Hi Pat, I'm still running "standard" airbox. it had a green filter and a couple of large holes in the bottom - courtesy of Jabba - until this weekend when I finally got round to smoothing it and swapping cold feed to 3inch. The filter is starting to look a bit grubby now so will add a cleaning kit to the to do list. There is possibly a little more induction roar since smoothing it but can't say I've noticed much difference TBH.
BTW I had a couple of instances more recently when I got almost no boost until about 5k rpm (happened a couple of times at castle combe too) which I assumed was a sticking DV? In any case I have now fitted an R1 like yourself. Car is running well at the moment
glad yours is running well. im finding the R1 as good as anything else if not a little smoother.
other than the cars boost settling soon after bt to 1.1bar, instead of 1.7 spikes and holding 1.4 as it did on the journey back from jabba mines been running fine. mines the smaller vf23 turbo and i didnt really know what to expect other than mike had maxed it out. i had a boost controller fitted but no matter what it would go past 1.1bar. it still felt as fast and torque steered as usual.. almost like torque was unaffected.
1 year on they serviced it and found a cracked manifold , replaced it and journey home was a pleasant 1.4
a few weeks later 1.1 again. no spike just 1.1
manifold again? jabbas a march for me so i lived with it.
anyways bought their induction kit and an r1 and magically the car is back to 1.4 and has been for a few weeks.
unlike you boost came in everytime at 3.8k so i doubt the bailey was sticking but it was 18months old and due in my eyes for a new one.
the open cone filter has made the car feel more responsive. i can only think it was being air starved to some extent before hand
jabba service it , replace filter and its going great guns for a few weeks. my green panel filter was only 6 months old but had very uneven wear. a round black patch in the centre and untouched around it. its a large surface area but im not sure it all gets used. maybe smoothing helps this?
i will put my bailey back on and see if my boost drops again. if it dosnt then it has to be the filter change that worked for me