Losing Boost

[havin-fun]

Someone told me that I am losing bost at WOT. from looking at my Datamaster file. What would cause that ??????? :shocked!:

 

[AlaskaTy]

KR, the engine will pull the timing when it sees a significant amount. Are you seeing knock under boost? Does your TPS% go to 100 when WOT?

 

[InvisiBill]

I didn't actually look at the file yet, but someone said it looked like a roller coaster. The stock wastegate is pretty crappy, and boost will fluctuate some.

 

[havin-fun]

I'm getting KR and very little advance it quits pulling hard towards upper end.
Tps is 100%. I picked up a 160 themostst today that should cool it down a bit.
Invisibill was kind enough to host my data file http://syclone.invisibill.net/dm/wally2392/wa111.uni

I looked at AlaskaTy's file and the boost looks a lot cleaner than mine. The truck only has 16,000 miles on it so the parts are 13 years old but they should not be worn out. But It could be the wastegate.
Thanks :drinking:

 

[jwaller]

looks like it could use 5-8psi more fp and drop the eng temps.