Drag Racing Tech
Sponsored by:
Sponsored by:

What backspacing for a 12" wheel?

Thread Tools
 
Search this Thread
 
Old Jun 19, 2006 | 06:05 PM
  #1  
DopeFedZ's Avatar
Thread Starter
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (34)
 
Joined: Apr 2002
Posts: 5,231
Likes: 20
From: Houston TX
Default What backspacing for a 12" wheel?

My friend is gonna get his car minitubbed and narrow the rear about 3" per side what backspacing would be required on a 15x12 wheel?

Any help is appreciated. Thanks!


Carlos
Reply
Old Jun 19, 2006 | 11:09 PM
  #2  
CAMN HAWK's Avatar
FASTEST ALL MOTOR LS1 IN THE COUNTRY
iTrader: (4)
 
Joined: Dec 2001
Posts: 665
Likes: 0
From: Chicago, IL
Default

on my car i have narrowed the rear 5 1/2 " per side and i run the 15*12 with a 4" bs. it leaves about 1" clearance between the 28*10.5*15W slick and the billingsley offset lower control arms.
Reply
Old Jun 20, 2006 | 05:27 AM
  #3  
DopeFedZ's Avatar
Thread Starter
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (34)
 
Joined: Apr 2002
Posts: 5,231
Likes: 20
From: Houston TX
Default

Thanks man!
Reply
Old Jun 20, 2006 | 09:50 AM
  #4  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,355
Likes: 1,787
From: Chicago, IL
Default

Tom did you go 15x12 this year?
Reply
Old Jun 20, 2006 | 09:56 AM
  #5  
CAMN HAWK's Avatar
FASTEST ALL MOTOR LS1 IN THE COUNTRY
iTrader: (4)
 
Joined: Dec 2001
Posts: 665
Likes: 0
From: Chicago, IL
Default

i went to the 12 at the end of last year. it made the contact patch of the tire almost
2" wider.
Reply
Old Jun 20, 2006 | 11:01 AM
  #6  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,355
Likes: 1,787
From: Chicago, IL
Default

Why don't you take some pics and send them to me.
Reply
Old Jun 20, 2006 | 11:59 AM
  #7  
gator's 99TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Nov 2001
Posts: 9,971
Likes: 2
From: Tampa Bay
Default

why not post the pics.
Reply
Old Jun 20, 2006 | 05:56 PM
  #8  
CAMN HAWK's Avatar
FASTEST ALL MOTOR LS1 IN THE COUNTRY
iTrader: (4)
 
Joined: Dec 2001
Posts: 665
Likes: 0
From: Chicago, IL
Default

ill get some pics taken and post them soon
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Aug 6, 2006 | 10:53 AM
  #9  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,355
Likes: 1,787
From: Chicago, IL
Default

Still sending pics? It's August.
Reply
Old Aug 6, 2006 | 12:20 PM
  #10  
DopeFedZ's Avatar
Thread Starter
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (34)
 
Joined: Apr 2002
Posts: 5,231
Likes: 20
From: Houston TX
Default

I'll see if Madman has finished narrowing the rear for my buddy. He will be running a 15x12 with 4" b.s.
Reply
Old Oct 2, 2006 | 10:45 PM
  #11  
Most wanted's Avatar
Launching!
iTrader: (1)
 
Joined: Nov 2001
Posts: 204
Likes: 0
From: Chi-Town
Default

Quit your Jon
Attached Thumbnails What backspacing for a 12" wheel?-dsc00230.jpg   What backspacing for a 12" wheel?-dsc00249.jpg  

Last edited by Most wanted; Oct 3, 2006 at 12:34 AM.
Reply
Old Oct 3, 2006 | 06:42 PM
  #12  
Carbed4thGen's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Aug 2005
Posts: 674
Likes: 0
From: Chicago
Default

Now did that keep the lower control arm in the stock location still?
Reply
Old Oct 4, 2006 | 06:41 PM
  #13  
Lafngas98Z's Avatar
TECH Regular
iTrader: (1)
 
Joined: Jun 2003
Posts: 487
Likes: 1
Default

Originally Posted by Carbed4thGen
Now did that keep the lower control arm in the stock location still?
Thats what Im wondering? Im running a 315 60 15 Mickey drag radial, 3" narrowed per side and 5 1/2" back space. The tire is 1/4-3/8" from the offset control arm and 3/8-1/2" from the outside of the wheel well. How could a 12" rim fit? What tire are you running?
Reply
Old Oct 4, 2006 | 11:32 PM
  #14  
CAMN HAWK's Avatar
FASTEST ALL MOTOR LS1 IN THE COUNTRY
iTrader: (4)
 
Joined: Dec 2001
Posts: 665
Likes: 0
From: Chicago, IL
Default

yes the lca was kept in the stock location. the rear has been narrowed 5 1/2 inches per side. and i run the billingsley off set lower control arms. they clear the tires with about 1/4 inch to spare with the 28*10.5*15 W ET drags. the 15*12 with the 4 "bs
Reply




All times are GMT -5. The time now is 03:59 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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