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09-19-2019, 10:35 AM #1Member
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Mercury 2.5 150 XRI Performance Changes
I have purchased a short exhaust tuner, 175 ecu, and Chris Carson Reeds.
If I were to put those things on an existing 150 without doing any port changes would I still expect reasonable gains or without changing the porting to a 175 would it be minimal? This is just a bass boat I am trying to get a little more out of.
I am having trouble finding a place that does port work near me in MN? If anyone knows a place within a days driving distance of MN please let me know.1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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09-19-2019, 11:47 AM #2
Would be cheaper to buy a bigger motor than to do all of that work. Shaved heads is the best bang for your buck
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09-19-2019, 12:36 PM #3Member
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Cheaper to buy a bigger motor then use the one I have with all the parts I already have? I am missing something? Every 175 I am seeing is 4g+ I have 400 into parts and an existing motor?
If mean to get the port modifications done I cant even find someone who does the work locally so I dont know the cost... That was the reason for my question would the modifications I have listed without the port work even be worth it?1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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09-19-2019, 01:16 PM #4
I would think you could find a 175 or 200 powerhead for much less than $4000. Its a lot of work tearing a motor apart and putting back together. Basically doing a rebuild. I guess if you are doing it yourself it wouldn't be more expensive.
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09-19-2019, 01:20 PM #5
I just sold a 175 block for $100 couple weeks ago
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09-19-2019, 01:27 PM #6Member
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Please let me know if you see one. I have a WTB on the forum here and have been all over ebay and craigslist...
Ideas on where to look? I am more then willing to pay a reasonable amount for a core to start from.1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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09-19-2019, 01:55 PM #7
175 are a little harder to find. Are you afraid a 200 is too much power?
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09-19-2019, 02:07 PM #8
Years ago John Tiger did an article in Bass and Walleye modding a 150 XRI, if I remember ended up around 200hp.
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
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09-19-2019, 02:11 PM #9Member
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Not afraid its just the max motor size for the Hull is 175
1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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09-19-2019, 02:31 PM #10
Are you doing the work yourself? new bearings, pistons and rings?
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09-19-2019, 02:34 PM #11Member
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I had planned on it but I would need someone else to do the port work. I have not found anyone locally that does that kind of work...
1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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09-19-2019, 02:36 PM #12
I have a 2.5 200 "EE" block I would sell you for $200 shipped. I cant remember whats wrong with it. I will look later if interested. Only thing Im not sure of is how the 175 ECU will work on the 200. Im a carb guy.
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09-19-2019, 02:38 PM #13
Im sure there are places around you that will bore or resleeve. Port work is a different animal. Only person I know of and trust is James Perry in TN,
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09-19-2019, 02:40 PM #14
Sent you a pm
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09-19-2019, 02:43 PM #15Member
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Thanks for the offer but I want to stay with the 175 just to avoid any issues...
1995 ProCraft SuperPro 180 / Mercury 150 XRI
1997 ProCraft SuperPro 200 / Mercury 225 3L
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