Performance question.
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Cruiser
Joined: Feb 2006
Posts: 108
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From: Wilmington, NC
Performance question.
I recently upgraded to andrews 26g cams, 95" pistons,and screaming eagle heads,also running with a pcIII,and vh tru duals. The problem comes when going through the gears, pulls real hard through the first half of each gear then seems to really flatten out,almost like I missed a shift. Is this a map problem,like not enough fuel in the upper rpm range,ormaybe to small a cam for this setup?? I'm confused any help will be greatly appreciated.Thanks
BR
BR
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Performance question.
THe Andrews 26 is a bolt-in cam that is "designed" to perform best with stock compression and the flow rate(s) of stock heads.
You are likely close to 10:1, if you have S/E perf heads vs. 9:1'ish that stock is. Furthermore, the 26 is a low end torque cam. It will fall off over about 4000~4500 RPM. It is also quite likely that you'll experience some pinging at that CR with 26's.
In that build, you probably be better off with S&S 570 cams~ like the "Hippo Build".
You are likely close to 10:1, if you have S/E perf heads vs. 9:1'ish that stock is. Furthermore, the 26 is a low end torque cam. It will fall off over about 4000~4500 RPM. It is also quite likely that you'll experience some pinging at that CR with 26's.
In that build, you probably be better off with S&S 570 cams~ like the "Hippo Build".
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