What do you think of this as an option Warren? If I drilled a hole in the pipe, then stuck this through the hole and used the weld on lip to bond it in? 

Haha sounds awesome turbos have definitely come a long way. And with the ease of making power on ethanol, there's no way I will ever catch up to my cars ability

Ha Ha, absolutely. In my book anyone who can out drive a well set up car with +200 hp should be doing it as a career.
Showing my age now Used to run a Sierra Cosworth with a turbo the size of a dustbin lid, damn thing was un drivable. Turbo would take the length of the straight to spin up, it would come on boost and then try and kill you at the next corner.

Warren

Carbon Copies Ltd

Oh no where near haha. I don't have enough opportunities to get to the track to be a good enough driver to get the most out of 500rwhp

Old school rollers so that's at the wheels not the flywheel. I would have been glad of the extra 7 or 8 when I was racing. If it doesn't make a difference to your lap times then you haven't reached the limits of your current set up yet.

Carbon Copies Ltd

See I wouldn't be fussed about numbers like that. I know it shows improvements can be made, but it's not going to affect the my track times. Do you know what sort of dyno it was run on? Hub or roller? Bhp makes me think hub... In which case it's even less than what it seems. 

'

Its some time ago now but if my memory is correct it was around 4 or 5bhp. That was a 2L Zetec running Suzuki GSXR TB's and Megasquirt. I can dig out the data if you are interested. The final figures with the new airbox were up around 8 bhp over the standard airbox/filter.

Carbon Copies Ltd

Interesting... What sort of differences were you seeing? With what sensors? I did some back to back testing on mine when I switched from MAF to MAP. The air flow meter had the sensor housing protruding into the middle of it, with easy more surface area than there would be with my 10mm fitting bonded onto the inside. There was 0.2hp difference between MAF and MAP, with everything else kept equal.  Given that the dyno reads slightly different every run, I can't even attribute that to the AFM itself. The air temperature probe on the other hand, had a huge affect on power levels. That needs to go as close to the inlet manifold as possible. 

Me neither   I did some airbox development with an engine tuner friend of mine and the boss position for sensors had quite an impact on the overall power figures, and the ability to map the thing correctly.

Warren

Carbon Copies Ltd

It is the same as having a sensor boss inside the pipe. Of course it's going to obstruct flow from a physics point of view, but realistically that flow isn't going to have much affect on the cars power. Might make 1 or 2 HP less, if that, but I'm no dyno queen