Not just outside the butterflies Chuck, WAY OUTSIDE. How much experience do
you need to believe this? As long as you are going to buy a new pump anyway,
get the mechanical one. It drives off the crank. In the end we needed TWO
electric Lucas pumps to provide the fuel when we started making real HP. You
will need the electric pump for start-up though.
If I were doing that engine again I would probably use 3 2" S.U's. the
April/May 2004 issue of Triumph World has the story on how I beat the Lucas
system and made it a worker.
----- Original Message -----
From: Chuck Arnold
To: fot
Sent: Thursday, June 09, 2005 8:48 AM
Subject: Tr6 PI and racing
I am setting up a TR250 for racing. Have decided to use PEtrol
Injection. So now the questions begin [I know Charly Mitchel here in
Seattle area. He is running PI this season in his TR6. He has had a
lot of contact with Kas and I hope to benefit from his learnins.
None-the-less, I thought I would quesry the august group about any PI
experiences, modifications, etc.
I located a whole PI system from a Mr. Priestly in NZ. $750 US
inclucing shipping.
Does anyone have have or know of any written resources [or URLs]
regarding modifying/imporving PI for competition purposes? Saw one
where someone suggested using one throttle butterfly before the plenum
chamber and eliminating the six butterflies in the throttle bodies
[seems reasonable -- no sync problem and simple throttle control.] Do
n ot know if this would be legal for 1969 racing specs.
I know Kas has suggests getting the injectors as far away as possible --
even outside the butterflies. Has anyone had any experience with this?
Other ideas/enlightenments other than replacing the Lucas fuel pump with
a more reliable one [Mallory?].
Thanks,
Chuck
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