The build starts, 320 cdi with stand alone ecu, twin turbo

Chris Mallett said:
This looks interesting. Have an idea of what these will put out power wise? And what kind of propulsion are these going to be coupled to?
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Power goal is 400 HP, problem will be to find injectors big enough.
The garretts are ok for 240 to 250 each

Mercruiser Bravo 1 drives I am using
 
StainlessRRA said:
More fragile as compared to gas motors?

I like your thinking!



I'm pretty curious as well, I'd love to see a dyno graph when/if there are any.
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No, compared to a diesel engine from a truck like the cummins.

I don't understand the thinking remark.

Offcourse there will be a dyno, how in the world you think we map these?
 
I wonder if the bravo will hold the torque once you reach 400? Or since these are smaller cid will the torque not be as much as expected?

And you said 2 of these engines. What kind of boat may I ask?
 
Chris Mallett said:
I wonder if the bravo will hold the torque once you reach 400? Or since these are smaller cid will the torque not be as much as expected?

And you said 2 of these engines. What kind of boat may I ask?
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Well, the bravo doesn't like torque going sky high at low RPM, once it gets going there is no problem.

Also we are using 2 little VNT turbo's to control the torque, we are trying to have similar power & torque as a 502MPI (at half the weight :hehe:)

Actually, I am a small waterski boatbuilder, so we build ourself...

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flanges

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Almost done :)

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Intercooler

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Anyone has used these china intercoolers? I want to use 2 of them on each engine...
They any good?
 
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diesel2fast4u said:
No, compared to a diesel engine from a truck like the cummins.

I don't understand the thinking remark.

Offcourse there will be a dyno, how in the world you think we map these?
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I ment I liked the idea of adding a supercharger if she lacks the low end grunt you're looking for. And I figured you would dyno, I'm just saying I'd like to see the graphs when you. :D

Also, that boat looks great! I love that style.(We've always played with Jets and V-drives here)
 
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StainlessRRA said:
I ment I liked the idea of adding a supercharger if she lacks the low end grunt you're looking for. And I figured you would dyno, I'm just saying I'd like to see the graphs when you. :D

Also, that boat looks great! I love that style.(We've always played with Jets and V-drives here)
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Oh ok :) Yeah the supercharger... well it is a pain to fit and keep the engine compact, we will see

Here is an outboard :

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Those boats look like a blast, I wish I could find a similar hull here. The ones we see with a deep enough V are far to heavy.
 
With those water to air coolers and unlimited cooling , ( lake water) you shouldn't have an issue running just one per engine.....
 
only messed up 2 90° before getting it right

I don't like the metal work :(

2morrow more cutting & welding ...

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looking good, are you going to include a crossover between front 3 and back three exhaust manifolds to even out pulses? you could do it as a link from header to header, with a blow off valve in between.
 
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I might recommend you wear gloves while welding, the uv put off by those things is crazy. I get sunburned when I don't wear gloves and sleeves
 
mikmaze said:
looking good, are you going to include a crossover between front 3 and back three exhaust manifolds to even out pulses? you could do it as a link from header to header, with a blow off valve in between.
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I asked my tuner the same thing...

Answer : No need because we use 2 backpressure senders ...
 
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