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Thread: I need a 120+miles etec
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05-07-2019, 04:00 AM #1Junior Member
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I need a 120+miles etec
So now when you know that i need a 120+miles etec, i guess you want to know why? I want a etec that can go as fast as any merc we got here. The boat does 106mph on a good day with a 200xs ros
What is the fastest and cheapest way to get a 120miles etec? What do i have ? I got a 2008 250ho 3.4L, 20" mid and 1.71 gearhouse, and i got a 3.3L 225ho powerhead, but i also have a 15" mid to a 200xs ros, and a Sportsmaster but i need everything om the inside new, so i can build 1.5 gearratio or something like that (how low can i get to that House i have?)
And its 1thing that is alittle boring with the etec's, its the rpm. I want 1000 more, what to do ? If i get 1000more rpm's i can use standar etec 20" mid and the 1.71 gearhouse with bobs nosecone kit. It would be funny to have norways fastest etec
Its more than 1 solution to my problem, the easy and cheap solution, is to use the 300 ProMax i have. i want to see 100knots/115mph almost everytime i'm out driving, but i want to drive 300 hours a year, and then i guess etec is a better choice. If i dont use the 300pm on the blue, i'm going to use it on the yellow thats just going to be a sunshine boat and the Blue is a everyday racer
Attachment 438114
Attachment 438115Last edited by Twister24etec; 05-07-2019 at 02:09 PM.
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05-07-2019, 10:02 AM #25000 RPM
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ETEC ...1:71 gr...6000 rpm..120 mph = about 40 pitch prop..don't see that happening
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05-07-2019, 10:26 AM #3Junior Member
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05-07-2019, 10:46 AM #4Junior Member
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Anyone make a adapter i can have between the 2.5 15" merc mid and the etec powerhead? Anyone got drawings to a cnc driver ? If i put the driveshaft in the lathe, can i tig weld it or do i need to make a new? What kind of metal quality is the best way to go? How low gearratio can i get to the Sportsmaster to a 200xs ? How can i get more rpm's out of the etec? Can anyone "break" the emm and adjust the revlimiter or do i need a aftermarked ecu? the How much does a Taylor midsection cost ?
Last edited by Twister24etec; 05-07-2019 at 11:02 AM.
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05-07-2019, 12:44 PM #55000 RPM
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Post more pics of that Yellow boat please.
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05-07-2019, 01:56 PM #6Junior Member
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05-07-2019, 04:46 PM #7Junior Member
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Is the best solution 300xs, 1.62gr, dbr kit ?
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05-07-2019, 05:39 PM #8
3.4L etec at 7200 rpm w 1.71 or 1.62 w 34 cleaver. No problem. It's been done. Going EFI would make it much easier.
Larry Gempp Jr.
Proud HydroStream Powertour Member
Current Ride - 2024 22 Liberator - 450R
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g-guap liked this post
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05-07-2019, 08:22 PM #9Supporting Member
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The best solution is a 300R with a 1.60. Power, fuel economy, reliability, speed, and cool factor. Is there anything else that you are looking for?
Joe
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Instigator liked this post
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05-08-2019, 03:31 AM #10Junior Member
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05-08-2019, 03:32 AM #11Junior Member
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05-08-2019, 04:29 AM #12Junior Member
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I have same boat as these guys, so i know its possible to go realy fast, if i get the right engine. But first i want a fast etec on the cockpitboat
This is a old video of the yellow, with 200xs
Same boat and engine
Last edited by Twister24etec; 05-08-2019 at 07:47 AM.
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05-13-2019, 03:04 PM #13Junior Member
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We going to make a adapter i can have between then 15" 200xs 2.5 midsection and the 3.4L powerhead, then we make a new driveshaft. Then i add a 300map and reprogram the injectiors to give some % more fuel. Then i have a okey and pretty fast engine this summer. 6200rpm, 1.62gr and 34", shold be funny enough the first summer
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05-13-2019, 09:47 PM #14
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05-15-2019, 07:34 AM #15
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Speed Jr. liked this post
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