drilling airbox

[joeswoonara]

just putting together a SR190 for a mate of mine going to run it with a 25mm phbh through the airbox with an A.F Clubman air scoop has had the baffle removed .................is it best to drill the airbox or leave as is ?

[Toddy]

just putting together a SR190 for a mate of mine going to run it with a 25mm phbh through the airbox with an A.F Clubman air scoop has had the baffle removed .................is it best to drill the airbox or leave as is ?

I recently built a Mugello 186 and drilled the airbox to help air flow also a mate has a casa with a 25mm phbh carb and he did like wise improved it immensly but do relevant plug checks to jet accordingly

[joey]

...i've run 2x mugello through an undrilled debaffelled air box with 1980's K&N replacement filter.Tuck alot of messing about to jet up. Don't agree with drilling as to me it defeats the object of drawing in cool air. You might as well just bin it.I found that removing the air scoop all together was an improvement.6 years later... now that you can get a decent air filter under the panels {evergreen} i've put 30mm phb's on and WOW! :bouncing:

[joeswoonara]

thanks all for the replys ..............it will be put on a dyno so i think we`ll wait and see what that throws up in a week or two ....if i remember i`ll post and let you know the results