Richard,
I have the throttle body 18 inches away from
the housing entrance and it idles at 2200 reasonably well. Sounds
like you tried having the TBI away from the housing --- what
results?? Other than that I can understand you advice re the
TBI. Neil Unger.
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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