T
toebar
Guest
does putting an after market dump valve on to a 02 b4 leggacy reduce power and are they bad for the engin
tanx in addvance
toebar
tanx in addvance
toebar
Might be in some way if you mean replacing the standard, recirculating one with atmospheric valve.
As it is cheating maf sensor, who expect more air in the system than it really is (remember that you're dumping the pressure to the air instead of back to the system) it may cause overfuelling with it's consequences...
I guess that with the remap the mapper can solve this problem thou.
Anyway for example - my car with HKS SSQV fitted was overfuelling so much that I heard pops of fuel burning yet in the exhaust.
When I put recirculating valve instead - momentarily the problem ended and fuel consumption lowered by about 4l/100km - even despite the same driveing style - from 19l to something around 15l.
I know some people say the consumption is bigger with bov because we like the sound of woosh... but I can still hear it after replacement, so it's not that
(hint - snorkel)
In my opinion - if you're not doing big mods on your car - better leave the standard dump valve.
As it is cheating maf sensor, who expect more air in the system than it really is (remember that you're dumping the pressure to the air instead of back to the system) it may cause overfuelling with it's consequences...
I guess that with the remap the mapper can solve this problem thou.
Anyway for example - my car with HKS SSQV fitted was overfuelling so much that I heard pops of fuel burning yet in the exhaust.
When I put recirculating valve instead - momentarily the problem ended and fuel consumption lowered by about 4l/100km - even despite the same driveing style - from 19l to something around 15l.
I know some people say the consumption is bigger with bov because we like the sound of woosh... but I can still hear it after replacement, so it's not that
(hint - snorkel)In my opinion - if you're not doing big mods on your car - better leave the standard dump valve.
OP
OP
toebar
Guest
great info there man sound for tat 