SR 5.4 Mariner 75 prop

[neilhope]

I'm looking to replace a fairly battered prop on my SR5.4/Mariner 75hp and curious as to what size/pitch other Searider owners are using with similar setups.

[Turbodiesel]

18" pitch vengeance stainless steel is the perfect prop for that set up.

[Turbodiesel]

Or a 17" black max ally prop.

[RIB-Teccie]

What RPM are you getting with your old prop, what were you getting? Go for a prop which will give you performance towards the top of the rev range.

[neilhope]

No idea of RPM but a top speed according to my GPS of around 30 knots.

[RIB-Teccie]

I would buy a cheap digital tachometer from eBay, the type that wraps around the top ht lead, it's difficult to choose the correct prop by guessing. Most 75 hp engines were supplied with a 15" prop as standard. I know that size works ok with a 75 two stroke yammie. A 17" wouldn't do any harm but I would find out what your starting point is.

[tom watkins]

Hi is this any good ?