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What is the max lift that I can go with for a cam on the 3900?
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3.4 DOHC- 95 engine, custom intake manifold, custom cams, ported exhaust manifolds, Turbonetics T-62, Haltech standalone, 13.5 psi, air/h20 intercooler... yadda yadda...
1987 Fiero, ST lowering springs, KYB's, Clutchnet dual diaphragm 6-puck, custom paint, 18's with falken fk452 225 front Nitto NT05 245 rear. Should be around 450whp... -
whatever you find, make sure you remember that the RAR is 1.7 on the 3900, i thought it was 1.6, but found out different from the ben
FWIW the valve lift on the stock cam is .462, lobe lift published as .272 -
That's something that you'll have to measure for yourself.. the springs will play a large part in it.. I'd say .600 or so but double check your piston to valve clearance as well.Comment
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^^^werd, plus adjusting the cam phaser both waysComment
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