2016 Silverado 5.3 lt4 blower. Is it normal to see higher boost value in colder weather? Seems like I am between 8-9 in summer and sometimes peak at 11 on my gauge when it’s colder outside, like below 50 or so. Wondering if that is normal or if I’m having issues making it jump that much higher. Thanks

 

its completely normal. Cold air is more dense. Thats why all us boosted guys love this time of year.

 

So 50° F to 90° F is 10° C to 32° C, 22° C difference. By the formula quoted above, that comes to 7.33%. 11 x 7.3% only brings it down to 10.19 psi.
But you need to go by the air temperature entering the engine. Maybe your intercooling is inefficient and the temperature is normal at 50° ambient, but zooms up in the summer.

 

When I was running my supercharger, it seems like the difference was a couple of psi, but when it was cold out, like below 32°

 

I agree that it’s more the colder air but I always feel a difference under 50 degrees. But….. it could be all in my head🤣🤣🤣

 

If on the edge in warmer weather insufficient fueling will be an engine killer. Make sure you're good.