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Thread: NEW 13' Biel Tunnel
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05-21-2021, 06:07 AM #76
Water issue has been fixed was just a bad housing and a few other small things, works as intended now plenty of pressure that it sucks the water out of the bucket faster than the hose can keep it filled.
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oldschoolltv, tnelsmn liked this post
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06-16-2021, 12:19 PM #77Member
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updates??
@TwzteD , you got that motor broke in yet?
Updates please
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06-16-2021, 12:32 PM #78
Kind of, having a bogging/ jetting issue Down low with load on it, ordered new air jets.
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06-21-2021, 03:15 PM #79
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07-07-2021, 05:44 AM #80
Last edited by TwzteD; 07-07-2021 at 05:50 AM.
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07-07-2021, 10:35 AM #81
Pretty fast! Whats the hp on the motor at that rpm?
Azure AZ259, 8.1
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07-07-2021, 10:38 AM #82
Honestly not really sure I know they make around 85 horsepower stock and finger ports supposedly add about 10 to 15 so if I had to guess somewhere between 95 and 100 horsepower. Some people claim they can make up to $115 horsepower but I've never seen any dyno results in person so I can't say it's true. The benefit of this motor is it only weighs 190 lb with the cowling.
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08-24-2021, 06:14 PM #83
I haven't updated here lately so figured I would. Haven't really had any video footage of the boat running just doing a lot of testing. Still needs more but Have switched gears, went from 1.86 to 1.78 and boat didnt care for it but i kept everything else the same. didnt try any other props, I lost 400rpm and 4-5 mph in the process. I also have an Porpoising issue at higher speed. Before the gear change i was getting 69-70mph and 8100 rpm. after im getting 65-66 at 7600 rpm. heres a few videos. trimming up dont help just gets lighty like the last video, and jacking the engine up don't either just blows out the prop and i loose steering. The sponsons have hooks on the bottom, i shaved off 1/8th inch off the very back but i still have to fill around 1/8 more that may help. I have a 60r on order should be here in a few weeks, I have a small case for it not the big 2.33 case, going to swap off the sst60 and put it on a stand to use in a future "project" and dial in the 60r and use it as a family boat it works very well for that!
Last edited by TwzteD; 08-24-2021 at 06:19 PM.
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08-25-2021, 08:47 AM #84Member
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Twisted, I'm not an expert on this but it seems like your making too much power for the prop. Could the porpoising be caused by lack of bite from the prop and as it slips the bow lift falls and the process repeats itself over and over?
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08-25-2021, 09:23 AM #85
Perhaps adjust engine height to change susceptibility to porpoising?
Also, check out this article on Porpoising: https://www.screamandfly.com/content...-How-To-Fix-ItLast edited by Jimboat; 08-25-2021 at 10:26 AM.
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08-25-2021, 09:47 AM #86
I have tried going up and it just blows out the prop and I loose steering, the tip of the bullet is now at water level essentially.
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08-25-2021, 10:04 AM #87Screaming And Flying!
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Taking hook away will not help. It's there to prevent porpoise by the builders design. You might try some weight fwd to help move the c/e fwd.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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08-25-2021, 10:15 AM #88
I spoke with Mike Biel, They revised the design last year in the mold lavy craft extended the sponsons, The hooks are not supposed to be there Mike said they should be dead flat but they were not able to do so in the mold for whatever reason. They were supposed to fix them on my boat before I acquired it but there was a few flaws that got missed before the boat got picked up and delivered to me. Mike worked with me through that however he did tell me the fill the sponsors in because they are designed to be dead flat there was almost a quarter inch hook in them from the very back part to about two feet forward of that. I figured I will fill them in and see what happens worst case scenario I can add like a pencil roll to the back of the sponsor if needed later on down the road.
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08-25-2021, 10:18 AM #89Screaming And Flying!
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How thick is the hull on the trailing edge?
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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08-25-2021, 10:21 AM #90
I am unsure but I Don't want to shave too much off
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