I am a high perfomance boat builder in Europe. With our feul prices we have tons of clients who are asking us for dieselpower.
We want to use a bravo style drive, because almost every boat is equiped with this style of drive. The known problem is that these drive cannot handle the massive torque of a diesel engine, on top of that the powerband of a diesel is shorter then a petrol engine.
I decided to use my own boat as a test case, this is a waterski-race boat with a blown chevy 540 making +/- 800HP.
The dieselengine I decided to use is a cummins 12V 5,9 making 500HP at 3000RPM and 950 FTlbs at 2000 rpm.
If I would use a speed increaser gearbox of 1:2 on this engine, in theorie it could make after the box 1000hp at 6000 and 425ft lbs at 4000 rpm correct? This is actually very close to my petrol engine.
My questions :
Anyone already tried it?
Any leads on speed increaser gearboxes?
Thanks for the help,
Raf
We want to use a bravo style drive, because almost every boat is equiped with this style of drive. The known problem is that these drive cannot handle the massive torque of a diesel engine, on top of that the powerband of a diesel is shorter then a petrol engine.
I decided to use my own boat as a test case, this is a waterski-race boat with a blown chevy 540 making +/- 800HP.
The dieselengine I decided to use is a cummins 12V 5,9 making 500HP at 3000RPM and 950 FTlbs at 2000 rpm.
If I would use a speed increaser gearbox of 1:2 on this engine, in theorie it could make after the box 1000hp at 6000 and 425ft lbs at 4000 rpm correct? This is actually very close to my petrol engine.
My questions :
Anyone already tried it?
Any leads on speed increaser gearboxes?
Thanks for the help,
Raf