Need Boost Advice with 91 Octane, 8.5:1 & AFR225 Heads
02-10-2008, 08:47 PM
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Need Boost Advice with 91 Octane, 8.5:1 & AFR225 Heads
Folks, a long project (about 7 months long) finally came to an end. NOw I have a 3.3L whipple running on a 416cuin block.
The pistons in the car are 8.5:1
Heads are AFR225 which I think they are 72cc ( a bit larger than stock)
91 Octane gas around here in Cali
We are running 12psi. To be honest I think as powderful as it is, its not much more powerful than when I had 10:1 compression with 6psi. I am wondering if I am runnign too low of a boost?
Any advice would be appreciated. The Cams, injectors etc are all pretty good, though the tunning of the motor is still problematic.
Many thanks, Bismarck !
The pistons in the car are 8.5:1
Heads are AFR225 which I think they are 72cc ( a bit larger than stock)
91 Octane gas around here in Cali
We are running 12psi. To be honest I think as powderful as it is, its not much more powerful than when I had 10:1 compression with 6psi. I am wondering if I am runnign too low of a boost?
Any advice would be appreciated. The Cams, injectors etc are all pretty good, though the tunning of the motor is still problematic.
Many thanks, Bismarck !
02-10-2008, 09:28 PM
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Setup looks good! With proper tuning you could run more boost IMO.
I'm running a 8.4:1 408 w/single turbo @ 18psi on pump gas with meth injection. I would recommend the meth, whether you go higher in boost or stay where you're at. Either way, a good tune is gonna be the life of a boosted motor though...Best of Luck!
I'm running a 8.4:1 408 w/single turbo @ 18psi on pump gas with meth injection. I would recommend the meth, whether you go higher in boost or stay where you're at. Either way, a good tune is gonna be the life of a boosted motor though...Best of Luck!
02-10-2008, 09:36 PM
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I think You are right about the tunning. Having a ton of problems with HP-Tuners.
As for the setup, maybe we have to wait until the motor and charger are broken in. It just feels like the sharger is loud and the car is not smooth like it used to be with the Radix. I have the Corsa exhaust on it which I told them to take it off, maybe that will quiet it down a bit...
My wallet is too empty to change anything now, will have to drive it for a while, did the whole 2L80 conversion, etic. I have to look into Meth injection. Any link to a good Meth injection setup?
Thanks Guys...
As for the setup, maybe we have to wait until the motor and charger are broken in. It just feels like the sharger is loud and the car is not smooth like it used to be with the Radix. I have the Corsa exhaust on it which I told them to take it off, maybe that will quiet it down a bit...
My wallet is too empty to change anything now, will have to drive it for a while, did the whole 2L80 conversion, etic. I have to look into Meth injection. Any link to a good Meth injection setup?
Thanks Guys...