Where can I get one of those slide throttles, looks really nice...
Pedro Lopez

That particular one is not made anymore. It was also heavy.
We have a kit for $175 with the tubes welded
to front and back covers.

http://www.rotaryeng.net/ Scroll down to the bottom
of the first page for pictures.

Here is a how to by Craig Smith.

You can have it anodized with any color you like.

I will sell you the one that looks like Joe's for
$500 plus shipping. It has a throttle cable.
Never used.

Paul Lamar



i would like one but with bigger ports for a racing engine.
Pedro Lopez

Looks like you will have to make your own or hire somebody
to make one. The people I know with the tools to make one
like this charge a lot of money :) Looks like a job for
a water jet and a tig welder.

Looks like the max tube supported is 2.5 inch OD. That is
a big P-Port!!!!

Here is a sketch.

Paul Lamar


I like the one with the teflon teardrop.  I think it
would be better throttle response at accelerating
from 0 rpm. the thicker throttler seems strronger
and prevents deflection on track, at acelerating.
I will need about 2 1/8 to 2 1/4 ports.
P.


There is no room between the runners for a teardrop.
The 2.5 inch barely fits. Draw it to scale and that
will become obvious.

In any event as far as I can tell it made no difference.
The P-port runs like crap at low RPM anyway. Especially
with the large size of p-port under consideration here.

A road racer never gets below 7500 RPM
and an aircraft not much below 5000 RPM.
Besides P-ports are outlawed in all classes
of road racing as far as I can tell. Unfair
to piston engines.

Drag racers run 9,000 to 11,000 with the tires smoking.

What kind of racing will you be doing?

Paul Lamar


Ive been building rotary engines since around 1978.
Drag racing.  Worked for Mazda as tech for many years
and then moved to parts and service manager for many
more. Id love to get a Mazda slide throttle for a 4
rotor engine I will be building for next year.
Do you know of any?

Pedro Lopez

They are not that hard to make. Mark S in Austin and others
have made their own for 3 rotors. The Teflon lining
makes them much cheaper than the ball bearing big buck type
found on the Lemans four rotor.

Here is a how to cut the Teflon by Craig Smith.

Paul Lamar