- Sep 30, 2004
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What kind of boost pressure can you run on a 4.6 GT with 91 octane pump gas? Will you be able to run the 14psi kit on the 91 octane? If so what kind of horsepower can you get?
RTRMustangGT said:What kind of boost pressure can you run on a 4.6 GT with 91 octane pump gas? Will you be able to run the 14psi kit on the 91 octane? If so what kind of horsepower can you get?
Ray@VSK said:Because you have to feed that air otherwise your motor will spark knock & blow up the motor, you have to retard timing to prevent detonation aswell.
o3redfire said:I would not run over 9 lbs of boost with stock bottom end, intercooling will help.
Ray@VSK said:Uhh Kenne Bell states to run nothing lower than 92.
Laser-01-gt said:Yes, Kenne Bell kits are designed to run on 91. Every additional 1psi need 1.5 octane. So if the 9# intercooled kit is designed for 91 then it would take 100 octane race fuel for a 14# kit. on a stock bottom end with the stock compression.[/QUOTE
93 octane 14psi 488rwhp and 502 rwtq
Saleen s281 said:...93 octane 14psi 488rwhp and 502 rwtq
I agree don't go over 8-9 psi. on a stocko3redfire said:I would not run over 9 lbs of boost with stock bottom end, intercooling will help.
Isn't that pushing the envelope? I run 10 psi full time with 93 octane. Just got the 11 psi pulley but will use it only at the track with 100 octane gas. I have a friend with a Vortech @ 14 psi on stock internals....my guess is that he is on borrowed time.Ibeyorsuperman said:I ran my GT with stock internals on 12psi on 91 octane.. the KB tune is pretty good
hotmustang331 said:Heck even 9PSI KB units are killing the stock low end...I would NOT recommend putting a KB on a 2V with stock lowend
hotmustang331 said:Heck even 9PSI KB units are killing the stock low end...I would NOT recommend putting a KB on a 2V with stock lowend....built is the only way to go with those IMO.