Neil,
0n a P port, you want to have the throttle body as close as
possible to the rotor housing for an as low as possible idle RPM.
Mine idles pretty good at 2300 RPM. So any tuning intake length on
the intake will have to be outside the throttle body. However, the
TBI has a cone on the intake side with the reference pressure pick
up for the fuel pressure regulator included. It assumes that you
have an air filter attached to the TBI. Using a tuned intake
coming into the TBI, would have to have a continuing inside
diameter. In order to meet that you need to insert a filler to
eliminate the intake cone, which at the same time eliminates the
reference pressure pick up, physically and functionally. The
physical part should be obvious, but the functional part needs to
meet good old Bernoully's ideas. In order to avoid the high static
pressure drop in the intake pipe at high flow rates and with that,
lowering the reference pressure at the fuel pressure regulator,
the pressure pick up has to be moved to the inlet area of the
intake. It took me some fine tuning to find the right place. I
ended up with it inside the air filter where there is very little
air velocity changing floe direction.
I hope all that makes any sense without having the TBI in your
hand.
Richard.
Yep, I have P port, Hoping that will not affect the TBI? What
grief did you have?
Neil.
Neil,
it consists of a CDI unit triggered by a reluctor, like the
one on the Renesis(RX8) engine. The coil is from a GM waste
spark ignition. Off course on the single rotor all you need is
on trigger tooth. Everything considered, I would use on a two
rotor just two identical systems, still one tooth but two pick
ups.
If you talk to the guy at M&W he will help you, real
nice.
One thing on the TBI. If you use it on a P-Ported engine and
have a tuned intake, it dos take some modifications, for which
I did not get any help from Rotec.
Richard.
Richard you ex patriot,
I know of one
bloke who intends to use the Rotec TBI, but none in
operation that I know of. More details on your ignition
system please. Neil.
Hi in Down Under,
has anybody down there ever tried or used a Rotec TDI on
a Rotary engine? It is your local product. This is what I
am using on my single rotor after having tried all carb
solution I could think off. It also gives you a manual
mixture control. Once it was set up and running right it
is always doing that. I also am using a single channel CD
ignition system from M&W with a dual output coil. I
have no down side found on that setup so far.
FWIW
Richard.
Probably a displaced
sentence for Tracy. I only speak
Weber...............LEH
In a message dated 9/17/2018 5:18:27 PM Eastern Standard
Time, flyrotary@lancaironline.net
writes:
Gents,
As always much good advice. What
I really miss is Tracy's manual
mixture trim. Tracy I assume it can
be resurrected in the new setup??
Lynn, the fixed timing seems to work
as you say, Can you alter the
mixture with a trim pot?
Neil Unger.
--
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Richard Sohn
8029 County HWY 1087
DeFuniak Springs, FL 32433
--
Richard Sohn
8029 County HWY 1087
DeFuniak Springs, FL 32433
--
Richard Sohn
8029 County HWY 1087
DeFuniak Springs, FL 32433
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