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Old 01-27-2010   #11
bdw18_123
 
Join Date: Apr 2009
Location: Prather, CA
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Default Re: cam timing

Quote:
Originally Posted by Pete View Post
...
Can somebody post Marc H's Cam Timing event pictures on page 10.
Pete
Can do!

Here is the cam event timing picture:


Here is the before and after dyno graph on the previous page:
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Old 01-30-2010   #12
flyin ryan
 
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Join Date: Aug 2006
Location: Edmonton, Alberta or Phoenix, Arizona
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Thumbs up Re: cam timing

Glad you got it .
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Old 04-21-2010   #13
Sgreg
 
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Join Date: Aug 2006
Location: Texas
Posts: 518
Default Re: cam timing

[QUOTE=Dynomite;87525]I am now using Intake 114 and Exhaust 108 for ported top end (plenum/injector housing/heads)and SW headers with SW 3 inch exhaust (no CATS) 91'.

Marc suggests to have a broad torque and power range (3000 to 7000 rpm) use I 114 and E 110. 114/114 is nice when trying to tame idle roughness out of a cammed engine. I

I notice the factory cam timing specs may be different on a 90-92 versus a 93? I see on one diagram that the 90-92 are set at I114 and E114. I assumed that is factory engine with the pinned settings.

The single flats on a 91' camshaft/vernier plate have a play of up to 6 degrees (crankshaft degrees). I think 93's have double flats with the play cut in half or 3 degrees (crankshaft degrees).
http://www.zr1.net/forum/showpost.ph...8&postcount=13
/QUOTE]

Stupid question: How does Stage One cam grind effect cam timing on a 91 engine with the same mods?
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