More boost = another dyno tune???
06-19-2006 | 08:06 PM
#1
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Joined: Mar 2004
Posts: 1,399
More boost = another dyno tune???
I have a sts turbo on a stock lt1 engine. Already had it dyno tuned at 5psi low and 7psi high. Just wondering if I went to 8psi on high boost will I need another dyno tune or will I be okay since STS only states a tune on low boost - Mike
06-19-2006 | 08:11 PM
#2
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Joined: Aug 2001
Posts: 252
From: wilmington, NC USA
Re: More boost = another dyno tune???
if you are running a stock ECM on the car, your extra fueling for boost is coming only from the PE tables and form the MAF reading incoming air.. most often you will need to adjust the fuel enrichment in the PE tables when adding a significant amount of airflow over 100kpa.
Chris
Chris
06-20-2006 | 08:49 AM
#3
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Joined: Jan 2004
Posts: 315
From: Jackson, MI
Re: More boost = another dyno tune???
If you already had it dyno tuned at 7psi I would just stay there. The extra 20hp from the 1psi isn't going to be worth possibly messing up the engine, or worth paying to have it dyno tuned again.
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