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Wankel anyone?

  • Thread starter Thread starter txironhead
  • Start date Start date
Would that bike be considered a "collectable"? How many did they make? I've never seen one before!!!!
 
Check this out:

http://www.suzukicycles.org/RE5/RE5-Rotary.shtml

What's really cool is the instrument panel. There's a flip-up cover over the gauges (not sure why). There's other interesting features exclusive to these bikes. They're definitely a collector item in my book. Just seeing the look of confusion on peoples faces when they see it would be priceless.

I've heard that Honda and a few others were experimenting with rotary engines for cars.
 
I grabbed a picture of this one, in slightly better condition, at the Slimey Crud run stop in Leland during the Galena rally:

P1010012.jpg


I didn't get to hear it run, though.
 
See Wankel Engine and Suzuki RE5 for an explanation and some background on the Suzuki.

Aha! Beat ya! ;-)

I bought a rotary engined Mazda RX-7, the first model of that sports car line when they were first available in late 1978. It was fast for its time, handled great and was a sweet runner. See Mazda RX-7 for info.

A buddy of mine had a few RX-7s. They really sounded like lawn mowers from outside the car when he got on it. ;-) Nice cars tho.
 
Thanks, simple design.
Phillip, I just bought some sintered brake pads following your advice.
Thanks
 
My Grand dad had an RX2, very different.. Early mazdas would always blow the apex seals from being over reved Could you imagine the look on your dealers face if you brought your RE5 in for service. They were ahead of their time, got bad gas milage, liked to eat spark plugs
 
Thanks, simple design.
Phillip, I just bought some sintered brake pads following your advice.
Thanks

You're welcome. :)

I think that you'll like them, particularly as their friction characteristics are more consistent over a wide temperature range, and they work a lot better in the rain. Brakes that didn't work well when first applied in the rain were considered a major shortcoming of the early GS's, and the sintered pads should help overcome that behavior. They should also last longer than organic pads. I'm using the Vesrah sintered pads. What brand did you buy? Pardon the mini-hijack.
 
I wouldn't mine having one, would make a great conversation piece!

RE5 Rotary 1974-1976 Specifications

Engine type: NSU Wankel-type rotary engine, single rotor, water-cooled housing and oil cooled rotor
Displacement: 497 cc
Power: 62 bhp at 6,500 rpm (48 bhp net at 6500 rpm)
Torque: 55 lb-ft at 3,500 rpm (45 lb-ft at 3500 net)
Compression ratio: 9.4 :1
Carburetor: Two-barrel, down-draft, 18-32mm automotive-style carb. Mikuni, 18-32 HHD
Lubrication: Dual oil system to lubricate the engine seals
Ignition: Dual ignition system
Starter system: Electric and kick
Transmission: 5-speed, constant mesh
Suspension: Front fork Telescopic, oil-dampened
Suspension: Rear swing arm Oil-dampened, 5-way Adjustable
Ground clearance: 6.7 inches
Front brake: Hydraulic caliper dual disc
Rear brake: Internal expanding
Front tire: 3.25H19-4PR
Rear tire: 4.OOH]8-4PR
Fuel tank capacity: 4.5 gal
Fuel consumption: 31-33 mpg
Length: 87.4 inches
Width: 34.3 inches
Height: 46.1 inches
Wheelbase: 59.1 inches
Weight: 507 lb dry, 552 lb fueled oiled and watered
Fuel tank capacity: 4.5 gallons US (3.7 gallon Imperial)
Fuel consumption: 31-33 mpg ("your mileage my vary")
Top speed: 176 km/h (110 mph)
Quarter mile: 13.9 sec, 93 mph
 
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A rotary will never be as efficient as a piston engine (too much internal surface area to absorb heat energy). Hot radiators only heat up air. Dan
 
I think that you would need the technical ability of Soichiro Honda and the wallet of Jay Leno to get that thing running.
 
Well, I never said it wouldn't be a challenge......

When you consider 60hp from a 500cc motor, especially one with older technology, it's not bad. A little tweaking and it could be a nice little screamer. Don't wreck it, though, cuz I have no idea where you'd get parts.....

I will agree that they're not as fuel efficient, but as a recent Toyota commercial said: If fuel economy was the most important consideration, we'd all be driving scooters. Besides, I wouldn't have a classic rotary as my main bike, more of a show bike that I could ride in parades, etc. or just to freak the guys at the bar out. I'd tell them I put a new "Z" motor into an old bike frame. Just might work, depending on how many beers they'd had.....

I don't mind the hijack....you might be able to put sintered pads on that thing.....

One thing everyone here has to agree on: rotary bikes definitely strike up a conversation!
 
Having owned a 1976 RE-5, new, can I chime in here?

The 1975 "star wars" version, good luck finding the instruement cover or tailight lense.
The 76 version was a better looking bike, imho.
As to finding parts, Mazda has some. Not many of the mechanics back then knew anything about this motor, let alone the 2 stage carb.
Some of the earlier models had sealing problems on the roters.
This was covered under warranty.
If you look at the specs posted, it was real fast and it was heavy.
And now in the $3 per gallon fuel it was a pig. Not very fuel efficient.

It did handle pretty well for it's size and weight.
The classic Suzuki black with blue pin striping still looks great today, mine was this combo. A very different bike, in all the years I've only seen 1 other one on the road, and that was in 77 or 78.
The sound is totally different from an inline 4.
My bro in law described it as a "quiet airplane" taking off.
It just revved and went.
Tourque was not a problem as a rotary has a fairly flat power band.
It's not peaky like other motors.
I sheared like 6 teeth off 2/nd gear drag racing it :oops:
And sold it/traded it in for a GS550 :-D

Definately a collector bike now, and for a select few. It's seems to be a
love it or hate it model.
As to mod's for speed, I don't know of any that you could do.
Short of adapting some Mazda parts, I know of no speed shops
that modify these.
The suspension, sure that can be modded,
but why mod something like this?
 
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