Gains switching to Weld Wheels (or similar) - Third Generation F-Body Message Boards

Organized Drag Racing and Autocross Drag racing and autocross discussions and questions. Techniques, tips, suggestions, and "what will I run?" questions.

Gains switching to Weld Wheels (or similar)

Thread Tools Search this Thread
Old 12-31-2012, 01:33 AM   #1
Supreme Member
Thread Starter
iTrader: (1)
Join Date: Mar 2001
Location: Medford, Oregon
Posts: 3,245
Car: 1989 Iroc Z L98

Gains switching to Weld Wheels (or similar)

Hey guys,

What 1/4 gains have you seen switching from stock 16" Iroc (or similar) wheels to something like a Weld Drag Lite or Pro Star?

I google'd the topic, and it appears the stock 16" Iroc wheels weigh 22-24 lbs a piece without tires.

Weld Drag Lites would weigh 10 lbs each for the fronts, and 13 lbs each for the rears.

So 24*4 = 96 lbs for stock wheels
10* 2 + 13*2 = 46 lbs for Welds (20 in the front, 26 in the rear)

What type of gains would you expect to see making this switch on a 12-14 second street/strip car.
unknown_host is offline   Reply With Quote
Old 12-31-2012, 02:09 AM   #2
Supreme Member
iTrader: (1)
project89's Avatar
Join Date: Apr 2008
Location: Utah
Posts: 10,401
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's

Re: Gains switching to Weld Wheels (or similar)

i cant give u exact gains since i also made some other changes to the car but
on 16" iroc rims with a drag radial the car would 60' 1.85-1.92 .
when i swaped to a set of draglites and a 26x9 hosier slick the car would go 1.71-1.75 60' consistently with the same launch i would use on the 16" irocs and drag radial

i later swaped to a 28x10 slick on the draglites and it would slow down slightly in the 60 unless i launched at a higher bost level

so yes the weight difference will make a decent gain
project89 is offline   Reply With Quote
Old 12-31-2012, 10:59 AM   #3
Supreme Member
Join Date: Feb 2006
Location: San Fernando Valley, Ca.
Posts: 1,598
Car: 67 El Camino
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11

Re: Gains switching to Weld Wheels (or similar)

Tires weight less also
Figured about 9x lbs for my A body.
Would guess maybe a tenth tops but with less roll resistance could be more
Maybe someone with real before/after experience with slips can chime in.
cuisinartvette is offline   Reply With Quote
Old 12-31-2012, 01:40 PM   #4
Supreme Member
iTrader: (1)
jbenge's Avatar
Join Date: Sep 1999
Location: Danville, IN
Posts: 1,428
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42

Re: Gains switching to Weld Wheels (or similar)

I did the test way back when my car was running in the 12-13sec range and it was worth about .10-.15 sec and 1-2mph if I remember correctly.
jbenge is offline   Reply With Quote
Old 12-31-2012, 01:54 PM   #5
AlkyIROC's Avatar
Join Date: Jul 1999
Location: 51N 114W, 3500'
Posts: 16,444
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86

Re: Gains switching to Weld Wheels (or similar)

You're reducing unsprung weight. The rule is for ever 100 pounds you can remove from the car, you should be able to go 0.1 seconds faster. Removing unsprung weight has even more advantage.

Sprung weight is supported by the springs and is controlled by the shocks. Unsprung weight is dead weight. It's just along for the ride. Lightweight rims, brakes, diff etc all contribute to reducing that unsprung weight.

How much gain you get by switching to a lightweight rim will probably vary depending on the car. One of my 32x16 slicks mounted on a 15x15 rim is lighter than a steel belted radial.
AlkyIROC is offline   Reply With Quote
Old 12-31-2012, 08:42 PM   #6
BLACK92B4C's Avatar
Join Date: Jan 2002
Location: Franklin, TN
Posts: 195
Car: 92 B4C 1LE/2010 GT/2003 P71/2002 Z2
Engine: 5.7/4.6/4.6/5/7
Transmission: A4/A5/A4/A4
Axle/Gears: 3:23/3:73/3:23/3:73

Re: Gains switching to Weld Wheels (or similar)

Also don't forget where you are saving the weight...running the skinnies on the nose improves weight transfer to the rear when you launch. My 4th gen consistently picks up .15 - .20 with the skinnies on compared to 17" rims.
BLACK92B4C is offline   Reply With Quote
Old 01-04-2013, 09:11 AM   #7
Supreme Member
iTrader: (20)
Orr89RocZ's Avatar
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 22,968
Car: 89 Iroc-z
Engine: Twin Turbo 401
Transmission: TH400
Axle/Gears: 4th gen 12 bolt 3.42

Re: Gains switching to Weld Wheels (or similar)

I think i went 13.2's on irocz wheels and went 12.9 with drag wheels and skinnies but did have abit colder air... Dropped nearly 70 lbs total. I have to search my old posts here. I cant remember my mods. I know it was in the 13.4's with intake swap on my L98 and then added rockers and pulleys and was in the 13.2's range
Orr89RocZ is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Chronicles of a 9 Second Trans Am... Final Chapter Street Lethal Power Adders 383 09-17-2017 02:03 PM
Nitrous jet questions fasteddi Power Adders 30 09-02-2015 11:29 AM
1987 Camaro drag car for sale overdriv Camaros for Sale 0 08-20-2015 04:52 PM
[MD] 1990 Trans Am drag/bracket car with trailer Dialed_In Firebirds for Sale 2 08-20-2015 02:45 PM
Confused about turn signal parts Fronzizzle Electronics 2 08-09-2015 02:15 PM

Go Back   Third Generation F-Body Message Boards >

15x15, 17, camaro, gains, iroc, mutch, pro, rim, rims, ss, star, stock, weigh, weight, weld

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Featured Sponsors
Vendor Directory

1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92

All times are GMT -5. The time now is 10:41 PM.

All content copyright 1997 - 2014 All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of's Administrators. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: