How much boost 800HO

redline65

New member
Dec 9, 2010
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How much boost , assuming no det, can a stock 800 HO handle? What gives up first? This is assuming a good tuneup.
 

jim

Well-known member
Nov 26, 2007
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Boise
It's all about absolute pressure in your motor. 14.7PSI absolute at sea level. 10PSI absolute at 10k feet. So, if a guy is running 14PSI at 10k feet, you can run 10PSI at sea level with the C12. But I don't see any elevations listed above...maybe the 14PSI was at 12k feet...don't know. I have had great luck running my PG turbo and getting a det code when running a bit too much boost...and backing it off a bit with no issues. So, you could probably start at sea level with 8PSI and C12 w/ turbo domes and slowly increase it to 10K.
 
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