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Thread: E-tec 130hp

  1. #31
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    Quote Originally Posted by sho305 View Post
    WT... my 16 bayliner only does 43gps with the 85 force 55 would be better...lol! My open bow must weigh more...
    E-Tec mate ,,,, go for it!

    Better still ,,,, English Phantom.

  2. #32
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    Well I traded a $150 car for this boat, put a transom in and some carpet, painted the motor, and fixed the seats. It works nice but was a cheap boat. But its faster than a dock by far and tolerable on my little lake, until I can get back to boat projects. Motor had a new block in it. I like the etecs, not too many competing motors in the 90-115 range either. 130 would be real nice on the smaller boats.

  3. #33
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    Just to let you lads know ,,,, I've just taken delivery of a couple of the etec 115's, 130's would be prefered but can't wait for BRP to get their ASS into gear.

    I'll keep you all posted.

  4. #34
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    Right then ,,,,, fitting the etec had a slight problem, the saddle did not match the holes on the transom from the Fitch motor!
    Old holes were pluged and new were drilled.

    Test No:1 showed that the 115 etec gave 2mph more that the Fitch equivelant. Could only pull 5600, so the next step is to raise the engine by one hole. (Engine is still on it's "break-in" period and so double oiling by the way).

    To be continued ,,,,,,,,,,,,,,,,,,,,

  5. #35
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    Ok now we're getting there ,,,,,,,
    Anybody know what the valve in the exhaust does ?????

  6. #36
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    Valve...just guessing but most engines run better at lower rpm/throttle with a restricted exhaust to raise cylinder pressure.

    Unless it is in the port like a sled, they actually change the port timing sort of....usually make port smaller or otherwise restrict it at lower rpm.
    "As government expands, liberty contracts." -Ronald Reagan
    Liberty = boating

  7. #37
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    Sho, thanks; I'll think about that ,,,,,,, tic-tic-tic

  8. #38
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    thats exactly whats up

    Quote Originally Posted by sho305 View Post
    Valve...just guessing but most engines run better at lower rpm/throttle with a restricted exhaust to raise cylinder pressure.

    Unless it is in the port like a sled, they actually change the port timing sort of....usually make port smaller or otherwise restrict it at lower rpm.
    Just like (in the sleds) with bombadier it was the r.a.v.e. valve,opens the exhast port more when needed,better feul economy n less wear on the rotating assembly in lower r.p.m.n more performance in the upper power-band range.

  9. #39
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    Cheers guys, anybody know if the sleds are in a beter/higher state of tuning than the marine equipment?

  10. #40
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    what r ya trying ta tune?

    Quote Originally Posted by waynekerr135 View Post
    Cheers guys, anybody know if the sleds are in a beter/higher state of tuning than the marine equipment?
    If it's a e-tech or a ficht,it's gonna be emm related,it requires a high end service tech.like stoker,the factory's hands are tied cause of law.i'm thinking stoker is one of the only one's that warrenty's his work.

  11. #41
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    I'm trying to find out if anything can be done with a 115 e-tech.
    You mention a "high-end service tech" Stoker. Please explain.

  12. #42
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    Sleds make a lot more HP per cc, but have a more narrow powerband as they have a transmission to help them. Also they make so much power they would likely burn up at constant wot use. Look up the PSI genesis motor for a performance example. A PWC might be better, yet they have the jet to vary rpm so they don't have to run well at low rpm. But at least the PWC can use a pipe, and that is where the real power is....but again a pipe is only good for a certain band of rpm. Some kind of valve and a dual or variable pipe could certainly work. The problem with power is that it shortens lifespan so good reason for the factory to not quest after it...

    If you look up some of the go kart and smaller OB racing stuff, you can find some nasty custom motors made from MX motorcycle motors, some with variable length pipes. Also check the dune racing and hill climbing quads/buggies for wicked 2 strokes.

    The exhaust port valve certainly can help, I think it is the complexity of it that has kept it out of outboards for so long. Still it only has a limited effect as you are not changing the transfer port timing and depending on the valve type some don't do as much as others. They also fill with carbon and have to be cleaned.
    "As government expands, liberty contracts." -Ronald Reagan
    Liberty = boating

  13. #43
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    Raced the 115 E-Tec last weekend. What a differance from the Fitch motor! The hole shot (as I understand you guys call it) was excellent.

    Had to raise the engine by one hole and got 5800rpm (from 5600), so an improvement there.

    Due to the nature of the boat set-up, any attempt to trim out resulted in "Huston Mission Control" advising, lift off the gas.
    Next step is prop work!

    Cracking engine, watch this space!

  14. #44
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    Holeshot=pretty much how well it gets on plane and starts gaining speed. Applies to near anything with a motor for me, such as with drag racing cars that might equate to the 60' ET or how well it hooks up to the track at the lights. With a sled its from when you takeoff to when the skis get back on the ground.
    "As government expands, liberty contracts." -Ronald Reagan
    Liberty = boating

  15. #45
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    Roger Sho, twas pretty dam good anyway.

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