C63 Weistec tuned P31 Vs. P31 C63 With MidPipe + Xpipe

[SLS AMG]

Great video showing that there is in fact an improvement for the P31 C63's with a tune from Weistec. Something some other tuners are not able to do!

Here is a Weistec Tuned P31 C63 (completely Stock with only an ECU tune) running against a stock P31 C63 having a midpipe + Xpipe(which add an additional 10-15whp).

[LZH]

Great video showing that there is in fact an improvement for the P31 C63's with a tune from Weistec. Something some other tuners are not able to do!

Here is a Weistec Tuned P31 C63 (completely Stock with only an ECU tune) running against a stock P31 C63 having a midpipe + Xpipe(which add an additional 10-15whp).

What exactly are they able to do that no other tuner can??

[SLS AMG]

What exactly are they able to do that no other tuner can??

They actually offer gains on an already factory-tuned C63

do a little research, some P31 customers paid for certain tunes and their gains were minimal (as much as 5whp) and some did not gain anything at all.

[LZH]

They actually offer gains on an already factory-tuned C63

do a little research, some P31 customers paid for certain tunes and their gains were minimal (as much as 5whp) and some did not gain anything at all.

I'm perfectly aware of that. But they are not the only ones who pick up power in the P31 cars. Eurocharged for example have also been able to tune the P31 motor and get more hp. And if someone wanted to run a race fuel only they would be able to pick up even more. It's not rocket science.

[ezec63]

They actually offer gains on an already factory-tuned C63

do a little research, some P31 customers paid for certain tunes and their gains were minimal (as much as 5whp) and some did not gain anything at all.

Judging by the pano roof of the camera car that's a c63 coupe with the new MCT trans and the other car is a pre 2012 sedan with the 7G torque converter trans .. The new cars with the MCT have shown to be faster on rolling runways races so take that into account ! I'm sure your bro with his sl63 knows how good a trans the MCT is at full throttle

[SLS AMG]

But they are not the only ones who pick up power in the P31 cars

I never said they were the only ones!

[SLS AMG]

Judging by the pano roof of the camera car that's a c63 coupe with the new MCT trans and the other car is a pre 2012 sedan with the 7G torque converter trans .. The new cars with the MCT have shown to be faster on rolling runways races so take that into account ! I'm sure your bro with his sl63 knows how good a trans the MCT is at full throttle

Bro, they are both runnin MCT trannys

[ezec63]

Bro, they are both runnin MCT trannys

The MCT only became available for the c63 after the facelift aka 2012+ models you can clearly tell in the video the black car is a pre facelift model look at the headlights ! And a dead giveaway is it has fog lights instead of a LED strip like the new models. So being non facelift it has the 7G torque converter trans not the MCT

[ezec63]

The MCT will have the advantage on rolling starts with the less drivetrain loss and much quicker shifts but the 7G might be better for dig races/ standing starts

[Sticky]

I'm perfectly aware of that. But they are not the only ones who pick up power in the P31 cars. Eurocharged for example have also been able to tune the P31 motor and get more hp. And if someone wanted to run a race fuel only they would be able to pick up even more. It's not rocket science.

The P31 package is difficult to get additional power out of and although there are tuners who can, many can not. It's impressive to see P31 gains due to how aggressive the AMG tune is from the factory.

[Sticky]

The P31 package offered as an option for the W204 C63 AMG is an excellent factory tuning package. AMG really outdid themselves and essentially squeezed out what aftermarket tuners are able to gain on the C63 AMG themselves. The package is more than just a tune however and for those unfamiliar it also includes stronger forged pistons, rods, and the crankshaft that see duty in the SLS AMG M159 V8.

Mercedes-Benz claims power increases from 451 horsepower to 481 horsepower but in practice it seems to be even stronger than the MB claims. Just look at this race between a stock P31 C63 AMG versus a tuned standard C63 AMG with filters and a cat delete. Mercedes-Benz offers very aggressive factory software for the P31 cars.

Due to how aggressive the stock software is many tuners struggle with improving upon the tune. The P31 tune is so good some (now somewhat defunct) tuners would flash the stock Mercedes P31 software onto C63's. What shows skill that separates tuners is things like getting extra power on P31 cars.

Check out the race below between two P31 equipped C63 AMG's one of which is tuned by Weistec. The tuned car takes the P31 car significantly up top showing a horsepower difference. Keep in mind that the tuned car which pulls has the MCT transmission while the other P31 car (due to the option coming on the market before the MCT was featured in the C63) has the 7G transmission. It is definitely a factor but regardless horsepower wins this race.

[Sticky]

The MCT only became available for the c63 after the facelift aka 2012+ models you can clearly tell in the video the black car is a pre facelift model look at the headlights ! And a dead giveaway is it has fog lights instead of a LED strip like the new models. So being non facelift it has the 7G torque converter trans not the MCT

Seriously, great posts man I wouldn't have caught that.

[Sticky]

The MCT will have the advantage on rolling starts with the less drivetrain loss and much quicker shifts but the 7G might be better for dig races/ standing starts

I also want to add that in a top end race like this you aren't shifting as often at higher speeds. Since they are spending more time in gear it's pretty much about horsepower.

[Jacob502]

The P31 package is difficult to get additional power out of and although there are tuners who can, many can not. It's impressive to see P31 gains due to how aggressive the AMG tune is from the factory.

+1. You are very correct

you sure do know alot for someone who doesnt own an M156

Weistec's naturally asspirated tune is very powerful. I have a friend with a 2012 C63 coupe running with supersprint headers and catless downpipes. It previoulsy had a moderate tune.I tuned his ECU with Weistec and the car is pulling really good, it dynoed 491whp.
It was also beating the 2010 C63 running the same headers and an OE tune. it did 60-130 in 8.2 on a hot 37C day.

[Sticky]

you sure do know alot for someone who doesnt own an M156

I doubt anyone reads more automotive forum posts than I do.

[Sticky]

Weistec's naturally asspirated tune is very powerful.

I do not doubt it I'm trying to get a graph for their P31 tune. @Weistec