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Go Back   WakeWorld > >> Boats, Accessories & Tow Vehicles Archive > Archive through September 10, 2007

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Old    Steve S (t5_steve)      Join Date: Jul 2007       08-30-2007, 6:27 AM Reply   
Just curious if anyone has squeezed a few more ponies out of their Merc 350 Mag MPI (315hp) Towsports engine? If so, how did ya' do it... reflash or reprogram the ECM, different intake/induction system w/larger throttle body or something else?

Also, does anyone know if this engine can use the intake (tunnel ram) and throttle body (90mm) from the Merc Black Scorpion 5.7 (330hp)?

I'm not really looking for more speed, just want more power & torque for pulling.

TIA,
Steve
Old    JoJo Snow (josnow1)      Join Date: Apr 2006       08-30-2007, 9:52 AM Reply   
why mess with the engine when you can do the same by replacing the prop? Seems cheaper and less labor required to reach the same goal.
Old    Steve S (t5_steve)      Join Date: Jul 2007       08-30-2007, 11:54 AM Reply   
I have replaced the stock prop with a lowest-pitch prop I could find for my application. It did make a slight difference in holeshot, but not quite what I was looking for. Top end is also important, and I really don't want to sacrifice too much there.

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