correct rear gear

Old 02-14-2008, 04:51 AM
  #1  
nova2206
Member
MASTER JOURNEYMAN
Thread Starter
 
Join Date: May 2004
Posts: 43
Default correct rear gear

I have purcased a new car and want to know what gear would be better.The car is a square tube chassis Camaro that will weigh right at 2450 lbs with me in it, the motor is a sbc 383 stroker with about 650hp and I'm using a power glide with a 1.82 firts gear and a 55oo stahl converter..The rear is a narrowd 9 inch with a 31x10.5x15 tire..What gear would be best..??
Thanks
nova2206 is offline  
Old 02-14-2008, 06:55 AM
  #2  
OneBadGMC
Senior Member
RACING JUNKIE
 
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Default

Kinda need to know redline on the motor...

But, I'm thinking 4.88s or 5.13s.
OneBadGMC is offline  
Old 02-14-2008, 09:17 AM
  #3  
nova2206
Member
MASTER JOURNEYMAN
Thread Starter
 
Join Date: May 2004
Posts: 43
Default

I usually don't go any higher than 6800, shift at 6400
nova2206 is offline  
Old 02-14-2008, 09:29 AM
  #4  
Tod74
Senior Member
RACING JUNKIE
 
Join Date: Sep 2007
Posts: 4,137
Default

Originally Posted by nova2206
I usually don't go any higher than 6800, shift at 6400
5.14
Tod74 is offline  
Old 02-14-2008, 12:50 PM
  #5  
signsbyesa
Senior Member
RACING JUNKIE
 
Join Date: Feb 2004
Location: san antonio, texas
Posts: 1,233
Default

yea the 31" tire will work great with the 5:14 ratio :wink:
signsbyesa is offline  
Old 02-14-2008, 06:55 PM
  #6  
cncmotorsports
Senior Member
MASTER BUILDER
 
Join Date: Apr 2003
Location: Brookings South Dakota
Posts: 244
Default

Try this calculator http://www.richmondgear.com/101032.html
cncmotorsports is offline  
Old 02-14-2008, 11:52 PM
  #7  
cepx111
Senior Member
RACING JUNKIE
 
Join Date: May 2006
Posts: 2,044
Default

I would think where you'll be racing most would be a factor.
I.E> 1/4 verses 1/8?
If the 1/8 I would start out with a 513 and see what the motor likes, maybe up to a 538 or down to a 488 remember the more motor you have the less gear you need, but likewise the less gear you have the harder on parts it will be.
In the 1/4 I'd start out with a 430, or 456 and go from there to see what the motor likes and where the rpms are in the traps. But what do I know.
Goodluck, Charles
cepx111 is offline  
Old 02-15-2008, 04:46 AM
  #8  
Tod74
Senior Member
RACING JUNKIE
 
Join Date: Sep 2007
Posts: 4,137
Default

Originally Posted by cepx111
.
Racecar spelled backwards is, racecar.....

haha...never noticed that b4.
Tod74 is offline  
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


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -