C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Under drive pully

Thread Tools
 
Search this Thread
 
Old Nov 3, 2002 | 01:28 AM
  #1  
scool93535's Avatar
scool93535
Thread Starter
Drifting
 
Joined: Aug 2002
Posts: 1,317
Likes: 0
From: Lancaster CA
Default Under drive pully

I'm thinking of an under drive pully for my next mod. Seems to me that just reduces the accessories load on the engine right? It shouldn't affect tune / A/F mix, etc..

Somebody jump in here if I'm worng please. :cheers:
Reply
Old Nov 3, 2002 | 01:30 AM
  #2  
C5-VERT's Avatar
C5-VERT
Le Mans Master
Supporting Lifetime
20 Year Member
 
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
Default Re: Under drive pully (scool93535)

I'm thinking of an under drive pully for my next mod. Seems to me that just reduces the accessories load on the engine right? It shouldn't affect tune / A/F mix, etc..

Somebody jump in here if I'm worng please. :cheers:
Yes it will make a difference. When I put my big bore in a couple of weeks ago I removed it b/c my alternator could not keep up w/ my stereo. If you do not have a high end system then go for it. While you are there you might as well do a cam as the pulley is most of the work. :yesnod:


[Modified by C5-VERT, 12:31 AM 11/3/2002]
Reply
Old Nov 3, 2002 | 02:02 AM
  #3  
scool93535's Avatar
scool93535
Thread Starter
Drifting
 
Joined: Aug 2002
Posts: 1,317
Likes: 0
From: Lancaster CA
Default Re: Under drive pully (C5-VERT)

If you do not have a high end system then go for it. While you are there you might as well do a cam as the pulley is most of the work. :yesnod:

[Modified by C5-VERT, 12:31 AM 11/3/2002]
Hummm! Most of the work huh? :confused: You wouldn't be BS'ing a BS'er would you? :jester

I'm a little leary of doing a cam without doing the heads at the same time. Thoughts on a cam with stock heads? :confused:
:cheers:
Reply
Old Nov 3, 2002 | 02:07 AM
  #4  
C5-VERT's Avatar
C5-VERT
Le Mans Master
Supporting Lifetime
20 Year Member
 
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
Default Re: Under drive pully (scool93535)

Umm, lets see. Before my big bore I installed a B1 cam + springs/retainers/hardened pushrods and an ASP underdrive pulley with a friend. Nothing to it. The steering rack is by far the hardest to remove. You have to remove it to get the pulley off so why not do a cam??? After the pulley came off we had the new cam installed in less than 20 minutes. The springs were more of a chore b/c we did not really have a good spring compressor. Overall about 4-5 hours total.

Put down 375rwhp(431fwhp) and 370rwtq w/ a mild cam. I would say it is worth it! Especially with a very driveable cam. :yesnod:

A decent cam will give you atleast 35-45rwhp depending if you have headers/ls6 intake/tuning, etc.



[Modified by C5-VERT, 1:09 AM 11/3/2002]
Reply
Old Nov 3, 2002 | 10:13 AM
  #5  
knkayotte's Avatar
knkayotte
Melting Slicks
15 Year Member
 
Joined: Jun 2002
Posts: 3,284
Likes: 0
From: I just killed your thread Redneck AZ
Default Re: Under drive pully (scool93535)

I just finished doing mine. My stock balancer had a wobble. It was strongly recommended that I change it out. I figured I might as well go with the ASP. I would not recommend doing this mod just for the heck of it. It is a real PITA to get the sucker out of there. I wish I had the money to do the cam at the same time. I’d take the recommendation of the others. Trust me, if you do only the pulley, it will be a long time before you’ll want to go back in to do the cam.

If I had to do it over again, I would not do all that work just for the pulley (I'd charge the cam on my credit card). :)

Later, Keith :flag
Reply

Get notified of new replies

To Under drive pully





All times are GMT -4. The time now is 03:13 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE