YYCStage3

Just a little feedback from a long road trip with the car -

My biggest concern when deciding to go with the stage 3 upgrade to my C63 was drive-ability and reliability. I didn't want a bunch of headaches that could come with all the new power.

Over the last week I drove though 2 provinces, and 3 states, totaling over 3100km. Everything from high elevation mountain passes, bumper to bumper traffic in 35deg weather, to sea level twisties. The car performed flawlessly. I could not say one negative things about how it performed, it basically felt like a stock vehicle (with the exception of the gobs of passing power on tap). It truly is a 750hp day driver, good job Weistec for creating a system of this quality. Even with lots of 80-90mph cruising and passing it still averaged 9L/100km.

Also, at sea level this thing is an absolute beast!!

SatelliteMan

Good to hear! Did you upgrade the internals, or are you running stock?

YYCStage3

All stock internals - but it's a P31 car, so it's fairly stout.

Texas E63

Any upgrade on the tranny ? I'm debating this and that's my only real concern.....

E

YYCStage3

Yes, I did go with the Weistec Transmission upgrade. Some feel the MCT can take the abuse, but I didn't want to chance it.

Again, zero complaints. Excellent drivability in C, with very fast and firm shifts in S+ and M mode.

roadtalontsi

MB rates the mct at 1000nm = 737tq. Likely crank not wheels. pfl cars with coverter are 700nm=515tq hence why my trans only takes it for a good 20-30kmi before surrendering. Also driver / use dependent ofcourse.

fusion2007

that was a good decision, I blew my first transmission on my cls after adding bigger turbos. I had to buy a new tranmission and than do the Weistec transmission upgrade total 20k mistake