Duramax 6.6 boost
I have a duramax 6.6 LMM turbo diesel in my 2003 H-1 Hummer wagon. I recently installed a auto meter boost gauge that reads 30.1 under heavy accleration wide open throttle. Is that boost low, medium, or high? I am new to diesel engines except back in the 60's I drove my dads IH 560 diesel with a Turbo charger by M and W with a straight pipe that worked great plowing fields and made tons of smoke! Please tell me what you think!
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Is everything on the engine stock? 30 psi would seem normal to me. I can easily hit 35psi on my stock turbo. As long as you have no codes and functions as it should you should be ok to keep going.
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30 seems high for stock programming, my 06 LBZ only spiked 26 and leveled at 24 on hard pulls with a blocked egr and stock setting. Highest tune only saw 30 and backed to 28-29.
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