there was a magazine writeup on the STi that found a small advantage to the spray. i can't remember where i read it (maybe it was from Guru's tuning thread on one of the wrx forums), but i'm sure someone else here can find it.chawklit said:So are we sure that the intercooler spray actually does something that realistically helps? Or is it just added fluff?
nah, i think it works when used in the *right* way and the right kinds of driving. it probably has nothing to offer for street use. but for the track, i'm certain there's a benefit. and we know that every sti owner will be headed to the track, so voila!, it's not a gimmick. the evo has it (and a better version since it has a "auto" setting). gimmicks don't tend to appear across manufacturers. my 2cents.chawklit said:I mean, to me, it seems like a gimmick, albeit a neat one.
yeah, the snorting bull effect; that would be cool. to get that much *visible* steam, you need enough water so it wets the engine. (i've done this when washing my car when the engine was hot.) maybe jj's trick would work.chawklit said:The only thing I really want to do with it is to pull up to a stoplight and press the button so steam comes out of the scoop and the people next to me get a good scare! (Would that work?)
it enhances the cooling of the intercooler though evaporative cooling. next time you're very hot, sit in front of a fan. you'll feel nice a cool. now, get a spray bottle and mist your face a *little*; not too much though. you'll feel 10 degrees cooler, if not cold. that's what ic spray does and how it works.kengsta said:whats the point for the ic spray?
from your answer, i think perhaps we do.murley said:Is it just me or does this topic NOT need 9000 posts and this many hours to figure out?
radiators do not dissipate heat by *evaporation*, unless they're leaking. radiators use conduction, just like the intercooler. but the use of the spray adds another mode of heat transfer not used on radiators.murley said:Your car has a radior. It has fins. It has water. Water disipates heat by evaporating. Simple system.