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Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   Prop Talk (https://www.offshoreonly.com/forums/prop-talk-165/)
-   -   Prop suggestions Ol 37 GTX (https://www.offshoreonly.com/forums/prop-talk/370674-prop-suggestions-ol-37-gtx.html)

green lightning 03-10-2021 12:23 PM
Quote:
Originally Posted by Peter Oberg84 (Post 4780369)
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

Peter Oberg84 03-10-2021 12:29 PM
Do you mean the drive c-c?
Center distance is 22”

green lightning 03-10-2021 05:04 PM
Yes center to center mine are 34in apart what drives do you have and what splines are on your shafts ?

Peter Oberg84 03-10-2021 10:27 PM
Drives. Arneson ASD 7M HD, #6 spline.

green lightning 03-11-2021 07:43 AM
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

ksalmine 03-14-2021 01:05 AM
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.

Peter Oberg84 03-14-2021 01:49 AM
Quote:
Originally Posted by ksalmine (Post 4781418)
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

Peter Oberg84 03-14-2021 03:38 PM
Quote:
Originally Posted by bigfarmer (Post 4780919)
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?

Peter Oberg84 03-14-2021 03:40 PM
Quote:
Originally Posted by green lightning (Post 4780958)
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?

green lightning 03-15-2021 06:36 PM
Quote:
Originally Posted by Peter Oberg84 (Post 4781468)
What boat do you have?
I have a non-step 35 fountain with 800hundreds and arneson ASD- 7 I also have 1:32 grears


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