does S2 auto rear diff have 4.7
 

i'm looking for build a 4.7 diff for track car and used s2 auto diff are cheaper. i would also upgrade to OS Giken. Just need to know if they are 4.7

thanks,

The Auto was 4.30 only

https://www.mazdausa.com/MusaWeb/mus.../specs_RX8.pdf

Why not go with a 5.12 and call it a day?

https://www.ebay.com/itm/Mazda-RX7-R...hTM047&vxp=mtr

I wanted to do 5.1 but wasn't able to find a good source to get one.

They’re a bit rare now that Mazda Motorsport sold all theirs and didn’t reorder any more.


.

i've only been able to find them from japan for around $1500, but i'm not sure how reliable those sites are.

You mean aside from the link I posted above?

^ I contact him to see if he had 5.1, the auction was for 5.3

Real men run the 5.8 :rollingla

lol. he said he has the 5.8, would that require you to use 6th on some higher speed tracks?

Actually I fubar’d about the price earlier and now think it was a lot higher like $1200+

I ordered the one from the link above. $800 shipped. He said it made in China. So we'll see how it works out.

I just made a post in the DSP race thread about trans/rear gear combos. That gear with the Series 2 trans makes a nice combo on the track for a 70 - 130 mph range in 3rd - 5th gear

awesome. thanks.