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)
-   -   Choosing gear ratio. (http://www.dfw50s.com/showthread.php?t=3341)

re-rx7 12-23-2013 02:27 PM
Choosing gear ratio.
 
As it sits right now I have 3:31's but with the upgraded 20's It has fallen some. Judging by the Tire size calculator Im ruunng somehwere around 3:19's or so. I originally wanted 3:55's so with this difference Im gonna go 3:73's and hopeflly my ratio will end up somewhere in the 3:60's.

Any input on this? Im also buying OEM Ford gears and not Ford Racing as they are made by a different company. I can get gears and bearing brand new from dealer for $152.00.

03MachMe 12-23-2013 02:31 PM
Depends on your goal for the car. strip? autox? road race? roll race? I have 3.31 but with the shorter tires I will be running with my track wheels it ups my gear ratio right where I want it so I will likely not change mine.

re-rx7 12-23-2013 02:34 PM
Quote:
Originally Posted by 03MachMe (Post 59507)
Depends on your goal for the car. strip? autox? road race? roll race? I have 3.31 but with the shorter tires I will be running with my track wheels it ups my gear ratio right where I want it so I will likely not change mine.
Mexico mostly with very little Drag time. 3:19 is extrememly high and i hate it.

03MachMe 12-23-2013 02:37 PM
Quote:
Originally Posted by re-rx7 (Post 59508)
Mexico mostly with very little Drag time. 3:19 is extrememly high and i hate it.
then I would go with 3.73 if you plan to keep those wheels

re-rx7 12-23-2013 02:39 PM
Quote:
Originally Posted by 03MachMe (Post 59509)
then I would go with 3.73 if you plan to keep those wheels
I do for the forseeable future. Car takes awhile to climb the RPM band now. Its noticable.

Darkhelmet22 12-23-2013 03:19 PM
4.10s!

re-rx7 12-23-2013 03:47 PM
Jesus Christ!!!

Darkhelmet22 12-23-2013 05:46 PM
Quote:
Originally Posted by re-rx7 (Post 59514)
Jesus Christ!!!
No that's 4.30s. LOL

re-rx7 12-23-2013 05:51 PM
Quote:
Originally Posted by Darkhelmet22 (Post 59526)
No that's 4.30s. LOL
LOL I think 3:73 is more then enough.

Darkhelmet22 12-23-2013 05:57 PM
Quote:
Originally Posted by re-rx7 (Post 59528)
LOL I think 3:73 is more then enough.
I had 4.10s in my 5spd GT and they were awesome.

rlhay2 12-23-2013 06:13 PM
If your long term plans include a turbo(s), keep the 3.31s.
Otherwise, 3.73 is a good street, strip, 1/4 choice.

re-rx7 12-23-2013 06:27 PM
Quote:
Originally Posted by rlhay2 (Post 59534)
If your long term plans include a turbo(s), keep the 3.31s.
Otherwise, 3.73 is a good street, strip, 1/4 choice.
No F/I. Maybe juice later on but mostly motor.

Futwa 12-23-2013 11:49 PM
I'm in the same boat as you with 20's and 3.31's and yea....it take a while to climb. I'll be getting 3.73's here in the next month or two. If I get mine done before you I'll let you know how it is.

DirtyD 12-24-2013 01:03 AM
Quote:
Originally Posted by Futwa (Post 59554)
I'm in the same boat as you with 20's and 3.31's and yea....it take a while to climb. I'll be getting 3.73's here in the next month or two. If I get mine done before you I'll let you know how it is.
Just add boost, that will help it climb faster. Lol

DirtyD 12-24-2013 01:03 AM
Quote:
Originally Posted by Darkhelmet22 (Post 59530)
I had 4.10s in my 5spd GT and they were awesome.
That 3650 also had much different gear ratios.


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