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Interested to know if the AMG fuel pump will fix the issue.
When i removed my stock pumps to replace them with the AMG pumps i found that my pump was weak and almost dead.
After installing the AMG fuel pump i discovered that AMG fuel pump controller is also needed as the AMG pump is using different three phase motor than the stock 550 pump. After installing the controller (finger crossed) the car will be completed and will report back.
Meanwhile the final mod that i made and the last to ever made on that car was installed (652x450x26mm) intercooler heat exchanger. It works with the stock one also installed and both are more than enough to keep the IAT as low as possible (paired with CWA 100.2 pump) all the time even on many hard accelerations. It's not thick and do not block the main radiator stream.
Last edited by gardevski; Sep 11, 2016 at 04:49 AM.
When i removed my stock pumps to replace them with the AMG pumps i found that my pump was weak and almost dead.
After installing the AMG fuel pump i discovered that AMG fuel pump controller is also needed as the AMG pump is using different three phase motor than the stock 550 pump. After installing the controller (finger crossed) the car will be completed and will report back.
Meanwhile the final mod that i made and the last to ever made on that car was installed (652x450x26mm) intercooler heat exchanger. It works with the stock one also installed and both are more than enough to keep the IAT as low as possible (paired with CWA 100.2 pump) all the time even on many hard accelerations. It's not thick and do not block the main radiator stream.
If your original pump is almost dead, maybe all you need is another original pump ??
I have retrofited the AMG fuel pumps with success. Used the original Fuel pump controller but rearrange the wires to be able to run the pump. No more fuel pressure drops under any load. Will schedule dyno session in the next 10 days to see the final result. The car is very very fast 0-200km/h under 10 sek.
Originally Posted by cocobeex
If your original pump is almost dead, maybe all you need is another original pump ??
I have retrofited the AMG fuel pumps with success. Used the original Fuel pump controller but rearrange the wires to be able to run the pump. No more fuel pressure drops under any load. Will schedule dyno session in the next 10 days to see the final result. The car is very very fast 0-200km/h under 10 sek.
My car is complete. The car feature the following:
M157 turbochargers
Intrcooler system upgrade (pump and very big heat exchanger)
1 step Colder Spark plugs
k&N air filters
Custom turbo-back downpipes
3 inch full exhaust
100 cell racing cats
Custom ECU Tune
AMG Fuel pump
AMG front and back calipers/rotors
amg body kit (better for cooling the engine), new Diamond White Pearl
4matic with quaife Limited Slip Differential
Power: 723hp 1222N/m on 93 gas
To have an idea for the result. Yesterday we had dyno session with all our cars: Ml63 amg 2013, CLS63 amg 2013 PP and my cls 500 4matic. The ML63 made 691hp and 1250n/m, CLS63 AMG PP 699hp and 1380n/m (it has full 3 inch exhaust from HMS, carbon ceramic brakes..) and my CLS500 723 and 1222n/m. Same day, same tunner, same dyno.
Glad everything came together! Awesome Results!! Do you have any graphs? Id like to see the powerband difference from the M157!! M278 having a bit more compression should be quite a little monster!
No. The gearbox is stock and it's performance is more than great. At this power levels i didnt see any difference in gear changes compared to my cls63 amg 2013. Is has same speed and response, very quick when you step on it.
Last edited by gardevski; Nov 11, 2016 at 05:01 PM.
Glad everything came together! Awesome Results!! Do you have any graphs? Id like to see the powerband difference from the M157!! M278 having a bit more compression should be quite a little monster!
Yes. I already requested my dyno sheet to be send be email by my tuner. It was a long day with all three cars and i forgot to take the sheets.. Will post it as soon as i have it
Yes. I already requested my dyno sheet to be send be email by my tuner. It was a long day with all three cars and i forgot to take the sheets.. Will post it as soon as i have it
Wow!!! That's awesome!!!
Is it stock m157 turbo ?
No mod on the m157 turbo ? Just with ECU tune ??
Is it stock m157 turbo ?
No mod on the m157 turbo ? Just with ECU tune ??
Yes. Stock m157 turbochargers with no upgrades on them No matter m157 or m278 engine, the turbos are the limit of the engine. With upgraded m157 turbos m278 will go well over 800hp..
Yes. Stock m157 turbochargers with no upgrades on them No matter m157 or m278 engine, the turbos are the limit of the engine. With upgraded m157 turbos m278 will go well over 800hp..
I have got a pair m157 waiting to be installed.
I'll wait for Weistec, as I know they are developing the tune for modded m157 turbo, for m278 engines.
I have got a pair m157 waiting to be installed.
I'll wait for Weistec, as I know they are developing the tune for modded m157 turbo, for m278 engines.
I was about to also mod the turbos before the installation in my car. The issue i see with this engine is the higher compression ratio. The M278 is 10.5:1 and the car is about to knock if not tuned right. With high flow turbochargers it need a lot less compression ratio. My car with the stock m157 turbochargers is flawless. Will post dyno sheet later today.
Also the 4matic's front axles are on their limit with 1200+ n/m torque as our cars are 45/55 front/back (for example the amg s 4matic is 33/67-percent front-to-rear torque split The front axles are 1/2 the diameter of the rear...
I was about to also mod the turbos before the installation in my car. The issue i see with this engine is the higher compression ratio. The M278 is 10.5:1 and the car is about to knock if not tuned right. With high flow turbochargers it need a lot less compression ratio. My car with the stock m157 turbochargers is flawless. Will post dyno sheet later today.
Also the 4matic's front axles are on their limit with 1200+ n/m torque as our cars are 45/55 front/back (for example the amg s 4matic is 33/67-percent front-to-rear torque split The front axles are 1/2 the diameter of the rear...
Great build and results!!!
Do you have any plan on offering a package thru your company in the future or was this a one-off build?
Companies commonly announce upcoming products in development for marketing purposes...
I really have no idea why they keeps it secretly.
But as I checked with them, it is in progress.
Like I said, call them and find out.
There are 2 options for me.
1. Just install stock m157 turbo on, and do a ECU tune, like what OP did.
2. Wait till Weistec finish their project (They said around Mid December 2016). But I have a feeling, there will be a lot of things needs to be upgraded at same time.
Originally Posted by gardevski
I was about to also mod the turbos before the installation in my car. The issue i see with this engine is the higher compression ratio. The M278 is 10.5:1 and the car is about to knock if not tuned right. With high flow turbochargers it need a lot less compression ratio. My car with the stock m157 turbochargers is flawless. Will post dyno sheet later today.
Also the 4matic's front axles are on their limit with 1200+ n/m torque as our cars are 45/55 front/back (for example the amg s 4matic is 33/67-percent front-to-rear torque split The front axles are 1/2 the diameter of the rear...
That is amazing what you have done there.
I might just go with the same mod.
Might be cheaper this way than having turbo modded.
Turbo modded = lot more thing might also need upgrades, such as transmission and axles.
I do have a question about the fuel pump.
Was your original fuel pump nearly dead ? or does it really need an AMG pump in order to supply enough fuel to the engine ? (The tune need more fuel ?)
Someone told me original fuel pump should be sufficient. Thats why I am asking.
Last edited by cocobeex; Nov 13, 2016 at 05:54 AM.
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