Curious,



I have to get a new or rebuilt tranny, my 2nd and 5th gear syncros are just fried. Way past the redline synthetic and rev matching. I need a tranny that can just shift.



I got a 13b N/A with holley set up. Maybe 180-190 horses. Is there an advantage to going to a TII tranny or a Miata tranny?



If so what are the mods I would have to do? Shorten axel or lengthen? Are the any of these trannies lighter or heavier than any of the others? And I'm assuming a miata tranny is probably very costly huh?



Thanks,



Craig

 

I'd get the Miata tranny unless you're planning on doing a TII swap ever. The 6-speed close ratio transmission would really help your acceleration.

 

The miata tranny handles as much power as a the na one so as long as you keep at a hp range that it can take itll be fine if not youll need the TII one. If you run your car that hard you may want to just get the tII one anyway.

 

You can buy a TII tranny for less than $100. So why not find one that works and just throw it in?





Gregory

 

Haha!



Yeah? WHERE! And how many miles?

 

Will the miata tranny bolt straight in to an s4?

 

Will the t2 tranny bolt to the s4 block? I'm sure there is a faq about it somewhere, if so, please point me in the right direction! Thanks

 

and are all miata trannies 6 spds?

 

Maybe in your world of "physics means nothing" you can get a TII tranny for $100, but here in a place I like to call the real world, you cant get a good one for less than $200.



On top of that, you dont just throw it in. You also need to "throw in" a TII flywheel, clutch kit, slave cylinder, starter, driveshaft, rear end, and halfshafts.

 

I guess I can answer the main question. If youre only making 180-190 hp, you could get away with a S5 n/a tranny unless you drive like me. In which case, youll need a TII tranny. The Miata guts bolt into a n/a case, and uses the same clutch as the n/a, as well as the driveshaft. That tranny has been rumored to take about 300 hp, but I havent had a chance to try to break one yet.