15/19 3 Blade at 8100?

[Dark_viper42]

Who has tried running a 15/19 3 Blade with the stock ECU?

What did you think, numbers would be great?

[speedskixp]

I have a 15/19 3 blade on my ski and love it. It has a great holeshot and acceleration is awesome. My ski runs 75.5 in 90 deg air and 85 deg water temp @8150. I have just purchased a reduction nozzle and plan on trying the 82mm to get my rpms to 8100.

[JFizzleJR]

I lost a solid 2+ mph with the 15/19 at 8100 over the 15/20. I think the average is a 1.5-2mph loss between the two on the stock ECU.

[Dark_viper42]

But is the acceleration that much better?

I will have two setups. One with my 15/20 and one with the 15/19.

I use the 15/19 for giving rides mostly and just messing around. Was just looking for more accel!

[aha]

I put a 15/22 on my ski last weekend and there is a noticable diffrence in acceleration... not off the line but say from 1/3 throttle all the way up. Also you will lose some mph with the 15/19 on the top end.

[speedskixp]

I lost a solid 2+ mph with the 15/19 at 8100 over the 15/20. I think the average is a 1.5-2mph loss between the two on the stock ECU.

What was the rpm difference between the 15/20 and the 15/19 3 blade?

[JFizzleJR]

None. Perfect 8100. I could tell the acceleration was better, but it wasn't enough for me personally to give up the 2 mph.

[05RXPnoob]

None. Perfect 8100. I could tell the acceleration was better, but it wasn't enough for me personally to give up the 2 mph.

Same here, spinning both a 15/19(untouched) 3blader and 15/20(tweaked) @ 8100RPM. Top-end is about 2 mph better with the 15/20, acceleration isn't a huge difference between the two.

Jay

[meeper]

i had mine untouched with stock ecu running 77.9, 81mm ring

[Snoman]

i had mine untouched with stock ecu running 77.9, 81mm ring

Same here.I am running a average of 77-78 with a best of 79