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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 04-18-2015, 03:10 PM   #1
art_ss
 
Drives: 2015 white 1Le ss
Join Date: Feb 2015
Location: california
Posts: 46
underdrive pulley question??????

I would like to get a underdrive pulley for my car and don't know if it is worth it or it is not , because it looks like a cheap nice tune I read some info and said 9 whp that's not bad for $200, I would like to get some feedback , and would be great if you guys could tell me what too look for on underdrive pulleys. thank you.
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Old 04-18-2015, 09:33 PM   #2
376LS3
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Drives: 2010 2SS
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Dont waste your time and money unless you are doing a cam swap. 9whp is very high. More common is 2-3. It wont gain you any power, it only frees up some power. A crank pulley isnt a power hoarder.
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Old 04-18-2015, 10:56 PM   #3
Bodywerks
 
Drives: 2015 2SS/RS/1LE
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Here's something to think about also. That 9rwhp is based on a 25% UDP, AND it assumes that you also have a power steering pump, which you don't.
That said, I have a powerbond 25% UDP on my 2015 1LE and so far no regrets. I would have to estimate that it only freed up, maybe 4rwhp. I installed it at the same time as my intake, throttle body, and throttle controller though, so I can't say how much it helped. It couldn't have hurt - like I said, it definitely frees up HP, and it lowers the rotating mass on the crank.
I will say this, don't make it your first mod. Go for the Vitesse throttle controller, ported throttle body, and or intake first, most definitely.
It will also require a special size belt. I used an Autozone 785K6
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HSA delete, VMAX throttle body, CAI inc. Intake, Apex air scoop, Vitesse throttle controller, Powerbond 25% underdrive pulley...more to come!

Last edited by Bodywerks; 04-18-2015 at 11:12 PM.
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