The Chrysler/Force Prop thread: 85-150 (thru 1994)

[SkiDad]

Since ski season is about done up North, I decided to test all my props and put some stats out. These are all with a light load of approx 2200 lbs total with a Force 125 (single exhaust). I'm into water sports so I'm propped for that. Obviously everyone's setup is different but this will give you an idea of how these props compare. I'm hoping it will help someone else. Please feel free to add to this thread with your prop findings.

The 15p Turning Point hustler is a progressive pitch prop with a ton of cupping and a lot of blade area and it runs like a 17p - notice how the speeds are dead on with my 17p Stainless. But the 15p hustler out accelerated the 17p stainless and is smoother overall but has noticeably more bow lift. The Turning point has a plastic ring that needs to be removed to fit the Chrysler style gear case. Also you need to remove the anode behind the prop.

These are listed in order of acceleration.

	Michigan	Michigan	Turning Point	Michigan
	SST	Alum (no cup)	Alum	SST
	73007	72055	21431511	SSC-317-ii-c
	13-3/4 x 15	13-1/8 x 15	13-3/4 x 15	13-1/4 x 17
3500	21	19	25	25
4000	26	24	29	29
4500	29	28	32	32
5000	32	31	35	35
WOT	36	37	38	38
@	5500	5800	5400	5250

 

[SkiDad]

Here is a chart I made to simplify things - iboats carries the aluminum props. If you want SST you most likely have to look on ebay or craigslist for one.

I noticed that most Force engines will run good with a 17p prop - maybe 15 is needed for the serious slalom skier or heavy boat load. I left out the 21 pitch b/c I can't see too many boats being able to use that pitch. Prop your boat so you are running at 5000-5500 RPM at full throttle.

The later thru hub props will work with single exhaust no problem, you just can't do the reverse.

Size	Material	Cupped	Michigan	AKA	Note	Single Exhuast	Dual Exhaust
14 x 13	AL		072054		discontinued	x
13-1/8 x 15	AL		072055		available	x
13-1/4 x 17	AL		072107		available	x
13 x 19	AL		072108		available	x
13-3/4 x 15	SST	x	073002	SSC-315-II-C	discontinued	x
13-1/4 x 17	SST	x	073003	SSC-317-II-C	discontinued	x
13 x 19	SST	x	073004	SSC-319-II-C	discontinued	x
13-1/2 x 15	AL	x	071035		available	x	x
13-1/2 x 15	AL		072127		available	x	x
13-1/2 x 17	AL	x	071036		available	x	x
13-1/2 x 17	AL		072128		available	x	x
13 x 19	AL	x	071037		available	x	x
13 x 19	AL		072129		available	x	x
13-3/4 x 15	SST	x	073007		discontinued	x	x
13-1/4 x 17	SST	x	073008		discontinued	x	x
13 x 19	SST	x	073009		discontinued	x	x

These props will also fit if you take the anode behind the prop off and remove the plastic ring from the prop: Michigan Vortex, Turning Point Hustler.

I haven't verified but I think the Michigan Apollo SST is the same way with the plastic ring.