Motorsound? Caliper? Help?
#16
Nordschleife Master
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That is pretty slick.
My cover had the pattern on the back, so I used those markings as my template. I definitely heard a difference in intake growl after drilling the holes.
My cover had the pattern on the back, so I used those markings as my template. I definitely heard a difference in intake growl after drilling the holes.
#18
Nordschleife Master
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Make a CNC template and we all go home happy! ![Cheers](https://rennlist.com/forums/images/smilies/beerchug.gif)
![Cheers](https://rennlist.com/forums/images/smilies/beerchug.gif)
![](http://www.leadermacusa.com/Images/templaterouter/system.jpg)
#19
#22
Rennlist Member
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For anyone wishing to drill holes in their stock airbox cover, here are the details:
Upper zone: 8 columns of alternating 12 and 13 holes.
Lower zone: 8 columns of alternating 10 and 11 holes
Hole diameter: 4.2 mm or 0.165" (No 19 drill bit).
Hey, your pic looks damn familiar.
Upper zone: 8 columns of alternating 12 and 13 holes.
Lower zone: 8 columns of alternating 10 and 11 holes
Hole diameter: 4.2 mm or 0.165" (No 19 drill bit).
Hey, your pic looks damn familiar.
![](http://edelweiss.smugmug.com/Cars/Porsche-Technical-Stuff/Air-Filter-Cover/i-76wx2RR/1/L/PA200013-L.jpg)
#23
Rennlist Member
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Those are the only countersinks I now buy. (CS series for 82 degrees)
On a job like this, you'd twist them by thumb and index finger.
#27
Instructor
#29
Rennlist Member