exhaust temps are high

[mrb2001]

pulling 10000 to 15000 pound loads exhaust temps will reach 1250 easily running empty it will hit 1000 going up hills. the chip is set on lowest setting. the truck has a van turbo in it. i dont have any exhaust leaks. the problem has steadily gotten worse. any ideas?

[7.3HeavyHauler]

I was thinking exhaust back pressure Valve may not be opening all the way, you shouldn't see 1000 empty.

[blue99stroker]

you checked intercooler boots, intake manifold, up pipes for leaks?
also is your filter clamped on tight and all your ducting is tight?
i would check your EBPV like the OP said.
i hope this helps

[Turbostang500]

I have seen 1000 unloaded during this kind of heat.

My advise is to slow down some and let it cool back off. Maybe even go back to a stock setting if you have that avalible.

Only other things would be a bigger turbo.

I don't remember, does the van turbo have a larger exhaust housing?

Also, how much boost are you getting while making this tow? Maybe a different rpm is needed to get the turbo up?
Different size tire or gearing is about the only way there.

[mrb2001]

the van turbo has 1.15 exhaust housing. the up tubes arent leaking but haven't checked manifolds. it doesn't have an epbv valve. runs around 10 to 15 pounds of boost pulling. i'll check the intake side of things see if there is a leak there. could there b something wrong with the turbo itself?

[Turbostang500]

I thought it had the bigger housing.
thats good and bad. It allows more exhaust through (less restrictive) but won't build as much boost lower in the rpm range (not as much drive pressure)

What rpm and speed are you pulling in?
A big grade doing this or relatively flat?

[blue99stroker]

are you getting 10-15 pounds of boost at WOT?
because that is a low number and would cause high egts.
also i think a 1.00 housing instead of a 1.15 would suit you better since you have stock sticks

[7.3HeavyHauler]

That's all the boost I am getting at WOT 13 is the highest I can get, even called around to the stealers hip and they said 10-12 is all your going to get so idk

[chrisgrimes2186]

Originally Posted by 7.3HeavyHauler

That's all the boost I am getting at WOT 13 is the highest I can get, even called around to the stealers hip and they said 10-12 is all your going to get so idk

im not sure what i made stock because i got my chip before gauges but i can hit 30psi at WOT. if yours is tuned that is way low if its not tuned that still seems low but not sure

[7.3HeavyHauler]

I have a tuner but did not make a bit of difference, eventually I want to get a chip just not in the budget right now