Topic: thinkin of goin rotary...

[GrenadedToy]

i had an idea of putting a mazda 13B turbo rotary engine in my 85 toy. i did a search on here and didnt come up with anything. but what really makes me want one of these motors is that they only weight around 170 pounds, have a 13,000 rpm redline, and put out around 250 hp for stock. they may not be torque monsters but its nothing that dual cases cant fix right ? so if anyone has an info or knowledge on this engine i would like to hear it. im researching about it as much as possible. and i think it would be cool to have this in a toy because im sure very few to zero people have done this, just a chance to be different i guess. and i know i would have to switch trannies which isnt a big deal, you chevy guys do it so why not with a mazda? the only thing that would keep me from doing this would be something that would be impossible to get around. then in that case, i know where i could get a 5mgte in a complete supra for 1k. oooooh yeah

[Rocksurfer]

I've heard of this being done to Samurai's might want to check with those folk before putting it in a larger vehicle.

[GrenadedToy [OP]]

i read an article in off road adventures about a rock buggy that had a 13B turbo in it. thats where i got the idea to put one in a toy....http://www.4wheelpartsadventures.com/pastIssues/0505-issue/050507f-rotary-rocket.html

[Willy Mammoth]

Low end is what you want not top end.    Why not just go with a surplus helicopter jet engine they have more power the faster they go and won't redline at 13,000.

 

    Sorry, I just don't like those noisy things.

[81yota]

I dont think that swap is a good idea. As said above you do want low end power. Rotary motors are ment to be in the high r's and love to be rapped out. I hear great things from people have done chevy 4.3 swaps. Just some thoughts, good luck.

[yotaboy79]

i think it would be awsome but not the right choice for a wheeler

[GrenadedToy [OP]]

like i said i want to be different and not do what everyone and their mom has in their toys. i dont see why it would be a bad choice if that jake hollenbeck guy put one in that buggy. and last time i check rock crawlers crawl unless he rock races the thing..im just going to research more and ask on some RX-7 boards to see what a 13B turbo will run, im guessing a fair chunk of change. but the best part is i would have the fastest toy around here 8)

[Sundowner]

if you want to be different, then put a Cummins 4bta 4 cylinder in your yota.
biggest difference is the gobs of torque and getting 35 mpg

[KWP]

 There is a guy here in Oklahoma that has a mazda rotary in a buggy on mog axles. That thing kicks ass, it sounds like a pissed off hornet but it will go anywhere he points it.

[kneedownnate]

It really depends on how light your rig will be, because as previously stated they're dogs on the bottom, which would be a bad combo.  Anything heavier than a sammy is going to negate any top end advantage.  Top end power is only good if you can get it up.

[Prismo]

Like others have said, lots of revs but not a lot of torque. Another consideration, rotary engines get poor gas mileage. They are fun though.

[whiteman]

I have been thinking about a supra motor next winter, I thought about a 350, 4.3, 302, etc..    All those swaps are popular not because people copy each other, but because they work great for most people and are easy to do.  I don't think there is anything wrong with any motor as long as it fits your needs and your driving style.

I don't put my truck in low rang and crawl over large rocks,  I hold it to the rev limiter and drop the clutch to tear as much up as possible, that means a high revving motor is for me.  I also live in western Washington were it is always muddy with hills and holes everywhere so I need wheel spin, and a rev happy motor that obviously makes enough power up top, is not a problem, besides, high revs please crowds 

[kneedownnate]

Something to remember though, just because an engine likes to rev doesn't mean it will want to stay up there.  A lot of pipey engines will easily bog, even if you had it pegged already, given the right circumstances.

[black92se]

I guess that you are talking about an FD motor available in RX-7's from 93-95, that would be twin turbo and 225hp. You are talking about dealing with wiring issues like no other, and a great amount of $$. I have owned several RX-7's and they are alright, but I would not think about swapping them into anything heavier than a RX-7.

If you are not talking about an FD, then your HP numbers are way off. Porting a rotary will free up power at the top, but take it away at the bottom.

[gabriul]

ever think about one of those Cady 502 big blocks?
lots of low end torque but enough upper end power to still scew over the wilderness.

[BigMike]

Hey dig,

I think it would be really cool to go that route, and to shut up all of these torque-naysayers, install a Camden 13B Supercharger 8)

Just look at that!

click on image for full size

Nearly the same torque as a stock 22R-E