Holley sniper efi
09-03-2020, 08:02 AM
#31
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The following 4 users liked this post by ICDEDPPL:
09-03-2020, 10:40 AM
#33
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That would be sweet. On my CC the digital Suzuki screens take the GPS speed from my Garmin over NMEA2000 and then uses the fuel flow rate calculated from injector pulse width to give real time nautical mpg. Very fun to play with boat speed and trim to optimize that number.
09-03-2020, 02:25 PM
#35
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Clean install ICDEDPPL, nice looking.
Iit is a bit strange they look like carbs, I mean why have what looks like float bowls. Are those connectors that come off the ECU water proof?
Iit is a bit strange they look like carbs, I mean why have what looks like float bowls. Are those connectors that come off the ECU water proof?
09-03-2020, 05:43 PM
#37
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None. But the DUI does require a 12g wire from the battery. I set up a power block on the transom and run all of the needed power off that bank of relays using the OEM wires as triggers. That ensures that everything is getting the power it needs.
Also, DUI recommends a spark plug gap of 0.055 which is ridiculous. People have had better luck staying under 0.040.
Also, DUI recommends a spark plug gap of 0.055 which is ridiculous. People have had better luck staying under 0.040.
Do you have pics of the install? What engine do you have the Sniper on? What boat?
I've got tons of questions from install to more specifically tuning. Mind if I send you a pm or email sometime?
09-03-2020, 07:30 PM
#38
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Nice, yeah I was aware of that recommendation and yes, pretty silly to gap plugs at .055. I don't have the D.U.I. yet and will wait until the winter to do it along with either the Sniper or new carb. I'm also doing a compression test on my higher hour 454 mag and depending on results I'll more than likely be pulling it to refresh it over the winter.
Do you have pics of the install? What engine do you have the Sniper on? What boat?
I've got tons of questions from install to more specifically tuning. Mind if I send you a pm or email sometime?
Do you have pics of the install? What engine do you have the Sniper on? What boat?
I've got tons of questions from install to more specifically tuning. Mind if I send you a pm or email sometime?
I don’t have any pics but the install is very straight forward and the directions are pretty clear. Loads of info on the holley boards as well.
I went with the Weldon 600A pump as they can lift as well as push.
I was lucky to already have a bung in the fuel tank for the return line. I believe I ran 5/8” fuel lines everywhere.
The DUI has been a great ignition for me. The previous owner just used the OEM 16g wire to power it. When I wired it properly it picked up 500 rpm just like that. I set the base at 18° and 32° all in.
It’s on a fresh 509 that *might* be close to 600hp in dyno trim. 272 Baja Islander.
09-03-2020, 08:29 PM
#39
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I think the whole 'it looks like a carb' is on purpose, hence the name "Stealth" I can see why some would not like that look .
The bowls house the injectors, map etc.
I like the old school look of the carbs on top of a 10-71 with the modern efi set up .. one advantage everything bolted right up , all the throttle linkages lined up as well as did my flame arrestor .
Yes that is an Air horn.
The bowls house the injectors, map etc.
I like the old school look of the carbs on top of a 10-71 with the modern efi set up .. one advantage everything bolted right up , all the throttle linkages lined up as well as did my flame arrestor .
Yes that is an Air horn.
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09-03-2020, 08:40 PM
#40
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Are you running distributors or coil packs? When I finish my Holley HP install I want to ditch my current Merc distributors and Crane HI-6M's and allow the HP to control my timing. Just don't know what direction I want to go.
