Maestro

Also some light reading on the RX-01

here you will learn it has a multi side port motor too. the design has been @ Mazda since the early 90's

So what was it you said.......... Ummmm whatever ???

LOL

:P

Click the link below :D

]RX-01 Prototype


[QUOTE]Originally posted by Maestro
Ummm what does this look like to you ?

[/QUOTE

wakeech

losing some of the energy in the exhaust would be the last concern if you were dealing with different lengths on the headers: the length difference itself would alter the motor's characteristics more. but yes certainly a good observation, and the wrap does help the exhaust maintain its higher energetic state (that's why the RX-8's header is double skinned).

Maestro

For the last time its not coming out turbocharged !!!

Shhhheeesh!

:headsmack :evil: :loco:

maxcooper

I believe there are variable displacement pumps/motors that could be used to adjust the speed ratio between the pump input and motor output shafts. I have no idea if this is the control method that has been employed in the design of these systems or not, however. I imagine a variable-size orifice used to bleed fluid from the high pressure line could be used to similar effect as well. But I don't know if that is how they control the unit, either.

-Max

Ali

Coming, as I am, from the world of Type R and iVTEC, I can only hope and pray for a normally aspirated solution. Car magazine in the UK has already hinted at an enlarged (1.5 or 1.6l) rotary with circa 280-300bhp.

No boost build up, no whoops and whooshes, no lag, no extra moving parts to go wrong. Just linear power and instant throttle response in all situations.

There's something wonderfully pure about normal aspiration that suits the rotary, even more so than iVTEC.

MrWigggles

Ali,

I think the turbo/supercharger talk is in relation to boosting power in the current Renesis engine which will be in the cars that many (if not most) on this forum have ordered.

I don't think anyone would be dissapointed with a bigger rotor or 3-rotor engine if it became available.

-Mr. Wigggles

Ps. Forget 3 rotor, how about stacking two Renesis engines together sharing the same crank? 500HP hmm... (drool)

wakeech

...yeah, um, i think they'd do better than just 500

although it's a race engine, it's a 10 year old race engine: the R26B used a mechanically variable length intake tract, and made like 900hp (or something) at 9000rpm... :D

...anyhoo, a four rotor would really be only for a true super-car exotic, nothing that would ever trifle in an RX-7 (putting it out of the price range of anyone on this board).

Sputnik

That's about all I can come up with too, but the thing with that kind of setup is that it will eat up energy with that kind of restrictive method of adjusting flow rates.

---jps

Maestro

At least someone is listening. :D

its a 10mm increse in rotor width.

Maestro

R26B = 690bhp @ 9,000rpm

Also the R26B and concept MSP-RE both share one attribute 3 spaks per rotor

Sputnik

That hasn't been confirmed either. It's only been a suggested as a possibility. Noone has gotten any official word yet, and we haven't had any insider verification of any of the rumours either.

---jps

simonr

[QUOTE]Originally posted by MrWigggles
[B]I don't think anyone would be dissapointed with a bigger rotor or 3-rotor engine if it became available.

[QUOTE]

Can you have more than two rotors and still side-port?

Maestro

Yes the priciple of the rotary engine hasn't changed. Only the inlet port design has.

wakeech

...don't be so certain

Sputnik

Then show me, please.

---jps

TheSaCK

So how much HP boost are we talking about iwth a SC on the engine? would it hit 300 hp? and at what additionals cost. i much rather get a rx8 if it hits 280-300 than a maxima

RedRotaryRocket

Since the very first production rotary, the intake ports have ALWAYS been side port. The current production 20B uses side port intakes. I don't see why side port exhaust should cause any extra problems for constructing a three rotor.

lefuton

i guess the hard part would be to do the 3rd intake port on the new rotor, that's a bit more intake manifold to manage but assuming exhaust ports are the same on both sides of each rotor ... hrm now you got me thinking

Sputnik

That all depends on the setup.

The one thing that we have heard from known insider(s) is that the target for a Mazdaspeed version is a minimum of 300 hp. But a target doesn't mean that that's what will happen.

And we don't know the pricing, the timing, or the method, yet. We have some educated guesses, but no confirmation.

---jps