Just bought a blower....

Paluka21 · 12-23-2001, 02:52 PM

Honestly I would think you could run 14#'s of boost on a stock bottom end, with the exception of a few things. First you have in your signature, stock, so does this mean stock heads and stock cam etc? what kind of supercharger did you buy, if you bought one with an intercooler or aftercooler then you should be able to run this kind of boost alot more safely.
If your looking to push 14#'s of boost on the stock motor heres what I would do. First your gonna have to think about what kind of power numbers,or estimate you'll be making. I ASSUME your car is stock cause thats what you have written down, so with 14psi with a non intercooled application you might be making around 325-340rwhp would be my guess, assuming your making around 190rwhp as is. ( 93Gt 215fwhp )
For this power level I would say upgrade the injectors to prolly 36's with an FMU, prolly 6:1 should be fine with an adjustable fuel pressure regulator that is 1:1 boost sensitive, like the kirban or aeromotive units are. This will keep you rich enough that things will stay safe. Your going to need a good ignition system, as in the MSD 6al and MSD 6BTM. Your gonna need to pull some timing out of the car under boost so the btm should help w/ the detonation. I honestly wouldn't take my timing above 9 degrees base since you have stock iron heads and with iron heads you cannot run as much advance on timing.
I would also looking into the 255lph intake fuel pump, along with installing the inline boost pump supplied by the supercharger company.
I'd go one range colder on the plugs and gap them kinda low, around .32-.34 to help keep the spark from being blown out by the fuel, since you'll be running rich.
and lastly throw it on a dyno to have it tuned and square away the a/f ratio. Tuning will be the most important part of the car to keep it from blown head gaskets. I would say a head gasket would go before a piston, their kind of like a fuse that goes before something major does.
now if you had heads, cam etc, then you'd really be taxing the stock block, and you'd prolly need a good fuel system and run some type of race gas mixture.
good luck
Dan
95 rio red cobra #2021

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12-23-2001, 02:52 PM	#1
Paluka21 Registered Member Join Date: Oct 2000 Location: Maryland Posts: 71	Honestly I would think you could run 14#'s of boost on a stock bottom end, with the exception of a few things. First you have in your signature, stock, so does this mean stock heads and stock cam etc? what kind of supercharger did you buy, if you bought one with an intercooler or aftercooler then you should be able to run this kind of boost alot more safely. If your looking to push 14#'s of boost on the stock motor heres what I would do. First your gonna have to think about what kind of power numbers,or estimate you'll be making. I ASSUME your car is stock cause thats what you have written down, so with 14psi with a non intercooled application you might be making around 325-340rwhp would be my guess, assuming your making around 190rwhp as is. ( 93Gt 215fwhp ) For this power level I would say upgrade the injectors to prolly 36's with an FMU, prolly 6:1 should be fine with an adjustable fuel pressure regulator that is 1:1 boost sensitive, like the kirban or aeromotive units are. This will keep you rich enough that things will stay safe. Your going to need a good ignition system, as in the MSD 6al and MSD 6BTM. Your gonna need to pull some timing out of the car under boost so the btm should help w/ the detonation. I honestly wouldn't take my timing above 9 degrees base since you have stock iron heads and with iron heads you cannot run as much advance on timing. I would also looking into the 255lph intake fuel pump, along with installing the inline boost pump supplied by the supercharger company. I'd go one range colder on the plugs and gap them kinda low, around .32-.34 to help keep the spark from being blown out by the fuel, since you'll be running rich. and lastly throw it on a dyno to have it tuned and square away the a/f ratio. Tuning will be the most important part of the car to keep it from blown head gaskets. I would say a head gasket would go before a piston, their kind of like a fuse that goes before something major does. now if you had heads, cam etc, then you'd really be taxing the stock block, and you'd prolly need a good fuel system and run some type of race gas mixture. good luck Dan 95 rio red cobra #2021