3406E turbo upgrade

Wg not pinched, Borg I believe stage 1, I heard over 40 isn’t good but asking others they didn’t know

 

Your fine. They will handle 45 psi all day long but your building higher intake air temps above 40 psi. For extended pulls ,for long periods of time I'd try to keep it under 40psi.

All this assuming you actually have a borgwarner. If it is the stock cat turbo 40 would be the limit and more like 35 psi on a extended basis.

 

Boost won’t hurt a Diesel engine alone. Boost will only hurt a diesel if it has the required additional fuel.

Boost alone will never kill a C15

 

When I bought mine it had a 5EK that KW had installed new, including block with 200,000 miles on it.
KW had reprogrammed it from what the previous owner had and it didn't pull anything at all like it with the programming he had in it, so he put a pp box on it and run it for a short while. I bought it and took i off. It always had a small oil seep between the head and block, not really a leak, but you could always see it. I dropped a valve a couple of hundred thousand miles later and had the head off, it never seeped again for several hundred thousand miles, then I pinched ofvthe waste gate line and it started seeping again again. It may have been coincedence, but it seemed odd that within just a couple of weeks it started seeping after the boost was raised.

 

That oil leak is very common on the Es. Nothing to do with boost. Coincidence

 

I know it is common, but everyone I know runs pretty good boost numbers too. lol
It was just odd that for over 300,000 miles mo seep, then as soon as I increased the boost I had it back. lol

 

Blow-by or crank case pressure is not caused by boost. Its caused my wore out piston rings and cylinder liners that let boost/combustion gasses past them and into the oil pan.