i have been reading through some threads and i see many poeple lowering their boost in the winter season, can anybody explain the reason.

i have my evc at 21-22 till almost redline, unsafe in winter?

 

Yes that is an excellent question, I would like to know too.

 

i notice on my e01 that since it got colder, i spike higher than when it's hot... therefore i lower the "set" about 3-4 units..

 

two reasions i can think of

a: less horse power so if road conditions are bad wheels are less likely to break free

b: ha i just forgot the second reasion when i rember ill edit. maby ( when colder air the boost gets raised by its self because of the more condensed air ) ( maby idk )

 

this is what i thought also

 

Yeah... My boost levels raised a psi or 2 with the colder, higher pressure winter air.

 

During the winter I've generally run 18 or so PSI.. sometimes if the weather is bad I'll run a winter map on my UTEC that drops the boost as low as it will go and runs a very conservative timing map, wheelspin is SCARY if you don't want it..

yes, in the winter the air is cooler and denser, therefore your boost levels will read higher on cold days.. Volume and density are two different things, the volume of air has not changed, but the amount of oxygen in that volume has increased. The difference is after it passes through the turbo, it picks up some heat and expands a bit more than on a hotter day.