Custom/Hybrid 155 vs 144 fitment questions

Brian_216

Brian_216

Location
Harveys Lake PA
We are making some changes to our molds to accept the 155/160 pump easily. -and keep up with the rest of the industry- My question is will it bolt up where the 144 went and still line up (centered) with the drive shaft tube?? Also since I dont have a 155 shoe in my hand can anyone get me a measurement on a 144 and 155 shoe for the opening that rests in the hull? I want to see if its something that can be done with clay in the mold to take the 155 shoe. (this will eliminate making 2 molds for 2 pump configurations) We are currently re designing our inlet duct to better work with larger pumps. To those that have done it- How well does a 155 retrofit work on an inlet duct designed for a 144 pump?
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Brian_216 said:
We are making some changes to our molds to accept the 155/160 pump easily. -and keep up with the rest of the industry- My question is will it bolt up where the 144 went and still line up (centered) with the drive shaft tube?? Also since I dont have a 155 shoe in my hand can anyone get me a measurement on a 144 and 155 shoe for the opening that rests in the hull? I want to see if its something that can be done with clay in the mold to take the 155 shoe. (this will eliminate making 2 molds for 2 pump configurations) We are currently re designing our inlet duct to better work with larger pumps. To those that have done it- How well does a 155 retrofit work on an inlet duct designed for a 144 pump?
Click to expand...

I haven't done it personally but I've supplied a 155mm pump setup (including pump shoe) to Krash for e same purpose you are talking about. Barton told me it was a lot harder than he had expected. It wasn't just a simple 'enlarge this and that'. That's all I know.
 
wanderer1

wanderer1

Location
Cruising Around
I guess the Ski Clinic has it figured out,ask them. This is from their new product release on the hurricane.
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Originally Posted by wanderer1 So you are able to take the installed 144 and open it up for a 160mm? Thats good news for the consumer. I've never heard of that being possible before so that is definately something new. Kool,that is a feature that you should really promote.
That's correct. I set up all hulls for a 148 during assembly, and if the customer requests larger, I bore it out before going to paint. We keep multiple pumps on hand in which I use as a reference to ensure a proper fit/ intake size.
 
wanderer1

wanderer1

Location
Cruising Around
And this.
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Originally Posted by wanderer1 Should've been included in the promotional videos for sure. Correct me if I'm wrong,but is this not an industry first? Same shoe any pump, nice"
"With the exception if someone were to start off with a 160, they cannot swap back down to a 144 without some sort of fixture, as the pump tunnel will be too big."
 
Superjetjim

Superjetjim

X-
I've just fitted a 155 shoe and Skat 155 pump to a 2012 XFS recently (2013 onwards takes a 155 without modification, earlier models don't ) - findings as follows:

The standard shoe for a pre 2013 XFS is a 144 or 148 - that's as big as it will take without work.
Grinding the pump 155 shoe outer edges as far as possible saves removing as much Glass from the hull.
The XFS tunnel is already massive so I didn't touch that.
I removed about 2.5mm all round the pump shoe seating area to get the pump shoe to fit into the recess and be flush.
I removed about 2mm all round the pump shoe itself to thin it right down until it fitted.
A key learning for me is how tight the pump area is for the cooling lines/steering/trim cables - widen this a bit off possible.

Hope that helps some?

Jim
 
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