LML Marine swap

countrycorey

Trust Me I'm an Engineer
Jan 30, 2010
1,512
35
48
LA
Holy crap! That's wild and way out of my price range. The work is excellent and I can't wait to see it all finished. Is this going to your boat or are you building this boat for a customer?


Corey
 

CaptPhil

Active member
Sep 10, 2011
1,012
0
36
Delaware
I'm scared to put a pencil to it, I just do what I can when I can.
I do know a new 40 something Nor Tech with diesels isn't build any better fundamentally ( it does have a better finish inside )but costs over 400 if you could even get this engine/drive. I'll probably wind up around 150-170 when it hits the water, which will still be one of the least expense tournament boats around these parts.

That actually isnt that bad considering the work and the overall package. The boat will run much faster with the I/O's vs some v drives or straight inboards.
 

Hawk 40

New member
Oct 30, 2014
172
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Sarasota
Im going to fish the crap out of it.
We have great fishing in the gulf but the best is deep and requires long runs.
 

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NC-smokinlmm

<<<Future tuna killer
May 29, 2011
5,203
363
83
At Da Beach
That actually isnt that bad considering the work and the overall package. The boat will run much faster with the I/O's vs some v drives or straight inboards.

Add 40 to 50% if you pay someone to perform the refit. That would put it right about 225k, or roughly 50% of the cost of a new one...
 

Hawk 40

New member
Oct 30, 2014
172
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0
Sarasota
Headers finally getting done.
Hopefully the short exposed primary's won't be much of a heat issue.
 

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Hawk 40

New member
Oct 30, 2014
172
0
0
Sarasota
Billet flywheel for marine trans
Heads and cams on the way back from machine shop
 

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Hawk 40

New member
Oct 30, 2014
172
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Sarasota
I need to find the truck side harnesses to convert to stand alone.
Since these are LML's with LBZ fuel systems and engine harnesses, do I need LML or LBZ body harnesses or does it matter ?
 

Hawk 40

New member
Oct 30, 2014
172
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Sarasota
First engine being reassembled after tear down and balance.
Heads machined for LBZ injectors, so cal af cam, billet marine flywheel, new cp3, oil cooler delete and relocate filter, looking at 40% over sticks.
Stainless wet exhaust, waiting to install turbo to fit wet up pipes.
Hopefully dry fit everything later this month and finish fuel system/harness as well.
 

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Hawk 40

New member
Oct 30, 2014
172
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Sarasota
Billet injector clamps/arp head studs.
Any body know if GM Bosch computer can be tuned to fire more than once per cycle??
 

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clrussell

pro-procrastinator
Sep 23, 2013
5,928
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83
Billet injector clamps/arp head studs.

Any body know if GM Bosch computer can be tuned to fire more than once per cycle??


What do you mean by more than once per cycle? Pretty sure these engines use pilot injection therefor firing multiple times per stroke.


Sent from my iPhone using Tapatalk
 

Hawk 40

New member
Oct 30, 2014
172
0
0
Sarasota
Yeah that's what I meant,
Local builder around here kind of makes a big deal out of the fact that their set up does that. I thought they all did, or least we're capable of that.
Funny how much stuff even very good builders can market as their own but is actually nothing more than stock GM with a slight tweak here and there.
Most marine buyers never do more than write the check and wait for the install
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
44
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ZEPHYRHILLS, FL
On a bone stock LBZ I have seen up to 3 injection events(BULLYDOG triple dog, it enabled post injection to make it smoke more:confused:), but theres tables to go up to 5. The LMM can and does up to 5 if in regen. I only run 2 max when I set them up. I just don't see a reason to tax the injectors anymore than that. I've yet to have somebody complain of engine noise doing it.
 

Hawk 40

New member
Oct 30, 2014
172
0
0
Sarasota
On a bone stock LBZ I have seen up to 3 injection events(BULLYDOG triple dog, it enabled post injection to make it smoke more:confused:), but theres tables to go up to 5. The LMM can and does up to 5 if in regen. I only run 2 max when I set them up. I just don't see a reason to tax the injectors anymore than that. I've yet to have somebody complain of engine noise doing it.

I'm still not 100% clear on how to move forward with the harnesses.
I have the LBZ engine harnesses and computers, I assume I now need to get the truck side harnesses. Any ideas on source and cost? New GM? And just what exactly I should be asking for.
I'm running out of things to do on the hull and interior, the engines are on track so the next step is the electrical, also the part I dread the most
 

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THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
44
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ZEPHYRHILLS, FL
When you say you have the LBZ engine harness, does that mean just the harness for the engine, or do you have the one that hooks to the bale connectors and goes over to the fuse box? All you need is the engine harness, and then the one that hooks to the bale conenctors and plugs into the ECM and fuse panel. I know I have the 06 manual trans file somewhere if you need it to flash in, or I'm sure many others also have it. I believe you will need to put some sort of speed sensor on the drive or something to provide the ECM a speed input. I believe I seen where somebody said before they had problems on the dyno because they didn't provide a speed sensor input to the ECM.
 

Hawk 40

New member
Oct 30, 2014
172
0
0
Sarasota
When you say you have the LBZ engine harness, does that mean just the harness for the engine, or do you have the one that hooks to the bale connectors and goes over to the fuse box? All you need is the engine harness, and then the one that hooks to the bale conenctors and plugs into the ECM and fuse panel. I know I have the 06 manual trans file somewhere if you need it to flash in, or I'm sure many others also have it. I believe you will need to put some sort of speed sensor on the drive or something to provide the ECM a speed input. I believe I seen where somebody said before they had problems on the dyno because they didn't provide a speed sensor input to the ECM.

All I have right now are the engine harnesses
 

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