Re; Jean Prudhomme question about slide throttle location on the
sparkplug side...

If I understand correctly we want the slide throttle then
injectors injectors as close as possible to the intake port.

Then we need intake tubes of certain length to the bell mouth to
get the best power curve in our ideal operating range - about
22" to maybe 30" ( 30" = lower than 6000 RPM range) . Is this
distance to the p-port, rotor face, or to the slide throttle?

Not very much change, maybe 2-3", but could be noticable in BSCF
long term? I am frugal like Tracy Crook and will probably cruise
@ 4000 - 4500.

The nice part about having long intake tubes (becides better
power) is freedom to locate the intake inlet, air filter,if
used, and plenum box almost anywhere in the cowling. Or even in
the wing on a canard pusher.
What does dyno testing show for the best runner lengths @ xxxx
RPM?



Dan F

The slide throttle should be close to the port but the
injectors can go anywhere. What seems to work best
for low fuel burn is near the start of the runners.

For 7500 RPM take off and a 2 inch OD .065 wall tube
22 to 24 inches works best.

Paul Lamar