What pitch prop with 155 pump

[AdzUK]

Hi guys, going to be using a 155mm 2" set back scat trak pump on my ski, just wondering what pitch prop i should be looking for? The spec is

Xscream SS900
ATP 48mm carbs
ATP Flame twin spark
PFP

Thanks for your help, Adz.

 

[AdzUK]

The prop i have says 12.5 18.5, should this be good for my setup? Thanks

 

[deftons56]

I was given a 6/13 with my Skat setback 155 pump for my xscream ss900, haven't tried it but was told it would work nice.

Sent from my SCH-I545 using Tapatalk 2

 

[D-Roc]

I run a 9/15 e75 skat swirl with a 90mm reduction nozzle and mid size tbm tail cone. Non setback pump. Your motor could probably run it with a 88mm nozzle. Mine is a 771 pv dasa

 

[wanderer1]

D-Roc is your pump a Magnum or a 12 vein? By mentioning TBM tail cone I am assuming you have an OEM. The OP has a 12 vein which will, as I am sure you know, will have very different loading characteristics. It will be very difficult for him to get in the RPM range where the pipe becomes effective with a 12.5 leading edge. Best to start with a 6 leading edge and be able to pitch up, albeit unlikely, or down and tune with nozzle bore. Good luck OP and have fun.