'90 RX7 Project with '95 JDM engine $1400

NMNA:

http://charlotte.craigslist.org/cto/4849237833.html

Interesting... Personally I'd rather have a FC with a Renesis than a 13B-REW, but either one I'm sure would be an interesting challenge to get wired in properly...

If the car is otherwise complete, the engine doesn't need rebuilding, and it has all the proper harnesses/engine management to run the REW this would make quite an interesting Challenge car.

Ashyukun wrote: Interesting... Personally I'd rather have a FC with a Renesis than a 13B-REW, but either one I'm sure would be an interesting challenge to get wired in properly... If the car is otherwise complete, the engine doesn't need rebuilding, and it has all the proper harnesses/engine management to run the REW this would make quite an interesting Challenge car.

Why would it be hard to wire in? if you keep the ecu with the engine it should be almost as simple as just getting switched power, ground and fuel pump signal to the ecu? Use all the stock sensors and harness? What am I missing?

I guess maybe getting the FC dash to play might be tricky, but you don't technically need that.

Who wants to be on my challenge team if we start with this car? (Super serious).

Fc's use wire harnesses that are all over the place. For example, on S4 Na cars, the alternator and crank angle sensor are on a different harness that goes along with PART of teh front harness. The front harness connects to the chassis (dashboard harness). MOST of the rest of the sensors go to the ECU harness directly. However, the Turbo cars are different. Their harnesses are split differently.

Once you figure out which harnesses you need to mess with (which is somewhat difficult as shown above) Then you need to integrate the many wire harnesses into each other and make sure they play nice.

It is a bit of a clusterberkeley. However, if you aren't trying to make this a comfortable daily driver it shouldn't be that hard to get it to run and run well. You just might have some redundant wiring and some functions may not work as designed.

One task that will need completed is mounting of the engine and trans. The trans in the 3rd gen use a PPT sorta like a miata. I am sure there is a way to adapt a 2nd gen trans mount to make that work. Also, the 3rd gen engine is mounted alot differently than a 2nd gen. Much fabrication will be required. It does not look like this engine and trans is in properly at the moment.

rcutclif wrote: Why would it be hard to wire in? if you keep the ecu with the engine it should be almost as simple as just getting switched power, ground and fuel pump signal to the ecu? Use all the stock sensors and harness? What am I missing? I guess maybe getting the FC dash to play might be tricky, but you don't technically need that. Who wants to be on my challenge team if we start with this car? (Super serious).

As wv said, the wiring harnesses are a bit of a pain- though I suppose if being built as a Challenge car where you don't necessarily have to make everything still work on the dash it would be easier. Also right in that it looks like the engine/trans isn't fully installed, would want to get more on that from the seller first- that could be quite interesting. It apparently isn't too hard to find if you have the money- or can make all the measurements: http://www.banzai-racing.com/store/13B-RE_20B_engine_brackets.html

(Challenge rule aside: since those look pretty simple overall, I wonder: could you buy them, use them as a template to build your own from scratch for pennies, and then sell them at absolutely no hit to your budget?)

Would also need to make sure that the driveshaft would work since the FC and the FD have slightly different wheelbases. There's probably documentation of this around since this swap has been done before (Banzai Racing has links up to theirs in the previously linked page).

And if I weren't so far away, I'd be more than happy to be on your Challenge team (even with working on a car of my own to hopefully- finally- bring this year...), I rather miss my old S4 FC3C...

even for 200 that's not bad if the fit is great on the banzai pieces. Link says it does not work with the REW though...

As far as the driveshaft and trans mounting are concerned...

You could just use an FC turbo trans and clutch and bolt it up to the REW. I believe they are the same "gearbox" internally.

I bet the FD trans and clutch is selling for more than an FC trans and clutch anyway.

VERY good read on doing this swap: http://fc3spro.com/TECH/SWAP/FD3S/rew.html

All of this is just making me miss my rotary all the more...

They made it work in a Miata.

http://grassrootsmotorsports.com/forum/grm/i-like-this-idea-renesis-miata/99227/page1/