prop stainless vs alloy

[Spike]

Sorry Ian forgot,
Alloy prop's are usually a larger diameter than the same size Stainless prop so you can raise the engine a little without getting slip prob's so you have less drag in the water thus giving you better top end.....worked for me

[Searider]

Originally Posted by ian parkes

A local chandler has a stainless prop , genuine suzuki to fit my engine at a very good price .
Am I likely to see any advantage with a stainless prop on a 70 hp engine , other than the fact thats its more robust .

Ian,

How "very good price" is it?

If cheap enough to not matter then why not just buy it and try it?

Last two secondhand ( but good condition) SS Laser II props that I have bought cost £120 and £140.

My experience is that you can run a slightly higher pitch stainless prop than an alloy one.

Regarding killing your gearbox / shaft if you hit something, whilst a stainless prop is likely to cause more damage this still should be covered by your insurance. Might be a little inconvenient though if you do. Are you likely to hit something? - Some people are more "lucky" or are better at making their own luck than others!

BTW - have had stainless props on my last two boats with no problems.

Regards

Duncan

[genoa]

Originally Posted by Searider

Last two secondhand ( but good condition) SS Laser II props that I have bought cost £120 and £140.

Where do you get a good 2nd hand prop? I would like to have another SS one for a Merc Opti 150. Anyone have one?

[Steel Dev]

Hope I do not sound like an advert we have recently updated our sites and the following might be of interest re propellers

For General propeller info, how propellers work etc. http://www.propellerworld.co.uk

For New and Second Hand Reconditioned propellers for sale http://www.steeldevelopments.net

For Propeller repairs http://www.steeldevelopments.co.uk

Hope they are of interest but always happy give prop advise if you want to give us a call 020 8874 7059

[ian parkes]

Originally Posted by Searider

Ian,

How "very good price" is it?

If cheap enough to not matter then why not just buy it and try it?

Last two secondhand ( but good condition) SS Laser II props that I have bought cost £120 and £140.

My experience is that you can run a slightly higher pitch stainless prop than an alloy one.

Regarding killing your gearbox / shaft if you hit something, whilst a stainless prop is likely to cause more damage this still should be covered by your insurance. Might be a little inconvenient though if you do. Are you likely to hit something? - Some people are more "lucky" or are better at making their own luck than others!

BTW - have had stainless props on my last two boats with no problems.

Regards

Duncan

Its £180 , cheap for a stainless prop , but not cheap enough just experiment with .
I shall go with the argument that a stainless prop is thinner and sharper hence more efficient . So Iam hoping the slight gain i want on the performance of the 19" alloy iam running will be found with this prop .
Fingers crossed or ebay here it comes .

[1up]

Originally Posted by genoa

Where do you get a good 2nd hand prop? I would like to have another SS one for a Merc Opti 150. Anyone have one?

E bay motors is good (if the seller is prepared to ship to uk)

[ian parkes]

didn't buy it , spoke to dealer told him what I had revs speed etc , he told me same as Spike , to go down a pitch when changing from alloy to stainless . So for same performance as my 19 I need a 17 in stainless .
I give up stickingwith alloy , and they are only £99

[Downhilldai]

Originally Posted by Spike

.....Personally if i where you i would go for a 17" four blade prop from Steel Developments they will alter the pitch up or down for you ....

Surprised you didn't think of this, Parkesy

Originally Posted by ian parkes

Its £180 , cheap for a stainless prop ...

That's not too cheap - I'd recommend you shop around a bit more. If you really want stainless, you'll get one for less than that.