Jeff20B

iTrader: (13)

Yeah, you can only just barely fit a 23A (12A based) 4 rotor in an FB. The 26B (13B based) would require some work to showehorn it in there.

B6T

iTrader: (2)

Of course it is... no one has ever made a side port 4 rotor. A side port 4-rotor would be impressive.

Jeff20B

iTrader: (13)

Not really. A peripheral port 4 rotor is impressive. A side port 4 rotor would be more difficult and the end result would be less power. Of course if you're into that sort of thing...

Kentetsu

dean23

i dont care what port it is.... put that monster in any car and it'll be worth it.

PercentSevenC

Agreed. A side-port 4-rotor is really only good as a novelty. Much better to go with ITBs and peripheral ports. I admit I'd be interested in hearing what a side-port 4-rotor sounded like, though.

j_tso

iTrader: (2)

What about that 4 rotor from Scoot that was made from 2 12As?

PercentSevenC

The Scoot 4-rotor is peripheral-ported.

Jeff20B

iTrader: (13)

Ok, you know how a peripheral ported engine, whether 2 rotor or 3, always sounds kinda similar to its side ported counterpart? Like how it retains its essential exhaust note character? Of course the peripheral port version is always louder/sharper due to the flow requirements and all that. This tells me that a side port 4 rotor will sound similar to a peripheral port, only much quieter and so on.

rotarygod

iTrader: (1)

I'm surprised no one has noticed that one set of fuel injectors is installed directly into the rotor housings themselves.

kutukutu1

iTrader: (5)

sick motor!!! thats all i have 2 say.

Jeff20B

iTrader: (13)

To be honest I didn't really look at it. I'm staying focused on the engine I'm going to be building with a friend.

steve84GS TII

[QUOTE=EpitrochoidalPower!;7803814]

Now you got me all messed up looking at the fuel system.......

I see injectors in the intake pipes,and injectors at the top corners of the rotor housings(dont know how they cleared the dowels/tension bolts with those).There are 2 fuel rails and two sets of electrical connections as well....pretty standard stuff except for the physical placement.

But then,on the other side I see what looks like a mechanical injection system, in what appears to be a direct injection placement (think, DISC II engines from the 90's).Theres even what looks like a Gilmer belt driven mechanical fuel pump feeding them.Can this engine really require that much fuel?......and why run two completely different delivery systems,except perhaps maybe he's super **** about redundancey......

steve84GS TII

I think I got it figured out.......its a dry sump engine.

The "injectors" I saw on the other side are lined up with the irons.......its an oil delivery system pumping directly to the gallery, from the belt driven pump.

Thats a seriously setup engine hes got there.

rotarygod

iTrader: (1)

The dowel would easily be cleared with the injectors there. Don't look at the angle of the injector plugs and assume the injectors go in at that angle. They don't. If you look very closely you can see the very tops of the bosses and that they are above the dowel area.

I think the pump on the other side is a dry sump system. The braided lines go into the plates and not the rotor housings which would seem to mean they have to do with the oil system. I wouldn't think you'd have problems fueling an n/a engine with 2 injectors for each rotor considering the size you can get today.

rotarygod

iTrader: (1)

Looks like you came to the same conclusion while I was typing.