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Old 03-28-2002, 07:02 PM   #1
1995MGTS
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Join Date: Mar 2001
Location: Chesapeake, VA USA
Posts: 69
Default Powerdyne Dyno numbers and continuing frustration

Not huge numbers compared to the S-trims, NOVI 2000's, and ATI P/D1's but not bad for a little 800cfm blower. Problem is the car will not pull past 57-5800rpm. The car just kind of bucks and stops pulling at that point. I have heard from others that it might be sparkplug blowout. My plugs are gapped stock (.45?) and need to be more along the lines of .32-.35. Anway, here are the numbers:

1st run: 379.1rwhp/377.9rwtq
2nd run: 392.6rwhp/386.9rwtq
3rd run: 394.8rwhp/386.2rwtq

All numbers are SAE corrected and performed on a dynojet.
Max boost observed was 9psi at 5700rpm.
My rwtq was 320@2800rpm and finished off at 360@5700rpm.
Air-to-fuel ratio was very rich and was 11:1@5700rpm.

The hp curve showed no signs of dropping off and if I could fix my problem and pull to at least 6000rpm, I should see at least a peak of 400rwhp, maybe a bit more. Not bad for a 6lb Powerdyne.
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2003 Redfire Cobra #5978 of 8394
-Pro-5.0
-DC cai
-Steeda x-pipe w/cats
-Steeda cat-back
-Lightning pulley w/Afterburner
441rwhp/434rwtq SAE
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