Hello

From what I could learn, air boxes of the Vantage N400 are better made than the standard Vantage (4.3 liters).
As I'm going to buy the filters in Stuart, do you know if I can adapt these air boxes on my Vantage and where I can get them.

Thank you for your help!

Vincent

 

UP!

--> Stuart, any idea?

 

The 4.3 Power Kit ( I am pretty sure this is the same as n400) offers a different air box that has a valve/flap that opens at higher RPM. Switch is located at the "top" of engine, controlling the "new" airbox below (actually 2 one on each side of car - this is all part of the Power Kit - also revised software in ECU).
I have had this installed on my car and opted to remove the new boxes and drill holes in my original boxes and use K&N air filters. This provides increased air at all RPMs instead of just higher (over 4500) RPM.
To directly answer your question the valve in the airbox is the only difference in the standard vs. n400 airbox.

 

A big thank you Michael for your reply. I saw on another post because of the holes in the airbox, but I think that this is not a good idea. Indeed, it is necessary not only that the air flow is important, but it is also that the air is as fresh as possible. In piercing and boxes, I think the hot air from the engine must be directly aspirated. Knowing better 996tt, maybe air boxes are the Aston in a cold area. Can you confirm or deny my words?
Another question, is it difficult to access these boxes look like?
Thank you very much, Michel (I see that like me you spent the 996tt at Aston)

Vincent

 

I understand your comment in reference to the 996tt airbox and hot air. The Aston sir boxes are in a different area than the Porshe. Look at the front of the Aston and the air boxes are very low, left & right located very forward of the front axil line. You can not quite see them but they will pick up air prior to the engine. The primiary pick up is on top, forward of the radiator visible when you lift the front hood. By drilling the holes I was actually copying what the factory did w/ the Power Kit or n400. I think the only concern of drilling the holes, is picking up water if you run your car through a deeper puddle (or go 4 wheeling on the beaches!). I probably drilled too many holoes but if you follow the factory pattern where the flpas are, then I think you will be OK.

 

LOL - my typing is much worse then your English ...

 

Thank you for your reply.
If hot air is not a problem, maybe he should drill holes on the opposite side to the ground to avoid the problem of water and dust

 

Fortunately you do not hear my accent

 

My car sits very low, and I just want to caution about water. If you put the car up on a lift and pulled the air boxes you can see where the holes could be drilled in a top area. The AM Power kit is also nice - I just wanted a bit more air all the time. I also have RSC 200 cell cats and "open" exhaust (does not open at high RPM like stock exhaust) so more air in and out.

 

Ok, i have my "open" exhaust too and a remap by RSC. My next purchase is the new filter by Stuart and the 200 cell cats.

My only problem is to put myself the new filter and to work on the airboxes.

Thanks Michael for your time

 

Enjoy the install - if you get stuck I think any good shop can do this work ... perhaps a past Porsche garage ? I have pictures of my drilled air boxes (swiss cheese - I got a bit carried away w/ the hole saw) ... send me a PM if you want to see.

 

Michael:

Would you mind please posting a few pictures of your drilled airbox? Maybe I should do this too????

Thanks,
Adam

 

https://www.6speedonline.com/forums/...vantage-2.html

 

Vincent - thanks for linking my earlier post. If you don't drill the very bottom (like I did) then you probably have no issues w/ deep puddles of water. The AM Power Kit "flaps" (they open and close) are only in one high section of each box and measure about 4 inches by 2 inches - nice addition but not to big (I still have them sitting in my garage). Again, I wanted to try a lot of air and could bolt the power kit boxes back in if I totally screwed up.

 

I should also add that if you drill - make the holes symmetric in reference to each of the 2 boxes - will help the ECU as it measures air flow. I did not but got lucky w/ the ECU.