Rear width? - LS1TECH

Log In 


Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

Rear width?

Reply
 
Thread Tools Search this Thread
Old 01-03-2008, 09:02 AM   #1
TECH Fanatic
Thread Starter
iTrader: (14)
 
TN94Z's Avatar
 
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Default Rear width?

What are the questions to ask when deciding on narrowing the rear? My car is track only and I am about to cut down a 9" and was just curious how much I should cut it down. Is it just a "what tire do I want to run" question? Or is there more to it than that?
TN94Z is offline   Reply With Quote
Old 01-04-2008, 05:27 AM   #2
EPP
FormerVendor
iTrader: (22)
 
Join Date: Mar 2003
Posts: 13,078
Default

Basically it depends on what wheel offset you are going to use, but narrowing the rear past three inches per side can get into relocating suspension parts. Bob
EPP is offline   Reply With Quote
Old 01-04-2008, 07:31 AM   #3
TECH Fanatic
Thread Starter
iTrader: (14)
 
TN94Z's Avatar
 
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Default

Thanks. I don't want to go that much.
TN94Z is offline   Reply With Quote
Old 01-04-2008, 09:38 AM   #4
LS1TECH Sponsor
iTrader: (33)
 
Steve Burger's Avatar
 
Join Date: Jul 2002
Location: Out on the farm in Central IL
Posts: 4,402
Default

Will you Mini Tub? That will have a large impact on wheel decision. Are you going to keep the stock rear springs and suspension parts? Again this will impact tire and wheel choice.
Steve Burger is online now   Reply With Quote
Old 01-04-2008, 10:45 AM   #5
TECH Fanatic
Thread Starter
iTrader: (14)
 
TN94Z's Avatar
 
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Default

I will be mini tubbing the car but want to keep the stock rear springs and suspension where they are for the time being. I plan to make around 900+hp depending on whether I decide to go turbo or nitrous. Right now I think I am going LSX 427 with a F1, but with the production halt on the blocks that depends. I have the stuff for a 408 with an 88mm turbo at a friends house that we thought about throwing in the car. Can you also suggest a wheel and tire size? I have been running the 275/60 dr's and want to make sure I have enough room to support future combos.

Last edited by TN94Z; 01-04-2008 at 10:51 AM.
TN94Z is offline   Reply With Quote
Old 01-04-2008, 12:28 PM   #6
LS1TECH Sponsor
iTrader: (33)
 
Steve Burger's Avatar
 
Join Date: Jul 2002
Location: Out on the farm in Central IL
Posts: 4,402
Default

Keeping the stock springs will limit what you can do. You could fit a 28x10.50 without the minitub. If you are going through the trouble I would dump the factory springs and perches and go a different way. Odds are you will need to cut that section out to minitub anyway.

At 900 HP I would look at a 29.5x10.50 at least. I know there are people that go 7's on a 28 or smaller. It ain't easy or cheap. A taller tire is more forgiving and easier to tune.

Just a few thoughts.
Steve Burger is online now   Reply With Quote
Old 01-04-2008, 12:36 PM   #7
TECH Fanatic
Thread Starter
iTrader: (14)
 
TN94Z's Avatar
 
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Default

Thanks. If I dump the springs and perches, what are my options?
TN94Z is offline   Reply With Quote
Old 01-04-2008, 01:34 PM   #8
LS1TECH Sponsor
iTrader: (33)
 
Steve Burger's Avatar
 
Join Date: Jul 2002
Location: Out on the farm in Central IL
Posts: 4,402
Default

I replied to your PM.It may be best to just chat a bit and go over options.
Steve Burger is online now   Reply With Quote
Reply


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 On
Refbacks are Off



All times are GMT -5. The time now is 11:57 AM.