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Old 03-10-2021 | 12:23 PM
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Originally Posted by Peter Oberg84
Need advice regarding props for newly rigged Ol 37 GTX

engines are making 1000hp @ 6000rpm and 1000lbft @ 4400rpm
Arneson drives 1.32 gears

The props suggested now are 18x32x18R.

if anyone have a couple of props in that dimension and interested in selling please contact me.

as I looked over what’s listed it seems to be most 17” diameter props for sale, do anyone no if my hull would work with the smaller diameter or have any input as I can be completely wrong an the 18x32x18 props.

I want to bye used props to establish baseline.

I live in Sweden so the market for props are really limited.

grateful for all help I can get
Peter
What is your prop spacing ? What I have found in my prop testing is 17in and smaller my boat does not like to get on plane with them and my boat responds well to high rake props . I run a set of 31 pitch 18 dia 20 rake
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Old 03-10-2021 | 12:29 PM
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Do you mean the drive c-c?
Center distance is 22”
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Old 03-10-2021 | 05:04 PM
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Yes center to center mine are 34in apart what drives do you have and what splines are on your shafts ?
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Old 03-10-2021 | 10:27 PM
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Drives. Arneson ASD 7M HD, #6 spline.
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Old 03-11-2021 | 07:43 AM
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I would think that with your set up the props you are looking for are close to what need , but you might be able to get away with a slightly smaller diameter if you need to get to your max RPM at neutral trim . My buddy always told me once you find the perfect set of props you will sleep with them under your pillow
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Old 03-14-2021 | 01:05 AM
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Do you have SSM or arneson splines? I have pair of 16.5x34 and 17x33 arneson spline rollas in Finland. I’m interested to exchange to bigger diameter props.
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Old 03-14-2021 | 01:49 AM
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Originally Posted by ksalmine
Do you have SSM or arneson splines? I have pair of 16.5x34 and 17x33 arneson spline rollas in Finland. I’m interested to exchange to bigger diameter props.
#6 spline won’t work...

thanks anyway
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Old 03-14-2021 | 03:38 PM
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Originally Posted by bigfarmer
I have a beautiful set of Mercury Racing 17.5x32 5 Blades if you are interested.
I’m interested, what rake are they? How much do you want for them?
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Old 03-14-2021 | 03:40 PM
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Originally Posted by green lightning
What is your prop spacing ? What I have found in my prop testing is 17in and smaller my boat does not like to get on plane with them and my boat responds well to high rake props . I run a set of 31 pitch 18 dia 20 rake
What boat do you have?
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Old 03-15-2021 | 06:36 PM
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Originally Posted by Peter Oberg84
What boat do you have?
I have a non-step 35 fountain with 800hundreds and arneson ASD- 7 I also have 1:32 grears

Last edited by green lightning; 03-15-2021 at 07:06 PM.
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