whipple guys

z-eater

stock with pulley
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st louis
I have just bought one.
I was just wondering how much horsepower u can get out of them, what combo and how much boost?

I m planing to spray 75 shot NX on top of that.


Thanks guys.
 

sbc.cobra

HUWHAT!!!
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do you have a built motor or at least new pistons? if you are planning on running high boost AND a shot of gas, better put some money aside for a new engine soon.

to answer your question, i'm not sure what kind of power you can get...it all depends on the tune and dyno. i'm north of 600 w/ abou 19#'s of boost right now (hp & tq numbers).

i'm runnin a stock upper and 6# lower...19psi. add a 3.25" upper and 6# lower and i'm at around 21psi, go to a 3.0" upper and 6# lower and your around 23psi. the way i under stand it is for every 1/4" DECREASE in the upper, you get about 2 more pounds of boost. the lower is self explanatory. a 4# lower (from the stock lower) will give you 4#'s of boost, or very close to it.

if you want to go all out, get a 2.75 upper and 6 or 8 lb lower and now your around 25lbs of boost. be careful of the belt slip though. good luck
 

nix5o

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Dynospeed tuned my whipple to 605hp uncorrected at 18psi, and 627hp uncorrected at 21psi all on 93 octane.
 
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z-eater

stock with pulley
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thanks guys, I m probably going for 23psi and 75 shot nx
engine is stock but when it goes out and I m sure it will I will fix it.

So I got a 4pound lower kit with it what size pulley I need for 23psi
 

Mr. Couper

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San Antonio, Tx
z-eater said:
thanks guys, I m probably going for 23psi and 75 shot nx
engine is stock but when it goes out and I m sure it will I will fix it.

So I got a 4pound lower kit with it what size pulley I need for 23psi

wow, and i was shooting for 21 psi with a rebuilt motor. Maybe i should rethink my plan :rockon:
 

FireRed04Vert

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Phoenix, AZ
z-eater said:
thanks guys, I m probably going for 23psi and 75 shot nx
engine is stock but when it goes out and I m sure it will I will fix it.

So I got a 4pound lower kit with it what size pulley I need for 23psi

WOW!!! It's probably gonna go BOOOOM....but what a ride until it does....
 

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