Underdriven Pullet Horsepower gains?

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Aug 2, 2004 | 08:32 PM

oztrack

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From: Sydney, Australia

Underdriven Pullet Horsepower gains?

Can people share Underdriven Pullet Horsepower gains?(claim backs)
Interested to know how much these help.

Aug 3, 2004 | 07:33 AM

jrp

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From: Valencia, Ca

gains show more at the track then the dyno.

Aug 3, 2004 | 09:49 AM

METALBEAST

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I've saw dyno graphs showing 4 to 9 RWHP gains

Aug 3, 2004 | 10:13 AM

BADSZ28

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From: NW Chicago Subs

More of a track and SOP gains. Definately will feel it. For some reason, not much dyno gain. Worth a tenth or two in the 1/4.

Aug 7, 2004 | 11:34 AM

SStolen

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Would you still want to consider one if you have 4.10 gears? I hear it has more of a "gear" feel, hence the track performance gain, than "added hp" feel.
Also, whats the deal on the new ones out? I never bought one because they were giving false knock retard and making the hp curve fall off early because they were unbalanced.

Aug 11, 2004 | 11:55 PM

LS1LT1

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Quote:

Originally Posted by SStolen

Would you still want to consider one if you have 4.10 gears?

Yes

Aug 12, 2004 | 12:20 AM

lilredZ

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Quote:

Originally Posted by SStolen

making the hp curve fall off early because they were unbalanced.

I know for an LT1 March crank pulley, you have to put the stock pulley on overtop of the new pulley (belt rides on new pulley) to keep everything balenced. Not sure on LS1 engines. I can post a pick if anybody wants it.