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underdrive pulleys

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Old Feb 1, 2009 | 02:05 AM
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Default underdrive pulleys

are they worth the money? i was looking around at some and found a set that seems like a good deal if doing them is going to be worth my time and money.

http://www.troyerperformance.com/cgi...talogno=549984
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Old Feb 1, 2009 | 02:38 AM
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Not if you have a stereo.
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Old Feb 1, 2009 | 09:18 AM
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Personally I think they're a waste of money. Some guys will try to tell you they did back to back runs before and after the pulley swap and gained 6-10RWHP. The reality is that this is more than likely due to the fact their engines cooled off while swapping pulleys or the inconsistency of the dyno itself.
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Old Feb 1, 2009 | 09:22 AM
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great mod. 5-10 rwtq throught the RPM range, better mileage and more HP. can't go wrong.
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Old Feb 1, 2009 | 12:40 PM
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i gained 2 tenths in the 1/4 mile with my ASP pulley and i noticed a difference. . . .IMO every little hp/tq adds up in the long run
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Old Feb 1, 2009 | 01:02 PM
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The 3 piece set made a big seat of the pants difference in my 1995 V8 Dakota, as much as my MP R/T cam did, no kiddin.
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Old Feb 1, 2009 | 01:17 PM
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Originally Posted by blackbeast ss
i gained 2 tenths in the 1/4 mile with my ASP pulley and i noticed a difference. . . .IMO every little hp/tq adds up in the long run
I ran an ASP on my SS. I've seen 5-7rwhp gains and the main benefit is the motor revs up noticeably faster.
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Old Feb 1, 2009 | 01:18 PM
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Originally Posted by Justin00SS
Not if you have a stereo.
not if you have a 2000+ watt stereo.

maybe i will buy it and do it when i do a cam and heads....
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Old Feb 1, 2009 | 05:18 PM
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Had march underdive pullies on my camaro back in the day.. same thing... gained an honest two tenths in the 1/4... i like pullies myself...plan in getting the asps...
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Old Feb 1, 2009 | 07:39 PM
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well i may try these...

this particular set is cheaper than summit's sets for our trucks.. however, the gator belts on summit are cheaper... 4 dollars cheaper on summit than that site and im thinking the $35 for the shorter a/c belt must be a typo bc on summit its over $20 different in price. So buy the belts from summit if you do this kit from troyer

How much are the asp's from someone other than summit or jegs?
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