Which 155 impeller are you using?

Cerom · Nov 21, 2020

Hi guys,

I'm looking to change my impeller because it's time to, I have actually a 7/15 oem in an oem 155 pump, with an ET1107, 52 ET carbs and ATP TS2.

I know lots of people are using a 7/15 like me, but I think it's not the best possible on the market. So I'm asking what are you using on your ski and if you've tried others?

Thanks guys.

hink320 · Nov 22, 2020

7/15 is really low pitched for a 1107 in an OEM 155. I would say minimum 13/19 would be a lot better suited.

keith t · Nov 22, 2020

TPE 1105, 13/19 skat

Cerom · Nov 23, 2020

Thanks, what type of 13/19, swirl or super slim ? Or if you have directly the reference you are using it will be perfect

Jcary85 · Nov 23, 2020

What’s the rest of your setup? That’s a pretty tall prop. What reduction nozzle bore? What pipe? What hull?

Jcary85 · Nov 23, 2020

For the record I ran a 9/16 -3mm cutback in a skat setback 155 with an 1107. It was perfect and everyone that rode it was blown away. Easy combos and huge flips. I’d start smaller than 13/19. That thing is gonna feel like it has no bottom on a 13/19. A lot of folks run an 11/17 with an 1107. Mine could have spun an 11/17 all day and on a stock pump you should have no trouble (stock pump can handle a taller prop than a “mag”). Don’t get wrapped up in the “my buddy turns A bigger prop with a smaller/same motor” game. I’ve seen a lot of people over prop for this stupid reason.

hink320 · Nov 23, 2020

Jcary85 said:
For the record I ran a 9/16 -3mm cutback in a skat setback 155 with an 1107. It was perfect and everyone that rode it was blown away. Easy combos and huge flips. I’d start smaller than 13/19. That thing is gonna feel like it has no bottom on a 13/19. A lot of folks run an 11/17 with an 1107. Mine could have spun an 11/17 all day and on a stock pump you should have no trouble (stock pump can handle a taller prop than a “mag”). Don’t get wrapped up in the “my buddy turns A bigger prop with a smaller/same motor” game. I’ve seen a lot of people over prop for this stupid reason.

I completely agree with this, I run a 9/16 with my 1107 in a mag pump and it's perfect. 13/19 worked great for me in an OEM pump, which is what he said he's running.

Cerom · Nov 23, 2020

Thanks, yes I know every details count. It's for a G2 hull with Rrp carbon pipe. The reduction nozzle bore is rrp standard.

I know the best would be to try every impeller with same setup to hope fond the best setup