Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Underdrive alternator/crank pulleys...

Thread Tools
 
Search this Thread
 
Old Aug 2, 2006 | 01:53 AM
  #1  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default Underdrive alternator/crank pulleys...

Anyone ever use the underdrive pulley from thunder racing? do you get power? i was just wondering as im about to order my UD crank pulley and saw it and thought i would see what everyone had to say about it
Reply
Old Aug 2, 2006 | 02:09 AM
  #2  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

It is a good bolt on. You can free up some good power.
Reply
Old Aug 2, 2006 | 02:43 AM
  #3  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

**** that was supposed to say alternator pulley!

my freakin ac belt is squeaking, so i figured, if im going to have my hands down in hard to reach places, might as well change the crank pulley while i got belts and **** off...

so let me refraze my question, anyone ever throw on a underdrive ALTERNATOR pulley?
Reply
Old Aug 2, 2006 | 02:45 AM
  #4  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

You don't need to have the alt. pulley on underdrive also. You will probably have dim lights and bad charge on your battery.
Reply
Old Aug 2, 2006 | 02:49 AM
  #5  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

haha yea thats what i was thinking i was just seeing if anyone had done it...
Reply
Old Aug 2, 2006 | 02:52 AM
  #6  
orangeapeel's Avatar
ЯєŧąяĐ Єl¡m¡иąŧøя ™
iTrader: (18)
 
Joined: Nov 2004
Posts: 16,083
Likes: 4
From: Justin, TX
Default

I would put the money elsewhere honestly.
Reply
Old Aug 2, 2006 | 03:14 PM
  #7  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

From what I understand, its actually an OVERDRIVE alternator pulley that you put on to boost alternator output back up, while still turning the rest of the accessories at a slower pace.
Reply
Old Aug 2, 2006 | 06:44 PM
  #8  
staringback05's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Apr 2006
Posts: 6,695
Likes: 2
Default

who does the packages? with the alt and underdrive
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 05:47 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE