Rx-8 Compatible with Rx-7??????
 

Hey guys I am sorta new to the Rx7 and 8 deal, but I am already in love with the FD3's. I heard a rumor that the rx-8 6 speed transmission was possibly interchangable with the rx-7 5 speed. Is this True? is it not? and if it is True how so!

please get back with me cuz I am very interested in yalls comments.
thanks.

Clay

why would you want a 6 speed transmission?

i do not know, its just an option-if they were interchangeable or what not

i'm not sure if it's just a stright fit. but i suspect the ratios wouldn't be well suited to the FD turbo motor. Plus gearbox strength may become an issue


what's wrong with wanting a 6 speed gearbox???

interesting...
"i do not know, its just an option-if they were interchangeable or what not"
^ cause you think a 6speed is M@d k00l y0!..j/k lol

Six speed tranny? Knock yer self out yo! :)

http://www.rotaryextreme.com/fddrivetrain.html

If there was a way to add a sixth gear for cruising to our 5-speeds, that might not be too bad. Add a few mpg in the process. Unfortunately, when it comes to transmissions, I'm still in the dark.

A six speed is used for those who sish to have better fuel economy while doing 80+ mph. think of it as overdrive for the manual gearbox. Plus it gives you that once extra gear you wished you had when you raced that lil punk from down the way

umm so having 6th gear is better if you are racing? i mean is it better if your doing like high speeds cuz if you have 5 gear you wuld redline faster right? but if u had 6 you can go faster and not redlining it right? i have no clue how it works? lol soo my bad i hope you guys understand what i am asking

this can be either wrong or right

with a 5 speed and "longer" gears you wont redline any faster than someone with a 6 speed.


It all boils down to gear ratios.

I would say in keeping the same gear ratios, a 6th gear would only provide better fuel efficiency on the highway. I don't know anyone on here who has ever redlined 5th gear.

agreed.

That 6 speed greddy is sweet, if not to run you bankrupt.

6th is not put in for racing purposes, only fuel economy and marketing.

The FD is drag limited at high speed, and so you'll never even top out 5th gear.

This is covered some in the FAQ: https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

Dave