Hard to find prop? VP SP LR 27-29P
#1
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From: Long Lake, MN
On and off I have searched for an "old school" VP SP (270) counter rotation/left 27-29P prop (think it is ~17 straight spline?) and have had no luck.
Is this a hard a hard prop to find or do my search skills simply stink!?
Is this a hard a hard prop to find or do my search skills simply stink!?
#4
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From: Long Lake, MN
Jeff - is this pitch uncommon for VP because it is higher than what most may be looking for? or was it the specific numbers I listed? I'll try anything between 27p and say 30p.
With respect to running an adapter, I had been advised not to do this. I don't recall why I was convinced of this and maybe I should reconsider this.
I currently have a Solas Titan 21p cupped/labbed and it is good for what it is. I also have a VP 23p SS that delivers ~ +5 MPH I'll research the 23p (i.e. price it out
, from what I recall the Solas is reasonably priced). Would it make sense that the Solas 23p would deliver ~ +5 MPH over the Volvo 23p SS?
One other thing I just thought of that may be relevant here or signal something all together different. Sometimes when I come out of the hole hard or crank it up hard while cruising @ ~ 15 MPH the boat seems to stall and it is not an engine thing, the engine is running strong and it seems as though the prop is shredding the water vs. gripping it and pushing forward. When this happens the water appears very aerated (and yes the drive is down and not running along the water surface - trimmed up).
With respect to running an adapter, I had been advised not to do this. I don't recall why I was convinced of this and maybe I should reconsider this.
I currently have a Solas Titan 21p cupped/labbed and it is good for what it is. I also have a VP 23p SS that delivers ~ +5 MPH I'll research the 23p (i.e. price it out
, from what I recall the Solas is reasonably priced). Would it make sense that the Solas 23p would deliver ~ +5 MPH over the Volvo 23p SS?One other thing I just thought of that may be relevant here or signal something all together different. Sometimes when I come out of the hole hard or crank it up hard while cruising @ ~ 15 MPH the boat seems to stall and it is not an engine thing, the engine is running strong and it seems as though the prop is shredding the water vs. gripping it and pushing forward. When this happens the water appears very aerated (and yes the drive is down and not running along the water surface - trimmed up).
#5
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Joined: Jan 2006
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From: Minneapolis
Hi Scott,
Yes the higher pitch would be hard to find. Not much demand for it. Anything higher than 23 was usually custom.
What is your gear ratio?
Have you considered trying a lower one numerically.
It is very common for the Solas to have very low slip. On my Magnum they yielded 6% slip.
I know that the Volvo Ultra were much more than that.
As far as one prop working better than the other. You just have to try them. Sorry.
It sounds like the prop is cavitating. Not too much you can do about that besides being a little easier on it.
My friend has a 23 Solas left hand. I'll ask of we can borrow it.
Throw this over to Donzi.net I think Volvo had a 26p Ultra. Someone may have one.
Jeff
Yes the higher pitch would be hard to find. Not much demand for it. Anything higher than 23 was usually custom.
What is your gear ratio?
Have you considered trying a lower one numerically.
It is very common for the Solas to have very low slip. On my Magnum they yielded 6% slip.
I know that the Volvo Ultra were much more than that.
As far as one prop working better than the other. You just have to try them. Sorry.
It sounds like the prop is cavitating. Not too much you can do about that besides being a little easier on it.
My friend has a 23 Solas left hand. I'll ask of we can borrow it.
Throw this over to Donzi.net I think Volvo had a 26p Ultra. Someone may have one.
Jeff
Last edited by hallj; 04-15-2016 at 08:10 AM.



