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Forum: General Q & A

01-14-2004, 05:38 PM

Replies: 32

Need Help!!502 Mpi Hole In Piston

Views: 8,581

Posted By Jamie Treblas

I was talking to a computer expert all of the...

I was talking to a computer expert all of the ECU's cut the fuel supply off when you hit the rev limiters. The problem is my boat weighs over 8000 # I can't feel it hitting the rev limiters. If they...

Forum: General Q & A

01-08-2004, 06:05 PM

Replies: 32

Need Help!!502 Mpi Hole In Piston

Views: 8,581

Posted By Jamie Treblas

Iam running a 120 T-stat and a by pas hose, but...

Iam running a 120 T-stat and a by pas hose, but no WP Gages. Iam thinking about adding Water prasure gages and fuel preasure gages. Which ones are the most important:confused:

Forum: General Q & A

01-04-2004, 09:08 AM

Replies: 32

Need Help!!502 Mpi Hole In Piston

Views: 8,581

Posted By Jamie Treblas

Have taken motors down further, have problems...

Have taken motors down further, have problems with # 6 cylinder gold color top of piston warping, bottom of all pistons in both motors show signs of heat , gold color. I think I was running WOT on...

Forum: General Q & A

12-28-2003, 06:01 PM

Replies: 32

Need Help!!502 Mpi Hole In Piston

Views: 8,581

Posted By Jamie Treblas

Bob280silencer Thanks for the response, Do you...

Bob280silencer Thanks for the response, Do you know of a injector shop, if so can you give me there name and address Jamie Treblas

Forum: General Q & A

12-28-2003, 08:54 AM

Replies: 32

Need Help!!502 Mpi Hole In Piston

Views: 8,581

Posted By Jamie Treblas

Hi, Thanks for the help! The 502's are serpentine...

Hi, Thanks for the help! The 502's are serpentine belts,the ECU's have about 150 hrs on them, I tried checking the fuel injectors with a pressure gage, the pressure seemed to drop off within 2-3 # of...

Forum: General Q & A

01-14-2003, 06:34 PM

Replies: 5

Hp500efi Upgrade Kit

Views: 1,074

Posted By Jamie Treblas

No, my motors were 502 MPI with stock mercruiser...

No, my motors were 502 MPI with stock mercruiser exhaust. I installed headers and Arizona upgrade at the same time, so I don"t know how much increase was the headers or the upgrade.

Forum: General Q & A

01-13-2003, 08:20 PM

Replies: 5

Hp500efi Upgrade Kit

Views: 1,074

Posted By Jamie Treblas

Installed kit in 2000 Formula fastech, also...

Installed kit in 2000 Formula fastech, also purchased CMI headers. Gained about 8-10 MPH,according to the weather. Put about 75 Hrs. on upgrade, no problems, very happy.

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