3.73 gears advice - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 04-08-2009, 03:46 PM   #1
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
3.73 gears advice

I am getting my trac-lok installed FINALLY and to those of you who tried to warn me that I had the 7.5 inch rear end instead of the 8.8, thank you! The guy that answered the phone at ford had no clue what he as talking about... I'll never doubt you guys again!

So gears: I'm torn because with my other mods I should be able to hit 60 in the low 6 or maybe hi 5 second range, but I bought this car as a daily driver and don't want to do anything that will take the good mileage away, will those gears significantly lower my mileage or is it a subtle change?

It just seems pointless to have a v6 that gets bad mileage. Suggestions?
stangaroo is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-08-2009, 03:52 PM   #2
Registered Member
Regular
 
upton7's Avatar
 
Join Date: Jan 2009
Region: Illinois
Posts: 1,756
Re: 3.73 gears advice

some people say you'll lose 1-2 i think 3-4
upton7 is offline   Reply With Quote
Old 04-08-2009, 03:52 PM   #3
Registered Member
Regular
 
upton7's Avatar
 
Join Date: Jan 2009
Region: Illinois
Posts: 1,756
Re: 3.73 gears advice

but in town gas milage at contious take offs will go up
upton7 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-08-2009, 03:58 PM   #4
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

so maybe people that drive on the freeway all the time are seeing 3-4 MPG loss and people that drive 50/50 are seeing 1-2 MPG loss...

I'll just flip a coin.
stangaroo is offline   Reply With Quote
Old 04-08-2009, 04:06 PM   #5
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

is it a noticeable difference with acceleration? Like is there a WOW factor when you floor it? lol It's a 5 speed manual...
stangaroo is offline   Reply With Quote
Old 04-08-2009, 05:30 PM   #6
Registered Member
Regular
 
RyansQuick6's Avatar
 
Join Date: Jul 2008
Region: Louisiana
Posts: 394
Re: 3.73 gears advice

Hell I had 4.10's and didn't see more than 2mpg drop on the highway
RyansQuick6 is offline   Reply With Quote
Old 04-08-2009, 05:39 PM   #7
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

Quote:
Originally Posted by RyansQuick6 View Post
Hell I had 4.10's and didn't see more than 2mpg drop on the highway
was the difference in acceleration worth it?
stangaroo is offline   Reply With Quote
Old 04-08-2009, 05:49 PM   #8
Registered Member
Regular
 
Cobra GT's Avatar
 
Join Date: Nov 2008
Region: Louisiana
Posts: 201
Re: 3.73 gears advice

3.73 should wake your car up and not be bad at all on gas, go for it
__________________
1996 GT (sold)
1997 Cobra
1993 Ranger GT (not broke)
Want an 03/04 Cobra

Born:5/23/97, Build # 5722 of 6961 Builds
Cobra GT is offline   Reply With Quote
Old 04-08-2009, 05:54 PM   #9
Registered Member
Regular
 
RyansQuick6's Avatar
 
Join Date: Jul 2008
Region: Louisiana
Posts: 394
Re: 3.73 gears advice

well i have a 5-spd so the 4.10's were too short. It did make a big difference in acceleration though, you should really like it.
RyansQuick6 is offline   Reply With Quote
Old 04-08-2009, 07:29 PM   #10
Registered Member
Regular
 
upton7's Avatar
 
Join Date: Jan 2009
Region: Illinois
Posts: 1,756
Re: 3.73 gears advice

if you can afford it without it hurtin ur bank account i would say go ahead and do it
upton7 is offline   Reply With Quote
Old 04-08-2009, 08:08 PM   #11
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

it's done, I'm getting them. WOOHOOO!!!!

Actually I already bought them and they have been in my office for a week, but they're for a GT... have to send the damn things back now...
stangaroo is offline   Reply With Quote
Old 04-10-2009, 02:35 PM   #12
Registered User
Newbie
 
Join Date: Mar 2009
Region: Arizona
Posts: 18
Re: 3.73 gears advice

On my 07 V6 Manual, just pulled out the stock 7.5 and put in an 8.8 with 3.73 gears. I love it. Between the gears and the posi it makes a huge difference in the fun part of driving. Doesn't seem to be much difference in gas mileage. Just going by the MPG it displays on the dash and it's stayed pretty much the same. I've put abou 600 miles on it, about half and half city/highway. It runs about 2500 RPM at 75.
__________________
Mom's - 2007 V6, 5 Speed, Dual Exhaust, CAI, 8.8 with 3.73 gears, Stage 2 Clutch
1965 351C Dragcar Restoration in progress,
1966 289 Pony Restoration in progress
Son's - 2003 V6 4.3L Stroker with lots of goodies,
1965 Dragcar in progress,
1965 Restomod in progress
mxw1090 is offline   Reply With Quote
Old 04-10-2009, 03:00 PM   #13
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: 3.73 gears advice

3.27 to 3.73 should shave off about 2-2.5 tenths overall
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 04-10-2009, 03:51 PM   #14
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

Quote:
Originally Posted by SpectorV View Post
3.27 to 3.73 should shave off about 2-2.5 tenths overall
so if I can hit 60 in 6.2 right now, I should be able to hit 6.0 or 5.9? That would be pretty awesome for a 6!
stangaroo is offline   Reply With Quote
Old 04-22-2009, 05:59 PM   #15
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

Just got em installed and recalibrated the speedo, all I can say is AWESOME!

The launch from a stand still alone is worth it, (got posi and 3.73 together) even if you smoke the tires, you just back off a little and it launches HARD, i wrap up first gear in what seems like 2 seconds flat

5th gear on the highway seems fine and there's hardly a whine at all, downshifting from 5th to 3rd on the highway is freakin awesome, definitely worth the money!
stangaroo is offline   Reply With Quote
Old 04-23-2009, 08:21 AM   #16
Registered Member
Regular
 
SaleenFiend's Avatar
 
Join Date: Jul 2008
Location: Louisiana
Region: Louisiana
Posts: 2,318
Re: 3.73 gears advice

Quote:
Originally Posted by stangaroo View Post
so if I can hit 60 in 6.2 right now, I should be able to hit 6.0 or 5.9? That would be pretty awesome for a 6!
He meant 2-2.5 tenths in a quarter
SaleenFiend is offline   Reply With Quote
Old 04-23-2009, 03:10 PM   #17
Registered Member
Regular
 
The Darkside's Avatar
 
Join Date: Nov 2008
Region: New York
Posts: 1,176
Re: 3.73 gears advice

Quote:
Originally Posted by stangaroo View Post
Just got em installed and recalibrated the speedo, all I can say is AWESOME!

The launch from a stand still alone is worth it, (got posi and 3.73 together) even if you smoke the tires, you just back off a little and it launches HARD, i wrap up first gear in what seems like 2 seconds flat

5th gear on the highway seems fine and there's hardly a whine at all, downshifting from 5th to 3rd on the highway is freakin awesome, definitely worth the money!
hey im curious, when your on the highway, how far up does your car go on the rpms? cause at like 80 im hitting 3500, thats without gears. this question might not be valid because i have an auto
__________________
American Muscle forever!
i bleed Race fuel!
http://www.youtube.com/watch?v=o_FjllgR5-Y
The Darkside is offline   Reply With Quote
Old 04-23-2009, 03:13 PM   #18
Registered Member
Regular
 
SaleenFiend's Avatar
 
Join Date: Jul 2008
Location: Louisiana
Region: Louisiana
Posts: 2,318
Re: 3.73 gears advice

Quote:
Originally Posted by Ken Cheema View Post
hey im curious, when your on the highway, how far up does your car go on the rpms? cause at like 80 im hitting 3500, thats without gears. this question might not be valid because i have an auto
Correct me if I'm wrong, but isn't that really high? I never rode in the S197s but IDK.??

Is it in OD?
SaleenFiend is offline   Reply With Quote
Old 04-23-2009, 03:47 PM   #19
Registered Member
Regular
 
The Darkside's Avatar
 
Join Date: Nov 2008
Region: New York
Posts: 1,176
Re: 3.73 gears advice

Quote:
Originally Posted by SaleenFiend View Post
Correct me if I'm wrong, but isn't that really high? I never rode in the S197s but IDK.??

Is it in OD?
thats out of overdrive, in overdrive its at about 2700 as far as i remember
__________________
American Muscle forever!
i bleed Race fuel!
http://www.youtube.com/watch?v=o_FjllgR5-Y
The Darkside is offline   Reply With Quote
Old 04-23-2009, 03:58 PM   #20
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: 3.73 gears advice

I think its like 12% more rpm or something~ from 3.27 to 3.73~
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 04-24-2009, 03:49 PM   #21
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

Quote:
Originally Posted by Ken Cheema View Post
hey im curious, when your on the highway, how far up does your car go on the rpms? cause at like 80 im hitting 3500, thats without gears. this question might not be valid because i have an auto
That's really high, my gears put me at 90 at 3k, 60 at 2k, etc, and this is in 5th. I think my fourth gear would be 80 at 3500 maybe... It used to be that 80 was 2700 or so.

Basically, these gears make it so you multiply your RPM number by 3 and that's the MPH, so 1k in 5th is 30pmh, 6k is 180mph (yeah right, but in theory...)
stangaroo is offline   Reply With Quote
Old 04-24-2009, 03:51 PM   #22
Registered Member
Regular
 
stangaroo's Avatar
 
Join Date: May 2008
Region: California
Posts: 716
Re: 3.73 gears advice

Quote:
Originally Posted by SpectorV View Post
I think its like 12% more rpm or something~ from 3.27 to 3.73~
that's exactly right
stangaroo is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
NEED HELP WITH GEARS!! Motive 4.10 gears? Cant find ford racing? Camaro Eater Pre-2005 V6 Mustang 4 06-23-2010 11:57 AM
3:55 or 3:73 gears....Need advice vinnie7009 1979-1995 Mustang GT 27 07-13-2008 10:56 PM
advice roach 1996-2004 Mustang GT 4 05-16-2007 01:47 AM
desire advice... stock investment type advice... dark The Bar 4 04-23-2006 07:07 PM
Factory Gears Vs. Racing Gears tire Pre-2005 V6 Mustang 0 07-21-2003 05:02 AM

» Like Us On Facebook



04:16 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.