My Rotary to suby swap! The saga begins page 6, Test fitting the suby- Intake flip issues? Options

[JRust]

Okay so this is my latest find. This is a 74 with a 13b Rotary motor that was built by Racing Beat in CA. Looks like they were in Anneheim. Not sure if they are still around. Guy bought it in similar condition to selling it. When he bought it the motor had overheated. He took it to Racing beat & had it completely rebuilt. Said it was pushing 220hp but only got 5mpg. I know rotary's came in rx-7's for the most part. Thats about the extent of my knowledge of the rotary. The guy has had this sitting in his garage since 99 when it overheated on him. He said it won't run but will turn over. I'll get more detailed pics of the fron radiator setup with oil cooler. Take a look at the motor pics. Defintely looks to have been a pretty hot motor. Kind of figuring to go Suby with the TDI conversion as a possibility.

Anyone looking for a project I have like 3 cars I will be getting rid of (IMG:style_emoticons/default/biggrin.gif) .

Anyway take alook at the pics & let me know what you think. Paint code is l64k which is a forest green. Obviously it was repainted some shade of red/orange

[charliew]

I always like the rpms of the rotarys but remember the gas guzling of the little rotary pickups of the early ones.

So will 4000.00 build a complete 250 hp na rotary? or would that hp level need a turbo?

[Rotary'14]

I always like the rpms of the rotarys but remember the gas guzling of the little rotary pickups of the early ones.

So will 4000.00 build a complete 250 hp na rotary? or would that hp level need a turbo?

Yes I believe you can build a 13B with 230~250 at the motor, with that budget. These engines are called Bridge Ports. They have a lumpy idle that sounds pretty cool to me. You can get away with running a Weber 51 IDA (modified 48) or a Holly 650 double pumper. IF you go FI, your drive-ability will be much better but peak HP won't change too much. Hell I read that Racing Beat has built a 300 hp N/A race engine called a Peripheral Port that they have dyno sheets for. You might not like how it idles because it's pretty high strung. Bridge ports and Peripheral ports don't like to be muffled. Street ports can tolerate some mufflers.

Racing Beat
http://www.racingbeat.com/FRrotary.htm

Mazdatrix (more affordable)
http://www.mazdatrix.com/

Atkins (I don't know too much about them)
http://www.atkinsrotary.com/

some rotary discussion about max N/A hp
http://www.rx7club.com/showthread.php?t=420260
http://www.rx7club.com/showthread.php?t=40...age=1&pp=15

cool sound from the bridge port, the sound may sound tinny, but the lope is there.
http://www.youtube.com/watch?v=PCwJ0YheHMQ...feature=related
http://www.youtube.com/watch?v=8WUSLunulHE

my apologies to the "purist" out there, but why are you reading this thread?

-Robert