Back flip skis are so frustrating most times.

d_moss

d_moss

Location
Rexburg, ID
So with my old pump I could flip my ski. Mind you the pump shoe was literally falling out and sucking air off idle bad.

Now my new 155 with 11/15 ish prop new trim also and I cut my plate flush with the hull. I land on my head every time. It Jumps out of the water and feels like it has more thrust which it should!

Couple things might be going on here.

Prop to steep can't turn it fast enough down low.

Thrust pro trim has less tilt than my thrust original. Maybe it's just not tilting enough?

Cutting my plate flush might not have enough surface area on the bottom and it's just blowing through the wave.

Normal riding around I didn't notice any change with the ride plate.

Any pro tips?
2efd2d9773bd041e29ca41d6020c04f4.jpg


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EddieGigoWatts

EddieGigoWatts

Braaping Pirate
Location
Fort.Lauderdale
When I upgraded to a 148 from a 144 10/16, was told to go to a 9/15 impeller my ski when from rear wheel drive
To 4 wheel drive hook up
What was the old pump size + pitch?
 
jo5hi3

jo5hi3

Location
Charlotte NC
d_moss said:
So with my old pump I could flip my ski. Mind you the pump shoe was literally falling out and sucking air off idle bad.

Now my new 155 with 11/15 ish prop new trim also and I cut my plate flush with the hull. I land on my head every time. It Jumps out of the water and feels like it has more thrust which it should!

Couple things might be going on here.

Prop to steep can't turn it fast enough down low.

Thrust pro trim has less tilt than my thrust original. Maybe it's just not tilting enough?

Cutting my plate flush might not have enough surface area on the bottom and it's just blowing through the wave.

Normal riding around I didn't notice any change with the ride plate.

Any pro tips?
2efd2d9773bd041e29ca41d6020c04f4.jpg


Sent from my SAMSUNG-SM-G890A using Tapatalk
Click to expand...


Above in red is probably your issue.
 
Christian_83

Christian_83

Xscream
Location
Denmark
Ah you are at high elevation, i dont know to much about riding higher elevated.
What exit nozzle bore are you at? a
What compression are you running?
Maybe a 9/15ish fits your elevation better, if the 10/16 148 made your setup run nice. You could try and bend you 11/15 down to 9/15 for starters
 
d_moss

d_moss

Location
Rexburg, ID
Christian_83 said:
Ah you are at high elevation, i dont know to much about riding higher elevated.
What exit nozzle bore are you at? a
What compression are you running?
Maybe a 9/15ish fits your elevation better, if the 10/16 148 made your setup run nice. You could try and bend you 11/15 down to 9/15 for starters
Click to expand...
Ordered a 7/15 we will see how that goes. Maybe send my 10/16 (found out what it was) repitch to something lower

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Just4Fun

Just4Fun

First World Problems...
Location
Southern Oregon
Youre overpropped for sure
2000' elevation
Im running a cutback Skat thinblade
9/16 with my 1107
OEM 155/ TBM stuffer
91mm reduction nozzle
Stock plastic steering
In a Glass Phantom

What are you're exit and steering nozzles bored to? This is a huge piece of the puzzle that alot overlook..
 
Sanoman

Sanoman

AbouttoKrash
Location
NE Tenn
Just4Fun said:
Youre overpropped for sure
2000' elevation
Im running a cutback Skat thinblade
9/16 with my 1107
OEM 155/ TBM stuffer
91mm reduction nozzle
Stock plastic steering
In a Glass Phantom

What are you're exit and steering nozzles bored to? This is a huge piece of the puzzle that alot overlook..
Click to expand...
Wait a minute,they don't make a TBM stuffer for a 155. So did you modify it?
 
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