Thread: 2010 Yenko 427 Camaro
Threaded View
-
11-10-2009 08:07 PM #1
2010 Yenko 427 Camaro
Today we were working on the serial number 1 2010 Yenko 427 Camaro developing a tune resolving some driveability issues with the 427 engine. The car was equipped with a 427 engine, long tube headers, carbon fiber cold air kit, and auto matic trans--engine put down 425 rwhp locked in 4th gear after initial pulls in the mid 300 area. After a few pulls, a trip to BP for some fresh 93 octane, got it over 400 and then with some tweaking, 425hp.
Out on the street driving, the trans has some shift timing issues--going to take some pressure and timing adjustments to iron out these issues----this is the only automatic one so far and maybe the last, as 6 speed manuals don't have these issues or total amounts of driveline losses.
I'll keep everybody advised and post some pics when I can.
Jerry
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance