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Old 09-06-2006, 11:42 AM   #19
grtn316
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Re: Dodge Cumming Turbo Diesel Tuning...

Update...


Last night, I took a look at the truck and found a few things...

1) oil ontop of the motor (I suspect its coming from the valve covers or pcv valve. Truck has 70k miles on it)
2) When the truck is in race or extreme mode, egts cleared 1000 F easy . It would go up really fast as if it wasnt gonna stop. When he let off, it would go up to about 1200 F and then slowly drop off.
3) We set the boost to 35psi and it would peak at about 24psi. No visible boost leaks. Its sealed really good, so I kinda doubt theres a leak unless 1 of the pipes busted and theres a hole in the bottom that I didnt see.
4) He has a 4" tip and stock turbo back piping (3" ?)


Hes been driving to truck around for a couple weeks and I'm sure hes been beating on it. Anyways, I let him know that his egts are really high and theres something wrong with his truck. @ cruise egts are around 600-700 F and @ cruise or full accel intake temperatures are @ 99 F.

I know that the 4" turbo back exhaust pipes may help his boost issue and EGTs but I kinda think theres something else going on since he was boosting 30ish psi a week ago.

Could those high temps have already damaged the new egt probe?

Anyone know what could be going on?
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