Dallas Fort Worth 5.0 Mustang Club

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Dallas Fort Worth 5.0 Mustang Club (http://www.dfw50s.com/index.php)

- Performance (http://www.dfw50s.com/forumdisplay.php?f=30)

- - 3.31 vs 3.73 (http://www.dfw50s.com/showthread.php?t=1211)

red_baron06

02-27-2013 12:03 PM

3.31 vs 3.73

Quote:

Originally Posted by pohnjarker (Post 20682)

i have 3.73s but plan on going down to 3.27 since i went boost

We should just swap rear ends then hahaha.

pohnjarker

03-01-2013 06:51 AM

Quote:

Originally Posted by red_baron06 (Post 20864)

We should just swap rear ends then hahaha.

shoot, if i was home, i dont see a problem with that.

i'll be adding in an Eaton Limited Slip Differential as well since they will have the rear end opened for the gears.

Doug1227

03-02-2013 08:47 PM

<--keeping my 3.15's....

Dan12GT

03-03-2013 05:51 PM

This is kind of what I feel I might do next. I rarely have the car at 120+ and I am not going boosted or big power anytime soon, so I wouldn't mind ditching my 3.31s for 3.73s. No Jeff I don't want your 4.10s!

BLK2012GT

03-03-2013 05:54 PM

Quote:

Originally Posted by Dan12GT (Post 21243)

Want my 4.10's?

Dan12GT

03-03-2013 06:42 PM

Quote:

Originally Posted by blk2012gt (Post 21245)

want my 4.10's?

nope!

BLK2012GT

03-03-2013 07:20 PM

Quote:

Originally Posted by Dan12GT (Post 21260)

nope!

Yes foo

MidWest281

03-03-2013 08:18 PM

Quote:

Originally Posted by red_baron06 (Post 20488)

Have any of you guys arena difference when running the 2 cars against each other? I really haven't been able to find much on this. Will the cars run close or will one walk away?

there are a lot of different factors that come into play besides just final drive gear ratio.

the difference between the two is probably not that noticeable.

DirtyD

03-03-2013 09:38 PM

3.31 vs 3.73

Quote:

Originally Posted by MidWest281 (Post 21269)

there are a lot of different factors that come into play besides just final drive gear ratio.

the difference between the two is probably not that noticeable.

Even a couple hundred RPM over 3-4 gears could mean the difference.

Kosovobandit

03-03-2013 09:56 PM

Quote:

Originally Posted by Steve (Post 20598)

Have you had your car to the track yet? It seems a lot of people running the 3.73's complain about banging the rev limiter before hitting the traps, defintely more so with the cars making more than stock power.

I have been to the track with a 3:73 car that is non Brembo and no tune just a cold air/horrible driver. I do not hit the limiter and shift at 6,800-7,000. The non brembo cars with the 245/45 19 is a 27.7 inch tall tire which helps. The brembo guys have a 255/40 19 which is a 27 inch tall tire. That is part of the reason for the rev limiter issue. The 3:73 do get you in the band nicely.

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