63c

Thank you sir. I'll post up a video and ge latest Timeslip from yesterday in a new thread.

And just to answer your questions quickly. I don have any upgraded fuel pump/system rather than the larger fuel injectors which comes standard with stage 3 cars. I'm also running the 60mm pulley with 18 psi boost

Merc63

Is your engine built with the forged internals or stock? I have that 60mm pulley and some new spark plugs but too scared to try it with the stock engine.

What are you running for fuel and are you icing the tank on each run?

jrcart

Congrats! The 1.2 60ft had me jaw dropped, I wanted to believe it but not even my 1400hp CLK can put down a 1.2. Glad you got it figured out and still posted a great ET! You got into the 9's with less work done to your car than I had when I broke into the 9's so I can truly appreciate what you have done. A few guys in this thread like Blackbenzz, AMS and couple other know what they are talking about when it comes to drag racing so don't take their comments as hating, they know their stuff.

Again, Congrats!!!



P.S. Be prepared, as you get faster the real doubters and nay sayers will come out of the wood work, suprised nobody accused you of spraying yet lol, comes with the territory I'm affraid.

jrcart

Do you have P31 forged internals? If so you can run the small pulley, I run it on my stock P31 internal C63 BS, it makes 790whp. I ran it for two days of hard thrashing at the road course at Daytona without issue and at several airsstrip events. It is going to make some heat so I don't know if youre going to run into limp mode issue as a stock BS has a lot more cooling mods than a standard C63, plus I have additional cooling mods in addition to my stock BS mods.

Merc63

I don't have p31

I run in a cool climate though up in Canada. And would ice it. I would only try it at the strip for a few runs.

mthis

Good to know p31s can take a nice beating. since u did up the clk and it didnt have p31 would u know where the limits to non p31 motor can handle. i remember a while back dads did 700rw with Nitrous so im assuming its somewhere between 700-800?

jrcart

The non P31 motors are very stout as well. I was up to well over 800whp with my CLK before it went boom.

Sincity

Boom? When was this? I don't lurk as much nowadays.

jrcart

Its gone boom twice now, every time we rebuild it with a little more boost and a couple hundred more hp....I am up to about 1400hp now, sleeved block and some very expensive one-off internals. The first time we knew it was coming we had a full build planned and wanted to find the absolute limit. The second was last summer and it was no fault of anything but a bad cam sensor. It's rebuilt bigger and stronger than ever and ready for another season of racing and some 8 second passes.

JRHolt

1400HP? Wow!

JonathonK

too good not to share this on the front page!
https://mbworld.org/articles/weistec...-9-78-seconds/