just a small vid after doing my 3:90 gears install, and exhaust set-up. the red mustang park at the end is pushing 900 hp, fully built 97mm turbo.

http://www.youtube.com/watch?v=pqwrH-8PzGc

 

Did you drop down to the 3.90 gears from 4.10 due to high RPMs at the end of the 1/4???

 

actually i had replaced my 4:10 with 3:73 before, but i wasnt happy with them thats why i choose 3:90 instead.

 

OK. More history please...
Why the original change from 4.10 to 3.73?
I recently changed from 4.10 back to 3.73 to reduce RPMs in 4th at the end of the 1/4. There is a pretty big difference between 4.10 & 3.73. Since you have had all three, how do you like the 3.90s as compared to the 4.10 & 3.73???

 

Nice choice on the 3.90's. My setup is similar to yours, and the 3.90's are a nice compromise for the n/a and nitrous combo.

 

ive been highly considering 3.90s lately. i will def choose a gear after my nitrous is complete

 

Nice! How do you like the 3.90s? Also, did I read your signature right? Are you cammed/150shot/longtubes?! How much power are you putting to the wheels on the sauce?

 

I would love to see how my car would act with 3.73's or 3.90's. I am topping 4th at 115 mph

 

step down from 4.10s............. I wish I did 4.30s.

 

thanks, i really like the 3:90s car feels like is always on the power band, plus it feels quicker out of the hole. i have stage 2 bullet cam from MHS, bbk lts, bbk x/pipe and a 125 , have to fix my sig. the car put down 278 n/a and 393/420 on the nitrous.