Need help with cam choice.......Thanks
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From: Bayarea, California
Need help with cam choice.......Thanks Alright,
I'm ready to buy a cam and I'm not sure what exactly to get. I do want it to sound slightly lumpy, I want to go as big as possible being able to put all the stock bolt ons and tuned to be able to pass smog when it's time. What cam would you guys go with now and with future mods, keeping in mind I want it to be the best for future mods. even if I loose some of the benifits right now.
The cam I'm thinking is a comp cam 224/230 114 580 lift, I know the LSA should be 115 min. but I want the sound, is the lift to big???
The set up below are discribed broadly, but you guys get the idea. Any opinions would be greatly appreciated.
Set up know:
Stock short block
LS6 manifold
1.85 rockers
LT's/ORY
Procharger @ 7psi
All the other aftermarket bolt ons, MAF, TB etc. etc.
Set up in the near future:
Forged short block, and all the normal internal upgrades.
Ported 6.0 heads to lower comp.
????? Rockers
LT's/ORY
Procharger @ 10psi
Meth. injection
Bolt ons, same as above
I'm ready to buy a cam and I'm not sure what exactly to get. I do want it to sound slightly lumpy, I want to go as big as possible being able to put all the stock bolt ons and tuned to be able to pass smog when it's time. What cam would you guys go with now and with future mods, keeping in mind I want it to be the best for future mods. even if I loose some of the benifits right now.
The cam I'm thinking is a comp cam 224/230 114 580 lift, I know the LSA should be 115 min. but I want the sound, is the lift to big???
The set up below are discribed broadly, but you guys get the idea. Any opinions would be greatly appreciated.
Set up know:
Stock short block
LS6 manifold
1.85 rockers
LT's/ORY
Procharger @ 7psi
All the other aftermarket bolt ons, MAF, TB etc. etc.
Set up in the near future:
Forged short block, and all the normal internal upgrades.
Ported 6.0 heads to lower comp.
????? Rockers
LT's/ORY
Procharger @ 10psi
Meth. injection
Bolt ons, same as above
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From: Norn Iron
I think if you are using a cam with 0.580 lift, then using 1.85 rockers, you would seriously need check piston to valve clearance, and make sure your valvesprings etc are up to the job.
Thats in and around 0.630 lift you're talking about there, which is a LOT.
Thats in and around 0.630 lift you're talking about there, which is a LOT.
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From: Cincinnati, Ohio
If it has a lope at idle it probably won't pass an emissions test that test for hyrocarbons. They are a byproduct of incomplete combustion (lumpy idle). I have a 214-224 (smooth idle) and just got under the wire in Ohio.
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Originally Posted by stevieturbo
I think if you are using a cam with 0.580 lift, then using 1.85 rockers, you would seriously need check piston to valve clearance, and make sure your valvesprings etc are up to the job.
Thats in and around 0.630 lift you're talking about there, which is a LOT.
Thats in and around 0.630 lift you're talking about there, which is a LOT.
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From: Bayarea, California
Originally Posted by Gary98Z
I asked Andy (owner of A&A Corvette) and he was able to get the 224/228 to pass in CA.
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We installed a Comp camshaft in the STS Camaro SS that we just finished. We had it specially ground. The spec's are 232/240 at .050 .595/.608 lift with a 115 lope separation. This cam works very well for us in forced induction applications, and yet it will still give the engine a lopey idle. This is the same camshaft profile we used in the twin turbo Corvette that we built earlier this year, and that customer passed emissions in Tenn.
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From: Cincinnati, Ohio
Originally Posted by 1RADWS6
......Still no one has been able to answer....I might just call Andy, I bought my clutch set up from him.
that it will pass emissions. If you want to be sure you have no problem you would have to choose a mild cam. Lift doesn't really play into the emissions much. I'm an E-check cert. tech in Ohio and have to repair cars to pass. As said before cars that have a lopey idle (large cam) are a crap shoot because of the high hydrocarbons they produce.
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Originally Posted by Exotic Performance Plus
We installed a Comp camshaft in the STS Camaro SS that we just finished. We had it specially ground. The spec's are 232/240 at .050 .595/.608 lift with a 115 lope separation. This cam works very well for us in forced induction applications, and yet it will still give the engine a lopey idle. This is the same camshaft profile we used in the twin turbo Corvette that we built earlier this year, and that customer passed emissions in Tenn.
