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Old 09-29-2009, 09:35 PM   #2
NoDOHC
The quest for more torque
 
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Quote:
Originally Posted by FC3S Murray View Post
115 psi pulses? Man I was seeing 55 psi and I heard the average(via rotary ressurection) was 30-35 psi for each consecutive pulse. ?hmm

I am not worried until I hit 1500 miles.
Hey, I figured this out! My Compression tester pushes right into the port (no hose). I went to Silver86's the other day and we compression tested his engine, we got 45-50 psi bounces with his gauge (with a long hose). We tried it on my '91 and got 65 psi pulses.

I feel stupid, the difference is the amount of air to compress in the hose going up to the compression gauge. I should have thought of this before.

The '91 gets 110 psi on his gauge (so don't feel at all bad about 55 psi).

Just thought I would clear this up.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
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