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Old May 1, 2015 | 01:16 AM
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Default Cam Question

I have an AFE intake and I will install an off road Borla X Pipe this weekend (time permitting). I believe that this should be sufficient in removing air flow restrictions to where I should be able to get solid gains from an aftermarket cam without having to remove the factory headers. This should allow me to not have to pulley down on the supercharger to regain lost boost from aftermarket headers. I may do this to see what the differences are. I believe shops will blow seals on these cars like they did on the Stingray's and if I do not have to then why pulley down?

Thoughts please?
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Old May 1, 2015 | 08:32 PM
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Originally Posted by shftn7
I have an AFE intake and I will install an off road Borla X Pipe this weekend (time permitting). I believe that this should be sufficient in removing air flow restrictions to where I should be able to get solid gains from an aftermarket cam without having to remove the factory headers. This should allow me to not have to pulley down on the supercharger to regain lost boost from aftermarket headers. I may do this to see what the differences are. I believe shops will blow seals on these cars like they did on the Stingray's and if I do not have to then why pulley down?

Thoughts please?
You are assuming that loosing boost via header install equals less power, not so. By increasing the engines ability to move volumes of air, you will loose boost but GAIN HP.
I had pulleys on my zr1 for 19.5# of boost, dropped to 13# with the head/cam/headers, but gained 115hp over the higher boost stock 6.2

On the seals, I have NO idea of what your talking about, can you clarify?
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Old May 2, 2015 | 01:51 AM
  #3  
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Originally Posted by JHEBERT
You are assuming that loosing boost via header install equals less power, not so. By increasing the engines ability to move volumes of air, you will loose boost but GAIN HP.
I had pulleys on my zr1 for 19.5# of boost, dropped to 13# with the head/cam/headers, but gained 115hp over the higher boost stock 6.2

On the seals, I have NO idea of what your talking about, can you clarify?
Yep what he said.Any supercharged or turbo car I had that I modified to flow better thru heads,cam and exhaust lost boost but picked up HP.

Generally Less restriction equals more flow and more HP but less boost
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Old May 2, 2015 | 11:19 PM
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Originally Posted by JHEBERT
You are assuming that loosing boost via header install equals less power, not so. By increasing the engines ability to move volumes of air, you will loose boost but GAIN HP.
I had pulleys on my zr1 for 19.5# of boost, dropped to 13# with the head/cam/headers, but gained 115hp over the higher boost stock 6.2

On the seals, I have NO idea of what your talking about, can you clarify?
I heard through the grapevine that someone had pulleyed down a Z and busted a seal very similar to the C7 problem we had in the beginning, thus the LMR breather kit and Lashway, etc. I couldn't find the video of the C7 on the dyno. Anyway I am just going to get the headers with the cam and use a breather system like I did on my Stingray. Thanks for the help.
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