I ordered an 8" crank pulley from ASP, How much boost will I see with that pulley and a stock blower pulley ?
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I ordered an 8" crank pulley from ASP, How much boost will I see with that pulley and a stock blower pulley ?
Depending on the flow of those heads I'm gonna wager 13 to 14 PSI.:)
I'm sure a few will come in here and say 15 but I don't know.
Put her on a dynojet and lets find out.:)
Is it OK to run boost as high as 15lbs on a stock bottom-end like mine ?
It all depends on power output. You are going to dyno right? IF not you are driving a bomb.:eek:
No dyno and I would suspect there will be some drivability problems as well as rich lean and detonation.
Anyhooters if you get all that squared away and you are making 425 or more and you use that power a lot then I would be nervous from everything I have ever seen or read about stock blocks. Then again I am no expert frank and these are strictly my opinions.:)
Steve worries too much. Splitting the block is "half" the fun! LOL...
I'm only seeing 8-10lbs with mine, I have the stock blower intake tubing and filter (Disapointing). Oh and I have edelbrock rpm (1.90/1.60), typhoon intake, stock cam, stock bottom end and all the bolt on's.
Sinner that little K&N that comes in the kit flows more air than you think.:)
Sorry, when I put "disapointing" at the end I wasn't refering to the filter, I was refering to only seeing 8-10lbs of boost.Quote:
Originally posted by 468LC
Sinner that little K&N that comes in the kit flows more air than you think.:)
If your making the power you think it should than don't worry about the boost. That is a pretty good head you're flowing air through.
With my set-up: 30lb injectors and the stock FMU, What should I set the fuel pressure at for a starting point ? OR Should I raise the pressure and do away with the FMU ?:confused: :confused:
w/ 30#'ers and with a stock fmu calibrated for 30# injectors (6:1 disc), I ran 42 psi of fuel pressure (vac off) just for the 8" crank pulley setup. I added nitrous on top of that (80 shot) and only increased the fuel pressure by 2 psi and it screamed like a raped ape (ran great).
You can do it with the FMU trust me...
Frank you are not talking about using a stock paxton 12:1 FMU are you? That would be bad.
yes the 12 to 1 fmu. whats wrong with using that one ?
I suspect the car will run so rich it either will not run or it will actually wash the oil off the rings which can damage both bearings in the motor and score the cyl walls.
Frank if you do the math with 38 psi of base FP and then put a 12:1 on there you will be looking at 182 PSI of fuel pressure at WOT with 12 PSI of boost. It just ain't gonna happen.
ever heard of "gas washing" the motor? Put the FMU on and you will for sure.