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"The COMPROP, does any one kno

"The COMPROP, does any one know anything about these? do they work as advertised , would be used on a 1990 Merc. 40HP 2 stoke.

Thanks"
 
"Scott, I run a similar produc

"Scott, I run a similar product (Propulse) on my 140 horse and am happy with how it works. It is a "variable pitch" composite.

Throw all the hype aside and you narrow your prop choices down to a few different types.

At the top end of price and performance you have stainless. They flex less, bite the water harder and in particular are less affected by salt water environments. And ultimatemately may give you 1 or 2 more mph out of a 200 horse motor.

Somewhere in the middle you have alloy's and the composites - mostly an "improved" aluminum or a "space age plastic".

I also run the aluminum type (on my other motors) and like the results. Companies such as Solas make all sorts of claims about how much better they work etc etc. I like Solas simply for their hub system.

Other choices in the composite market besides the two mentioned would include Piranna.

Then you have your run of the mill Aluminum - Quicksilver, Michigan Wheel etc.

The stainless are most costly to fix if you do damage them, but the aluminum is more prone to dings etc. The composites have the nice feature that you can usually replace a single blade if you toast it, but the cost is up there, often more than simply having an aluminum repaired at a shop.

On a 40 horse, forget the hype, no matter what you put on there you will not see any performance difference (between different materials on props of the same blade count, pitch and diameter) that you can actually notice.

A 4 blade, regardless of material, will get it on plane a little faster and keep it there at a lower speed, but will shave off a little bit of the top end speed.

A 3 blade is a decent "all round" prop, again regardless of material.

If you are looking for a replacement prop that's one thing. If you are looking for some magical performance improving prop that's going to get you better "gas mileage" or increase your speed, save your money.

A new set of spark plugs will do more for performance than swapping a properly matched prop simply for the "next greatest thing on the market".

So why do I run a composite? because it was on the motor which I bought used. If I ever need to replace it I will go with a 4 blade Solas (alloy) - why? because I have a connection and get them significantly cheaper than the OEM alternatives."
 
"Thanks for the info , I just

"Thanks for the info , I just got this motor and it has a low end aluminum prop with a few dings, I'm
just looking for a spare /dingless prop to run while I fix the alum. one, seen the comprop at Cabela's,base on your info I think it should do just fine and save me a little money.

Thanks, Scott"
 
"Absolutely, if you are lookin

"Absolutely, if you are looking for a replacement and the price is decent, smack her on there. Even if it doesn't work to the level they advertise, you should be happy with the results."
 
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