Thanks, I need to hold off on getting a spare right now. I am pulling the boat in a couple weeks to do some other work on the boat.
Correct prop size
- Thread starter JBlaze
- Start date
Hey Hookup, I have a 270. How did the four blade props affect the handling? Specifically, the rolling?
Any negative effects other than speed?
Hookup1
GreatGrady Captain
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- Oct 16, 2007
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- Islander
Hookup1 said:
I have been running a 268 Islander with twin Yamaha f-150's with 17 x 14 1/4 3-blade Yamaha Reliance stainless.
Generally the boat is a 10 knot or 20 knot boat with no in-between. I want to improve my low end performance so I can plane at lower speed. I have plenty of top end and can only use it on the best of days.
I spoke to Ken at propgods.com and he recommended swap for 15 x 14 4-blade. Thinks my low speed performance would significantly improve and maybe even my top end speed.
Propgods.com recommended these…
https://propgods.com/shop/ols/products/ptz4 (on order)
or these
https://propgods.com/shop/ols/products/ptz3 (similar to Yamaha Reliance)
So I've had my chance to test these props in the Florida Keys this winter. For my 1997 268 Islander w/twin F150's they are absolutely perfect. Dropped 2" of pitch, 1/4" of diameter and changed to a different style prop (vs Yamaha Reliance). Significant - unbelievable improvement in low and mid range performance. Boat will plow and plane at lower speeds that could not be done before. Top end unaffected. In rough seas motors don't bog down and "grip" better to keep boat from falling off. Highly recommend.
A lot of boaters think dropping pitch will slow the boat down. Not always true. If over propped and "slipping" its too much load on the engines. Prop correctly and increase efficiency. Absolute game changer for me!
What do you mean by rolling?
I have been running a 268 Islander with twin Yamaha f-150's with 17 x 14 1/4 3-blade Yamaha Reliance stainless.
Generally the boat is a 10 knot or 20 knot boat with no in-between. I want to improve my low end performance so I can plane at lower speed. I have plenty of top end and can only use it on the best of days.
I spoke to Ken at propgods.com and he recommended swap for 15 x 14 4-blade. Thinks my low speed performance would significantly improve and maybe even my top end speed.
Propgods.com recommended these…
https://propgods.com/shop/ols/products/ptz4 (on order)
or these
https://propgods.com/shop/ols/products/ptz3 (similar to Yamaha Reliance)
So I've had my chance to test these props in the Florida Keys this winter. For my 1997 268 Islander w/twin F150's they are absolutely perfect. Dropped 2" of pitch, 1/4" of diameter and changed to a different style prop (vs Yamaha Reliance). Significant - unbelievable improvement in low and mid range performance. Boat will plow and plane at lower speeds that could not be done before. Top end unaffected. In rough seas motors don't bog down and "grip" better to keep boat from falling off. Highly recommend.
A lot of boaters think dropping pitch will slow the boat down. Not always true. If over propped and "slipping" its too much load on the engines. Prop correctly and increase efficiency. Absolute game changer for me!
What do you mean by rolling?