Rotary AE86?

[Apolan]

Just conceptually, what do you think about an AE86 with rx-7 FC engine and trannsmision?

The engine is light and smaller so it sits further back and helps the weight balance, it has just the right calvary (150hp), the gearbox is wonderful to replace the dodgy T50, and power delivery is smooth, its NA, hight revving, it has just the right amount of torque for such a light car.. might even throw a pair of FC calipers to help with bbraking.. looking at it from every perspective, the FC hachiroku seems ideal! Okay so fuel economy suffers a bit, but hachi is lighter than an FC, so it might be preatty reasonable?

What do you think of such a hachi?

[manipula]

It's been done. I remember watching a Youtube video somewhere where a rotary (may have been triple rotary whatever that mean technically) engined 86 absolutely batters a Honda of some form. Proper sh*t me that's fast moment.

[HybriD07]

the vid on youtube is indeed a 3rotor running a big ass turbo and about 600bhp.

I thought about this aswell, but the thing that put me off if something happens to the engine, cost would run very high and there are very few specialists in rotary engines in europe.

But your right, light small engines, plenty of power and a N/A rotary on itb's sounds . If you had the money to spend on a well built engine, then i'd say rotary all the way. But if you're a budget i think it would be hard.

Anyway i can be done and it will work great if done properly.

[speed-inc]

Yes it has been done before.

Here a link to a 20b:
http://video.google.de/videoplay?docid=-...q=ae86+20b

On Best Motoring American Touge is also one with a 13b conversion.
Can not say which episode it was and who has done it.
Best you watch it and then get at the tuner.

Cheers

[SekiguchiUeno]

small maybe, light? nope. the engine complete with box and everything is similar weight as 4age. if you want to put it back as possible transmision wont fit to tunnel, you re ending with cutting the tunnel nad firewall or move it more forward or down.
One rotary powered ae86 is almost finished here, i promise to post photos.
We waiting for fender flares to complete bodywork.
But its pure lowbudget trackcar, mostly made from loose bits, i supplied old hatch body for it. engine and drivetrain is from wrecked hillclimb FC3S turbo.

If you want to make an NA its maybe lighter (less accessories) but you cannot place it far back as you imagine without cutting. Also NA engines are not so goot supported with parts as NA has never been sold in japan and dont attract so much attention in tunning companies etc.

MUX where are you for explaining :wink:

[Apolan]

well naturally you'd have to do some fabricating and cutting, its a diiferent engine and tranny altogether. And im not talking about rediculous power outputsto make it a monster hachi or a driftcar, instead a balanced, better hachi.. say like a hachi type R, that would be a great alroun preformer? 150 hp from a NA 13b seem ideal, doesnt it?

i didn't know rotarys are so expensive??! i thought building one might even be cheaper than a otto-engine. but i really have no clue what im talking about here..

[speed-inc]

Problem with rotarys is that no one out here has a real clue about them except some people in the UK.

If you want to go with 150hp and it does not has to be a rotary then a 4ag 20v might be the better choice. You could still do some custom fabricating and get the engine more back and lower.

Cheers

[SekiguchiUeno]

yup speed inc is right,
Problem with rotarys is you need to know what to do to make it affordable, and another big problem is reliability especialy by tuned rotaries,
every old rotary i have seen had worn housing and , needen rebuild etc.

if you want 150ps and cheapo, better to buy sr20de+s13 gbox, much better fitting and less fabrication, or even tune your 4age.they last longer.
dont forget that you dont pass MOT with the rotary.

if you are still for rotarys contact Higgi from http://www.rx7.cz/
for questions about maintaining, buying tips etc..

[Apolan]

Well im just thinking about it conceptually, what kind of a car would that make. and in my mind it just works beutifully. Its not about going cheap, its a lot easier to tune the 4age for and aditional 20 hp. altogether i think (if done right) it would make such a neat car.

I dont know a great deal on wankel engines and specially not about ho it is living with a rotary here in Europe (attainability, servicability etc). But i cant shae the feeling that since rotarys are much simpler in design and they have alot less pieces in them, building one would also be simpler and cheaper no? And since i'm rebuilding my own engines from now on it seems, i think i could do that too, if i learn more about them.

I also think people are exagarating the reliability issue.. there might be a slight difference, but imo lot of the "wankel-fear" has come from the bad users, who didn't know how to handle and care for one?

I love the wankel design its so simple and straight-forward, and because of its properties it would make an idal swap i think. And the transmission is the sam unit as in the miata right? And miata tranny felt better than anything to me (honda s2000 aside ), replacing an important weakpoint in ae design..

maybe Mux could shed some light on this?

[SekiguchiUeno]

you are right in most things,
it will sure make neat car
its about peoples what they like or not,but respect the construction of this engine. i personally,dont like so much the rotary sound.
About relialibility its fact, its about owners, one can wreck this engine in 30t km another one lasts 200tkm, but thats apllies also for 4age only mileage changes 100 vs 350tkm maybe.

I agree with you.
Wankel less mechanical parts easy to build up but i am not sure if its also so easy and cheap to buy parts(seals, irons), lets ask Higgi.
About the box its longer and bigger than T50, if you want to have the engine at firewall you need to cut the body. Then you still have your shifter to far back. Turboed Rotary dont last as much as piston engine (apex seals) your better with premix(put oil in the gastank)to ensure good lubrication. That cost you your emisions and little bit power.
Ok but i am no profi about rotarys, that all i heard from first hand.
For track hachi would be my dream: bridge ported NA with 650cfm holley carb N2power for fraction of costs, simple and insane. but nothing for street or everyday use.