Classic SeaCraft Community - Prop on 150 merc/ on 20 SF

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askipper3

04-05-2007 09:04 PM

Prop on 150 merc/ on 20 SF

Ya, its a 17 degree pitch on a 150 merc........I had a 17 degree pitch on my 90.....seems odd huh>

Bigshrimpin

04-06-2007 12:27 AM

Re: Prop on 150 merc/ on 20 SF

AK - What year was your 90hp? If I remember correctly a Merc 90hp two stroke had a 2.3:1 ratio . . . and your 150 is 1.87:1

askipper3

04-06-2007 01:12 PM

Re: Prop on 150 merc/ on 20 SF

2001 merc 90

Bigshrimpin

04-06-2007 01:47 PM

Re: Prop on 150 merc/ on 20 SF

Should be 2.3 to 1

Here's a good online prop calc for you.
http://www.go-fast.com/Prop_Slip_Calculator.htm

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