Does anyone know if it is possible to put the new renasis engine in a 2nd gen? Or where you could purchase one of these engines? (besides in an rx8)

 

I have no idea, sounds like a good idea though. What's the difference between the Renasis and the 13B anyway?

 

Call up your local dealership and ask.

or

Visit www.mazdatrix.com and price out all new parts/seals and assemble it yourself.

 

Oh, and anything will fit with enough money. It's NOT a bolt in affair.

 

The difference is about 100 hp and - 50 lbs! evidently its because they moved the intake and exhaust ports, plus it goes to 9 k

 

yeah but the engine costs more than the FC? If you really want to do this swap. Finance one get full coverage and strip the drivetrain and report it stolen. Only way to do it. Or shell out 8grand for the motor.

 

There's one one ebay right now for $5,000 - and the reserve is met.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2427451521

The guy bought an Rx8 - pulled the engine, and is dumping a 20b-t in there.

 

why would you?
be cheaper and better just to port the engine you've got wouldn't it?

 

well, the engine i have right now has about 175k on it and its starting to put out a little white smoke so i was just thinking why not go for the newest technology? Cheaper yes but better i realy doubt that. I could probably get maybe 200 hp out of a worked 13b vs the stock 250 of the renasis and it gets better milage and emisions too. Id bet with a little work the renasis engine in a 2nd gen would take a stock 3rd gen without the trouble of a turbo

 

Well swapping the "Renesis" would not be for the faint of heart. I dont think the motor mounts line up, and good luck hooking up the wiring. Oh ya and the throttle is drive-by-wire so there is no throttle cable, the throttle is monitored by the computer.


It would probably be a better idea to just swap the short block, and put your intake manifold on it aswell as the RX-8 exhaust manifold. I dont think this would mess up the ECU or if the intake manifold would even bolt up to the motor, but this is a motor from 2003 going into an 80s car, so good luck.

 

oh, he went ebay? my rotary mechanic knows that guy. he was gonna try to buy the motor off of him and possibly make it a new project. oh well i guess he didnt...

 

wow....already going for the 20b for the rx8...although if i were him....i'd keep the renesis and try putting that on a miata or something....wonder if that'll work?

 

i can't believe people are bidding $5000 on an auction by somebody with 0 Feedback... hope they do the transaction in person.

 

why? 13bt is 4x less $, 2x more power. and 10x less work

 

Amen Scot...I'm not one for turbos and all, but still it's kinda smart. Not to mention you could just use some of the renensis technology and remember it's still just a 13B with the same inards (new rotors...higher compression) and 30% larger ports. If you do the same to a 13B DEI you'll get results that are the same if not DAMN close (or better)...and it's EONS cheaper. Then again, some people just want to be original .

 

The ports aren't just bigger, they're in different places too. The exhaust port is in a completely different place than on an older rotary.

 

It's not about ultimate performance gains, or even about making sense. They do it because they can.

If there's the will, there's a way. Check that......
If there's the will, and the money, there's a way.

 

yeah some people just have to do things the hard way. Get your self a t2 swap and if you want to get exotic do a 20b swap but leave the renesis in the rx-8

 

hahah yea i was just at the dealer and the rx8 is going for 35 grand.... i dont think i will be seing that in the near future but as for the 5 g engine on ebay... realy tempting, if only it came with the ecu and all the other stuff i would need, i wonder how the trannys would bolt up... anyway im going to have to hold off on this one until i can get a lil more info.

 

oh yea and what doesnt make sence? the technology in the renasis engine leaves the 13b in the dust, they finaly REALY figured out the rotary engine, and your right about the ports they are on the front and rear on the block as opposed to the sides

 

i havent seen any 20b engines goin for cheap either, prolly come close to the ren swap.... how much power do the 20b's put out anyway? just cant get it all out at once haha

 

What I'd really like to see is a 20b powered cobra kit car. 2100lbs and 600hp? Seeya

 

doesnt the renesis have like no power before 6k, sry i think i rather keep some low end power, what little i have

 

gas mileage. its all about the gas mileage. hell the engine swap will pay for itself in gas money alone over the course of 50 years.

 

arent the renesis engines only dynoing at liek 180 or something? they arent living up to expectatins yet i dont think...u should go post this on the rx8 forum also...they might be able to help also...