More boost the answer...re-visited

[The patriot]

Allright, I adjusted my wastegate to give me more boost. Actually I'm running 35-37 psi. My question is, is this too much boost? Will I hurt the turbo, or significantly shorten it's service life?

This definetly helped in my previous high EGT problem. I cant get it over 900 now!!!

BHAF is in my future. Before the filterminder didnt move. Today it says it's 50% used up!!

Here is a link to my original post.

https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=27605&highlight=370s



TIA

Eric

 

[illflem]

Eric, glad you solved your problem. The higher boost won't hurt a thing, but you are about maxed out on it. Any higher than 38-40 doesn't do any good whatsoever

 

[SlyBones]

Seems like somewhere along the lines, I recall that too much boost can start making EGT's go up. Once you start getting past the end of the turbos efficiency map, its spinning so fast it starts heating up the air. I believe there are posts where people have mentioned lowering boost to get lower EGT's. I am a little fuzzy on this still, but I think 36-38 psi is max for a stock HX35. -- If you need more boost that this to keep egts down then you need to step up to a PDR HX35, HX40, etc. where you have a higher efficiency map.

 

[The patriot]

Originally posted by SlyBones

Seems like somewhere along the lines, I recall that too much boost can start making EGT's go up. Once you start getting past the end of the turbos efficiency map, its spinning so fast it starts heating up the air.

Thanks for the replys guys.

Sly, I dont think this is happening with mine. I can really beat the pi$$ out of it, and I'm blown away at how low an EGT it's giving me. Lower than stock!!

I was thinking that the turbo is really working hard to get me this much boost, just didnt want to grenade it.

Eric