Notices
5.0L GT Modifications Placeholder for future motor based GT's modifications.

Which Gear

Old 10/18/14, 06:04 AM
  #1  
Member
Thread Starter
 
cjd223's Avatar
 
Join Date: October 11, 2014
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Which Gear

Now that I have 2013 GT automatic I am trying to decide which rear gear. I will ordering a MagnaCharger next week. So which would be the better gear, stock 3:15, 3:36, 3:55 or 3:73? Car will be my "play car" so MPG is unimportant. It will see occasional strip use with drag radials. Pretty even split between 1/8 and 1/4 mile. We do have a pretty active "street racer" group south of Birmingham.
Old 10/18/14, 08:06 AM
  #2  
Tasca Super Boss 429 Member
 
Five Oh Brian's Avatar
 
Join Date: November 14, 2007
Location: Pacific NW USA
Posts: 3,652
Likes: 0
Received 8 Likes on 6 Posts
Gears are, by definition, a torque multiplier. That Magnacharger will produce a ton of torque anyway, so gearing isn't nearly as important when forced induction is added. I'd suggest leaving the factory 3.15 gears in the car with the Magnacharger. If you end up not supercharging, I personally believe that 4.10 gears work nicely with the 5.0L automatics.
Old 10/20/14, 10:46 AM
  #3  
Mach 1 Member
 
awoychosky123's Avatar
 
Join Date: August 22, 2014
Location: Vermont
Posts: 545
Received 41 Likes on 37 Posts
^ This ^
Old 10/20/14, 12:07 PM
  #4  
Cobra Member
 
Jazzman442's Avatar
 
Join Date: April 7, 2014
Posts: 1,469
Likes: 0
Received 26 Likes on 25 Posts
Originally Posted by Five Oh Brian
Gears are, by definition, a torque multiplier. That Magnacharger will produce a ton of torque anyway, so gearing isn't nearly as important when forced induction is added. I'd suggest leaving the factory 3.15 gears in the car with the Magnacharger. If you end up not supercharging, I personally believe that 4.10 gears work nicely with the 5.0L automatics.

Agreed..
Old 10/20/14, 03:38 PM
  #5  
Mach 1 Member
 
GrabberBlue5.0's Avatar
 
Join Date: August 3, 2011
Location: East Haven, Connecticut
Posts: 700
Likes: 0
Received 4 Likes on 3 Posts
Shoot I've been 11.2 with my 3.15's and I'm N/A. Those gears work for me.
Old 10/20/14, 10:16 PM
  #6  
Member
Thread Starter
 
cjd223's Avatar
 
Join Date: October 11, 2014
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Think I will leave the 3.15 in place for now. I have some 3.36 gears laying around in the man cave somewhere. The 8.8 is pretty easy to swap gears. GB I am not sure how streetable your torque converter is N/A.
Old 10/21/14, 04:21 AM
  #7  
Mach 1 Member
 
GrabberBlue5.0's Avatar
 
Join Date: August 3, 2011
Location: East Haven, Connecticut
Posts: 700
Likes: 0
Received 4 Likes on 3 Posts
My converter is extremely street-able. You don't even know it's there until you mash the gas in which case my 295/55-15's go up in smoke.
Old 10/21/14, 06:27 AM
  #8  
Shelby GT350 Member
 
Coyote5-0's Avatar
 
Join Date: May 31, 2013
Location: Indianapolis
Posts: 2,151
Received 51 Likes on 47 Posts
Slap the magnacharger on there and then see how traction is and how quickly you go through 1st gear. If everything is fine, you may benefit from 3.36 or 3.55. I wouldn't change the gears and boost it at the same time. Just my 2 cents
Old 10/21/14, 06:28 AM
  #9  
Shelby GT350 Member
 
Coyote5-0's Avatar
 
Join Date: May 31, 2013
Location: Indianapolis
Posts: 2,151
Received 51 Likes on 47 Posts
Originally Posted by cjd223
Think I will leave the 3.15 in place for now. I have some 3.36 gears laying around in the man cave somewhere. The 8.8 is pretty easy to swap gears. GB I am not sure how streetable your torque converter is N/A.

annnd nevermind. lol I guess I should've read through the entire thread before posting
Old 10/22/14, 09:52 PM
  #10  
Member
Thread Starter
 
cjd223's Avatar
 
Join Date: October 11, 2014
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
The 2013 did not work out. Returned it. Little title issue. So here is my new one. Picked it up today. 2012 Premium auto loaded. Let the adventure begin.
Attached Thumbnails Which Gear-wp_20141022_001.jpg  
Old 10/23/14, 05:47 AM
  #11  
Shelby GT350 Member
 
Coyote5-0's Avatar
 
Join Date: May 31, 2013
Location: Indianapolis
Posts: 2,151
Received 51 Likes on 47 Posts
wait...what?? What happened?
Old 10/24/14, 11:23 AM
  #12  
Mach 1 Member
 
Krohn's Avatar
 
Join Date: April 11, 2012
Location: Houston, TX
Posts: 981
Likes: 0
Received 3 Likes on 2 Posts
You rebound fast! But it looks great! (Plus you got the better front end) lol
Old 10/25/14, 08:56 PM
  #13  
Tasca Super Boss 429 Member
 
Five Oh Brian's Avatar
 
Join Date: November 14, 2007
Location: Pacific NW USA
Posts: 3,652
Likes: 0
Received 8 Likes on 6 Posts
Originally Posted by cjd223
GB I am not sure how streetable your torque converter is N/A.

Like Scott said, these Circle-D torque converters are very streetable. I had them make mine flash to 5,000 rpm's. My car is a daily driver and launches hard at the track.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AMAlexLazarus
2005-2009 Mustang
2
10/15/15 11:06 PM
Rando
2010-2014 Mustang
15
9/30/15 12:28 PM
Airborne42
2005-2009 Mustang
0
9/24/15 10:27 AM


Thread Tools
Search this Thread
Quick Reply: Which Gear



All times are GMT -6. The time now is 04:22 PM.