and consequentially, advised someone on this forum in accordance to my result. The result was temporary till I discovered Mercedes approved Techron as a fluid application. It is the only lasting solution that ever worked for me. I don't use the tank because I feel that it is being wasted. I won't and don't recommend seafoam. Where I live, gas is sold as E10; in other words, 10% blend of ethanol. I personally don't believe it's 10% but more. Besides having lower BTU's, I have to worry about rust and other damages ethanol does to metals and rubber over time (being in use or extended-parked). In addition, the gas is poor in quality. A few days ago, I had to stabilise the fuel in the chamber - the pungent smell at startup is disturbing. People don't mind driving a considerably long distance to pay for the higher priced pure gasoline as opposed to the E-blended alternative. There is also an app to tell you nearby locations where purchase can be made. Carbon builds rapidly with E-blended fuels. A $4500 job (Mercedes service price) is not appropriate every couple of extended months. For me, it's not an option because every unappreciable depreciated loss in "throttle response" performance is worth investigating. Those of us that have no choice but E-blended cannot go long without some kind of fuel treatment every now and then to control deposits and buildup. What is strange was that I was doing some before and I stopped because I listened to fact that additives are included in the gasoline formulation. By theory, Nigerians should have pure fuel (that is unadulterated). My humble 2-Cents. 2 Likes |
| Car Talk / Re: Best Oil Grade To Use For Nigerian Car? by Trac: 5:49pm On Sep 24, 2012 |
elite: Trac, I apologise for the late response. I am actually just seeing this response; Nairaland's notification system is sub-standard. What I know about using the wrong weight of oil is you have increase i engine temperature and there is higher resistance in reciprocating parts. The oil is also mass. Get a keg of xw-30 and a keg of xw-40/50 and lift them. The 40/50 weight oil is heavier and that is noticeable; in other words, mass per volume area (density) is more. Imagine having a keg and a half of this multi-viscous oil in a crankcase, the density will be more than significantly heavier than a 30 weight oil. You also have compromised pressure measurements/managements. By this, I am referring to the "absolute1" and "guage2" pressure within the crankcase. Since depth is a factor in an engine's form-factor, pressure and elevation exist also as a relationship. According to Blaise Pascal's paradox3, change of pressure depends on the elevation and the type of fluid. There are two milestones in oil references in terms of SAE's multi-viscosity: @40degC and @100degC. How this oil behave at this temperatures at rating systems is a very calculated consideration. This also leads to a very important and critical aspect: pumping viscosity4. The state and how well or poorly this process is the pumping condition and it varies according to temperature. This will be compromised as well for a light-duty engine in normal or light duty operations. If your vehicle indicates 5w-30, that is what you have to go by (Xw-30). If it says Xw-40, you will have to stick to that configuration. Both configurations are different on the "international rating system." Both SAE oils cannot be mixed for they will not mix. Engines today are subject to strict EPA or emission requirements. People want fuel efficient cars, so composite materials are used now and more precision is required when designers engineer their engines. Since the specifications you are opting for was not considered in the design for optimum performance, certain unaccounted results should also be expected. Fluids are very critical in their operation. For example: a Mercedes transmission oil cannot be substituted for any other transmission fluid. It has it's own personality in operation. It is in two layers or more. The top is sort of magnetic and it keeps afloat wear debris from the trans-case and transports it via the course of motion till it's trapped by the filter. There are other fluid properties that only work within the transmission's crankcase but the singular aforementioned characteristic is enough to be very cautious. Some of the fluid specifications are not backward compatible. From my understanding as of today, the current is backward compatible with all previous MB trans-fluid. This is why it is so expensive. But there is a way around it (and I'm not going to discuss that). If cars can be imported, then the oils too can be. It's not a recreational function. The proper oil configuration is what you need and save your money in the long-run. 1. Absolute - the lowest possible pressure 2. Guage - the actual pressure that has been influenced by the atmosphere (atmospheric pressure) in comparison to absolute. 3. Pascal's Paradox - change in pressure is dependent upon the vertical distance (elevation) and the type of fluid. 4. Pumping Viscosity - ability of the oil to flow through from it's channels to and through the oil pump inlet 3 Likes 1 Share |
| Car Talk / Re: Advice On Volvo S60 by Trac: 9:08pm On Sep 07, 2012 |
realfreddy: WHO HAS EXPERIENCE OF VOLVO S60? I AM CONTEMPLATING BUYING A 2005 MODEL...PLEASE ADVISE Anything lower than 2004 in the model generation isn't reliable. If you aren't much into cars, avoid the high pressure turbo model (especially if you are in Nigeria). Basically, avoid the turbo models. Above all, if you have no need for AWD, overlook it. It has it's own issues and things kind of gets complicated when something goes wrong. It's a very picky car. Find a mechanic that understands and has experience with Volvo's. It's not as complicated as the bigger "dawgs" but it isn't really as forgiving when remedial service is required; that means your whole day is ruined. A savvy mechanics that has a broad experience with European cars can perform service on it. There is a bit of caution -- and it cannot and shouldn't be overlooked. * If the vehicle in question will be driven to Nigeria, exercise the extra effort and purchase the Volvo plugs for that engine. As far as I know, they can only be gotten from the Volvo dealer. They are platinum and they go for a year (15,000) before replacement. The vehicle will only use this of plugs. Anything else will create problems and you will never trace it to the plugs as the root. You'll only be fixing symptoms and be repetitive till you get it right (by using the proper specified plugs). It is $15 for a pack (5 plugs). * Timing belt service: a service tag on the external cover of the timing shield should indicate when it was last serviced. If this isn't there and the seller cannot prove maintenance, this is the first thing you should do after purchase. It is of extreme priority. The tensioner is mechanical and it also has to be replaced with the belt, thus making the service expensive. Failure to replace the tensioner is investment for a new engine 10,000 miles later and this is guaranteed and there is no way around it. So, specify when the service is to be done that the timing belt and the tensioner should be replaced. It has to be done every 70,000 miles and the vehicle is strict about the 70,000 mile range. * Oil - it will only use Xw-30 or Xw-40. Xw-50 is recommended when towing and should be drained when done hauling or when revving at 4500rpm and above for an extended period of time. This is from the owners manual. * Transmission fluid: it uses the Aisin Warner fluid. So far, as I know, only Volvo can do the servicing on this transmission for they have the equipment to do this. However, you can drain and fill. Transmission is bullet proof but you cannot omit maintenance on it. Anything besides Aisin is embracing the transmission goodbye. In summary, the least problem free is the non-AWD non-turbo models/2004-up of the model generation. If it is to be driven on Nigerian roads, forget the turbo models. They require at least 91 Octane fuel. Before the purchase of the vehicle, get a qualified mechanic and stock some parts. Timing and tensioner cannot be overlooked. It is also safe to say that you will need a mechanic that is versed in suspensions. All the best in your purchase. 3 Likes |
| Car Talk / Re: What Is The Average Life Span Of A Car? by Trac: 10:25am On Sep 06, 2012 |
Somorin#1: I'm sorry to burst your bubble but none of what I posted is from the internet (neither did I google anything). I have an intellectual understanding of automotive engineering and manufacturing and I originally intended to work in the automotive/aerospace sector but the economy did not make it possible. Professionally, I design mechanical elements and stress calculations/analysis for a living. Saying engineering laws or phenomena as outdated is a joke. Till you explain otherwise, you have no basis to debunk what I have stated in regards to the principles of materials science and mechanics. There're still other areas of flaws that I did not discuss upon. Realistically, cross-drilling rotors is an obsolete technology and nobody uses asbestos or gas-relief pads anymore. No engineer would approve of this - not just in rotor application but in any kind of structural design with crack initiation(s); not even a student in an engineering discipline. There is more to what goes behind the production phase than what you see. If you don't see what's wrong in this process and the consequential effects later, much can't be done and your research is incomplete. https://www.youtube.com/watch?v=EUanInZmAWI Take this to the career section of NL and "propose" it to the practicing engineers. I don't play with brakes neither do I have to experience a potential or catastrophic failure to learn a lesson and post it to the world. There is a reason why NO manufacturer fits this in their production vehicles. The brand you bought, I know. Since you pushed it, I will disclose it. I have attached images as well. The rotors you have are called "Powerstop." The part number: Front: EBR421XPR and Rear: EBR422XPR. The company has no experience or affiliation with racing of any kind - not even a single sponsor. They have no pedigree. It is based in Illinois and they make rotors (drilled and slotted) for most vehicles (including American trucks and Kia Rio). The rotors are relatively inexpensive and eBay is loaded with it with sellers wanting a sale. Overall, the product documentation is extremely shallow (both sellers and company). Much isn't spoken about philosophy, design, materials and stringent manufacturing procedures that yields the manifested outputs. Plant location…  If I am wrong, the burden is on you to tell me. I will acknowledge. It's not my place to tell you how to spend your money neither did I intend anywhere to devalue . My concern was safety. Also, it will not last 75-10,000km (as you erroneously posted). To neglect the extra caution for what is questionable (and in your view, controversial) is what I find disturbing. At this point, I won't continue with this discussion. The original purpose of the thread will be derailed from its intention. If you disprove me on the product and part number, I will acknowledge but will not respond.
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| Car Talk / Re: What Is The Average Life Span Of A Car? by Trac: 8:10am On Sep 05, 2012 |
Somorin#1: Old wives tale indeed. Give scientific explanations and not what your opinions are. So far, what you've said doesn't hold up laws of physics/mechanics and the principles of materials and fatigue cycle. This will be kept simple and relatively short and start from the obvious. When "whatever" is used to tap the disc, the region of contact is fatigued. What fatigue? Fretting fatigue! This is the damage that occurs where tangential motion (in this case, whatever the tapping tool is) and the other body of contact are under compressive load: in this situation, one of the components must be subjected to bulk loading (the rotor). The result thereafter is potential tangential cracks or cracks at the areas of contact. One single crack initiation is enough to render the whole thing useless. The discs might survive the torment at this point but has been compromised. At this point, you should be concerned about fatigue which is the process where repeated loading cause failure even when the norminal stresses are below the material yield strength. For the character and nature of use of the brakes [all kinds of braking plus antilocks (motion of the rotor is a combination of rotation and translation)], "galling" can occur later during its lifecycle. In other words, it lacks the strength of material to do the appropriate job for the entire duration it is suppose to. If there are cracks already established, they may not be on the surface and if they are, you will not be able to see them visually except the damage has progressively worsened. It'll be worse when it is in the material compound. For the surface inspection, you will need a dye-penetrant with a black light. If it is sub-surface, you will need to do a radiographic or ultrasonic testing. You are to repeat such "quality control" at periodic intervals when used in a passenger vehicle. It is just a bad product design. Other areas of concern is heat and energy translation at every of those cross-drilled contact. To reflect on the product you displayed, visually it doesn't look right. It is also a disc that will rust. It appears as though an ordinary rotor was taken and then cross-drilling and slotting was done. A proper design and build will be cast and not drilled. This way, there is absolutely no high-cycle-fatigue in any point of the material and durability is assured for the entire duration of the lifecycle of the brake rotor. This is justification for the high price mark on it. To answer your question, I have in one of my cars full sport rotors with no structural compromises and it is not cross-drilled. It's been 4 years and not up to 20,000 and the only complaint I have is that the outer sidewalls of the front tyres are worn. The brakes, suspension and tyres were all replaced at the same time. I rarely drive it but the difference is clear from OEM as you can feel the bite as you are behind the wheel due to its coefficient of friction between the braking surfaces. I won't have to worry about cracking because of its manufactured processes plus it is of a reputable brand. You are going to have to explain better than stating you rotate your tyres and your oil change every 5000/10,000km. Your BMW application means nothing to me because you never tested the discs to see how it is holding up. I have conveyed to you fundamentally in mechanical engineering principles why Fretting, Wöhler's Fatigue and Mechanics of Materials is not old wives tale. This also is one of the few areas wrong (heat and thermo was suppressed) with a cross-drilled rotor. |
| Car Talk / Re: Corvettes And Ferrari 360 by Trac: 5:47am On Sep 02, 2012 |
luyang114114: It is not a safe car. |
| Car Talk / Re: What Is The Average Life Span Of A Car? by Trac: 5:35am On Sep 02, 2012 |
Somorin#1: I couldn't help but comment (as it is a concern for safety): your cross and slotted rotors in combination will not last for 75,000 miles or kilometres. You periodically have to take the tyres out and inspect for cracks around the slots to avoid disc fracture. The rotor image you posted appears to be a standard rotor that was drilled and milled. |
| Car Talk / Re: Nairalanders My Camry Is Messing Up! by Trac: 10:02pm On Aug 30, 2012 |
ojmaroni247: Ok den,try cleaning de injector,buy 1 of dis injector cleaners nd turn into ur fuel tank nd see hw it performs This is the only person that made sense. hapiboi: thanks for ur contribution. The plugs are not soaked but dark with soothy fumes. It als consumes fuel like mad. This is part or all of your problem. Your plugs have prosecuted you and exposed your neglect. Take a picture of all your plugs and number of mark the wells they came out from. Take a clear picture of your hood bay as well. Hope you did not throw parts away. Nobody is on-site with your vehicle so I (and concerned NL'ers) will need all the images I can get to you to the furthest help that can be rendered. For the plugs, I'll need the part number and the brand and also the inner profile where the ceramic (white) is situated. If there is huge alphabet on the plug besides its brand name or logo, display it. The process of elimination will begin from here. The mass air flow meter that you took out and the one you mounted should both be pictured and uploaded as well. It'll be useless not to display the part numbers. If you cross-branded the part and you aren't certain it is for your vehicle, you will have to revert to the former; there was nothing wrong with it. If you have faulty ignition cables, we won't be able to help you online. It'll need to go to a shop. A word of caution: under no circumstance are you suppose to use a carb cleaner or choke cleaner (whatever that is) anywhere on that vehicle and worse, when you don't understand what's going on. So far, only three aspects can go wrong. One has been partly identified. Nairalanders from this point will be able to help you (especially those that have the very car this discussion is about). chiebube: SECONDLY, IF UR CAR IS NOT STEADY ON SPEED. CONSIDER CHANGING YOUR FUEL PUMP. ITS JUST N4,000 MAXIMUM. I AM NOT A MECHANIC BUT I HAVE CHANGED FUEL PUMP MANY TIMES BY MYSELF. You have to be very careful giving advise to a person that is desperate. There is nothing wrong with his fuel pump. A carburetor cleaner has no place on an injection engine. |
| Car Talk / Re: Do Not Post Sales Or Adverts In Car Talk Section by Trac: 3:57am On Aug 30, 2012 |
Moderator: I have two posts that turned up hidden. I cannot for sure explain why but it is quite lengthy. For some reason, my browser hangs unexpectedly, so I decided to compose my response on a text editor and paste within the reply the box. Upon editing to correct the correct (to make it presentable), the system ducked it. This is the link: https://www.nairaland.com/1028174/corvttes-ferrari-360#11929959 I did try to re-list it but it suppressed it as well. I guess to lengthy for the allotted time used from respond to send. The second listing can be deleted. Is there a problem with NL's notification system? I have poor notifications and in some cases, no notification(s). |
| Car Talk / Re: Low RPM At Normal Operating Temperature by Trac: 3:49am On Aug 30, 2012 |
Honestly, it bothers me how diagnoses are made without cross-viewing the engine layout or asking questions about the engine's prior state-of-health. Some are recommending adjustments. To diagnose this issue, more questions would have to be asked. At this point, what is sure is that there is a vacuum leak somewhere. Except more information is disclosed that states otherwise, every other service is a waste that may lead to frustration and unneeded money spent. It could be sensors failing, fuel injectors going bad, bad sparks from ignition cables, worn plugs, fuel pump failure etc. It's always a different case on a case-by-case base. More questions should be asked and the process of elimination need to be done. If the vehicle was on-site, a thorough examination would be done. |
| Car Talk / Re: Do Not Post Sales Or Adverts In Car Talk Section by Trac: 3:04am On Aug 30, 2012 |
sultaan: I understand! I remembered when the Auto Forum was just plainly cars and slowly, classified threads started coming up and then gaining momentum. It is a lot better in this format. An improvement to this format will be the repetition of topics (or to put it in better terms, subject matters). There are repetitive topics and over a period of time, it will be clustered with "mirror-like" topics. Salvaging the older topics in the Auto Forum will be some task. This will be dating back to at least 2005 or so. Many of the threads would be obsolete as well. A sticky is a good idea but will not apply to all vehicles. Some cars are more complicated than others. We should also remember that it is not a forum solely for the purpose of diagnosing motor vehicles but motor vehicles in general. Reflecting on your idea about stickies: proper education is what needs to be passed on. Why/how?! If we were to go by principles, we should condemn Nigerians for making purchases for inappropriate conditions. -- but this is for the engineering handbooks and the corporate world. In light of the comprehensive view, it might be the only option due to the conditions and other factors. This is exactly what I meant by the last sentence or two. Most of the cars are non-tropicalised and should not be on Lagos roads. However, there are situations why this isn't so. Different people for different reasons. The damper is a very practical example of my point of view. They are designed for smooth twisty roads in the non-tropical regions. When it arrives in Nigeria (according to what everyone testifies about bad roads because I am unaware), the same OEM should not be reinstall when they fail or loose most of their integrity. It is obvious that damping is a lot rigourous in Nigeria than it would be for the region that it was originally intended for. The solution to this inefficiency is to be in search for the heavy duty variants from selected manufacturers that would never need replacement for the duration of the existence of the vehicle. The sweet aspect is that they are cheaper than what the genuine OEM would sell to you. This is just one of the examples. Another example is to pick steel springs/dampers as opposed to air-rides and be picky about the engine choices. The gasoline to fuel some of the cars in the classifieds is not sold in Nigeria. Then complaints about oil blackening, heat, knocks-&-pings begins to surface and then a counsel surfaces that removing the thermostat resolves it. Enlightenment plays a bigger part as well. If you rollback in time, forum members avoided the V6 engines and they sold cheaper than the 4 cylinder alternatives; the V8's being off-limits. This is not to say that I am endorsing the V6' and V8's. Everybody has their own choices, so therefore none of these are standards neither is any unsuitable for most conditions. It still takes you from A-to-B. My fair contributions: |
| Car Talk / Re: How much does a Key fob cost? Pls help. by Trac: 11:05pm On Aug 28, 2012 |
elviszzz: nairalanders, please help me on the subject above,would appreciate your contributions. It depends on the vehicle. Some in excess of $200 and this might not include the labour to program it. |
| Car Talk / Re: Do Not Post Sales Or Adverts In Car Talk Section by Trac: 11:03pm On Aug 28, 2012 |
I didn't know active efforts were made to break this section off from the Auto section. |
| Car Talk / Re: Corvettes And Ferrari 360 by Trac: 9:20pm On Aug 28, 2012 |
luyang114114: Corvettes are cheap cars. It is also part of the counter-culture of the 60's (Rock/Doo-Wop/Motown) and it draws a lot of attention from Americans than other cars would. Many that know nothing about cars may know what a Corvette is. Europeans don't term the Corvette a supercar because it fails to meet a standard plus it is widely known not to be able to "make a turn." I really didn't get your expression as "a household name" but if you meant common, then I cannot vouch for that. I rarely see them. I did see a bunch of them at the Corvette event and it wasn't that big and I was passing by. There is nothing to impress you about those vehicles. luyang114114: I want to believe you meant the word "civilised." It is NOT a civilised car -- matter of fact, it is a mess. From an intellectual understanding of a motor vehicle wrt design, this shares the same engineering as a tractor save for light materials/component and more powerful engine, long bonnet and a truncated rear. The recipe is about the same and this includes the suspension also. Some Corvettes now have the magnetic ride (MR) suspension and that about what's good. Suspension is a part of the chassis and cannot make a bad chassis good; how much more excellent. Civilised??! https://www.youtube.com/watch?v=K9_w8ETrQPc - Watch those that congregated around the scene, taking pictures. The driver's comment can be observed from two aspects. He was either lying - talking from a false outlook or behind the wheel it didn't seem like he was going fast. You have a false sense of security in a Corvette. Part of it is due to its lowered and excessively wider track width and wide tyres: you go from 100% grip to 0% grip with little to no feedback. The Woodlands https://www.youtube.com/watch?v=kzlg3oQMze4 - This is how it performs on dry road. What is its portion on wet and icy roads. Dallas Cars and Coffee event https://www.youtube.com/watch?v=DDi7OSTHbwQ - another display where power cannot be put to the ground. This is Cars and Coffee event in Houston To those familiar with the location, nothing can go wrong on that surface road from a standstill and alone to 30mph. It fails to make an angular turn from a standstill on an open legal road on a dry sunny day. When a high-performance car at high-speed bring you to a corner (within its envelope), it is suppose to go round or about that corner. This already has failed at a standstill. https://www.youtube.com/watch?v=qmkntJ96aeo https://www.youtube.com/watch?v=KhaYP6a-G3s https://www.youtube.com/watch?v=t70h5NBwBq0& - note - the speed limit is 40mph and a vehicle is done misbehaving in demonstration before it got to half of it. Rainy day - the driver was trying to display to impress https://www.youtube.com/watch?v=tU7FndBwCP8& https://www.youtube.com/watch?v=FGeZ-u1JWNw - fails under a rolling linear acceleration This isn't worth the money no matter how cheap. The technology also is very old. It is not good on road, it isn't good on track. You have to be a professional racecar driver to be able to tame this in its entire "spectrum" for they are the one's with the depth of experience. Don't pay any mind to the reviews you read of the internet. Most of them are not journalists and worse of all, many don't know anything about cars or live with the cars they drive. Some of the cars are poorly tested and then recommended as a "must-have." The Corvette is an over-hyped vehicle and very primitive in design. It is also full of plastic and you will be getting rid of it real quick because it isn't worth the money. In summary, it is unpredictable in a straight line (under acceleration) and it cannot take a corner: this is in reference to its performance way-below its performance envelope limits. It is not close in performance to the Lambo's or the Ferrari. |
| Car Talk / Re: ML320 Or 350 by Trac: 8:06am On Aug 27, 2012 |
Gabrinoz: Need advice on this car Two option: bluetec or V8. Don't overlook the bluetec, it's no slouch in comfort-oriented performance. |
| Car Talk / Re: Corvettes And Ferrari 360 by Trac: 7:39am On Aug 27, 2012 |
Corvettes are Ferrari imitations. Get the real thing if you can afford it. The Corvette has extremely bad motion dynamics: it gives no warning at limits plus it isn't predictable in a variety of cases. |
| Car Talk / Re: Is Antifreeze The Radiator Coolant? by Trac: 7:29am On Aug 27, 2012 |
yungboss: That's alright. Add a more coolant to the mixture. You may have to keep watch over it for the next few days. Watch out for air-bubbles. 1 Like |
| Career / Re: Geez! No Industrial Engineers On Nairaland! Pity! by Trac: 7:26am On Aug 27, 2012 |
Ihedinobi: Some students get bored easily. They are the ones that sleep in class and cannot read a book or comprehend a page of comprehension (comprehension as in "anything" page-long). In some cases, if it isn't in a form of a video or interactive format, they are lost. In that area, discipline has been warped. Watch the videos. |
| Car Talk / Re: Best Oil Grade To Use For Nigerian Car? by Trac: 12:43pm On Aug 24, 2012 |
Ngutor: Trac PLEASE can one use the 5w 30 oils in Nigeria? Are synthetics good for all cars or it is made for specific cars? You can use the 5w-30 in Nigeria. Synthetics are good for all cars, though some believe that the extra cost isn't warranted for an old vehicle. If the vehicle states that you have to use 0w-20 or Xw-20, then stick to that. The first variable (Xw) is only applicable at starting. Once the engine turns over, it cancels out. So, 0w/5w/10w-30 is all the same. The second variable is what matters. The first variable specifies cold fluid-flow. If you have an European car (for example, Mercedes), the oil must meet the minimum requirement of 229.5 sheet spec. This is found in Mobil 1 (M1) fluid and some other expensive oils. The older MB's might pardon but not later engine models. This is due to the materials used in the build. Check your owner's manual. 3 Likes 1 Share |
| Career / Re: Geez! No Industrial Engineers On Nairaland! Pity! by Trac: 12:25pm On Aug 24, 2012 |
Ihedinobi: I got your point of view from the beginning but I guess I didn't "sandwich" (i.e. speak on both sides of the coin ) it right. I made edits to my initial response and took a bulk out of it to make a streamlined delivery. Plus I believe you know what you are saying and doing. A friend of mine took your approach but went on to management and never used his electric engineering knowledge. Those videos are to relay a very disturbing message not to condemn you. You will understand why you thought we were taking things too far. Not everyone can take the path you took. Some eventually go back to school and do something else. However, the case is different when it falls within the category of any of the two videos linked and worse when it is post college. Now, the iPad (for example) has been integrated into learning and slowly books are fading off. I wonder if the word "discipline" would be re-invented. Discipline has been replaced with entertainment and it is worse than the example given. |
| Career / Re: Geez! No Industrial Engineers On Nairaland! Pity! by Trac: 11:25am On Aug 24, 2012 |
Trac: |
| Career / Re: Geez! No Industrial Engineers On Nairaland! Pity! by Trac: 11:25am On Aug 24, 2012 |
Ihedinobi: On a serious note though, I think you guys (AjanleKoko and Trac) are placing the wrong blame on the wrong factor. It takes more than a little courage and unnatural foresight for an inexperienced person under training to break out of the training sequence to do better. And that is what needs to be done. Your perception is wrong. If you cannot articulate what you understand in a certain area of concentration when certain variables have been turned around and twisted, then you lack understanding in that area. You might have knowledge but not understanding. To a level, you are correct (with regards to your opinion) but overall, it doesn't really work in the real world. If everyone had your view, then we will have no progress in civilisation. There is a saying: if you want to hide anything from a black man, put it in writing. Don't fall into that category There was a recent study that stated toddlers being able to get on the internet but not being able to tell the time off a wristwatch.For example, you cannot design complex circuit systems when you cannot find your way around the breadboard. It still doesn't matter what level you attain, if you are an innovator or research scientist in this field, you will still need to make a miniature scale of what your vision or approach is and then blow it up in size or exponent it when it works. The fundamentals matter in all cases. Let's bump that: Skimp through these two. The google video may take a while to buffer but has higher quality. Don't think college (not all but many) will be an exception. -- different fish but the same pond. When the high-school level is broken, who are those that will fill the colleges? Sure 'nough, it's not the kindergartens. Look at this - http://video.google.com/videoplay?docid=9069323583494421392 - higher framerates per second - https://www.youtube.com/watch?v=Bx4pN-aiofw - lower framerate... - http://www.movie2k.to/Waiting-for-Superman-watch-movie-482494.html - stifle yourself on this one. I hope you are aware of the movement going on today? The movement to eliminate stupidity. Do not take me as joking on this statement for I am very serious on this. It is the advanced-human or the plus-human (post-human). This is where all the google "thingy", smart phones, and the reason why many things are going mainstream now. According to Apple, their goal is to reduce humans to a little more than house pets (http://www.theage.com.au/technology/technology-news/humans-become-pets-in-rise-of-the-machines-apple-cofounder-20110603-1fkq0.html#ixzz1RSL7yFc6). This is where the popular culture is heading to. How can one explain away such fancy foundation(s)? |
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