G.A.P Industries

Producer of Propeller Speed Reduction Units

 

HomeProductsAcesssoriesContact Info

G.A.P. Industries is a company that's dedicated to "Quality", without extravagance, we try our best to improve our products on a continuing basis, from sources I didn't know existed. This off the shelf idea is great, "Why reinvent the Wheel!" It sure saves $$$'s and labour intensive time. Our Planetary Gear setup is from a Ford C6 automatic transmission, the 6 pinion gear set is tough enough to stand the rigors of diesel powered trucks, and it has proven itself for many hours of abuse! This was on the 4 pinion gear setup. The new 6 pinion is another 50% better in every aspect; most common sense engineers may agree with me on that.

The Prop shaft and flange is machined from a solid billet of 4140 HT - SR Steel.
The input shaft is the same; the Sun Gear is shrunk fitted and silver soldered - that's like keeping one's pants up with a belt and suspenders!

1.jpg

2.7 ltr 6 CYL. Subaru completed with our unit ready to mount on a Coot. Our PSRU's will serve as Pusher or Tractor configuration.

2.jpg

This is my 2.2 Ltr.Subaru Demo. unit with about 100 hours total running time; most of it with an out of balance metal prop. It has bent my test stand out of shape a few times. This engine puts out enough torque to turn a O-320 Lyc. prop at 2350 rpm static! Heads are ported and cams are reground, unleaded premium fuel feeds through a Weber 45 dual throat carb. The intake manifold is homemade. Ignition is a reworked Ford Escort unit, with dual pickup and dual coils etc. The real cheap route.