At what power level do you need to change cylinder heads?
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At what power level do you need to change cylinder heads?
On a turbo application, at what power level do you need to change from lets say a 300-310cfm standard stage 2 head to a better casting that flows say 340-350cfm due to design? I am trying to decide to run ported LQ9 heads or step up to the ETP LS7 heads. The motor is going to start as a 40x cube iron block S95 turbo and eventually go to a GMPP iron block with 4.100-4.160 bore. Power goals are 1200-1400.
Phil
Phil
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Originally Posted by 2002/Black/SS
i think a sponsor here made 750wheel with stock 6.0l heads on a 370 or a 408, i cant remember
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Originally Posted by pwrtrip75
To flow more air, run more boost.
Phil what intake you lookin at to keep up with the heads.
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im very interested too, im new to most of this stuff and wanna learn. but common sense would tell me to spend the $$$ and then upgrade what you have until the heads cant go any further
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This is a good topic as the heads i was going to run might not work as the bore on the heads might not seal against the 0-rings.
Anyone else running big power numbers with stock castings and not lifting the heads?
Anyone else running big power numbers with stock castings and not lifting the heads?
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Originally Posted by chris.shea
but why not just flow more air by removing some restriction? yea its cheaper to turn the boost controller a few pounds higher but compressing air more raises your IAT's(bad for power). 1000hp with 17lbs or 21lbs. its obvious one is more efficient. ill be grabbing some popcorn as im interested
Phil what intake you lookin at to keep up with the heads.
Phil what intake you lookin at to keep up with the heads.
#17
Originally Posted by chris.shea
but why not just flow more air by removing some restriction? yea its cheaper to turn the boost controller a few pounds higher but compressing air more raises your IAT's(bad for power). 1000hp with 17lbs or 21lbs. its obvious one is more efficient. ill be grabbing some popcorn as im interested
Phil what intake you lookin at to keep up with the heads.
Phil what intake you lookin at to keep up with the heads.