JBP Stage 1 cams + GM S/C = ? - Boost Forum

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JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 3:26 PM
Anyone got any thoughts on this setup? I can get a siccccckkkk deal on these. I know they have quite a bit of duration, espeically on the exhaust side so I dunno how well they would worth with boost. Its a little more then the secret cams iirc

its 208 @ 375, while the secret is 200 @ 360.

Any input is appreciated




Re: JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 3:36 PM
I thought some one said they make them for supercharged cars... or they can if you just tell them they are for the 2.4L with the GM s/c



Re: JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 3:37 PM
Well I wasn't going to be pickin them up through jbp directly.

I know someone that has the stage1's right now on his n/a 2.4 and is trading his car in...



Re: JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 9:38 PM
go for it.

i got the secert cams in B4 i was s/c'd and they are the shiznit.

let that car breathe my boosted friend.






Re: JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 9:43 PM
I thought usually stage 1 cams on most cars work well with boost....



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Re: JBP Stage 1 cams + GM S/C = ?
Thursday, June 02, 2005 11:26 PM
with boost you want high lift, short duration. those are longer duration cam profiles, hence the term N/A cams for naturally aspirated setups. correct me if i am wrong, but there are FI cams for a reason....




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Re: JBP Stage 1 cams + GM S/C = ?
Friday, June 03, 2005 3:37 PM
I agree with you hence why I was asking I know these have a bit of duration to them, but its not TERRIBLY far off from the secret cam specs.... which most people say works well with boost



Re: JBP Stage 1 cams + GM S/C = ?
Friday, June 03, 2005 4:41 PM
Spotabee Racing wrote:with boost you want high lift, short duration. those are longer duration cam profiles, hence the term N/A cams for naturally aspirated setups. correct me if i am wrong, but there are FI cams for a reason....


You're wrong. You're thinking more along the lines of turbo cams. Turbochargers create a great deal of back pressure in the exhaust manifold which is exactly the reason longer duration can have a negative effect on a turbocharged motor. Too much exhaust back pressure plus too much cam overlap = exhaust gas that wants to flow back out of the intake rather than the tail pipe.

With a supercharged motor you don't have anywhere near the amount of back pressure in the exhaust manifold. I'd say a 208 lift / 375 duration cam will work fine on even a turbocharged motor. I'm using much hotter cams in my car...


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Re: JBP Stage 1 cams + GM S/C = ?
Sunday, June 05, 2005 5:26 PM
I hope its 375 lift 208 duration....... kinda hard to be open longer then all the time (360)

Skilz is right..........




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Re: JBP Stage 1 cams + GM S/C = ?
Sunday, June 05, 2005 7:41 PM
Stage 1 2.4L LD9

Duration @ .050*, Valve Lift INTAKE 200*, 375 EXHAUST 208*, 375



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