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Merc 650 EFI's ????

Old 12-29-2008, 04:13 PM
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Default Merc 650 EFI's ????

There is a 2007 Nor Tech 39' Vee in the classifieds that has 650 efi's. I've not ever seen a thread about these engines. There is a good chance that I will have a boat built this winter and was going to go with 600 sci's but would prefer an EFI's if they are available at the same or near the same HP.

Can anyone give me a comparison? Thanks!
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Old 12-29-2008, 04:17 PM
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I believe the 650 efi's were from Nortechs in house motor program. Probably 525 base engines puffed up a little.
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Old 12-29-2008, 04:22 PM
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They are Nortech's own motors. Mark (Where's Eileen) has 3 of them in his old NT 43V and after 180+ hours they have been bulletproof. They look huge compared to a 525.

He has built 3 boats with NT power and has never been let down by them. He had 625's, 650's and now in the new boat 1000's.
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Old 12-29-2008, 07:56 PM
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Originally Posted by TCBoss302
There is a 2007 Nor Tech 39' Vee in the classifieds that has 650 efi's. I've not ever seen a thread about these engines. There is a good chance that I will have a boat built this winter and was going to go with 600 sci's but would prefer an EFI's if they are available at the same or near the same HP.

Can anyone give me a comparison? Thanks!
thomas I saw that boat at knoxville poker run they are non closed loop motors (500 efi like mine) and I think they were built in house. very hard to get more than 630 hp with out a long block and 572 cubi inch motor on a 500 efi set up. They were probably 630 and they rounded up. They are also not super charged

Last edited by gnorthga; 12-29-2008 at 07:59 PM. Reason: forgot something
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Old 12-30-2008, 09:45 AM
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Originally Posted by gnorthga
thomas I saw that boat at knoxville poker run they are non closed loop motors (500 efi like mine) and I think they were built in house. very hard to get more than 630 hp with out a long block and 572 cubi inch motor on a 500 efi set up. They were probably 630 and they rounded up. They are also not super charged
Gerald,

You were not suppose to see this post. I'm sneaking up on you!!!
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Old 12-30-2008, 08:06 PM
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Sorry but u just fell way behind look at what I am leaning towards. Looks like you will be sneaking up after all.


http://www.teamshogren.com/new-boats...lightning.html
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Old 12-30-2008, 08:17 PM
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you going to pull the triger on that one? Nice
Mark
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Old 12-30-2008, 10:44 PM
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Originally Posted by gnorthga
thomas I saw that boat at knoxville poker run they are non closed loop motors (500 efi like mine) and I think they were built in house. very hard to get more than 630 hp with out a long block and 572 cubi inch motor on a 500 efi set up. They were probably 630 and they rounded up. They are also not super charged

Give the guy who developed them a little more credit than that. Ron Potter developed the NorTech in-house engine program. He use to work at Innovation Marine as one of their 3 top engine builders. A lot of the same ideas and technologies he carried with him to NorTech.

BA
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Old 12-31-2008, 06:09 AM
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Originally Posted by BattleCry
Give the guy who developed them a little more credit than that. Ron Potter developed the NorTech in-house engine program. He use to work at Innovation Marine as one of their 3 top engine builders. A lot of the same ideas and technologies he carried with him to NorTech.

BA
BattleCry, also after NorTech and Innovation Ron Potter started up Potter Performance Engines. Ron is one of the best custom motor builders in the country !!!

Last edited by Superbabi; 12-31-2008 at 06:30 AM.
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Old 12-31-2008, 06:22 AM
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TC Boss 302, sounds like a great boat your thinking of buying. Any questions about the motors give Ron Potter a call. 941-758-5942.
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