Airbox mods
 

Just thought I would share my evening of tinkering with the air box. I took it out and removed the baffle in the inlet. That restricts the inlet pipe down to probably 2/3 of its actual size. I then noticed just below the headlights, there is a circular panel that is spot welded in two spots. It was about 2-1/2" in diameter, so I poped it out. I figured that would give more cool air potential for the air box to suck in for the holes I was about to drill! I then took my 2" hole saw, and cut three holes in the front of the box.

The results seem good! A little more turbo noise when it spools (which I like). Now the box can actually flow enough air to take advantage of the huge filter.

The butt dyno indicates that it pulls better above 3k rpms, but that could be wishful thinking... Either way it definently didn't hurt performance any!

Jason

Be careful if it rains where you live! the 245D has a similar hole. I pulled out the rubber plug that fills it, just to see what would happen. We had a rain, and the air filter got drenched and needed to be replaced.

I'll keep an eye on it... The area the hole went to is behind the bumper so I wouldn't say its directly outside where it will get hit with water from the tire or rain comming in. I'll watch it next time it rains.

Jason

check www.turbobricks.com, they have an article about that

I had read it before, it really talks more about restrictions in the turbo 7 series cars. It sounds like I did the right stuff though. Looking at the box, the snorkle to the fender is an obvious restriction with that baffle tube stuck inside it.

Jason