I have an 01 Cobra. It has 4.10's and I used to drag race it. (slow!) I now want to road race it more. Are the 4.10's OK or should I drop to say 3.73's. I realize the 4.6l motors need high rev's but are tje 4.10's too much/:lol:
Gears
- Thread starter Ricks2003Cobra
- Start date
nope they're fine. Just like at the strip where you want the car crossing through the traps just past peak power, on the road course you want it geared such that you're wound out as you enter the braking zone on the fastest straightaway.
I am still toying around with the idea of putting 3.73's in my car.
4:10's are perfect for your car!:thumbsup: :coolman: :beer:
I use 410's they are great for most tracks. Scott
I just switched to 4:10s last year .... Huge improvement. Even running Road America wasn't much of a problem with the top end .....
You will not look back with 4:10s doing OT ....
You will not look back with 4:10s doing OT ....
My '97 Cobra has 4.10 gears and I think their perfect for daily driving and would also be perfect for open track. (But it's the wifes car, so it hasn't been OT)
However I think 4.10's a bit much for a stock dia tire 03/04 Cobra.
Every time I research the best gear for my car for daily driving, OT, or drag racing on stock dia tires I always come up with the same answer: 3.90's.
So what is the best OT gear on a stock-boost Cobra? Like you guys said, you'd want to be around 6000rpm at the end of the longest straight you expect to go down. I say it's the 3.90's, (5th gear) what do you guys think?
9746C
However I think 4.10's a bit much for a stock dia tire 03/04 Cobra.
Every time I research the best gear for my car for daily driving, OT, or drag racing on stock dia tires I always come up with the same answer: 3.90's.
So what is the best OT gear on a stock-boost Cobra? Like you guys said, you'd want to be around 6000rpm at the end of the longest straight you expect to go down. I say it's the 3.90's, (5th gear) what do you guys think?
9746C
I like the car as it is geared stock really. For my needs at least. I autocross quite a bit as well as OT. The top of 2nd gear with 3.55's is perfect for this.
When on track with 3:55's, I like the idea that I can short shift to 5th on straights to cool things down....but the car still can pull hard in 5th if you choose.
When on track with 3:55's, I like the idea that I can short shift to 5th on straights to cool things down....but the car still can pull hard in 5th if you choose.
I believe my 01 came stock with 3.27 gears. The 03's came with 3.55's.
4.10's in a stock or near stock hp car is too much for a open track car that is on larger tracks. If I was running a 01 Cobra again, I would go with 3.73's rather than 4.10s. You cannot compare 00R and 03/04 Cobra gear choices against a 01 Cobra. They are just to different of cars with very different power numbers as well as power/torque curves.
Besides the above issues, the more gear you have, the more heat issues you will have in the differential. (get a cooler if you are going to continue tracking)
Besides the above issues, the more gear you have, the more heat issues you will have in the differential. (get a cooler if you are going to continue tracking)
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