infernosg's S5 N/A Build

infernosg · \r\n \r\n \r\n 06-04-2013, 09:17 PM\r\n \r\n \r\n

Quote:

Originally Posted by infernosg

Maybe other transmissions are different but the Mazda "Type M" really isn't all that bad. The hardest part is having the right tools and keeping track of everything. Speaking of keeping track of everything, here's the entire gear set exploded:

Something interesting to note; the Miata 2nd gear is double-synchro'd:

Another odd difference is the RX-7 reverse gear is straight cut whereas the Miata is helicall.

I've also got the housings mostly clean.

If the weather ever warms up I'll finish scrubbing these and slap on a few coats of paint.

The input shaft is with a machine shop to be modified (also modifying my RX-8 rear stationary gear). While I wait for that I'm debating swapping the RX-7 5th gear over to achieve a taller 5th for highway driving. Because of the Miata input and countershaft differences the ratio bumps up from .697:1 to something like .75x:1, which is still better than the .814:1 of the Miata. It's not like I'll ever go into 5th on the track anyway.

Shine body parts will arrive tomorrow as well. It's going to be a busy couple weeks

Let me know when you are doing that because I need to get my rx8 stat gear machined too, prob couldn't hurt to have them both done at the same time, maybe help split the cost. Do you have a stock rear stat gear for them to setup the chuck/mockup the bit for?

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