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Old 11-19-2011, 01:06 AM   #21
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The 5 speed is bad enough, I can only imagine haw bad the 6 speed is. What about John Shepherd, anyone ever contacted them?
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Old 11-20-2011, 07:01 PM   #22
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FM says they are building a T5 transmission housing for the Miata. I asked to be first on the list... If that takes to long, I'm going with a full race transmission $5,500.... With over 500 hp I'll need it.
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Old 11-20-2011, 07:14 PM   #23
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Quote:
Originally Posted by TNTUBA View Post
^^^ All well and good....unless you are concerned about the gearing in the 6 speed SUCKING^^^
Broken gearing or short gearing. I'll take the short gearing.
Or buy a R&P.
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Old 11-20-2011, 08:26 PM   #24
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When I talked to FM a few weeks ago about the T5 I asked about their timing for it and was told not to wait on it.
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Old 11-20-2011, 09:01 PM   #25
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Everything else I've done is top notch so I guess I'll drop the money on the best.
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Old 12-03-2011, 01:04 AM   #26
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Hello from Chile ¿Why don`t try using RX7 TurboII transmision?
I use it on my 265rwhp Miata 1.6 and never had any problem.
You just have to make the plate adaptor, weld some mounts and cut the driveshaft.
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Old 12-04-2011, 04:18 AM   #27
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If my car actually made some kind of real power, mine would look like this after the first hard pull. My trans sounds like a soup can full of marbles when I am fully on or off the throttle. Go me, running it dry with no oil for 10 miles. It's held up for 3 years since then though.
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Old 12-04-2011, 08:01 AM   #28
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I guess I should be knocking on wood. I've been beating the **** out of my 5spd with just shy of 300whp, track days, hill climbs, drag racing etc. and so far no breakage.



Quote:
Originally Posted by johnT View Post
Hello from Chile ¿Why don`t try using RX7 TurboII transmision?
I use it on my 265rwhp Miata 1.6 and never had any problem.
You just have to make the plate adaptor, weld some mounts and cut the driveshaft.
That's what the RX7 transmission in my garage is for. Once my 5spd decides to give up it's ghost, which is only a matter of time... I'll make the RX7 trans fit. It's an FD trans, but the gearing is awesome. My fav gearing on a car ever (on my old FD) at the track.
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Old 12-04-2011, 08:57 PM   #29
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I'm going to try this:

http://www.motoiq.com/magazine_artic...nion-gear.aspx


At least cryo and shot peening. I haven't decided 100% on WPC or not. It couldn't hurt, but it would cost several hundred dollars, and I don't know if I want to put that kind of cash into a trans that may still be a time bomb when I'm done with it.
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Old 12-05-2011, 12:17 PM   #30
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I don't understand why after all that work, they didn't remove the bearing? Seems stupid.
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Old 12-05-2011, 01:08 PM   #31
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Because the cryo and WPC treatment helps the bearing just like it helps the other working surfaces. I won't argue that it seems sloppy not to pull it off and treat it separately, though.
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