By now most of us know about the secret cam swap. I am looking to do custom cams for my car. I have a cai, 62mm tb, the gm charger, and full exaust. I will have a ported and polished head w/ 1mm oversied valves, full internals, msd, and I have been looking into swapping a m62 over. The secret cams profile is: 200 degrees @ .050" with .375" lift for the intake and 200 degrees @ .050" with .360" lift for the exhaust. If I stay with the GM charger I will max out the performance with it which boost wise would be around 8psi and if I switch over to the m62 I am guessing around 14psi??? What lift and duration should I look at to get more out of her?
JBP Stage 2 cams:
Duration @ .050*, Valve Lift INTAKE 260*, 377 EXHAUST 268*, 375
Will these cams help or hinder my application?
They've got about the same amount of lift with longer duration. I would probably go with something that has a little higher lift than what you're using, with about the same or maybe slightly longer duration...not quite as much as the JBP cams.
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450WHP Turbo Ecotec swap in the works...
Quote:
JBP Stage 2 cams:
Duration @ .050*, Valve Lift INTAKE 260*, 377 EXHAUST 268*, 375
Will these cams help or hinder my application?
I sent an email to JBP about these cams for a supercharger and all they replied was " to ask specifically the LD9 SC grind when ordering" I asked them and the one person I know to have ordered them and noone has replied with specs
Second issue, I have been reading that SC motors like more lift than duration. I know to compare apples to apples, but Crane's ecotec SC grind does not have as much duration as the JBP stage 2's
Third issue, that is a lot of money to pay for a REGRIND!!!
Jason
99 Z24 Supercharged
157hp/171tq - NA
..YA
GM HO .410 lift 212* intake cam. GM W-41 exhasut .410/218* cam.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Shhhhhh!!!! You were not supposed to tell anyone, LOL!!!
Jason
99 Z24 Supercharged
157hp/171tq - NA
i want more agressive cams
where can i buy em
THERE CAN BE ONLY ONE, i have already died once and im still here so lets just leave it on the track
^^^ J-Body Performance.
The only problem with doing any cams that have more than 400 lift is that you have to machine the cam towers so they will work. Plus I heard the opposite when it comes to boost cams (you want more duration than lift). The only thing I can think of is that when you are forcing air in you want it open longer to get more in instead of opening more for a short time??? Is this right?
Supercharger: Likes more duration. Turbocharger: be Careful, and watch overlap, or you will spit flames and raw fuel if taken to the exterme.
"Are you sure your A/F ratio is correct? That hole in your Block custom?"
Sorry I forgot to mention that I have the GM charger but, I want to get a M-62 on my car. JBP's stage 1cams are the secret cams... they just cost more. I am wondering if there stage 2 will work well or not??? Any input will be helpful.
yes i am wondering the same thing because i am planning on doing all this work this winter and i already have secret cams but i was gonna go with the jbp stage 2 cams you guys think i should do because i am doing the supercharger and cams and port n polish all at once.. need some input?
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