underdrive pulleys - Hyundai Performance Forums

badasstiburongt · 09-20-2003, 10:34 PM

Okay... I've read all the articles previously written about underdrive pulleys but i'm still a little slow!! How does the underdrive pulley "make" extra horsepower??? What about side effects?? Will it help a car with minor N/A mods (CAI, cat back exhaust, magnecor wires)? Thanks!

Jiggy Verna · 09-20-2003, 11:00 PM

It doesn't "make" horsepower really. You know how there is hp at the crank and also hp at the wheels? Well, the hp at the crank doesn't change but the loss of hp through the drivechange is less due to the lighter pulley. You get more hp at the wheels this way. I am definitely going to get one as one of my next mods. Probably after headers.

dweet · 09-20-2003, 11:25 PM

whats easier for you... bench press 10 lbs or bench press 100lbs....

question answered?

same pricipal as getting a lighter flywheel or getting rid of power steering

[Edited by dweet on Sep 20, 2003 7:26 PM]

badasstiburongt · 09-21-2003, 05:18 PM

cool... so just by freeing up the pressure on the crank, more power can be transferred through the drivetrain to the wheels... 8D

Jiggy Verna · 09-22-2003, 11:10 AM

Exactly

qwiksmooth · 09-22-2003, 02:28 PM

Also, the pulleys are like 20% smaller than stock I think, so that means that your accessories turn slower and rob less power from the engine.

OdessitPashka · 09-22-2003, 07:40 PM

how bad will A/C will be workin? and will it take power from other parts?
thanx

1stgentibs · 09-22-2003, 08:08 PM

a/c will be BETTER, so dont stress it.
at idle, you'll notice the lights dim, but thats it really.

OdessitPashka · 09-22-2003, 08:29 PM

thanx bro
so only performance will be gained? nothing bad will happen?

i guess its gona be my next mod after exhaust!!!

dweet · 09-22-2003, 09:07 PM

supposedly it wears on the crank bearings faster but no proof has really been shown yet