I think my cam is boost friendly
12-15-2004, 02:18 PM
#11
Ok....I just went to lunch and got on her pretty good one time and it hit 10psi 
I'm sure it would hit 11-12, maybe more??? If I had stayed in it, but i'm still trying to take it easy on the converter. It never saw that much boost with the stock cam. Only other change is the maching shop said my CR was 9.52:1 instead of the stock 9.4:1. Would that little bit more CR help it make that much more boost?? It ran around 8-9 psi with the stock engine.
I'm sure it would hit 11-12, maybe more??? If I had stayed in it, but i'm still trying to take it easy on the converter. It never saw that much boost with the stock cam. Only other change is the maching shop said my CR was 9.52:1 instead of the stock 9.4:1. Would that little bit more CR help it make that much more boost?? It ran around 8-9 psi with the stock engine.
12-15-2004, 04:47 PM
#13
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Originally Posted by ranwalk
Ok....I just went to lunch and got on her pretty good one time and it hit 10psi I'm sure it would hit 11-12, maybe more??? If I had stayed in it, but i'm still trying to take it easy on the converter. It never saw that much boost with the stock cam. Only other change is the maching shop said my CR was 9.52:1 instead of the stock 9.4:1. Would that little bit more CR help it make that much more boost?? It ran around 8-9 psi with the stock engine.
I'm sure it would hit 11-12, maybe more??? If I had stayed in it, but i'm still trying to take it easy on the converter. It never saw that much boost with the stock cam. Only other change is the maching shop said my CR was 9.52:1 instead of the stock 9.4:1. Would that little bit more CR help it make that much more boost?? It ran around 8-9 psi with the stock engine.
12-15-2004, 06:32 PM
#14
Originally Posted by rosscob
Did you change your throttle body? I was having trouble getting boost out of my whipple. The problem ended up being the vacuum actuated butterfly valve. Under WOT and full boost a vacuum was created between the throttle body and the whipple opening the recurculation vavle and bleeding off boost. I still can't make more than 5psi with a 3-5/8 pulley.
12-15-2004, 06:57 PM
#16
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Originally Posted by SportSide 5.3
Anyone wanna tackle how the camshaft choice affects boost?
If someone really wants to know use the site's search function. 
12psi on a whipple
.....are you running an IC or alky or something. What are you IAT's? Any KR? Sounds like you might have a winning combo there? How fast are you spinning that thing (what rpm)?
12-15-2004, 09:31 PM
#18
Originally Posted by SportSide 5.3
Anyone wanna tackle how the camshaft choice affects boost?
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