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I recently have been buyin' stuff that i would not normally buy for the truck. And one thing that has cross through the ole noggin are those controversial (problaby didn't spell that right) ASP underdrive pulleys, i have noticed not many guys here have them and there has to be a reason behind that. I don't mind the $200 if it is a good product. If it only is 5-10hp who cares it is 5-10 hp that i didn't have before. I know money can be spent wisely somewhere else, but I am already in the process of the whole cam, stall, rods, springs, retainers, shifkit thing. And i wouldn't mind a little horsepower now.
How do you guys feel about this product?
:jump: :jump: :jump:
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Its your money, buy whatever you like. :thumb:
Most people don't buy them due to false knock often associated with an aftermarket pullies or dampners. Underdrive pullies alone will cause your alternator to turn a lot slower and kills the efficiency of your alternator output and water flow rate. I guess if you're running a higher gear ratio in the rear end you're going to be turning enough RPM to offset the smaller pullies. :duh:
Honestly, the thought to add them has crossed my mind numerous times lately. Then again, I have been in the "throwing money down a hole" mode for a while now.
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Good point, but you can get a smaller alternator pulley to offset the slowing efficiency rates.
And Also Just purchased 145A alternator today.
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I say go for it but do a before and after time trial to see what you gain.
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Before and After would be a great Idea.
I want to hear from someone who has these pulleys and see if they like em' before i buy them. You know what I mean? :eek:
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i have one on my truck its alright i picked up 7hp and 10tq i can feel alittle difference and it revs alittle faster and u lose a little weight my stock one was 12 lbs and the asp is 9 but it does slow down the water pump and fan and if i dont watch it it will get hot if i am just sitting there in 110 dregree heat now that its cooled down out i dont have a problem. i need electric fans
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I gained the same as bigpat502, 7 RWHP AND 10 RWTQ, Allen did a before and after dyno, when we put mine on. I think that they are worth it in my opinion. :thumb:
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should you go under or over drive alt pulley with the underdrive crank which is better
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you wont need the oversized alt. pulley it will just make it harder to keep the amps up, if anything you want a smaller pulley for the alt.
