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  Where is the best place to acguire a 90 HP Four Stroke Prop?

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Author Topic:   Where is the best place to acguire a 90 HP Four Stroke Prop?
Holy Cow posted 07-01-2003 07:20 PM ET (US)   Profile for Holy Cow   Send Email to Holy Cow  
I am looking for the best place to find an aluminum prop as a spare just in case I bend and or through a HUB? Is the 16 Inch Pitch Propeller an acceptable Prop or should it be a 18 Inch Pitch Prop like the SS Prop? Many Thanks... Safety is the best Policy... HC
Barney posted 07-01-2003 07:48 PM ET (US)     Profile for Barney  Send Email to Barney     
Holy Cow, I would recommend a 21 pitch aluminum as a spare. I had that prop on during the dealer sea trial of my 90 four stroke. It worked ok. Barney
Holy Cow posted 07-01-2003 11:06 PM ET (US)     Profile for Holy Cow  Send Email to Holy Cow     
Hello Barney... Does the 21! Have better out of the hole whomper stomper get up and go as compared to an aluminum 16? I do see the 18 Vengence is a tadd bigger than a 16! You do realize what the Forum reports recommend: From the Forum it is recommended the 2 stroke use a 21 " Pitch You would use a 21" on a Four Stroke?>>> Thank you Barney... HCV

Calculated Top Speeds 170 MONTAUK:

ENGINE WOT RPM GEAR REDUCTION PITCH INCHES CALCULATED MPH REPORTED MPH

Mercury 60 HP 4-stroke EFI Bigfoot 6,000 1:2.31 14 Pitch 34.4 33.5
Mercury 90 HP 2-stroke 5,500 1:2.30 21 Pitch 47.5 43.7

Mercury 90 HP 4-stroke 6,000 1:2.07 16 Pitch 43.9 43.0

Dick posted 07-01-2003 11:52 PM ET (US)     Profile for Dick  Send Email to Dick     
Holly Cow

I think that the most important piece of information that is needed, before giving advise, is what is your WOT RPM with the prop you are now running.

The thing to remember is if you go down in pitch you increase your WOT RPM if you go up it decreases.

Don't to put much stock in those boat test reports. It may be the same boat/motor combo you have but your performance will be related to how you load your boat not how they did.

Dick

Barney posted 07-02-2003 03:57 PM ET (US)     Profile for Barney  Send Email to Barney     
Holy Cow, I only recommended the aluminum 21 as a backup prop. I can say that it does not perform up to the 18 pitch stainless that we have on our boats. Good Luck Barney
jimh posted 07-02-2003 10:16 PM ET (US)     Profile for jimh  Send Email to jimh     
The best place to ask about the best place to buy something is the Marketplace Forum.
Bigshot posted 07-07-2003 01:37 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Where would that be Jim?

I only found "the forum formerly known as marketplace" :)

jimh posted 07-09-2003 06:06 PM ET (US)     Profile for jimh  Send Email to jimh     
Huh? I had my headphones on listening to some Prince recordings and I didn't hear you.

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