which cam
#1
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what cam should i run. i want good power and that hot rod idle but it needs to be supercharger friendly for when i put a procharger on my gto im running 1.8 roller rockers
#3
TECH Senior Member
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Overlap is always more power.
#4
LS1TECH & Trucks Sponsor
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I'd be happy to grind a cam specific for your application. Give me a call or send me a PM giving me a little more information on your car and your goals and I can help make sure you get exactly what you need. We can definitely make sure you've got the sound you want in a great blower cam barring conflicting desires (I.E if you have an auto and want to keep the stock converter).
-Jesse
-Jesse
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800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice
#5
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I guess I didn't really think of it that way....I always just tjought of it as losing boost through too much overlap.
#6
TECH Senior Member
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At a certain level depending on the rest of your motor setup, overlap starts to bleed too much intake and usually we compensate by adding more boost.
#7
TECH Fanatic
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I know you have tried to set things straight about this over and over, glad to see that you haven't given up. This generalized misconception needs to die.
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#8
TECH Senior Member
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I've built/used a couple of supercharged setup for street, every time, results are the same just adding a bit of overlap will see an increase in power.
#9
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That is the trick. When is too much? From my experience from 7 to 10 psi around 6* positive overlap is very manageable. Valve events of cam also can help by making cam less exhaust biased from TDC.
At a certain level depending on the rest of your motor setup, overlap starts to bleed too much intake and usually we compensate by adding more boost.
At a certain level depending on the rest of your motor setup, overlap starts to bleed too much intake and usually we compensate by adding more boost.
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
Also, another question....when people say "shoot for 9:1 compression for boost" what kind of dcr are they going for, or I guess, if you have a high 12:1 or so scr, but a huge cam which drops the dcr down to 8.2:1, can this setup tske boost just like the lower static compression smaller csm motor?