does anyone else have them?

ive been getting pm's about them for a while now and it is making me really curious about them, i havent seen anyone sell them anymore. I believe mine were bought from rx7.com,

i love them, i even have the jdm transmission and it drops top speed down to 156, but i tried going 0-156 mph once and it went by pretty pretty quickly,
anyone else want to weigh in on them?

 

I'm running 4.30s and am very happy with the increase in acceleration.

 

what is your theoretic top speed with a 4.3?

 

Yea...what's your top speed? Cuz 156 ain't cuttin it for me...that's for sure.

 

According to the excel doc I downloaded a while back (JimLab thread maybe?) 5th gear at 8000 rpms with a 4.33 diff and stock wheel/tires tops out at 190.

If you had a J-Spec 5th gear (.806 vs .719 stock) and the 4.33 diff then you'd top out at 169.

 

I have 275/40/17 rears, and with the increase in rolling diameter my effective final drive was at a shitty 3.90. The 4.3s basically got me back to the stock 4.1.

 

GooRoo, would you mind emailing me that file? The944@aol.com

Thanks!
~Ramy

 

Ramy,

I emailed you a copy of the spreadsheet, just in case you didn't get it from GooRoo .

 

I know it's not exact, but from a 55-16 to a 45-17 should keep your overall diamater the same. By having a 40 series sidewall, your diamater should decrease a little.

 

4.33 mazda RZ gears. the best mod you can do to a auto.
Jeff

 

Thanks Richard and Andrew

 

well with the stock 5th gear my theoretical top speed is 164

not bad still but i love jdm 5th

anyone have any more info about the 4.77s?

 

Stock is 225/50/16 . Also don't forget about the 1 inch increase due to the rims themselves. I used an accurate spreadsheet, and my gearing went from 4.1 to 3.9.

 

yeah...my memory is shot.

Fair enough.