aftermarket blow-off valve (BOV)

[alwayz_yummy]

curious lang ako kung ano ang purpose ng pagpalit to aftermarket BOV (aside sa replacement)..

like this:



for example sa kia carens ko na 2.0 crdi-vgt, anu ang mga asahan ko mangyayari? mayroon din bang NA-cars na nagkakabit nito?

[Kratos4age]

pag naka aftermarket BOV malakas ang SINGA..parang vrrrrrroooooooooooommm pag release ng throttle biglang HUWAAAPISH!!!
ewan ko lang kung pwede sa diesel

[alwayz_yummy]

un lang un, no other purpose?

[yapoy86]

pang gas engine lang yan.. kasi wala naman butterfly ang mga turbo diesel engine. sa mga naka butterfly throttle gagamitin yan to release the incoming boost from turbo when the throttle is suddenly closed.

[uls]

purpose ng BOV is to protect the turbo from compressor surge

when the throttle closes (like when you let go of the gas pedal while you shift) the compressed air has to go somewhere

kung walang BOV the compressed air is forced back to the turbine blades. that puts stress on the turbo

the BOV (vent to atmosphere type) lets the compressed air out making that cool sound

meron BOV that vents air back into the intake (recirculate type) so wala sound yung ganun

[uls]

mayroon din bang NA-cars na nagkakabit nito?

that's ricey naman

no turbo pero may BOV sound? para akala ng mga tao may turbo? haha

kung kakabitan mo ng BOV ang NA engine, where does the compressed air come from to trigger the BOV?