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Sorry but another cam question

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Old Apr 24, 2013 | 03:28 PM
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Default Sorry but another cam question

I've order from gm performance parts a lsx454 I've got a set of jenvey 60mm itb intake iam going to run 2inch headers with a 3 inch exhaust unless any of you guys advise me different

What cam would the experts be running ?

The cam the engine comes with is 235/235

So come on cam guys who wants the honours and my money
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Old Apr 25, 2013 | 02:16 PM
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Come on fellers what have people got in mind ?
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Old Apr 25, 2013 | 03:32 PM
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You sure it's not a 236/246 cam, that's what I see that engine coming with.
That's a very conservative cam for a 454, which will be fine for good street manors. I'd take the duration up at least 10* on the intake side and 15*-20*, if your current cam is a 235/235. Now if it's 236/246 then at least 10* on the intake side and 10* on the exhaust side. I'd still call up some of the sponsors and see what they recommend for your needs/wants.
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Old Apr 25, 2013 | 03:58 PM
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Originally Posted by hsvgtsr
I've order from gm performance parts a lsx454 I've got a set of jenvey 60mm itb intake iam going to run 2inch headers with a 3 inch exhaust unless any of you guys advise me different

What cam would the experts be running ?

The cam the engine comes with is 235/235

So come on cam guys who wants the honours and my money
I'm sure there will be plenty of guys who want your money on that one! The individual throttle bodies change so much that you really need to find someone who has done them before. I would take notes from other ITB setups. The only ITB setup I've done has been a BBC 502. Know that reversion is still there but cylinder sharing so overlap doesn't affect a ITB setup like it would in a shared plenum. The cam will act and sound much smaller than it really is.
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Old Apr 26, 2013 | 01:22 AM
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I would consult with Pat G. It will be well worth the $25.00.

There are not many people who run ITBs. I know Pat owns one--my previous Harrop. The fact that he is into ITBs makes me value his input even more. He is very professional as well.
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Old Apr 27, 2013 | 03:32 PM
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Originally Posted by 99Bluz28
You sure it's not a 236/246 cam, that's what I see that engine coming with.
That's a very conservative cam for a 454, which will be fine for good street manors. I'd take the duration up at least 10* on the intake side and 15*-20*, if your current cam is a 235/235. Now if it's 236/246 then at least 10* on the intake side and 10* on the exhaust side. I'd still call up some of the sponsors and see what they recommend for your needs/wants.
My bad sorry the cam that comes with it is 236/246

So something like a 246/256 and a tad more lift
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Old Apr 27, 2013 | 05:16 PM
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Yeah at least, it'll depend on how driveable or radical you want it. Taking it up another 10-15* shouldn't be unreasonable either.
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