Bullet2012
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five firing cycles per revolution
maybe you are onto something
http://www.ilmor.co.uk/capabilities/5-stroke-engine
five firing cycles per revolution
I rebuilt 2, one was an rx8 the other a 2.1 I think really early rx7 engine on carbs
maybe you are onto something
http://www.ilmor.co.uk/capabilities/5-stroke-engine
I've never pulled one down, but I've worked on an rx-7 turbo inlet/exhaust manifolds, and also an rx-8 engine change.
Now every time I heard or read the words "rx-8 engine" I'm TRIGGERED The worst damn engine design I've ever seen or worked on in the world! So many stupid little vacuum lines! So many stupid little flaps and actuators, all to try and get a measly couple of lb-ft of torque out of a stupid pointless engine! An inlet manifold design that has to be put back together in the engine bay in precisely the right order, or you can't get access to stuff to slacken/tighten! A tiny and admittedly nice COG engine block, surrounded by another half ton of stupid components!!!
It would be OK, it's a novel engine, but it doesn't even drive all that great! No torque, bang-average power with no real option for more, abysmal fuel consumption, and has to be treated properly to last the mileage!
At least the rx-7 had power and torque, with it's turbos, and modified easily. It drove like a beauty. And you could simplify the vacuum hoses etc to the point where it was quite a simple and tidy looking engine.
You can't even fit a turbo to the Renesis engine... well you can, but you'll fast run into problems, due to poor exhaust port and seal designs!
If Mazda had had the foresight to put a normal 4-pot turbo or even another turbo rotary into the rx-8, the horrendous depreciation and almost universal lack of love would have been softened. As it stands, after seeing my cousin bitten with his rx-8 r3, I can't think of a worse used car to buy. Unless you bought it specifically to fit a normal engine to
What gave you that idea?I get the feeling you dont like them?
It's in the engineering museum at Heltenau in Germany, and they told me (I think..bit of a language barrier..) that it is a relic of the NSU training course for car mechanics
Well, they're not taking any chances on someone reusing it, someone's filled in some of the teeth on that internal gearset with weld.
Showing my ignorance but what is the arrangement in your illustration? Is thst how a Rootes blower works? Or a Hydrovane comp. maybe? Im getting rapidly out of my depth here
I seem to remember doing some work on Commer 2 stroke trucks many tears ago. Didn't they have twin or was it three cylinders, each with two opposing pistons connected to one crank with a load of levers?
The Rootes blower which I think they used, (again if my memory is correct) were fairly simple with a couple of interlocking opposing twin 'Lobes' spinning round in the housing.
You needed a respirator to start older ones. They smoked like hell when cold. Even worse than a Gardener engine! They revved more than a chainsaw but were not that powerful unless you kept the revs up.
Malc
There used in some tanks too. I believe they are very unfussy about what they will run on too.
If you mean the holy Gardner, how dare you, wash your mouth out with soap and water!....
You needed a respirator to start older ones. They smoked like hell when cold. Even worse than a Gardener engine!
Malc
If you mean the holy Gardner, how dare you, wash your mouth out with soap and water!
That's not necessary, lol
I love the Gardeners probably as much as you. A lovely engine that goes on and on and on .....and on . . . . and on .
However, All the ones I've played with - mostly in Foden 8 leggers sounded like a clapped out banger and smoked like one to when first started.
Give them a couple minutes or so to warm up and they were running silky smooth with no smoke.
A legendary engine! A classic engine,
Malc
I thought I was being flippant and having a laugh about rotary powered Ladas..