M278 to M157 turbos and AMG fuel pumps?




And a stupid question lol, i notice that you use "hv" while western countries use "hp." What is the full meaning of hv? And I think the way European and western countries measure horsepower, there is always a slight discrepancy between the #s.
) These engines and trans can handle this kind of power well when tuned right and taken care.Before in this thread squantum said his TCU limits are set in 1200nm every gear. Mine are set in 1000nm in every gear. Before us Gardevski did beat his really big power M278 really lot and it did still hold. like +800hp and +1200nm.
Yes there could be a little difference in HP. Like our cars are rated stock 403hp or 408hv. In Finland that HP= horsepower is HV= hevosvoima
So horse is hevonen in Finnish and power is voima. Now u learn Finnis language here my man! HehMy car is now 608hp and 900nm crank.
) These engines and trans can handle this kind of power well when tuned right and taken care.Before in this thread squantum said his TCU limits are set in 1200nm every gear. Mine are set in 1000nm in every gear. Before us Gardevski did beat his really big power M278 really lot and it did still hold. like +800hp and +1200nm.
Yes there could be a little difference in HP. Like our cars are rated stock 403hp or 408hv. In Finland that HP= horsepower is HV= hevosvoima
So horse is hevonen in Finnish and power is voima. Now u learn Finnis language here my man! HehMy car is now 608hp and 900nm crank.
608 at the crank, you sure? I believe that 608 is to the wheels with the AMG turbos. With stage 2 and e85, I'm rated at 580 at the crank. You should have that number on the wheels. Gardevski had 700+ to the wheels before he started adding Meth and even bigger turbos.




608 at the crank, you sure? I believe that 608 is to the wheels with the AMG turbos. With stage 2 and e85, I'm rated at 580 at the crank. You should have that number on the wheels. Gardevski had 700+ to the wheels before he started adding Meth and even bigger turbos.
Later when weather goes colder/normal tuner will finish the job and try to get out like 660hp-700hp range crank. That is the max crank hp what M157 turbos can offer me with pump gas.You see here on high quality German tuner GAD motors website https://www.gad-motors.de/e63 There u can see what power and mods they are using and its crank horsepower what is there.
So yes im talking crank power. Gardevski crank power was something like 720hp if I remember correct. I think without Ethanol blending these M157 turbos can't produce so much power. Maybe the black boost intake will help too. I think with pump gas the max is 700hp range. It depends of course the dyno also. Some dynos read low some real high.. So the best way to see how good our cars perform is Dragy. With that we can see world wide our fellow enthusiast 0-60mph and 1/4 mile times and compare how's our cars are doing.
Please Dragy your cars 0-60mph and 1/4 mile so we can compare someday.
Later when weather goes colder/normal tuner will finish the job and try to get out like 660hp-700hp range crank. That is the max crank hp what M157 turbos can offer me with pump gas.You see here on high quality German tuner GAD motors website https://www.gad-motors.de/e63 There u can see what power and mods they are using and its crank horsepower what is there.
So yes im talking crank power. Gardevski crank power was something like 720hp if I remember correct. I think without Ethanol blending these M157 turbos can't produce so much power. Maybe the black boost intake will help too. I think with pump gas the max is 700hp range. It depends of course the dyno also. Some dynos read low some real high.. So the best way to see how good our cars perform is Dragy. With that we can see world wide our fellow enthusiast 0-60mph and 1/4 mile times and compare how's our cars are doing.
Please Dragy your cars 0-60mph and 1/4 mile so we can compare someday.

I was emailing Jerry at Eurocharged and he said he can get the car to 700whp with M157 turbos AND E85. But, if I do the turbo upgrade, I might go with a custom dyno tune. Bc one guy on a Facebook group is running 545whp with just Stage 2 custom dyno tune on 93 gas. That is like 630-640 engine hp. I'm lowkey disappointed with the only 500whp on 91 gas + E85 lol.
I was thinking to get the draggy device. Is this the one or are there different models and such:
https://www.dragy.ca/products/dragy-...BoCNb8QAvD_BwE




I was emailing Jerry at Eurocharged and he said he can get the car to 700whp with M157 turbos AND E85. But, if I do the turbo upgrade, I might go with a custom dyno tune. Bc one guy on a Facebook group is running 545whp with just Stage 2 custom dyno tune on 93 gas. That is like 630-640 engine hp. I'm lowkey disappointed with the only 500whp on 91 gas + E85 lol.
I was thinking to get the draggy device. Is this the one or are there different models and such:
https://www.dragy.ca/products/dragy-...BoCNb8QAvD_BwE

With E85 blends there are really big gains as u say and have talked with Jerry. If our cars were flex fuel cars from factory and could adapt automatically E85 and pump gas I would gone the E85 blends straight away now. Even my old Saab is flex fuel car and its 14 years old.. My Saab have now bigger turbo, injectors, fuel pump, 3"DP etc. but thats a different story.. Lool
What turbo is that 545whp stage 2 93 gas custom dyno tune guy using? It have to be M157 turbo not M278 turbo, right?
Yes that's the Dragy.
Last edited by PekkaH; Jun 27, 2021 at 03:45 AM. Reason: typo

With E85 blends there are really big gains as u say and have talked with Jerry. If our cars were flex fuel cars from factory and could adapt automatically E85 and pump gas I would gone the E85 blends straight away now. Even my old Saab is flex fuel car and its 14 years old.. My Saab have now bigger turbo, injectors, fuel pump, 3"DP etc. but thats a different story.. Lool
What turbo is that 545whp stage 2 93 gas custom dyno tune guy using? It have to be M157 turbo not M278 turbo, right?
Yes that's the Dragy.
I'm really rooting for ~650whp when i do the upgrade. And run it till it dies after 5 years lol
Damn, how much power you got in that killer Saab? lol
So I just asked him if he has stock or M157 turbos, but on his write-up, this is what he mentioned:
It produced 545whp and 590ftlbs utilizing obx Downpipes and k&n drop in filters tuned on Hptuners running 93 octane. I am planning to return this month to tune of e40 after I install my aftermarket heat exchanger, split cooling mod and home made intake spacers.




I'm really rooting for ~650whp when i do the upgrade. And run it till it dies after 5 years lol
Damn, how much power you got in that killer Saab? lol
So I just asked him if he has stock or M157 turbos, but on his write-up, this is what he mentioned:
It produced 545whp and 590ftlbs utilizing obx Downpipes and k&n drop in filters tuned on Hptuners running 93 octane. I am planning to return this month to tune of e40 after I install my aftermarket heat exchanger, split cooling mod and home made intake spacers.
Custom tune would always be the best option, every car is a little different and on those power levels me personally don't want to try any " mail box " ECU just custom to my car.
I think your goal is realistic and you can reach that with M157 turbos.My current Saab doesn't have so much power. Like 280hp crank. Its my winter time car. One Saab that I had before was really fast car. It made 430hp crank with fwd
Oh boy it was funny car to accelerate. It did spin the tire first, second and even third gear.. Lool. On highway speeds it was really nice. And that car was only pump gasoline.
Last edited by PekkaH; Jun 28, 2021 at 01:16 AM. Reason: adding




1/4 Mile 11.24s and trap speed 126mph

0-60 3,39s
1/4 mile was a little too much slope -1,17 and 0-60 was valid. These times can tell what M157 turbos can do with our cars. After ECU fine tune session I hope times will be even better.
The Best of Mercedes & AMG
1/4 Mile 11.24s and trap speed 126mph

0-60 3,39s
1/4 mile was a little too much slope -1,17 and 0-60 was valid. These times can tell what M157 turbos can do with our cars. After ECU fine tune session I hope times will be even better.
Question, which car did you get the turbos from? Or does the car even matters or as long as the turbos are from the M157 engine? Was it a direct bolt-on fit or needed some modification? Any issues during installation?




It was direct bolt on, no issues on turbo install at all. In 4 Matic the engine must go down and all off on the front like bumper, lights, air condition etc, so a really big job still. Like said before one good Mercs shop did it for me, I haven't that much skill or tools what so ever to do that. But its worth it. Love how the car is now going. And the TCU is really must to do, soo nice!
Remember that u need the M157 fuel pump and fuel filter/FPR side too if u want all the power what those bigger turbos can deliver.
On this topic there are listed all gasket numbers etc. what I did need, u can check those if u like.
It was direct bolt on, no issues on turbo install at all. In 4 Matic the engine must go down and all off on the front like bumper, lights, air condition etc, so a really big job still. Like said before one good Mercs shop did it for me, I haven't that much skill or tools what so ever to do that. But its worth it. Love how the car is now going. And the TCU is really must to do, soo nice!
Remember that u need the M157 fuel pump and fuel filter/FPR side too if u want all the power what those bigger turbos can deliver.
On this topic there are listed all gasket numbers etc. what I did need, u can check those if u like.
I see. That's good to hear that they are a direct fit. Didn't need to play around with the manifold or anything?
No, I haven't bought them yet. I was looking at a pair, but they came off a 2011 S63 AMG, but the card had burn damage. Seems like the burn was on top of the engine through the hood. From the pictures, the turbos look untouched. But I am now unsure if I should get them or not.
I've emailed a local tuning shop and asked them a few questions for staying on stock turbos and maybe I will be able to get around 550-580whp with E85. If I can get close to 580whp...I might stay with stock turbos. The amount of $ and time I would need to invest in the mods to upgrade isn't in my favor to spend $6k (that is if I buy new VRP turbos). Used M157 can be done in less, but I'm a bit afraid that a bad piece of turbo could mess me up big time if not done right or turbo end up being faulty a year or two years later. Just a bit paranoid lol




No, I haven't bought them yet. I was looking at a pair, but they came off a 2011 S63 AMG, but the card had burn damage. Seems like the burn was on top of the engine through the hood. From the pictures, the turbos look untouched. But I am now unsure if I should get them or not.
I've emailed a local tuning shop and asked them a few questions for staying on stock turbos and maybe I will be able to get around 550-580whp with E85. If I can get close to 580whp...I might stay with stock turbos. The amount of $ and time I would need to invest in the mods to upgrade isn't in my favor to spend $6k (that is if I buy new VRP turbos). Used M157 can be done in less, but I'm a bit afraid that a bad piece of turbo could mess me up big time if not done right or turbo end up being faulty a year or two years later. Just a bit paranoid lol
Good luck what ever route you choose to go!
I have a 2011 CLS550 with the aim to get it faster, too.
Currently I have done:
-M157 Turbos
-catless downpipes & straightpiped exhaust
-split IC mod
-K&N filters
How did you mod the IC pump to get it on at all times? I don't have the relay next to the expansion tank like the newer models.
And what kind of TCU tune are you running? I need that too

I have the M157 fuel pumps lying around but I don't see the necessity to install them yet?
Thanks Rod
Last edited by rusher; Jul 30, 2021 at 06:10 AM.
100-200 kmh run win cooling problems




Nice to hear that you have done the turbo swap also. Can you tell what problems you have with cooling and what kind of power is in the car now? Any dyno?
I have run 100-200km/h in 7,49 Dragy and 608hp crank power.
With this tune my car hasn't been on dyno, previous tuner which also had dyno, failed to tune my car with turbo upgrade it was overboosting🤦♂️, so went with another tuner and he got the job done but he didn't have dyno.




With this tune my car hasn't been on dyno, previous tuner which also had dyno, failed to tune my car with turbo upgrade it was overboosting🤦♂️, so went with another tuner and he got the job done but he didn't have dyno.
Can you please write a link so I can see that V-tech unit?
I think there are not space anywhere to add second Bosch 010 pump, that was my plan to do also. .
Maybe your original 010 Bosch is not working like it should, and temps will rise too much. My 010 was bad and I did replace it with turbo swap. I have also extra heat exchanger on bumper and connected to IC system jus after 010 Bosch and then to main IC. My intake temps are holding quite well down and no ignition timing pulls. These cars suffer heat sokes when that cooling liquid gets really hot.. like on really hot days +30c and driving slow.
I have now separated IC from main rad and under normal driving I have around 50C, racelogic runs go up to 65C (outside 30C)
But 100-200 run I have power cuts after some hard acceleration
How do get 63 AMG remapped to 700hp with stock cooling?
Only AMG S Model has the extra radiator in the wheel arch + bigger pump.




I have now separated IC from main rad and under normal driving I have around 50C, racelogic runs go up to 65C (outside 30C)
But 100-200 run I have power cuts after some hard acceleration
How do get 63 AMG remapped to 700hp with stock cooling?
Only AMG S Model has the extra radiator in the wheel arch + bigger pump.
Yes, only S-models have that extra HE and connected to IC system, but you can do it also. I have done it. My car is facelift so my bumper is bigger and helps the airflow to extra HE. Add an extra heat extra heat exchanger on bumper and connect it to IC cooling system, not on main rad system, buy new IC pump, use water wetter.
I already have CWA100 pump lying around
Waiting for tinyCWA controller, will run the pump autonomously
I also have the facelift bumper.
How is your experience with small radiator on the side? What are your intake temps?
I was thinking to put 2nd large radiator in front of aircon condenser, like gardevski did in his build.




I already have CWA100 pump lying around
Waiting for tinyCWA controller, will run the pump autonomously
I also have the facelift bumper.
How is your experience with small radiator on the side? What are your intake temps?
I was thinking to put 2nd large radiator in front of aircon condenser, like gardevski did in his build.
My extra original AMG HE on bumper did add about 0,5liter liquid on IC system. If u use Alpha it would add 33% more (based on their website.) My intake temps are 7c-10c over ambient when on cruising speed. I have a switch and I can force the IC pump to run all the time if I want so. On dyno last time there was terrible +38c heat and we did run three times. Highest intake temp reading was like +57c when hitting rev. limiter on fourth gear. Still no knock, or ignition timing or boost pulls by ECU. So my cooling will work like it should. I do not track this heavy car, so I will be fine with it for now.
I use OBDlink MX+.Yes that could be one solution to do like gardevski. Theres oil cooler on way but maybe you can manage to do that.
One way or another these M157 and M278 cars will suffer heat sokes on ++30c days when on slow driving and liquid temp will rise and really slow to cool down or sitting hood closed and after then driving and liquid get really warm.
Yeah, the CWA pump has PWM signal for different rpm.
I got the pump from an Audi Q7 for like 100 Euro or so )))
The tinyCWA should be a great thing if it works as advertised.
Unfortunately they will resume deliveries only in September.
7-10degrees over ambient is also not too great for cruising.




What comes to my intake temps always could do better
but my temps are not causing any power reducing problems and car runs fine so that enough for me for now.Can you please write a link so I can see that V-tech unit?
I think there are not space anywhere to add second Bosch 010 pump, that was my plan to do also. .
Maybe your original 010 Bosch is not working like it should, and temps will rise too much. My 010 was bad and I did replace it with turbo swap. I have also extra heat exchanger on bumper and connected to IC system jus after 010 Bosch and then to main IC. My intake temps are holding quite well down and no ignition timing pulls. These cars suffer heat sokes when that cooling liquid gets really hot.. like on really hot days +30c and driving slow.
my tuner has done additional 010 pumps on m157 and says he can do the same on m278, he said my cooling radiator is the problem because of it's design it can't cool down water good enough for high boost, i have put my custom 4.5L cooling radiator upfront just behind the bumper atm. Will post updated 100-200 run after around 25th august with new cooler and additional pump.




my tuner has done additional 010 pumps on m157 and says he can do the same on m278, he said my cooling radiator is the problem because of it's design it can't cool down water good enough for high boost, i have put my custom 4.5L cooling radiator upfront just behind the bumper atm. Will post updated 100-200 run after around 25th august with new cooler and additional pump.
I will have my final custom ECU tune session in mid. September. Lets see how much power the shooting brake can produce then. After that I can also Dragy 0-60mph, 100-200km/h and 1/4 mile again.
Have u think about the TCU tune? I think it would be must to your set up too.
I will send you a PM later.


