This I know. The stock BOV is good enough that you won't need an aftermarket one. What I am saying is, the intake makes it sound better.
The Civic does not have a BOV (blow off valve), it has a BPV (bypass valve). Blow off valve vents to outside the intake system whereas a bypass valve recirculates the vented air back into the compressor inlet.
I assume this is to maintain boost efficiency for a tiny turbo?? So technically an aftermarket BOV would reduce overall boost, decreasing engine power?
Not at all. The MAF is on the intake. All air that comes in goes by the MAF and is metered. This tells the engine how much air there is so it knows how much fuel is needed for optimal blend (not counting changes from a tuner). When you let air that has been metered out of the system, the car still puts the amount of fuel for the mass of air it thinks is there but is now less than what is actually there, causing a rich condition, not ideal. Both a BOV and BPV are there to prevent damage to the turbo from compressor surge (air pressure after the compressor is actually higher than what the compressor itself can physically maintain), which will happen when you are on boost and let off the gas pedal closing the throttle body, all that boosted air need to go somewhere and the only way is back to the turbo. The BOV or BPV will then open once the pressure is above its set limit and will either vent to atmosphere in a BOV or will recirculate the air back into the turbo inlet in a BPV. Compressor surge can damage a turbo if not properly handled. Both system technically work on the car but running rich has its negatives including increased carbon buildup, lower mpg, and can foul O2 sensors.
That's good to hear; I was nervous about having to remove the front bumper but if it's just the underside panels that makes me feel a lot better. Going to do this on Saturday barring any disasters.Pretty simple install. Didn't have to remove the bumper just the underside panels. Took about 30 minutes start to finish
Cutting out that honeycomb is probably not the best idea, as it will guarantee that your filter get wet. With it being tucked above the lower shield, it will stay a lot drier.
yeah that's my main hesitation. Then I looked at the injen hydro shield to help with that but not sure how well they really work
Did you have to make any adjustments to the front bumper, i.e. make openings in the fog light grills to allow the air to enter? or is sufficient with the grill and etc. If you did make changes, possible to post a picture of the front end?Pretty simple install. Didn't have to remove the bumper just the underside panels. Took about 30 minutes start to finish
No adjustments needed. It fits perfectly
Has anyone independently dyno’d This Intake or logged iat’s??
no changes were needed. I have seen some people cut the fake mesh to match the passenger side for better air flow, but with that you run a higher risk of hydrolock
