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

Need Gearing Advice

Thread Tools
 
Search this Thread
 
Old Dec 29, 2012 | 11:55 AM
  #1  
Crushercurtis's Avatar
Thread Starter
Teching In
 
Joined: Nov 2012
Posts: 9
Likes: 0
Default Need Gearing Advice

Complete noob here wondering what gearing is best. Car will be a daily driver, so mpgs are of some concern, but definitely want some decent acceleration too, after all it is why I'm LS swapping.

Car weights 3700 lbs. Will be powered by by an 01/02 ls1/t56. Front and rear tire height is 27.7 and 28.13 respectably. Car comes with a 3.09 open.

edit: had the tire sizes backwards

Last edited by Crushercurtis; Dec 29, 2012 at 12:16 PM.
Reply
Old Dec 29, 2012 | 11:59 AM
  #2  
HioSSilver's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Aug 2002
Posts: 6,128
Likes: 645
From: Winchester, VA
Default

4.10 or 4.30 with that tall of a tire and your weight.
Reply
Old Dec 29, 2012 | 12:08 PM
  #3  
Suprfast's Avatar
Staging Lane
 
Joined: Sep 2012
Posts: 71
Likes: 0
From: Stringer ms
Default

With the t56 456 or 411 will work great and still be torque monster.
Reply
Old Dec 29, 2012 | 12:27 PM
  #4  
Crushercurtis's Avatar
Thread Starter
Teching In
 
Joined: Nov 2012
Posts: 9
Likes: 0
Default

I think a 4.09 lsd is available for my chassis that's plug and play. Do you guys think I would still be able to get somewhere in the 20's for mpg's?

There's a guy with the same car running an ls6/4l60e with ported heads, Comp Cam and lifters. ported TB, and custom headers/exhaust running the stock open 3.09. He claims 23 mpg highway.

Tire size does seem a bit tall. I'll be running 295 35 20 rears on 11" wheels. Some versions come with 20x10's stock so I'm not that much bigger.
Reply
Old Dec 29, 2012 | 02:10 PM
  #5  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

20 mpg's on the highway shouldn't be a problem at all! With my HCI combo plus 4.10's I can still pull 20-22 highway
Reply
Old Dec 29, 2012 | 05:01 PM
  #6  
murphinator's Avatar
12 Second Club
iTrader: (2)
 
Joined: Sep 2009
Posts: 1,650
Likes: 1
From: southern Maine
Default

your a bit heavier than a 4th gen but that shouldnt kill your mpg , its not like its 4000 pounds.


what exactly is the car ? if its an old car you swapping in the bodys arent as aerodynamic , 4th gens are slippery , even next to a 2nd gen TA which I also own the windshield looks so straight up parked next to my 4th gen's and thats an f body , a 60's chevelle , 80's malibu , shoebox , etc... are more of a brick than a 2nd gen f body .

I see people with older swaps mention how much it knocks down their trap speeds compared to similar combo in a 4th gen.
Reply
Old Dec 29, 2012 | 05:26 PM
  #7  
Crushercurtis's Avatar
Thread Starter
Teching In
 
Joined: Nov 2012
Posts: 9
Likes: 0
Default

Coefficient of drags is .35 I think 4 gens are .33. But who knows after wheels and lowering etc.
Reply




All times are GMT -5. The time now is 05:04 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE