----- Original Message -----
Sent: Friday, May 06, 2005 7:50 AM
Subject: [FlyRotary] Re: Static MAP
readings?
Not quite correct,
Rusty. My 2900 is a DCOE type (Throats are closer together - like 90 mm
center to center whereas the IDF type are more like 120mm) and has the 4
injectors.
Perhaps they have discontinued the 4 injector
DCOE type.
Hi
Ed,
When I
ordered the 4 injector TB that I have, I wanted one with the same bolt
pattern as the one I had (DCOE). I can't recall the details,
but for some seemingly good reason, I had to get a different style.
On the TWM
site, they still list a 2900-5004/L, which is a 50 mm 4 injector
TB. Perhaps they still are available. If so, it would bolt right
on to the manifold that Paul has. The only thing to watch for is the left vs
right hand differences. He'd have to figure out which one he has
now, and verify that the linkage would work out with the new one.
He's also have to cough up $410 for the TB, and another $200 for
injectors.
Paul, on
the MicroTech, can you turn off one set of injectors on the fly, like you can
with Tracy's EC-2? If not, what does having 4 injectors buy you as
far as redundancy? In other words, why do you want 4
injectors?
Cheers,
Rusty
Perhaps I
don't understand the way the injector firing works. I know that some
people had two injectors in their fuel rail (primaries) and used the two in
the housing as their secondaries. I was thinking that I could use two
injectors as primaries and the other two as secondaries. I believe the
secondaries kick in above a certain throttle setting? If set up like
that, wouldn't all 4 injectors be working at cruise throttle settings?
If so, if one injector failed, there would still be one injector spraying fuel
into one of the rotor housings, and two spraying fuel into the other rotor
housing, giving me some kind of redundancy. With my present system (two
injectors only), if one fails, that rotor will get no fuel at all. The
MicroTech ECU does have provisons for what they refer to as staged
injectors. Still learning. Paul Conner