Bumpin up my 6nz

looking to tune up my 6nz. would like some help getting in touch with mr. haney.

 

Anyone heard of using a "marine chip" on a 6NZ? I just bought a 02 international 9900i 6NZ w/18sp 455 rears. Pulls real strong... Prior owner is not truck savvy and said the guy he bought the truck from said it had a marine chip?

 

No such thing as a "marine chip" persay.
But could of had a diffrent file flashed into the ecm.
The term chip goes back to the 90s and powerstroke 7.3s and such. No such port on a cat ecm to plug in a "chip".
Clearly trucks prior owner is not truck savvy like you say.
But did make me laugh! Lol
Sounds like classic trucker CB jiberish to me.

 

Yep, you know how it is when someone wants to sell something, they pull out all the stops.
I figured it would be a ECM flash.
How would I go about reading the ECM to possibly find out if it is altered?

 

He is probably referring to the resistor to fool the ECM that the fuel is cold. Been awhile, I even forgot between what wires it hooks up to.

 

You will need a Cat E.T. to hook it up and look at the flash file that's currently in it. Along with the fls/fts numbers and injector codes. But since it's running so well like you mentioned, why mess with it.

 

Don't be fooled by fancy talk about aftermarket tuners or companies that aren't cat certified to tune your truck... I need a few more details do you have a 435 HP or is it already turned up to a 550 HP

 

If you already have it turned up to 550 horse if you want it done right you'll need a polished and ported ceramic coated exhaust manifold and a larger Borg Warner Turbo this will put it at 700 horse with a decent tune now if you use that power you will lose mileage but if driven right you can pick up one to one and a half miles to the gallon as far as I know Harold at Kustom truck has the best exhaust manifold if you look at PTI are Pittsburghs in just a short time their coating Burns off

 

Cat won't turn it up past 550 horse no matter what if you have a 435 horse you need to find out what torque transmission you have

 

What he was talking about was "Marine" related ,but it was the camshaft, probably 800 or 1000 horsepower. Can't discuss that here anymore.