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Large cam w/o adverse affects?

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Old Sep 11, 2001 | 06:54 AM
  #1  
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From: Fort Wayne, Indiana, U.S.A.
Car: CTS-V & 89 Z28 vortech charged
Engine: LS6 & 383 charged stroker
Transmission: 6-speed & 5 speed
Large cam w/o adverse affects?

What is the largest cam that a M.A.F. sensed L98, with stock heads and crane 1.6 roller rockers will:

A: Idle decent
B: Have sufficent valve to piston clearance
C: Not affect the computer

Anyone?
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Old Sep 14, 2001 | 09:18 PM
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jmd
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From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
An energizer 272 Crane came is quite mismatched to an L69 with LB9 EFI added to it. But it'll run.

YMMV...

------------------
jmd
1986 SS with...
86LB9 TPI atop the original L69, hydraulic clutch T5, Energizer 272 cam, chargedair.com fan, Global West CNR-88-C negative roll kit, 89 Iroc front springs, CC635 Moog rear springs and a whole bunch of other fun stuff

Last edited by jmd; Feb 18, 2014 at 09:55 PM.
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Old Sep 14, 2001 | 11:11 PM
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Less than 220 intake duration, wide lsa like 112-114, less than .480 lift. Piston to valve clearance on most engines isnt the problem, its valve spring bind and retainer-guide clearance thats the problem.
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