This might be a stupid question but : Will warmer weather make the 2.0l boost less? All fall and winter I would hover right above 20 psi on my guage, now that summer is here and it is like 80-100 degrees out, I'm not going over 16.5-17. Any ideas why??

 

This is all true my friend. Air temperature affects air density. PV=nRT

 

correct.

 

So I have nothing to worry about? I was starting to think that I broke something. I would hate to tear apart my intake, manifold etc. if the boost loss is normal.

 

yes its very normal...i'm boosting just under 15lbs with my 2.9 on during the summer.

humidity plays a big part in that as well

 

Well if you go from 20 to 17 or 16 I wouldn't be so sure that nothing is wrong. I could see like a 1-2 psi of boost drop but not 3-4. To me that just doesn't seem right.

 

i think ur fine cause im stock pulley right now and i live in virginia. during the day my max boost is just over 10. maybe 10.5. at like 1 in the morning though i boost 12.5. its been 100 degrees here during the day and only like 65-70 at night. i think thats what the difference it.

 

I hope that is just the temp, I have other things to spend my money one ( ie upgades ) not repairs.