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Any Volvo Penta whizzbang ECM experts in here ???

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Old 01-23-2023 | 08:43 PM
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Originally Posted by Dragracer_Art
Im trying to keep it simple and avoid running aftermarket engine management if possible...

Larry Hofer says the GXi ECM is the way to go with his 525/600hp kits... so I assumed it wasnt too horribly bad.
Cant you get a name from Larry or send it to Larry to sub out to reprogram?
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Old 01-24-2023 | 05:40 AM
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Originally Posted by Keith Atlanta
Cant you get a name from Larry or send it to Larry to sub out to reprogram?
Larry said he cant do anything with the newer Volvo Penta ECM's... or I'd just have him program the existing Gi ECM. He's the one that suggested the GXi ECM.

I know others have been able to get into them and reprogram, but that's on a "who you know" basis and I'm just a nobody in the boating industry.
I've already emailed numerous go-to names and they all say the same thing... "we cant program those"

There is a local guy here that says he can do it... but we haven't been able to connect yet... and I still have my doubts.
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Old 01-24-2023 | 07:37 AM
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no one will post a video or say they can do it because everyone has gone underground its still there but not discussed on web sites or videos as the epa has folks reading and watching the web then go after them with a vengeance theres many videos of shops being raided by a swat team
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Old 01-24-2023 | 07:54 AM
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At this point I'd say your easiest route is aftermarket engine control.
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Old 01-24-2023 | 08:17 AM
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Originally Posted by boostbros
no one will post a video or say they can do it because everyone has gone underground its still there but not discussed on web sites or videos as the epa has folks reading and watching the web then go after them with a vengeance theres many videos of shops being raided by a swat team
This is why I wont mention my local guys name.

The whole locked-down ECM thing I think is complete crap... as I OWN the item in question and should be able to use and/or modify it however I choose... No different than changing jets in a carb or twisting the distributor... but I understand what you are saying. "Loose lips sink ships"

What doesnt make sense to me is why certain ECM's can be tuned, and others are verboten and cursed.
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Old 01-26-2023 | 05:33 AM
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Originally Posted by TomZ
Reach out to John Mosetti (BUP) at Boats Unlimited - he's in the Houston area. He's really good with the factory ECM thing. Not sure about Volvo specific, but I know that he is able to repair the GM ECM at the board level. Worth a shot.
https://www.boatunlimited.com/
Spoke to John the other day and yes, he can work on these ECM's if needed, but cant do anything with the tune other than load a factory tune.

This EPA stuff is really a bunch of BS.

We have stuff like HP Tuners and a few others for modifying tunes on cars... yet NOTHING for marine use. Heck... even my 2020 Tundra can be tuned via HP tuners.

Looks like I will be stuck with running the factory VP GXi tune or going to some aftermarket engine management system unless my local guy can do something with it.
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Old 01-26-2023 | 02:28 PM
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Originally Posted by Dragracer_Art
I'm trying to make some minor cheap upgrades
Originally Posted by Dragracer_Art
Mo powa
These do not coincide.
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Old 01-26-2023 | 02:41 PM
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Originally Posted by Griff
These do not coincide.
Griff,

What is the phrase....? Cubic Dollars....?

Thanks. Brad.
(937)545-8991
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Old 01-30-2023 | 05:47 AM
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Originally Posted by Griff
These do not coincide.
I think there are a re few proven weak points on these 8.1's that can be improved upon rather cheaply.

The HO cams are on ebay @ $300 so I grabbed one of those and a couple spares to hang on to. They are bigger than anything Comp Cams offers in marine cams.

I found the 8.1 GXi ECM and harness in one of the facebook groups. Saw a guy had a VP GXi engine he was repurposing for his truck... so I asked if the ECM and wiring were still around. Got it for $550 shipped to my door. May or may not need the harness... but it looks like the ECM is a close enough mfg year that it will plug right into my existing harness.

On a side note... I HAVE spoken to exactly two guys that are familiar with these newer VP ECM's and both tell me it can be tuned.

If I knew what software to buy, I would just do it myself. I really wish HP Tuners would dive into the marine industry.
Attached Thumbnails Any Volvo Penta whizzbang ECM experts in here ???-ecm.jpg   Any Volvo Penta whizzbang ECM experts in here ???-vphocam.jpg   Any Volvo Penta whizzbang ECM experts in here ???-hocams.jpg  

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Old 01-19-2024 | 02:16 PM
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Found this thread looking for an ecm with your part # just curious if you decided to keep the original ecm if not would you be interested in selling it thanks please give me a call @513-503-6641 my name is Dave.
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