Underdrive Pulley Kit???

Reply Subscribe

Thread Tools

Search this Thread

Sep 8, 2010 | 09:42 PM

MTC_75vette

Thread Starter

Launching!

Joined: Jan 2010

Posts: 201

Likes: 0

From: NJ

Underdrive Pulley Kit???

I was told that the SLP Underdrive pulley kit can gain 12-15 hp. My question is that to the wheels or off the motor? I am looking for easy ways to pick up extra power but I want to know if the $200 bucks is worth spending on this upgrade.

Sep 9, 2010 | 12:02 AM

zacht

TECH Fanatic

iTrader: (18)

Joined: Feb 2006

Posts: 1,021

Likes: 0

hm, i dont think thats to the wheels. i think ive seen about 7-10 to the wheels on some cars.

Sep 9, 2010 | 10:07 AM

Jon@Texas-Speed

FormerVendor

iTrader: (18)

Joined: Sep 2004

Posts: 3,043

Likes: 2

From: Lubbock, TX

UD pulleys typically pick up about 8 hp to the ground. They are a pretty good mod for the money. Let us know if you need one. We have several options that will get you fixed up! Pricing is hard to beat as well!

Jon

Sep 9, 2010 | 10:19 AM

camz28arro

TECH Enthusiast

iTrader: (12)

Joined: Nov 2008

Posts: 590

Likes: 0

From: Long Island, NY

8rwhp or 10hp, it is worth about a tenth at the track though. Thread should be in external though.

Sep 9, 2010 | 10:21 AM

BlackScreaminMachine

Internet Mechanic

iTrader: (17)

Joined: May 2005

Posts: 9,830

Likes: 2

From: Wallingford CT

I will mention that with the SLP pulley, it does have a SFI rating and has a LARGE lip that does keeps from throwing belts. I still run a stock tensioner.

Sep 9, 2010 | 11:53 AM

*02WS6TURK*

12 Second Club

iTrader: (13)

Joined: Apr 2010

Posts: 1,627

Likes: 1

From: Oregon Grown

Good luck so far with my Powerbond UD Pulley from Texas Speed.

Sep 9, 2010 | 12:37 PM

08 silverado z28

On The Tree

Joined: Mar 2010

Posts: 125

Likes: 0

From: Houston Tx

I have a 6.0 iron block make into a 408 that's going in a truck. Texas speed do u have kits for trucks? 2008 silverado. And What would b my benifits from that?

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Sep 9, 2010 | 08:11 PM

MTC_75vette

Thread Starter

Launching!

Joined: Jan 2010

Posts: 201

Likes: 0

From: NJ

Quote:

Originally Posted by Jon@Texas-Speed

Jon

Hey Jon thanks for your reply yes I am interested could you send me a link with prices?

Sep 9, 2010 | 08:40 PM

#10

mike c.

10 Second Club

iTrader: (1)

Joined: Mar 2002

Posts: 4,031

Likes: 2

From: mi

Funny. The guy at vector motorsports who dynos and tunes my car told me he dyno alot of the pullys out. I guess they did some pully dyno testing one day since it's his shop and dyno. He told me none really showed power on HIS mustang dyno but one did gain 3hp. I have the asp pully and i had the slp pully,I sent the slp back. the asp pully is much lighter and will free up some mass and make the car spin up a lil quicker. I have ran asp pullys on my ls1 and ls2 stroker with no troubles running close to 9's on it. The up side,lighter weight,car spins lil faster and gaines in the 1/4mi about one tenth. Down side.......can't think of one.

Sep 9, 2010 | 10:39 PM

#11

Elcolq4

Teching In

Joined: Sep 2010

Posts: 37

Likes: 0

From: Redding, CA

There definetly worth the money but you migh try other places becasue ive seen them go for about 90 bucks, but regarding the mustang dynos, they read 10 to 15 % down on horsepower