Rotary Conversion

[Lewis]

Has anyone got any info on rotary conversions into an AE86? Preferably 13b. Yes i know it's just about heresy. http://www.ae86drivingclub.com.au/forums/emoticons/tongue.gif

[yoshimitsu9]

dont get any idea about 20b, isnt going to happen unless u want to convert the car to LHD, exhaust protrudes on the steering rack or somthing like that

[Brendo]

dont have any info on it, if your goin to interbreed toyota, rotor is prob the best way to go tho

[us_ae86]

http://i73.photobucket.com/albums/i216/jgae8612a/_SC00556.jpg
http://www.ae86drivingclub.com.au/dcimages/4/8/4/3/129216.jpg

[no car]

i seem sum in jap books like carboy, they did a lil on it install

[jjoeworks]

If I was going to cut up an AE86 and put an engine in that didn't belong the only conversion I would feel confortable with is a rotary. I would NEVER do the Nissan thing but a Mazda rotary I think it would be good choise. When I was working at a workshop here in Brisbane a few years ago we fitted a 13B into a TA22 Celica. If I remeber it turned out really well and was easier than what I would imagine a 20valve conversion would be. It was carbureted and ran a points ignition so that side of things was kept simple. We used a Mazda RX7 5 speed gearbox and the biggest drama was making a gearbox crossmember. As I remember it was great on the road and went really hard.

Cheers

[Delazy]

[attachment=11726:attachment] [attachment=11727:attachment]

might cause abit of a uproar but.....
loves it...

fully built series 8 13bt sittin there http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

[Hen is a total nutcase]

13Bs are tiny (as you can see from the above photos).

Buy onewith box, weld engine and gearbox mounts up, get a custom tailshaft and your done.*

Hen




* Some glossing over of the truth done here, but I still think it's a simple-ish conversion. Only sticking point might be shifter position??

[Delazy]

13Bs are tiny (as you can see from the above photos).

Buy onewith box, weld engine and gearbox mounts up, get a custom tailshaft and your done.*

Hen

* Some glossing over of the truth done here, but I still think it's a simple-ish conversion. Only sticking point might be shifter position??[/b]

[attachment=11728:attachment]

[rthy]

well supra gearbox adapters are cheap as for rotors, so why not use a W55 and then be able to use a standard engine mount, standard shifter hole and an unmodified tailshaft. Imagine how easy that would be.

[Hen is a total nutcase]

Delazy - Nice tunnel. Is the RX7 box really that much bigger than a W5*?

Hen

[AE86slut]

Hen - Series 5 turbo boxes and the like do tend to quite sizeable...

As far as fitting a 13B goes, it depends on what model. Series IV engines onwards use side mounts which would probably be able to be modified to suit an AE86 crossmember, whereas the earlier 12As and 13Bs used mounts off the front of the oil pump cover. When fitting a Series IV or V engine to an old chassis like an RX2, 3 or 4 I used to just get my hands on an old 'front-mount' oil pump cover and whack it on, mating it to the old style crossmember. I can't remember if there was a specific cover to use, but 12A turbo rings a bell.
The SIV and V engines also used a mid-sump from memory, so likewise, I just used to use a sump off an RX4 13B or something. obviously the pickup will also need to be swapped to suit.

Low centre of gravity is one benefit of a rotary transplant, but if you are going to buy an engine budget a few grand for a rebuild as well.

Oh... btw - don't listen to all these other "cross-breeding" (lol!) comments. Variety is the spice of life, and a nicely tuned 13B will eat any 4AGE you're going to find on these shores. http://www.ae86drivingclub.com.au/forums/emoticons/laugh.gif

[Delazy]

Delazy - Nice tunnel. Is the RX7 box really that much bigger than a W5*?

Hen[/b]

lol...wish i could claim the work, but thats the orange raceflo sprinter

[fixeruperer]

hehe a crapy tuned 13b would munch a 4age but still yeh dont do it http://www.ae86drivingclub.com.au/forums/emoticons/smile.gif

[Lewis]

Thanks for all the help so far guys. Work will commence as soon as my boss' shed is up. Should start in about a month in other words. Looking at late model 13bt, but i'll see what i can find with low mileage.

[DRFTPG]

would be a good conversion as it wouldnt affect the balance of the car and the high reving rotor would be great for drifting

[Antdragonist]

sorry to dig up an old thread, but i'd really like the input of some experts on this
everyone on this forum is more than happy to give thier 2 cents (well some actually give you a few hundred bucks worth) on the topic of certain engine conversions in ae86s and how they can put more weight over the front etc, it's all well covered stuff, with the current batch of engine conversions that pop up these days, the majority involve larger, later model engines in older cars, so the topic of more weight in front end has been done to death.

what i would like to know is what happens when you take weight off the front end with a conversion similar to this rotor ae (well to be honest thats prob the only time you'l lose weight in an engine conversion, is when you go from piston to rotor), what sort of effects can you expect, i know it's all a bit 'theory with no practical work' but i'm interested.
as a guess i'd imagine you'd gain a bit more of a steering feel like a mid engined car, ok, so what i mean is lighter steering than would currently be a 4ag ae86, which sometime isn't a desirable thing...
any thoughts and input on this would be much appreciated..
thanks for your time
ed

[mikewestphoto]

How much weight are you pulling off the front? Drift car or circuit car?

There really won't be much difference in feel of car when you adjust the suspension to suit unless you remove lots of mass.

[paulie]

http://www.ae86drivingclub.com.au/forums/emoticons/tup.gif sik. not a huge fan of rotors but a very original idea, dont listen to all the narrow minded purist fags.. do it. a good rotor can b a fkn powerhouse of a machine!!

[stefan]

how much harder would it to be and put a 20b into a 86
?

[LAA_80E]

how much harder would it to be and put a 20b into a 86
?[/b]

^^^ Nightmare Job http://www.ae86drivingclub.com.au/forums/emoticons/biggrin.gif

You would have to convert the car to left hand drive because of the steering rack and the 20B can be a bitch to tune. Theres also the cost of a 20B and if you can find one.

Stick with the 13B if you want to do the conversion or start tuning that 4AGE http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

[Antdragonist]

How much weight are you pulling off the front? Drift car or circuit car?

There really won't be much difference in feel of car when you adjust the suspension to suit unless you remove lots of mass.[/b]

once the old donk is out i'll weigh them together, see the difference
it's gunna be doing mainly circuit, not competitively, so maybe 'street car' is more the answer.
and yes, i do realise with some adjustment you can get everything back to feeling similar to what it was, it'd just be nice to know what i'm going to encounter before i get there, can save a lot of time, a bit of direction is handy!
all good tho
see how it goes hey!

and somehow i doubt rego would be easy with a 20b!
they seem a bit sketchy about it even down here in tas

[rthy]

I would be interested to see what a 13B weighs, I am suprised that this converson isnt done more often.

[stefan]

13 can be remeved by 2 dudes with seatbelts and steel bar isnt heavy at all 1/2-2/3 the weight of a 4age
/
dont know exact weight but lighter than 4age

[floody31]

what i would like to know is what happens when you take weight off the front end with a conversion similar to this rotor ae (well to be honest thats prob the only time you'l lose weight in an engine conversion, is when you go from piston to rotor), what sort of effects can you expect, i know it's all a bit 'theory with no practical work' but i'm interested.[/b]

Good question. I'd like to know the weight difference, I'd suspect it isn't a huge amount though as the 4A-GE is a pretty light motor.

I keep thinking a PP 12A or 13B with a 51mm weber in my KE70 would do nicely, haha.

[Antdragonist]

do it!!!
i can organise the motor for you!!
cheaper than a hard tuned na 4ag, prob same lifespan but won't sound as cool!

[mitch13]

The coolest rotary I ever saw was an rx3. It had a 20b and a turbo of a 13ltr truck engine. Apparently they were trialing 20bs for plane engine becuase of how light weight and powerful they are, to unreliable though.

I reckon you should just stick with a 4agze or te you can still get good power out of them and a hell of a lot easier then going rotor.

just my two cents.

[robert nguyen]

i read a magazine a long time ago.. i think it was speed magazine.. it had a blue sprinter wit a 13B fink it had a huge REVS stick on its side.. go ask them for help dude...
love rotors!

[rthy]

I think I remember hearing about that car, if I remember correctly the guy said he built the car in the mag but then the brother of the real builder of the car on toymods i think let it be known he was bullshitting

[thanhngo]

If petrol consumption & reliability weren't an issue I would consider a 13B. Though the renesis may be a little better. I had to rebuild my engine twice and I didn't even drive it that much.

I just remember the good old days of spending $200 on petrol per week and that was at close to 80c / ltr. Still, nothing like a rotor on boost - it feels like a Jet.