Miata Turbo Forum - Boost cars, acquire cats.
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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   RX7 fd3s transmission in MX5 (https://www.miataturbo.net/diy-turbo-discussion-14/rx7-fd3s-transmission-mx5-16195/)

Reverant 06-10-2010 07:16 AM
Originally Posted by JayL (Post 582297)
How's this holding up now that you've been driving it for a few years?
It's holding up just fine and the car's previous dyno was ~380rwhp. Its getting a Megasquirt now and we are hoping for 400+rwhp at 28psi.

Dimitris

Reverant 06-10-2010 07:19 AM
Originally Posted by falcon (Post 582301)
Don't know why you would want an FD tranny. They aren't exactly known to be reliable. Ask me about my two broken trannys from my FD sitting in my shed.
I am working for a rotary shop, and so I am seeing my fair share of FC/FD gearboxes. Almost all FC gearboxes have syncro problems. FDs don't. The only FD gearbox that I've seen breaking was on a RX-8 swap (FD 13BT+FD 5-speed tranny), where the input shaft literally snapped. The gears were fine. Horsepower was ~500rwhp at 15psi.

Dimitris

gianic 06-10-2010 09:00 AM
500whp and 15 psi with which turbo Dimitris?

My rx7 fc tranny holds perfectly 28 psi with gt2871r but I have some syncro problems.Who cares.

Reverant 06-10-2010 02:33 PM
It's a Garret GT3582.

Dimitris

mackmiata 01-22-2011 12:18 PM
i have seen these trannies hold up to 600hp with ease..

mackmiata 01-28-2011 10:14 AM
I think I found a solution to the bellhousing issue with the Mazda TII transmission.

You may be able to use a TII tranny with a Ford Ranger 83-88 toyo-koyo bellhousing.
Its a 2.0 block and/or you can use the ranger tranny which has a longer input shaft but its internals are very similar to the mazda turbo style with the oil pan fins on the bottom,


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