SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: el mojado on March 17, 2020, 01:22:40 PM

Title: Fuel Injection
Post by: el mojado on March 17, 2020, 01:22:40 PM

I'm considering changing to fuel injection. I plan to run an O2 with an adapter between my echaust manifold and riser. How do i keep my water temp at above 160? My understanding is that the computer reads engine temp but it must be above 160. Those running EFI, what are you doing to maintain proper water temp with open cooling systems? Im considering using Holley's EFI. Thanks for any input.

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Title: Re: Fuel Injection
Post by: Flusher on March 18, 2020, 06:51:25 AM

I believe the only way to do this is with a recirculating, thermostaticly controlled cooling system.

Title: Re: Fuel Injection
Post by: FordLover on March 18, 2020, 07:13:55 AM

Funny this got brought up because I just saw this recently.

https://sacramento.craigslist.org/boa/d/sacramento-70s-pioneer-jet-boat/7094797585.html

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Title: Re: Fuel Injection
Post by: mobboss on March 18, 2020, 05:59:01 PM

one Should be able to limit tour water flow??? that will raise water ( block) temp. trial and error. and will probably have to have more than 1 temp gauge , say head temp and block temp.


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Title: Re: Fuel Injection
Post by: el mojado on March 20, 2020, 01:22:30 PM

Whos running EFI with open cooling?

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Title: Re: Fuel Injection
Post by: mash on it on March 21, 2020, 09:26:47 AM

Quote from: el mojado on March 20, 2020, 01:22:30 PM

Whos running EFI with open cooling?

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Most newer Mercruisers are efi, and open cooling, so it's pretty common.

Lower water temperatures are proven to make horsepower. 160 should be the upper limit, hard water and all.

That's all I got.

Dan'l