LS1TECH - Camaro and Firebird Forum Discussion
LS1-LS2-LS3-LS6-LS7 PERFORMANCE
Forced Induction
Accessories issue

Forced Induction Superchargers | Turbochargers | Intercoolers

Accessories issue

Reply Subscribe

Search this Thread

Old

Oct 22, 2025 | 04:58 PM

#1

crammerpalmdale

Thread Starter

Teching In

Joined: Oct 2025

Posts: 11

Likes: 3

Default

Accessories issue

Just wondering if others running truck accessories are or have had any problems with there tensioner's over extending. If I make 2 or 3 pulls to 7k it will over extend my belt tentioner so bad it breaks the little aluminum stop off. This allows the pulley to flip around counter clockwise, and loose tension on the belt. I've never seen anything like it. I've tried 2 different length belts and 2 tensioner's now. Opinions please?

Old

Oct 24, 2025 | 03:07 PM

#2

TECH Regular

Joined: Dec 2022

Posts: 444

Likes: 158

Default

There is a million trucks out there running those accessories...

Old

Oct 24, 2025 | 05:14 PM

#3

TECH Enthusiast

Joined: Feb 2020

Posts: 734

Likes: 209

Default

If I'm getting the description of what's happening correct , I'd say the belt is too long. There's a longer belt with the 145 amp alternator vs the 105 amp , maybe that's it ?

Old

Oct 24, 2025 | 05:15 PM

#4

TECH Enthusiast

Joined: Feb 2020

Posts: 734

Likes: 209

Default

Also misfires at high rpms can really mess with the belt

Old

Oct 25, 2025 | 01:12 PM

#5

TECH Fanatic

iTrader: (3)

Joined: Oct 2016

Posts: 1,584

Likes: 374

From: Armstrong BC

Default

Put a manual tensioner on it

Old

Oct 31, 2025 | 10:04 AM

#6

Black_Sunshine_99

TECH Junkie

iTrader: (11)

Joined: Mar 2013

Posts: 3,857

Likes: 837

From: Washington

Default

Quote:

Originally Posted by 91 Z28

Put a manual tensioner on it

Katech manual tensioner ftw.

Old

Oct 31, 2025 | 11:49 AM

#7

TECH Fanatic

iTrader: (3)

Joined: Oct 2016

Posts: 1,584

Likes: 374

From: Armstrong BC

Default

Quote:

Originally Posted by The ******

Katech manual tensioner ftw.

I've got the one from Hawks

Trending Topics

Starting issues

20

610
Epic SRK B/S thread of 2019

12.7k

560.9k
Never knew about this Trans Am before

8

182
Compression check

9

290
LT1 camero. Fastest stock NA pony car ever?

1.1k

30.3k

Old

Oct 31, 2025 | 10:31 PM

#8

ModSquad

iTrader: (6)

Joined: Jan 2012

Posts: 7,828

Likes: 5,174

From: Dawsonville Ga.

Default

As rpm gets around 7k, especially with a quick accelerating engine, the factory tensioners tend to get weak. I’ve used the Katech manual tensioners to fix the issue. No more thrown belts.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

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

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 09:40 AM.