does a underdrive pulley work
TECH Resident
Joined: Oct 2005
Posts: 781
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From: Taxme, Ohio
Don't - dead battery and the performance gain is minimal; less than what people want to think.
Do a search on more than just this forum. I did and decided no. I think people believe in it but unless you're into pure track performance, I wouldn't bother. Take your spare tire out, run with a half tank of gas and gain more acceleration than the UD pulleys can provide. Your electrical / cooling system will thank you. Just another opinion though....
Do a search on more than just this forum. I did and decided no. I think people believe in it but unless you're into pure track performance, I wouldn't bother. Take your spare tire out, run with a half tank of gas and gain more acceleration than the UD pulleys can provide. Your electrical / cooling system will thank you. Just another opinion though....
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Even though my voltage gauge reads 14.1 both with stock and U/D pulley (don't forget about the voltage regulator in the alternator)? At 8 hp for $175 that is $22 per hp. A do-it-yourself cam install costs $750 for 40 hp for $19 per hp. The deciding factor should simply be if you want to spend the money or not.
Its def worth it, will maike 8-10 hp. No loss of driveability.
I dont run a large stereo system, my bud's 02 z28 charges fine. I would do the pulley when your doing a cam, its a PITA to take out and put on but its free hp and free labor if doing the cam.
I will be getting a SLP UD pulley.
I dont run a large stereo system, my bud's 02 z28 charges fine. I would do the pulley when your doing a cam, its a PITA to take out and put on but its free hp and free labor if doing the cam.
I will be getting a SLP UD pulley.
TECH Resident
Joined: Oct 2005
Posts: 781
Likes: 0
From: Taxme, Ohio
Even though my voltage gauge reads 14.1 both with stock and U/D pulley (don't forget about the voltage regulator in the alternator)? At 8 hp for $175 that is $22 per hp. A do-it-yourself cam install costs $750 for 40 hp for $19 per hp. The deciding factor should simply be if you want to spend the money or not.
People have to understand....there is a downside to practically every single mod that we do (except maybe a lid).
Modifications are about compromise. The Upside vs. the downside. HP/Perforrmance vs Reliability/driveablity. What's acceptable for Joe-Bob, may NOT be acceptable for Billy-bob.
I have to say though, a pulley is one of the more mild mods performed and is considered to have very little downside. From my personal experience (not what I've "Read" or "heard from my cousin's brother's dad's uncle")...Out of the 3 different Fbodies I've owned, I've ran pullies on all 3, and have never had a charging issue or any negative side effect.
I wouldn't hesitate to recommend a pulley for a 6-8 rwhp increase.
Modifications are about compromise. The Upside vs. the downside. HP/Perforrmance vs Reliability/driveablity. What's acceptable for Joe-Bob, may NOT be acceptable for Billy-bob.
I have to say though, a pulley is one of the more mild mods performed and is considered to have very little downside. From my personal experience (not what I've "Read" or "heard from my cousin's brother's dad's uncle")...Out of the 3 different Fbodies I've owned, I've ran pullies on all 3, and have never had a charging issue or any negative side effect.
I wouldn't hesitate to recommend a pulley for a 6-8 rwhp increase.
TECH Resident
Joined: Oct 2005
Posts: 781
Likes: 0
From: Taxme, Ohio
People have to understand....there is a downside to practically every single mod that we do (except maybe a lid).
Modifications are about compromise. The Upside vs. the downside. HP/Perforrmance vs Reliability/driveablity. What's acceptable for Joe-Bob, may NOT be acceptable for Billy-bob.
I have to say though, a pulley is one of the more mild mods performed and is considered to have very little downside. From my personal experience (not what I've "Read" or "heard from my cousin's brother's dad's uncle")...Out of the 3 different Fbodies I've owned, I've ran pullies on all 3, and have never had a charging issue or any negative side effect.
I wouldn't hesitate to recommend a pulley for a 6-8 rwhp increase.
Modifications are about compromise. The Upside vs. the downside. HP/Perforrmance vs Reliability/driveablity. What's acceptable for Joe-Bob, may NOT be acceptable for Billy-bob.
I have to say though, a pulley is one of the more mild mods performed and is considered to have very little downside. From my personal experience (not what I've "Read" or "heard from my cousin's brother's dad's uncle")...Out of the 3 different Fbodies I've owned, I've ran pullies on all 3, and have never had a charging issue or any negative side effect.
I wouldn't hesitate to recommend a pulley for a 6-8 rwhp increase.
