That sounds just like the advertisement I read on Speed Inc., 's web site. 
Underdrive pullys, which one?
Underdrive pullys, which one? Is one better than the other? Looking at ordering one today or tomorrow. SLP or ASP? I know the powerbond is the SLP. March, I thought I heard about some issues.
just had the pwerbond installed. damn its nice compared to the stock 1. if you go with asp i hear you gotta buy the katech tensioner to prevent belt slippage. this is why i jumped on the powerbond
Originally Posted by ski23
just had the pwerbond installed. damn its nice compared to the stock 1. if you go with asp i hear you gotta buy the katech tensioner to prevent belt slippage. this is why i jumped on the powerbond
I think the Powerbond/SLP pulley is the best.
SLP's new 25% underdrive balancer for LS1 F-Bodies incorporates a number of high-quality features you won't find on any other aftermarket unit. Chief among them are a pair of extra-tall belt-retention walls that eliminate the belt-slippage issues endemic to other LS1 balancers (see photo). Other unique design strengths include 100% steel construction (other brands use steel and aluminum), integral timing marks, and built-in puller-mounting threads. Includes a new balancer bolt and detailed installation instructions.
FEATURES:
Extra-tall belt-retention "walls"--no more thrown belts!
No aftermarket tensioner required
100% steel construction
Lighter than the stock balancer
Integral timing marks and puller-mounting threads
Keyed for high-rpm or supercharged applications
Does not cause false knock retard or erratic power-curve dips
Includes a new balancer bolt
SLP's new 25% underdrive balancer for LS1 F-Bodies incorporates a number of high-quality features you won't find on any other aftermarket unit. Chief among them are a pair of extra-tall belt-retention walls that eliminate the belt-slippage issues endemic to other LS1 balancers (see photo). Other unique design strengths include 100% steel construction (other brands use steel and aluminum), integral timing marks, and built-in puller-mounting threads. Includes a new balancer bolt and detailed installation instructions.
FEATURES:
Extra-tall belt-retention "walls"--no more thrown belts!
No aftermarket tensioner required
100% steel construction
Lighter than the stock balancer
Integral timing marks and puller-mounting threads
Keyed for high-rpm or supercharged applications
Does not cause false knock retard or erratic power-curve dips
Includes a new balancer bolt
TECH Enthusiast
Joined: May 2006
Posts: 644
Likes: 0
From: south jersey
i put on the slp underdrive pulley on my car a couple days after installing a mezeir water pump... the water pump gave more noticible effect on performance.. but the slp is well made , alot nicer then the stocker and the belts they recomend are even alil tighter then the stock belts with stock pulley.. the stocker was a bitch to get off, retards should of desined it to have atleast bolt holes in it or something , with the slp i know if i ever need to take it off atleast i got an easier way.. i redlined my car alot since its been on so i dont think its going to slip off the grooves are deeper then stock and its shinny too haha .. but some advise.. leave the pulley in the box till your ready to install, i had mine out for a couple days and the inside started to rust alil.had to use a washer and a small sledge hammer to get it on far enough to catch the threads .. also make sure you got a few rows of threads before you use the bolt to pull the pulley in.. you dont wanna strip the crank threads.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo
Are the ASP or SLP ones SFI approved at all? I don't know how serious track techs are about SFI approved balancers and flywheels with low 11 and mid 10 cars on test n tune nights.
I think I'm going to order one in the next few days to go along with the rest of my motor I'm putting together. For the same price as the SLP one, I can get the ASP one with the alternator pulley too...which would probably be a good idea for me if I'm going to have a 10" sub in the back too..
I think I'm going to order one in the next few days to go along with the rest of my motor I'm putting together. For the same price as the SLP one, I can get the ASP one with the alternator pulley too...which would probably be a good idea for me if I'm going to have a 10" sub in the back too..
Are the March LS1 pulleys lighter because they are Aluminium?
I have a March Pulley on my 3rd gen and never had a problem.
I just got my belts in the mail yesterday so my March pulley,160 thermostat and SSRA will be going this week hope to see some extra power.
I have a March Pulley on my 3rd gen and never had a problem.
I just got my belts in the mail yesterday so my March pulley,160 thermostat and SSRA will be going this week hope to see some extra power.
Last edited by Z28XTC; May 21, 2006 at 11:04 PM.
Originally Posted by Z28XTC
Are the March LS1 pulleys lighter because they are Aluminium?
I have a March Pulley on my 3rd gen and never had a problem.
I just got my belts in the mail yesterday so my March pulley,160 thermostat and SSRA will be going this week hope to see some extra power.
I have a March Pulley on my 3rd gen and never had a problem.
I just got my belts in the mail yesterday so my March pulley,160 thermostat and SSRA will be going this week hope to see some extra power.
