LSJ Mean Mini Jetboat
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LSJ Mean Mini Jetboat
First, I am going to apologize for a stranger posting about some random ass project. I know how irritating it can be when newbies join a forum and start blasting with problems without doing there own due diligence in research. I'm been digging around with this project since spring, more thoroughly lately.
Now for the project:
Putting an LSJ in front of a two stage hamilton pump in an 11 foot jet boat.
I'm hoping for some help with ECU choice. I have been weighing the advantages of P17 vs E67 vs other stand alones but I was hoping with your wealth of knowledge you may be able to shed some insight.
Typically these boats run a foot pedal, so I can keep the electric one or go LS throttle body with a stand alone. I'm not sure how the stock one will handle the odd splash. What other issues might I run into running the stock ECU running it as a stand alone? Right now I have been running it on the bench with the start relay hot and the fuel pump controlled with the key. I realize this isn't ideal because of fire, if the stock ECU could be up to the job I would pick up HP tuners and disable the VATS. I don't want to start spending on HPTs if a stand alone would be better.
I have spent a ton of time labelling and sorting the harness with the wiring diagrams on Autozone. If anyone wants a complete zip file of .jpegs let me know. I can put them all into a .pdf as well.
As LSJ Masters how would you do it?
Thanks in advance.
Now for the project:
Putting an LSJ in front of a two stage hamilton pump in an 11 foot jet boat.
I'm hoping for some help with ECU choice. I have been weighing the advantages of P17 vs E67 vs other stand alones but I was hoping with your wealth of knowledge you may be able to shed some insight.
Typically these boats run a foot pedal, so I can keep the electric one or go LS throttle body with a stand alone. I'm not sure how the stock one will handle the odd splash. What other issues might I run into running the stock ECU running it as a stand alone? Right now I have been running it on the bench with the start relay hot and the fuel pump controlled with the key. I realize this isn't ideal because of fire, if the stock ECU could be up to the job I would pick up HP tuners and disable the VATS. I don't want to start spending on HPTs if a stand alone would be better.
I have spent a ton of time labelling and sorting the harness with the wiring diagrams on Autozone. If anyone wants a complete zip file of .jpegs let me know. I can put them all into a .pdf as well.
As LSJ Masters how would you do it?
Thanks in advance.
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Oh, forgot to mention it has to run in open loop all the time. You can't run O2's in the marine word with the water injection in the exhaust. I was planning on disabling them via the tuning manual and HP tuners.
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European Opel Speedster.
Just cut a few unnesessary wires out of the loom and you then need to switch a few things off in HPT. For starters the VATS settings.
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I guess you guys don't see many marine manifolds. Here is mine. The water is injected at the band clamp. It looks like a tube inside a tube. 3" Straight pipe to the transom from there.
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As I understand it, in a boat you don't have the airflow you do in a car. Temperatures in the engine bay can get quite hot and melt wiring/coolant lines etc or start a fire. The injected water keeps the exhaust tubing and all the couplers cool so you don't have to run a water jacket all the way to the transom.
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I have been quoted $1500 for a MEFI 4B unit without an LS throttle body. I'm thinking about giving the stock a go then just test some other systems.
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I was able to get the manifold on the engine last night. Ran into some issues. Any issues with running a 2.2 thermostat housing and using the heater core spigots to the oil cooler? A 2.2 should clear right?
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