Notices
2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.
Sponsored by:
Sponsored by:

4.10's are in...

Thread Tools
 
Search this Thread
 
Old 03-22-2010, 01:10 PM
  #1  
Thrashard340
2nd Gear Member
Thread Starter
 
Thrashard340's Avatar
 
Join Date: Mar 2009
Location: CA
Posts: 423
Default 4.10's are in...

4.10's are in. They were installed a week ago. I have since put a little over 100 miles driving conservatively so I haven't had a chance to test it out under WOT.

Here are my observations so far...

1) The 4.10's are livable with the o/d. Mine is a 5 speed. At 70 MPH, RPMs hover around the 2100 range. At 75, 2400 RPMs and 80, 2900 RPMs. My main cruising speed is around 70-75. Driving around town, I am in 5th gear

2) Gas mileage did go down. It's not a huge difference, but it is noticeable. I would estimate around a 1-2MPG decrease, and again, my driving has been more conservative than normal.

3) I can feel the difference in acceleration. I am shifting early and often, but this was expected.
Thrashard340 is offline  
Old 03-22-2010, 01:18 PM
  #2  
soon2bu
2nd Gear Member
 
soon2bu's Avatar
 
Join Date: Feb 2010
Location: NJ
Posts: 275
Default

I was impressed with the RPMs at highway speeds, but was not too pleasantly surprised to find about a 2 mpg decrease when your driving MORE conservatively.

How much for the install? That's the only thing holding me back from them.

Be sure to update us when you actually try it out.
soon2bu is offline  
Old 03-22-2010, 01:27 PM
  #3  
Thrashard340
2nd Gear Member
Thread Starter
 
Thrashard340's Avatar
 
Join Date: Mar 2009
Location: CA
Posts: 423
Default

It was $550 installed. I knew the decrease in mileage would be a trade off. The original gears were 3.31, so it was a significant jump in ratio.
Thrashard340 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mtgldr
S197 Handling Section
5
02-03-2024 09:00 PM
junior04
4.6L (1996-2004 Modular) Mustang
1
09-28-2015 10:53 AM
stealth_GT
The Racers Bench
4
09-22-2015 02:19 PM
Kenta08
2005-2014 Mustangs
2
09-02-2015 10:33 AM
Figure8allday
4.6L (1996-2004 Modular) Mustang
6
08-22-2015 11:11 AM



Quick Reply: 4.10's are in...



All times are GMT -5. The time now is 08:36 PM.