6.2 Merc modifications
03-02-2003, 05:02 PM
#12
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It is a multiport fuel system. With the 02 sensor you can define the desired A/F ratio and it will correct to that reading. If the base map is right-on then the 02 sensor won't be doing much correction. But, it will give you the ability to get the map really close. As far as an oil cooler we don't have one planned for this boat. He runs on a small lake and will never see long hard runs. It is good insurance though. I may try to talk him into adding one.
Glad you brought it up.
Glad you brought it up.
03-02-2003, 05:58 PM
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You can put the desired mixture in and, the computer will adjust to it... I like that. Do you have any recommendations for an oil cooler? also what exhaust are you going to run? thanks Dwight
03-10-2003, 09:45 PM
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I can not remember all the answers to all of the ?s I had on this subject. I know I should have printed ot off.. What exhaust system are you going to use? Also was there any mods to the current system that you could see helping out? Thanks Dwight.
03-10-2003, 10:18 PM
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Whitey, we're using the Stainless Marine exhaust. I'm using a Comp Cams hydraulic roller, 218/224 duration @ .050. Quite a bit of port work and 2.02/1.60 valves for the Vortec heads. It should be pretty healthy once we're finished.
Bob
Bob
03-10-2003, 10:42 PM
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The cam does not sound allot bigger than the one in there already, does it have a much larger lift? I was also wondering why you did not go the carb route? I am a big fan of fuel injection but it seems as of right now, it is easier to make mods with the carb set ups. Dwight
03-11-2003, 10:10 AM
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Keep in mind I'm doing this for a customer. This is what he wanted and was willing to pay for. I would have gone to a carburetor myself and kept the EFI to reinstall later. Same on the cam. This is a family runabout and he requires a smooth idle. Any bigger cam would get lumpy. It leaves me in a dfficult situation of getting the package just right. He wants the HP, but none of the negative side effects of a modified engine. That's where a supercharger would normally be a better alternative.
03-11-2003, 03:15 PM
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Is the boat a 292 Formula? I read where someone was going to whipple one with the 6.2's.
Brian
03-11-2003, 03:55 PM
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Originally posted by Caincando1
I mentioned somewhere that a buddy of mine has his 292 formula at Hawkeye Marine in Dubuge IA getting Prochargers put on it.
Brian
I mentioned somewhere that a buddy of mine has his 292 formula at Hawkeye Marine in Dubuge IA getting Prochargers put on it.
Brian
