I have a question for Mr.Haney. I have a 435 hp 5ek.i had a 475/500 rerate done on the ecm without changing the hard parts. The hp is set at 475 now and it runs real strong. My question is how much hp can the 435 iron handle? I was told not to try much more because of the pistons .truth is i dont know what iron i have the engine is a 95 and been oh'ed at least once before i got it. Any advice?
5EK Cat
Discussion in 'Trucks [ Eighteen Wheelers ]' started by 9 Axle, Feb 27, 2009.
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Thanks, I will talk to the tech that set my ecm up for me and try the 550 hp and see what it does. Maybe you can help me with a file if he cant?
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I had a high hp cam put in last year ill have to see what injectors are in it
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Well the engine was rebuilt with a 390 cam for some reason, prob a mistake. So it helped alot ,as far as the jake i realy didnt notice any difference.
Last edited: Jan 10, 2011
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Just got the truck back from the paint shop i will pull a valve cover tommorow night.The cam is a 7653 i think .thanks again for this help,getting good info from people who know what their talking about is hard with these motors.
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Make sure the tech has a generator that will do 3-400 IC files. Most of the generators will not create passwords for these files. When this happens then you have to have the old file with the same IC to flash it back to original settings without passwords. Let's say it's a 319 IC file, make sure he has a 319 IC file before you try to change it to the 435 IC file. Otherwise you'll end up with a non-responsive ECM and the truck will only idle.
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This cover is a pain in the ### to remove. The screws are counter sunk into the cover and torx heads........most of the time the torx bit breaks and the screw head is destroyed and you'll need an air chisel to drive the heads around to loosen them.
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