₦airaland Forum

gbonsalifus: Very good answers have been given already. But to make the answers as simple and direct as the question for just anybody:
(a) A turbo charger is a very simple device like a small turbine that's mounted on the exhaust manifold/system of an engine. Its function is to force in more fresh air into the combustion chamber for better burn/pressure, hence, more power as u rightly stated.
(b) U dont need to bother about its reparability as a turbocharger is as simple as your car radiator and fan system. It can be managed by any fairly good mechanic.
Just to add, the charger is mounted on the exhaust system so that the high pressure exhaust gas from the engine can drive/spin the turbine. If it is driven by something else (like an electric motor, sometimes), it is called a super charger.

101carsense..com

And if it is driven by a belt it is called what?

timbros: How do I calculate me MPG please? It seems my '96 Camry is guzzling fuel too much now more than before.

Help needed asap please.

Step 1. Fill your tank
Step 2. Reset your odometer or write down your mileage at the gas station b4 you drive off
Step 3. Drive like a normal day for 3 days or when you need to refill
Step 4. Refill at a reliable gas station and note the amount of gasoline you used.
Step 5. Note your Odometer before you drive off
Step 6. Subtract initial mileage from final mileage which is = Mileage traveled
Step 7 Divide Mileage traveled by gas used to refill. Your answer is the you MPG.

NOTE MPG= Miles per gallon. So you are dividing miles(not Kilometers) by Gallons(not Liters). Please do a conversion if you have you values in SI units

One more thing, you need to cool the compressed air(Inter cooler). compressed gas gets hot (Ideal Gas law or combined gas laws) and can cause pre-ignition and overheating.

Trac: You are correct, all he needed was the first response. My contribution was to supplement the youtube links in the first response. Without the arithmetic expression, the content could still be understood plus economic considerations were factored into my response. The OP had no problem with the content.



The content is not complicated. Anyway, as you stated it's a gizmo. Blunt truth! In actuality, it's a gimmick when you understand how heat-engines express themselves. There is no increase in efficiency. It's just a hyped perception for us to manage-with and accept the huge inefficiencies.



Sincerely; "turbos" (the vehicle) do NOT run on air. It is also out of the realm of the mechanics. The formulation (or configuration) of the fuel in liquid-state sold in Nigeria does not lend itself favourably to such sub-systems. It has nothing to do with the mechanics but operational. This is further exacerbated with the fact that most of such engines require a state-of-health to be at least near-optimum. It's one headache that can be avoided.

I disagree with you. If you agree that turbos increases torque then how does it not improve overall efficiency? If more torque can be gotten by turbos, you can have a smaller engine with high torque and a higher gear ratio. You save weight by using a smaller engine and you can use more gears in the box.

Dude you need to buy 4 tires. They all have different thickness from my calculation. A similar analogy is trying to put up a table with 4 different leg lengths, not so stable i guess, then imagine the instability on high speed. similar size tires on the same axle is a lot better than what you are having now.

235-50-18 means 235 mm tire width and 50% of 235 mm as the tire wall height (from rim edge to tire surface) and 18 inch rims

Do the calculation for all 3 tires and you would see what i mean.

What is the size of the 4th tire? Also the Trim and engine size of your car?

Siena: Interesting!

What are the engine sizes of your vehicles?

Lexus is a 3.5 Liter V6 coupe. The Murano is a 3.5L V6 SUV(sold). The Tundra is a 5.7 litre V8. Just got the Tundra

My Lexus does 32MPG HWY (Premium) and my Tundra 15 MPG city 18 MPG HWY (Regular)
My murano did 24MPG HWY at 70 mph on Premium gas

Just to let you know, your mechanic didn't adjust s'hit. Your car idling is "Auto adjust", you would need to reprogram the ECU aka brain box for the idling to change. It is a complex stuff and it is Illegal in most countries. I do not recommend it. What ever he did is not the solution. To solve your problem do a scan first.

Siena: There's a 1 litre cubic capacity difference.

LOL. I guess he means more details like fuel economy, life span and (most important of all among Nigerians)cost of repairs.

Turbos are easy to fix. Any mechanic that can't fix or change a car turbo should not hold a spanner or look under a hood

sultaan: Trac light comes one when you post with words like coefficient of friction, dynamics of elasticity and the limits of motion.

LWKMD . I guess he hasn't seen this
"Limits of motion"... ...I learn new things every day

For me, over 250HP, Auto transmission, alloy wheels, Navigation, V6 or V8, RWD or 4WD, traction control, ABS and any other gadget that can improve performance is a plus.

Siena: Bro, from your experience, how did you work out gas mileage?

We're talking about two similar models - same make, model, engine capacity, but one 2WD, the other 4WD. The gas mileage of the AWD will be poorer. This is not an opinion, it's a scientific fact.

The 4WD version of a particular model also tend to be lower geared, which also hurts gas mileage. Low gearing, more internal friction (rolling resistance) more load and weight will NOT improve gas mileage when compared with a 2WD model of the same vehicle with higher gearing, less internal friction, less load AND weight.

The same way two similar vehicles, same engine capacity, one FWD and the other RWD. RWD will be thirstier, due to the greater drivetrain losses. The further engine output has to travel to get to the driven wheels, the less economical (and efficient) the car will be. AWD sends power to all 4 driven wheels, and from your "experience" it has better gas mileage than the equivalent 2WD model?

Adding to what siena mention above 4WD are heavier compared to the 2WD versions. Its and extra shaft, extra gears in the box and i some cases an extra axel.

Trac: A head-start for you: inertia!

You have less torque per unit wheel against inertia. Mass is quad-divided.

Energy Transfer law and friction and Difference in mass disprove the fact that 4WD are less thirsty than 2WD of the same model.

[quote author=‘Jägermeister’]The ES300's are all-the-way special because they're uncommon as the camry's...I ditched the '05 accord for my ES300 & till now, I feel happy for that decision... To answer ur question, u don't see them around because they're not ur regular honda's & toyota's, they were built for men & not boys, they come in one trim(base) & with its standard V6, boys will run for safety, it loves fuel..I'm glad that I can afford all the fuel it needs! [/quote]You are wrong,They come in at least 3 trims with the same engine (At least 3 cos some car makes do cars EXCLUSIVELY FOR SPECIAL CLUB MEMBERS like MB does for MB club members).

[quote author=‘Jägermeister’]All-wheel is better on gas-mileage, it has a quicker acceleration therefore reducing the amount of cylinders/valves it fires @ a time, they're designed to apply more horse-power quicker than 2-wheelers, this improves fuel economy! locking differentials are better active on typical 4-wheelers too,if available![/quote]Really? Still trying to wrap my head around this statement.

If he can let you scan the car please do and find the cost to fix it.

The easiest explanation means one or more of the 6 cylinders is/are not burning fuel right. The cause could range from a simple thing like bad spark plug, bad coil or boot, and difficult/ expensive as a bent con rod, crank or cylinder head. It could be a sensor or a bad injector. I wouldn't say don't buy but u could ask him if you can do a scan(if the deal sounds good ). Most dealer would fix most minor problems so as to max profit.

elektra80: U really are expecting a v8 engine to give u the same mpg as a compact I4? Do u know a 2012 Toyota Sequoia has an average mpg of 15?

A friend of mine has a 2010 GMC Sierra V8(Same Engine with a silverado). Its has the ability to shut down 4 cylinders at city traffic/ at low speeds . At that mode it does 26 MPG

I have heard people say it causes incomplete combustion cause its load on the engine with low fuel supply. I'm not sure that is true in injectors cause you have your MAF and IACV doing all the mixing at right proportions.

yungboss: nice kill...whats the bhp of your Lexus?

Its 306 hp V6 3.5L. RWD. Semi auto with paddle shifters. On 18 inches Bridgestone. Retractable hard top, premium gasoline. https://www.nairaland.com/799009/list-cars-owned-post-photo/8#18191850

Legal race= no. But between traffic light yes. Raced a challenger v6 on Sunday night.my Lexus ISC did a nice was mor than a car length from him. It was straight line about 1/4 mile( drag race length). wouldn't try tracing an SRT8.

ikeyman00: @@@

firstly check ur alternator

then check ur earth wire! return wire is well rigid on the body and the engine block

an open circuit will maintain a battery uncharged while at the same time taking away charges

still me! hm

Please explain this your theory. I only know the opposite of what you said. So how does an open circuit take away charge from a battery?

ZIM DRILL: in simple english ABS has nothing to do with braking distance but it enables the car to be steered in any direction during braking since the wheels wont be locked in one direction

https://www.youtube.com/watch?v=mKiTAcXK6M4

I cannot believe you typed this . Basic physics knowledge of motion tells you friction is need to stop. And don't believe everything you see online.

When you skid you have very low coefficient of friction. You need friction to stop and the traction for control of the car.

So tell me how does NO traction help in breaking and maneuvering?



ABS system gives the breaking fluid a pulse like motion when its applied. The pulse gives intermittent grip same idea of pumping your break. The idea comes from the inverse reation ship of heat and friction ie the hotter an object the less the friction. When your break locks the disc are to hot the pad almost glides on it (reason for the invention of ventilated brake disc).

I hope this helps you understand more on ABS

dsunmade: I drive a manual 1998 Toyota Avensis, 1.8 liter petrol engine. [b]Anytime I top up or fill up the ac coolant and drive, it drags the engine. [/b]The acceleration slows significantly and I often have to switch off the AC while attempting some race car maneuvers. Is this normal or is it a symptom of an underlying problem? Thanks for your candid, well-informed advice.

First of all you need to check your AC system, l believe it has leaks somewhere. The car ac system doesn't require refills very often (only1 refill on my present car in 3.5yrs).Secondly You also need to check the freon pressure, mine requires 40 psi on the high end and it still cooled at 33psi before I recharged it. Most cars range between 35 to 45 psi. Over charging would put stress on the compressor in turn the engine and that would reduce your speed.

Remedy: Check for freon leaks using a dye pumped into the system (ask your mech he knows what I am talking about). Also check your condenser, the fins might be clogged with dirt. Clogged fins causes an inefficient heat exchange process(reduced surface area. If you know thermodynamics you will understand)

You dont need to recharge as often as you think

lomomike: And your point is? You only came here not to correct but to criticize.... Typical MrKnowItall (all noise yet no meaningful word) the last time I checked, mama Ngozi's dog Bingo still barked with its tail between its legs and hasnt chased even a mice. SMH

See pot calling kettle black
I hope you feel accomplished mr keyboard warrior. Your insight and opinion is what we need.

This thread is funny and confusing. the op is uninformed, more than 70% of the replies are from uniformed people( like a blind leading a blind) and the resulting argument are baseless and illogical

This has to be the most retarded_thread on Nairaland.

[quote author=Cruise-z]is it available in Nigeria? And what's the price pls?[/quote]I am not in Nigeria

If you don't find Seafoam, try Chevron Techron concentrate. That's what I use and it works great.

Just my 2 cents.

jakigaga: A 2008 Toyota corolla belonging to a relative recently had a serpentine belt failure whilst they were travelling.I was called and I had the vehicle towed to my house.As i was only in town for the holidays,I had my mechanic access the car and I left town.He told her that the serpentine belt,top cylinder gasket and water pump will have to be replaced.Yesterday i got a call from her that someone else had come to check on the car and that a new engine had to be procured because the pistons where broken.I would appreciate if anyone has experience of that happening.The only way i see that happening is if the the temperatures in the combustion chamber got so high to cause brittle fracture.

PS:there was no tapping noise when the car was being towed.

^^^A female driver. Not that i am sexist but we all know most female are not into cars like males

Bro no now. I don't look for trouble and you are nice guy ,..,..,..well so far .

Ikenna351: Peugeot calls in Auxiliary belt, while some calls it serpentine belt. They mean the same thing. French calls theirs "Servo", while Americans call it brake booster. Likewise, Peugeot calls theirs "ECU", while some brands call theirs ECM or PCM. All mean the same thing.

Not all Auxiliary belt drives water pump. Most cars with timing belt have water pump driven by the timing belt, while engines with timing chains, especially with timing chain have their water pump driven by the Auxiliary belt.

My ES9J4S water pump is driven by timing belt, not auxiliary belt. My ZN3J water pump is driven by Auxiliary/Alternator belt. The camshaft is timing chain driven.

Since you are saying the auxiliary /serpentine belt drives the car in question water pump, its likely that the engine overheated. But that does not call for water pump replacement. If the WP (water pump) still spin freely when turned with hand and the bearing is not shaking or dragging, wetin concernWP with the belt that broke? Is the WP leaking coolant?

Ikenna.

icemann: The car is chain driven. so are you still calling it belt or chain?
I am sure the Mech and owner can differentiate between a belt and chain

It wasn't the OP's Car so i guess he didn't have the full story

That is Why i sad "It is chain driven".

Ikenna351 you are an auto guru you should know this.

ZIM DRILL: it doesn't matter whether you call it timing belt or chain, they still the same job the only difference is what there are made of timing chain is chain made of steel and belt made of rubber

but the question is whether the auxiliary belt can cause pistol and valves damage the answer is no also unless the owner is confusing between timing chain/timing belt (depends on car and model) and auxiliary belt

there is also confusion in the original post

He told her that the serpentine belt,top cylinder gasket and water pump will have to be replaced.

unless he guy is lying and is trying just to squeeze more on the gasket and water pump when is only supposed to change the auxiliary belt/serpentine belt

The answer to your question is YES
And i explain= When the belt ripped, the battery was powering the ECU and the car kept on going. With out an ACTIVE water pump and i guess the belt broke the fan (Happened to a friend) Your car will over heat. To make the scenario worse if the car was idling in the same spot it wouldn't take long to over heat in this hot summer.