Ford Fiesta ST Forum banner
1 - 11 of 11 Posts

·
Registered
Joined
·
49 Posts
Discussion Starter · #1 ·
getting close to taking delivery on my car and i dont know about you guys but i wanna make some noise lol
has anyone seen or heard of fitting a blow off valve on our cars, if it affects performance, or conflicts with the factory bpv?
 

·
Registered
Joined
·
49 Posts
Discussion Starter · #4 ·
yes i know that.... but seeing as i dont have the car yet, i havent got a look at the factory setup but i thought i heard the bpv is right off the turbo... hence starting the thread to see if there is a method of deleting this or....?
 

·
Registered
Joined
·
908 Posts
From what I understand, the traditional blow off valve sound comes when it vents to atmosphere while the OEM systems have to recirculate so that the MAF isn't measuring air that isn't being burned.

The BOV is also there to protect the turbo so that closing the throttle doesn't make the compressor wheel hit a wall of air and decelerate instantly. A change might add noise but you have to make sure it does its job too.
 

·
Guest
Joined
·
395 Posts
They have hybrid valves that vent but don't trip the MAF/ECU. I know a couple tuner companies made them for the Focus ST - milled aluminum, they were nice - but they seem to have been discontinued... always a good sign.
 

·
Registered
Joined
·
199 Posts
I think we've learned by now that a bov on a car designed for a bpv is purely for the sound. There's no function there as has been pointed out, if you want to make some noise at the detriment of performance and reliability, go for it.
 
1 - 11 of 11 Posts
Top