Merc63

I have 65,000kmon this car. The tranny lasted 5 days.

I'd say, you need the tranny built. On a newer car it may last longer. But it just drives way better with the tranny to handle the power.

BAD430BENZ

i would also recommend the built tranny

jrcart

Are you running the 67mm standard pulley? If so you should be putting down 660-670whp, mine makes 667 with the same set-up.

Nice run man, enjoy!

Merc63

I'm running whatever pulley comes with the stage 3 kit.

SLS Qatar

ummm....I dont know what is that supposed to mean?

Mustang dynos can be cheated easily! you just change the load and a couple of factors and numbers will become magic

I dont know what you think or have been told, but there is absolutely no way on earth that Mustang is making 670rwhp!

11.59 @ 123mph does not correspond to 670rwhp

and btw, shouldnt your car be trapping 130mph+?

I know you said you "dont care", but if this was my car having the stage 3 setup, and I find myself trapping less than 130mph, I would look for a dynojet and see what its really putting down and try to look for problems if there are any!

skaarlaj

As far as the car putting down that number I would say that is a dismal # for that car with that set-up on the Cobra, but you're right the et, and especially trap speed say that it's incorrect, Maybe that's why the Mercedes did so well, as I really though I was going to see a murdered C63 before actually viewing??

mr747

He trapped 128.84 mph on his 10.9 pass

I'm sure on a fast track he will do 130mph

See first page

Merc63

Raced the cobra on the street and we are both very close. He ran 11.0 at 128 the week before. He wasnt rubbing good that night.

track times are like dynos, everywhere is different. To hit 10s at this track at that mph is unreal for me. Tuned raced gas. 200lbs less and hwaders I was doibg 11.8 at 118. Im almost a second faster and 10 mph more.

Merc63

I could take a trip to mission raceway which is at sea level and probably gain another few tenths and mph.