BLawson Posted July 27, 2017 Report Share Posted July 27, 2017 I have an 06 18ft HPX with a 115 on it with a jack plate. I am currently running a 17 pitch 4 blade. cruising at 4700 RPM around 30-34. The Boat Tops out at 42 at 5700 RPM. Does anyone have any suggestions for a 3 blade or different 4 blade? I feel like the boat is a little slow and the bow porpoises with the trim tabs all the way up. Link to comment Share on other sites More sharing options...
dabear Posted July 27, 2017 Report Share Posted July 27, 2017 # 1 a Yamaha pro series in 19 or 21 pitch # 2 a 3 blade PTR in 19 ,20,or 21 pitch # 3 a Merc SPITEFIRE X7 in 19 or 21 pitch # 4 laser 2 in 19 or 21 pitch If your in or near Ruskin Tampa Bay Area send me a message I have a few of the above props that work well on the later HPX 18 hull design 2009 (thanks Jason) and newer . The earlier hull design is not the same and may not like these props. Joe R Link to comment Share on other sites More sharing options...
geeviam Posted July 28, 2017 Report Share Posted July 28, 2017 On 7/27/2017 at 2:22 PM, dabear said: # 1 a Yamaha pro series in 19 or 21 pitch # 2 a 3 blade PTR in 19 ,20,or 21 pitch # 3 a Merc SPITEFIRE X7 in 19 or 21 pitch # 4 laser 2 in 19 or 21 pitch If your in or near Ruskin Tampa Bay Area send me a message I have a few of the above props that work well on the later HPX 18 hull design 2009 and newer . The earlier hull design is not the same and may not like these props. Joe R Like Joe said, the earlier hull design is not the same. According to the specs, it's about 265 lbs heavier than the "2009 & later" hull with the same motor. I like prop #1 on Joe's list in particular. I just found out that it has become the Unicorn of K-sized props. Link to comment Share on other sites More sharing options...
BLawson Posted July 28, 2017 Author Report Share Posted July 28, 2017 Thanks I have also figured out the 0lder hulls aren't the same. I pulled up the Yamaha motor Bulletin yesterday and they tested a 2009 hull with a 21 pitch. Is the PTR 19 - 21 pitch a Powertech prop? Link to comment Share on other sites More sharing options...
dabear Posted July 28, 2017 Report Share Posted July 28, 2017 Yes the PTR 's are power tech props. Link to comment Share on other sites More sharing options...
Wanaflatsfish Posted July 29, 2017 Report Share Posted July 29, 2017 On July 27, 2017 at 9:42 AM, BLawson said: I have an 06 18ft HPX with a 115 on it with a jack plate. I am currently running a 17 pitch 4 blade. cruising at 4700 RPM around 30-34. The Boat Tops out at 42 at 5700 RPM. Does anyone have any suggestions for a 3 blade or different 4 blade? I feel like the boat is a little slow and the bow porpoises with the trim tabs all the way up. Different hull...but, my RF18 (a 2003) with a 115 ran right at 42-44 mph....I"m not sure why you need more speed...once you get up to near 50.the skiffs can chime walk and are skittish at high speed. With a JP - a little porpoise is going to be normal with tabs up...you have adjusted the hull by moving back the engine. Just my $.02. dc Link to comment Share on other sites More sharing options...
jason p Posted July 29, 2017 Report Share Posted July 29, 2017 Just to clear things up a little: 2009 is the first year of the "new hull design" for the HPX18 not 2010. If you use the 2009 HPX18 info your boat is going to be under-propped (or over-propped maybe, I don't know I'm not a prop experimenter guy but you get my drift) What you have is a Hewes Bonefisher 18 rebadged as a Maverick. Its a great boat for sure but as stated, totally different animal. Try researching prop info for the Hewes and you may have better luck finding more comprehensive information. Link to comment Share on other sites More sharing options...
dabear Posted July 29, 2017 Report Share Posted July 29, 2017 4 hours ago, jason p said: Just to clear things up a little: 2009 is the first year of the "new hull design" for the HPX18 not 2010. If you use the 2009 HPX18 info your boat is going to be under-propped (or over-propped maybe, I don't know I'm not a prop experimenter guy but you get my drift) What you have is a Hewes Bonefisher 18 rebadged as a Maverick. Its a great boat for sure but as stated, totally different animal. Try researching prop info for the Hewes and you may have better luck finding more comprehensive information. Sorry Jason I thought it was 2010 but your correct . I did edit my post and changed the date from 2010 to the correct 2009 . Thanks again for the info. Joe R Link to comment Share on other sites More sharing options...
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