Cobra gears...stock or mod?

[Woodysiphone]

I am putting pencil to paper and making a master plan for the 1997 Cobra. I am the 3rd owner and a few mods where done when I got it. I am trying to figure out if the gears are stock or a mod set. At 70 mph with the cruse locked in it runs at 2100 rpm's. My brother "and his bank" bought a 2010 slomaro SS and it is my mission to put a spanking on his new $45k toy with my paid off Mustang.

 

[Mystic SVT]

My car when it had the stock 3.27s turned 2100rpm @ 70 so it seems like you might still have the stock gears in place. Is the speedometer correct though? A lot of people do gear swaps but don't correct the speedo.

 

[Woodysiphone]

Yes I used my GPS to set the speed.

 

[Mntlkase]

stock 3:27's then. go 4:10 ftw!

 

[Shifty Powers]

Thats stock gearing... Go 4:10s, or 4:30s(alot of cobra owners end up switching to these after 4:10s)

While your at it, buy a new diff cover. Some 31 spline axels.. and maybe a new diff if u have the money.. may was well do it all and do it right the first time

 

[Woodysiphone]

It is my DD and I put 60 miles a day on it so 4:10 are out. I read about a 6 speed swap in Mustang Performance Mag they used 3:90's in the rear and with the 6th gear it was turning 2200RPM at 70 mph. The car had a turbo on it and they said the gear spacing was perfect to keep the rpm's in the best range for producing boost.

 

[got5.0]

a gear swap really does not affect milage as much as people think. A lot of guys on here have seen maybe 1 to 2 mpg less when running 4.10's compared to 3.08's or other stock ratios. Comparing that to what you get out of a gear swap, it really makes sense unless you are doing ALL city driving...

 

[Shifty Powers]

actually alot of guys get improved gas milage when doing a gear swap to 410s or 30s.. mainly cuz they do alot of intown driving and some highway.. but theyve gotten about 2mpg more

 

[duff daddy]

you only do a true gear swap when you go from stock to 488 or 5.13's

 

[vermilion]

all i hear from duff is whoomp whoomp whoomp. lol

 

[Shifty Powers]

^ you mean like charlie browns teacher?

 

[duff daddy]

all i hear from duff is whoomp whoomp whoomp. lol

go work on your air plane you sissy...

^ you mean like charlie browns teacher?

no like his sister sounds when shes gobblen my knob *ehug*

 

[vermilion]

its a fighter jet. yes, charlie brown's teacher. Duff, you are a sick man.

 

[Shifty Powers]

LOL duff.. hahaha..

So i take it ur a mechanic for them.. ever get a chance to go up in one?

 

[CanaryGT]

I am putting pencil to paper and making a master plan for the 1997 Cobra. I am the 3rd owner and a few mods where done when I got it. I am trying to figure out if the gears are stock or a mod set. At 70 mph with the cruse locked in it runs at 2100 rpm's. My brother "and his bank" bought a 2010 slomaro SS and it is my mission to put a spanking on his new $45k toy with my paid off Mustang.

Gears and a blower. Then stomp on his ass.