Mazda rotary Engines?

[Motu]

.

Has anyone also considered what you would use for a gearbox on a 13b in a bike?

AMC......or hydrostatic.

Mazda rotaries are really heavy for their size alright,like picking up an anvil.We used to say - size of a 4 cyl,power of a 6 cyl,thirst of an 8 cyl.....and the weight of all 3 combined.

[TLDV8]

oh yeah, maybe I'm confused, I was thinking Steve Spray was disqualled at IOM, er was it Trevor Nation, - see I told you I was confused!

The TulAris was retired a couple of years back after reasonable success.

I think they were the riders in the beginning with Steve Hislop according to the link taking the win in 1992.
I can't remember how Brian Crighton fit into it.He was part of the factory team perhaps and carring on with the Rotary when Norton pulled out.

The main problem with using a car engine like the Mazda is finding a suitable transmission to work in a motorcycle.You could retain a stock transmission with shaft drive but it is hardly sporty and would have a long wheelbase.

[F5 Dave]

Brian was the Tech genius behind the racing. The factory didn't really have the money but they still achieved good things. The was run as Rokon or summit for a couple of GPs. Brian can be found his twilight years in Classic Bike Magazine, not that I'm old enough to admit to reading it mind.

[McJim]

http://www.jpsnorton.com/history.asp

This link has some info on the JPS Norton rotary stuff.

[TLDV8]

Brian can be found his twilight years in Classic Bike Magazine, not that I'm old enough to admit to reading it mind.

I hadn't clicked to that,knew i had seen his name somewhere..I read CB,its jolly good stuff

Without pushing the thread off topic to much.

Haydn's Daihatsu Rat Bike.. I need one of those,a project for the never,never.The closest i got was trying to find an engine with no luck.

http://www.dieselbike.net/daihatsu.htm

[Mr. Peanut]

I came up with this idea ages ago. But do it with a 20b.

[EZAS]

A "1300cc rotary" isn't really 1300cc either...they are considered to be over twice that capacity in racing classes.
...and bungbung's right, modded Busa engines come in well over 400hp, although they are force fed from what I've seen.

That is with reference to Turbo's pfff anyone can squeeze Huge HP with a hair dryer.
A Peripheral Ported 13B can put out 320hp while a Turbo 13B can put out over 600hp.

I wouldn't mind seeing a single rotor 650cc engine but rotary's just don't work with 1 cyclinder. With two rotors it evens the load an produces more torque (as does a 20B compared to a 13B). The 13B is only 250kg.

Despite what people say, Fuel injected Rotary's are relatively reliable, provided you thrash them on occasion (I know from expierence).
I also wouldn't mind a FASTER, ROAD version of this:
http://www.coroflot.com/public/indiv...folio_id=33667

[TLDV8]

The 13B is only 250kg.

There is the problem in itself as far as a car engine,it alone weighs more than a complete motorcycle to start with.

I believe the Ghostrider Turbo Busa in street trim was 499 HP. (fwiw)

[imdying]

Waste of time. The GSXR1000 would still rape it anywhere but top gear roll on (whoopie)... the same as it did the supercharged 2.3L Rocket III recently featured in a UK sportsbike mag.

[TLDV8]

I came up with this idea ages ago. But do it with a 20b.

I came up with an idea of a circular device on the end of an axle once, but you know..idea's

The first step in any project is what you can and can not do and what it would take to be able to do the can not...Its gets easier after that.

[nadroj]

Wayne Curry from Taranaki (who now runs a blown alchohol hemi altered) built a Mazda rotary powered drag bike in the 80's with a sprint car clutch driving a 4 cylinder auto gearbox. Can't remember his 1/4 times but either launched hard or finished fast but not both at the same time.

[WINJA]

They Made A Norton Rgp588 That Was Pretty Fast , It Was A Rotary That Raced In The 500 Gp , It Started Life As A Cop Bike Or Something. They Had To Fuck Around With The Engine Rotation As The Gyros Were Making Wheelies To Easy

[TLDV8]

Wayne Curry from Taranaki (who now runs a blown alchohol hemi altered) built a Mazda rotary powered drag bike in the 80's with a sprint car clutch driving a 4 cylinder auto gearbox. Can't remember his 1/4 times but either launched hard or finished fast but not both at the same time.

Which reminds me of the Mercury V6 Outboard drag bike ..Earl Nunn ?

[vtec]

Yeah, putting a car rotary in a bike is definitely unfeasible, are they seriously 250kgs? That's way too much.

If you want huge power, and a feasible project, I met a guy on Sunday at Meremere, cause I was watching my mate Peter drag racing his Screaming Eagle. And there was this k5 gsxr1000, and I noticed through the side fairing, I could see what looked like a bit of blue samco hosing. So I took a closer look, and noticed that there was a cone filter cut through the fairing low on the left hand side... So I took a closer look down the side of the fairing, and noticed a turbo and custom manifold setup. I was suitably impressed.

Then I saw a guy walking over to me, turned out he was the owner. Got talking, and it turned out that he knew the guy that sold me my race CBR600 quite well. I also found out that once he got it dynotuned, it was putting out up to 250hp at the rear wheel (dependent on air temperature it had been as low as 240 on that tune), and that's with mostly standard internals. Bugger me, that's insane I thought. He also pointed out that it had been running like that for the last year, and he used it as a daily driver, and apparently Stroud had taken it for a blast around Puke. If I had the time, money, and inclination to do a project bike, I would probably just get in touch with that guy, and get him to walk me through a 1 litre superbike turbo conversion. Currently, I'm still having heaps of fun with the power of my supersport race bike.

[What?]

Rotary's started out in bikes. I don't know what make, but I know they did..

Rubbish.

The first Wankel-engined vehicles were NSU cars in the late 50's. Even Mazda's use of them pre-dated any motorcycle applications by several years, as did some light aircraft and snowmobile manufaturers. Suzuki, Van Veen et al got in on the action just as most of the rest of the world were realising that rotary engines were not the way of the future. Yamaha had one in the wings, but noticed that the RE5 very nearly consigned Suzuki to the history books, so it was never released.