383 build specs
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Joined: Sep 2001
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From: Glenbeulah Wi
My opinion is it will run fine with a Mini ram, superram, or HSR, but not a TPI style intake. The cam is a flat tappet design that was designed to work with a carb but a good tuner can get it to work well with an intake designed to operate in the 3000 RPM to 6000 RPM range. The TPI intake is not really designed for that RPM range and if you plan to run it the cam should be changed.
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Joined: Apr 2005
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From: Dale City VA
Thread Starter
Intermediate
Joined: Dec 2011
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well I played with the timing again and now got it running pretty good. But it seem the Idling is a little high, what sould the idling be at. (Like I said I am new to this, so please look over my ignorance.)
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Joined: Dec 2011
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I got it set at 6 degrees like the programmer told me. Buy the way what size rear end do I have, it has a 3.07 in it, but I dont know if it has a dana 36 or dana 44. And it idles at 800 to a 1000 in drive.
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From: Dale City VA
Will
Safety Car
Joined: Apr 2005
Posts: 3,624
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From: Dale City VA
http://www.ringpinion.com/
Will
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Drifting
Joined: Mar 2009
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From: East Wenatchee (2hours from n e where) WA
I personally do NOT think that cam will run worth a crap on an HSR intake... the lobe centers are too short and it has too much intake duration (seat timing).... Pay no attention to the @.050 numbers... they are very misleading on this camshaft.
It has 70* of overlap (advertised). The intake valve opens at 37*BTDC and closes at 69*ABDC.... IMO the reversion is going to cause kinds of tuning and low speed drive ability problems with an intake that has a huge plenum like the HSR or MR or SR.
Might make decent power at WOT but is going to suck to drive around at part throttle.
Clearly those valve timing events are for a carburated engine. The advertised duration and lobe centers are very close/same as the camshaft in my 92 (which has a single plane intake conversion)...
If your going to cam an engine like its carb'd then use a carb intake.
If your gonna use a TPI intake then cam it for the TPI.
Also - Those factory exhaust manifolds have got to go.
What does the rest of the exhaust look like.... FYI the factory Y-Pipe system flat sucks at the kind of HP that engine could make.
Will
It has 70* of overlap (advertised). The intake valve opens at 37*BTDC and closes at 69*ABDC.... IMO the reversion is going to cause kinds of tuning and low speed drive ability problems with an intake that has a huge plenum like the HSR or MR or SR.
Might make decent power at WOT but is going to suck to drive around at part throttle.
Clearly those valve timing events are for a carburated engine. The advertised duration and lobe centers are very close/same as the camshaft in my 92 (which has a single plane intake conversion)...
If your going to cam an engine like its carb'd then use a carb intake.
If your gonna use a TPI intake then cam it for the TPI.
Also - Those factory exhaust manifolds have got to go.
What does the rest of the exhaust look like.... FYI the factory Y-Pipe system flat sucks at the kind of HP that engine could make.
Will
That cam will not work with that top end. End of story. The lobe centers are way to close and the cam will start to run at about 3500, the top end is starting to gasp at 4500.
