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I had a turbo charged engine in a boat for the last 30 year except for the last 3. My turbo motors with waste gates would go to max boost (I had set for 10lbs) just off idle. The neat thing about turbos with wastegates is I could dial in the amount of boost I wanted, from min. of 5 to max of 15, just by turning a dial on my dash.
My procharged motor will not go to max boost until max rpm. As to why Mercury not doing it, I think the cost and complexity, and peoples fear of them is why. |
Originally Posted by Chris Sunkin
(Post 2347729)
What is it that so many have missed in turbo application that you were able to discover & apply to your setups.
I have 2 friends that bought similar boats back in the early 80's one went the Gale Banks 800HP setup, Other went the roots blower setup. After a few years and a few motors the roots blower guy went Turbos. |
Originally Posted by KNOT-RIGHT
(Post 2347722)
Turbos are superior to any other forced induction engine period.
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I've always understood that turbochargers are much better for the engine than superchargers.
How much horsepower can you get out of a reliable turbocharged small block marine engine? |
Originally Posted by Griff
(Post 2347696)
FACT!!!!!!!!!!!You have to have a load on the engine to make any significant boost on a roots blower.
Rev a roots blower engine slowly up to 5000rpms in neutral and see how much boost you make. Very little, if any. Now put it in gear and mash the throttle. You'll be very near max boost by 2000rpms and stay there all the way to max rpm. |
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Originally Posted by TexomaPowerboater
(Post 2347831)
How much horsepower can you get out of a reliable turbocharged small block marine engine?
23' headed conventional engine around 750 hp reliable SB2 headed conventional engine around 900 hp reliable LS1 style engine around 1000 hp reliable which one do you want? |
Originally Posted by turbo2256b
(Post 2347667)
Turbo's kick A$$.
Worked for Schwitzer for 10 some years in advance turbo design. Perty much fathered the first successful turbine end variable geometry turbo. Also designed the safest and most sofisticated stationary test and burst test equipment. |
Didn't Mercury have quad turbo's on the kilo cig a few years ago? Chief is using turbo's, BYC has some killer pieces as well.
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http://www.youtube.com/watch?v=p4mYHGLAXY0
Nice exhuast by the way. How have they been working? Did you get the pressure pop-off's on your sea strainer? |
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