By David Koehler
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Urbana IL, USA
217 531 1770
M-F 9 - 5 CST
Many Photos may be
enlarged by clicking on them.
There is a red over-ride button on the black end of the AAS that you can push
to test the system.
You can count turns if you need to have a couple of different setups.
Be forewarned. DO NOT get over zealous screwing these down looking for the
bottom. A light touch is required to avoid damage to the seals.
Remember that when you adjust your barrel valve or change the secondary
bypass the launch rpm may change so it's a good idea to recheck the launch
IF you run a pro transbrake that requires that the transbrake button be pushed
to back up. Remember that with the transbrake button activated and the throttle
control along with it that you only have throttle rpm control up to your preset. IE
if you have it set to launch at 5000 rpm then you can control the throttle from
idle up to 5000 rpm while backing up. If you have it set at idle of say 2000 then
that is as fast as you can back up.
All Text and images on this website are copyrighted by David Koehler 2000 and beyond
All sales are final. Items and services provided by Koehler Injection are intended for off road use only.
No responsibility whatsoever will be accepted by Koehler Injection for any damage, injury or loss resulting from their use.
Version 2 (takes 2 people)
1: Loosen the two round black clamps on the external shaft and move them to
the extreme end of the shaft where the little plastic bumper is.
2: Start the engine. Note that you may want to run through the steps with the
engine off first.
3: Hold the button to activate the throttle control....and the transbrake.
4: Put the throttle on the floor. Note that only your pedal is moving, not the BFs.
5: Crewman brings the engine to the preferred RPM by moving the injector
6: A crew member will then pull the
round clamp up to the bottom of
the cross bar and lock it.
7: You can now release the button
and bring the car back to idle.
8: Crew member should then bring the second round clamp up to meet the
first. It's just a redundant safety feature. Nothing more.
9: You can now test the stage rpm by pushing the throttle control activation
button. Push the pedal to the floor and the launch rpm is at your preset.
Once you have it set where you
want you can take a measurement
with the feeler gauges or calipers
and record it for the future when
maintenance changes things.
1: You can pretest the system by pushing the red button on the black end of the
solenoid to see if it does what you expect.
2:There is no set distance to work from because return spring pressure and
rpm load on the car will be different in each case.
3: Make a note of your final spacing for future use. Dial calipers could be used
in place of feeler gauges.
Setting how quick the car launches
On the air activation solenoid there are 2
little brass screws marked 1 & 2.
(looks like a 4 in the pic)
Screw 1 controls the speed of the rod as it
Screw 2 controls the speed of retraction
By using these screws you can regulate
how quick the injector opens and closes.
Bad track...slow it down a little.