₦airaland Forum

Welcome, Guest: RegisterLoginWith GoogleTrendingRecentNew

Stats: 3,328,810 members, 8,437,521 topics. Date: Thursday, 02 July 2026 at 12:25 AM

Toggle theme

Benz CIS To EFI Conversion (diy ECU "Brain Box") - Car Talk - Nairaland

Nairaland ForumNairaland GeneralCar TalkBenz CIS To EFI Conversion (diy ECU "Brain Box") (5754 Views)

1 Reply (Go Down)

Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 7:30pm On Dec 23, 2017
How to start? Well I did the most logical thing grin and sold my dependable honda for a Benz 10 years older..C124 1989 coupe..the drive was pleasantly different..power was up a lil....my honda was manual, no slouch when kept in the VTECH rev range. The problem started 2 weeks later I knew I was going to have some troubles but boy was I unprepared for the headache called Bosch continuous injection system...

I learnt fast the in and out then came to the realization that it was a loosing battle, parts were scarce and often in bad state.

Option 1 junk the motor buy a c class m111 4 cylinder engine
And convert.

Option 2 convert the m103 6 cylinder to EFI

I chose option 2 because it's harder....really its because I already have one( lowest budget possible), and the need to experiment ....and I love the howl of the 6 when revved hard!!!!

After so much research, head scratching, parts scrouging


https://www.youtube.com/watch?v=J2mSOEUshU0
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 9:10pm On Dec 23, 2017
Pic

Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 6:59pm On Jul 04, 2020
This has subsequently been swapped with a m11.975 kompressor engine after running the DIY setup for about 2 years. The engine is now being controlled by a professionally made standalone controller LPC8 by Baldur from www.controls.is . All wiring and tuning has been done here by me.

Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by NaijadrivaCars: 10:40pm On Jul 04, 2020
You do well Three Pointed Star Monk
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by dicksonadams(m): 3:56am On Jul 05, 2020
Nice
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by kingreign(m): 6:31am On Jul 05, 2020
Ok
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by HeavenlyBang(m): 8:01am On Jul 05, 2020
xfay:
This has subsequently been swapped with a m11.975 kompressor engine after running the DIY setup for about 2 years. The engine is now being controlled by a professionally made standalone controller LPC8 by Baldur from www.controls.is . All wiring and tuning has been done here by me.
This is honestly impressive.
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by thebigkendo(m): 9:16am On Jul 05, 2020
NaijadrivaCars:
You do well Three Pointed Star Monk
grin grin

Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by AutoElectNG: 9:57am On Jul 05, 2020
xfay:
...but boy was I unprepared for the headache called Bosch continuous injection system...

I learnt fast the in and out then came to the realization that it was a loosing battle, parts were scarce and often in bad state.

Option 1 junk the motor buy a c class m111 4 cylinder engine
And convert.

Option 2 convert the m103 6 cylinder to EFI

I chose option 2 because it's harder....really its because I already have one( lowest budget possible), and the need to experiment ....and I love the howl of the 6 when revved hard!!!!

After so much research, head scratching, parts scrouging


https://www.youtube.com/watch?v=J2mSOEUshU0
Maximum respect for doing the sort of thing that is so hard to see on these streets.

Electrical engineer by any chance or avid enthusiast?
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 8:15pm On Jul 07, 2020
AutoElectNG:
Maximum respect for doing the sort of thing that is so hard to see on these streets.

Electrical engineer by any chance or avid enthusiast?
Electrical Engineer � +avid automech enthusiast
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 8:33pm On Jul 07, 2020
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by AutoElectNG: 9:03pm On Jul 07, 2020
xfay:
Electrical Engineer � +avid automech enthusiast
Like what I saw.

Would like to see more of projects like yours, such as rusEfi, megasquirt, speeduino here as well
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 8:00am On Sep 24, 2022

https://www.youtube.com/watch?v=lzz1nqoisao

At it again from a different angle grin

190e V8 swap
Pls like and subscribe for updates
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by Kirkman:
xfay:

https://www.youtube.com/watch?v=x3DJAJX12mU
Chai! Hearing the sound of that engine got me like grin. You sir; have done very well in terms of this conversion. I am sure this vehicle would serve you many more years. Apart from the engine did you make any other subtle changes to the car in terms of suspension, brakes, steering rack?
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 7:33am On Oct 29, 2022
With big engine comes 'big" Brake upgrade for the V8 190e. Will be using parts readily available in our local market here

https://youtu.b+e/X2f_UgyQFng

Pls like and subscribe to the channel, gunning for 100 subscribers soon
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by Kirkman: 4:34pm On Oct 30, 2022
xfay:
With big engine comes 'big" Brake upgrade for the V8 190e. Will be using parts readily available in our local market here

https://youtu.b+e/X2f_UgyQFng

Pls like and subscribe to the channel, gunning for 100 subscribers soon
Oga the YouTube link that you posted is not working at all..
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by xfay(op): 9:01pm On Nov 02, 2022
Kirkman:
Oga the YouTube link that you posted is not working at all..
Sorry about that


https://www.youtube.com/watch?v=X2f_UgyQFng
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by JohnMurphy(m): 4:26am On Nov 03, 2022
Woo, Impressive.
Re: Benz CIS To EFI Conversion (diy ECU "Brain Box") by Sixaxis: 3:09pm On Dec 19, 2022
Pls, let’s chat.
08067444333
1 Reply

ECU (brainbox) And Car Electronics Related ProblemsMy Toyota Corolla's Brain Box Has Been Stolen!Help With Brain Box Number234

I Need A New CarHow Much Does Lexus Gx470 ECU (brain Box) CostThe Meanings Behind These 15 Symbols On Your Car's Dashboard