Engine/Transmission (1998.5 - 2002) How much is too much boost?

[klaybus]

Just installed DD2's & with an EZ unloaded I can hit 34+ lbs of boost. My biggest concern is creating too much boost causing problems such as blowing a head gasket... . What do you think? How much boost are you guys seeing?



TIA,

Clay

 

[Slightly Modified]

With the comp on my truck I can hit 34 lbs on level 5. From what I have heard you won't have any head gasket problems until your boost gets up in the 40 lb range and up. I may be wrong though, won't be the first time.

 

[Big_Daddy_T]

I ran in excess of 40lbs for some time. No problems. If you have a stock turbo It will do fine below 36lbs. Try not to go any higher than that. Worry more about the turbo and less about the gasket.



I could push easily up to 48lbs. Gaskets start to go at 50. Definitely something needs to be done above 60.

 

[DHatfield]

My truck was fine with 38 PSI boost, but as soon as I did some changes and hit 50 PSI boost the head gasket popped very shortly thereafter (less then 1 day).