Yeah my tranny was dying. It was a '79 5 speed that had far too many miles on it. 1st gear eventually stopped working and it would feel noticeably laggier each time I'd floor it. Like the bearings were fried and they'd heat up when running full power through them. I eventually located a ribcase tranny and it's been fine since. I suspect my mileage has improved to about 10 mpg.

100 percent improvement! take that federal regulations!

lol

The above mileage was calculated while it still had the awful exhaust and a stock Hitachi carb jetted to run too rich all the time for the thermal reactor to get a rich enough mixture to burn completely and all that. Since then I've gone to a collected RB header and a single 2" free flow system with a Camden. The exhaust is far too small for high RPM use (gonna redo it in 2.5") but the Camden can be driven in such a way that it improves mileage over the stock carb.

So if I had to guess what its mileage will be after the free flowing exhaust is installed, and the new engine, with the Camden, I'd have to say probably in the neighborhood of 15 mpg. Remember it's a heavy vehicle with a somewhat low geared rear end.

I did recently swap over to a light steel flywheel though, which acts like less unsprung weight, for a minor improvement is gas mileage. :)

^^^I think stock is rated at 15 city 21 highway

Heh yeah it may be rated for that but I doubt it gets that much in real life. A Renesis would be a serious contender in the REPU actually. They're somewhat plentiful now and would only need a few mods to make it fit the REPU bay.

Yes your correct about the 13A sharing the same rotor diameter as the 16X however its width is the same as the 10A at 60mm.

http://img29.imageshack.us/img29/9438/pc180002.jpg

Where did you find that pic?

I took that pic :)

whoa! you want to take a picture of the whole housing?

Sure thing

Here are some pics, and a video to hear the sound. :)

http://img695.imageshack.us/img695/4773/pb150107.jpg


http://img39.imageshack.us/img39/3021/pb150109.jpg

http://img39.imageshack.us/img39/6043/pb150110.jpg

http://img42.imageshack.us/img42/7168/p2210001o.jpg

http://img692.imageshack.us/img692/4...drivetrain.jpg

http://img189.imageshack.us/img189/8445/pc310094.jpg


http://www.youtube.com/watch?v=7TXBCQ4jFlE

video is marked private but those pictures are great! is that a running engine then? very badass!

The 13A is to the 16X, the same as the 10A is to the 13B.

http://www.youtube.com/watch?v=7TXBCQ4jFlE

where exactly did you come across a 13a anyways, I search everywhere and the best I've ever found is a blown 10a and a lot of blown pre rx7 12a's and 13b's

Back in 1991 I gifted the piston engine from my 1970 Mazda Luce Estate engine to well known local rotary engine builder Glenn Munro of Rotary Power Limited in Auckland New Zealand.

He "re-payed" the favour in 2008 by supplying me a 13A and trans at mates rates for my Luce RX87.

Less than a thousand 13As were produced compared to a couple of hundred thousand 10As so yes 13A engines are very very hard if not impossible to find.

The US only got the 10A in the R100 so 10A's are rare indeed in N.America

RX3 10A engines are still easy to find in Australia/NZ if you really want to get one. Cosmo and R100 10A's are getting harder now to find.

Have you searched Japan? 13A engines were exclusive to Japan only.