engine build questions
06-11-2010, 02:41 PM
#1
2nd Gear Member
Thread Starter
Join Date: Mar 2008
Location: il
Posts: 390
engine build questions
i have 07 gt auto with saleen supershaker and 12# boost. i am getting the aluminator with the 9.5 comp. i know alot of people say get the 8.7 comp for supercharger. saleen has one pulley smaller then the one i have and with a 10% overdrive crank pulley i will only see 15 to 16# boost. i will be getting a mild cam and a larger heat exchanger. i think i will see around 525rwhp. is anyone running a higher comp. a supercharger and 93 octane? will i be ok running this set up on 93? anyone running over 500rwhp and 39# injectors?
06-11-2010, 05:47 PM
#2
5th Gear Member
Join Date: Jul 2008
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Posts: 2,057
I'm running a 9.5:1 motor with a Whipple and 92 octane. My last dyno pull showed about 13.6 psi and 517rwhp. Since then I've added a 10% overdrive balancer and larger sc pulley. Haven't had it on the dyno but did see 15 psi during a brief wot 3rd gear pull.
My car maxed out 488 with 38lb. injectors and the stock maf. I'd think you might want to just upgrade to 60's now instead of later and save tuning costs.
My car maxed out 488 with 38lb. injectors and the stock maf. I'd think you might want to just upgrade to 60's now instead of later and save tuning costs.
08-21-2010, 09:07 AM
#8
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Join Date: Jul 2008
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Posts: 2,057
Here's the dyno sheet from when mine maxed out. You can see the af line dip rich and then start lean, that comes from the injectors running full duty cycle. My tuner also said he didn't feel comfortable compressing the maf anymore at that point and that I needed bigger injectors and a different maf to push more boost.
Same motor with GT500 injectors and a pmas hpx maf, more boost, and a frpp tb.
Same motor with GT500 injectors and a pmas hpx maf, more boost, and a frpp tb.
