987 v 986 Air box

[Reebuck1]

I just used a piece of plastic I cut from the air box and RTV-ed (hot temp.) it to the air box. It works great and I do not have to worry about vibration or heat. I was concerned about the plastic welding and its potential strength.

You will have to use a long 40mm bolt and finder washer to hold the air box from the inside.....or at least I had to.

[KRAM36]

Originally Posted by Reebuck1

I just used a piece of plastic I cut from the air box and RTV-ed (hot temp.) it to the air box. It works great and I do not have to worry about vibration or heat. I was concerned about the plastic welding and its potential strength.

You will have to use a long 40mm bolt and finder washer to hold the air box from the inside.....or at least I had to.

Which bolt number are you referring to?

[Reebuck1]

The bolt goes through the hole that #10 and #6 previously used. The fender washer is large enough to cover the larg hole and hold everything against the inner fender side wall.
When you tighten the bolt it pull the air box to the side wall helping point #2 down towards the ground making it harder for water to get in. Good luck !!

[KRAM36]

Originally Posted by Reebuck1

The bolt goes through the hole that #10 and #6 previously used. The fender washer is large enough to cover the larg hole and hold everything against the inner fender side wall.
When you tighten the bolt it pull the air box to the side wall helping point #2 down towards the ground making it harder for water to get in. Good luck !!

That's a great idea. I've order #6 and #10 from 3 different places. 1st place canceled the order, said they couldn't get the part, 2nd place said it will be back ordered up to 30 days to get the part, called a dealership and they said it's a Germany only part 6 weeks to get it. I placed an order with ECS Tunning, says it with ship in 6 days.

If ECS Tunning says back order, I'm going the bolt route.

[notech]

I keep Torque App constantly connected to ECU for real time reading.
Unfortunately I haven't saved my logs before the airbox and throttle body swap.
Is anyone running it?
I'm particularly interested in your stock max MAF cfp values / O2 values.
thanks

[notech]

One more question,
during the airbox swap, mechanic used a different boot to connect the manifold, he put one with no hole, therefore that little tubing is not connected anymore.
Anyone knows what is that for? Can I drive without reconnecting it? any harm?
much appreciated

[j.fro]

That little hose connects to the fuel pressure regulator. It adjusts fuel pressure relative to manifold vacuum (throttle opening). You're gonna need it.