Boost lower since getting cold. Is this normal?
12-07-2007, 10:01 AM
#1
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Boost lower since getting cold. Is this normal?
As soon as it got colder, my boost went down from 19psi to 12-15. Is this normal. I had my indie check for boost leaks and no leaks found. Is this normal?
12-07-2007, 10:51 AM
#2
Yes. Cooler air is more dense therefore not as much boost is needed to achieve the same level of...
performance.
For example my setup peaks at 22psi during the summer months whereas during colder days of winter it barely sees 17psi.
For example my setup peaks at 22psi during the summer months whereas during colder days of winter it barely sees 17psi.
12-07-2007, 10:53 AM
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cold air is a denser charge but ~6lbs lower sounds like a lot...
but if the ambient air is colder the boost will be lower since colder air combusts easier, and you're effectivly getting the same amount of air in the engine. In the RS6 the ecu will turn up the boost above a certian altitiude to compensate for the thinner air
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