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BMC Carbon Airbox
http://www.gt4dc.co.uk/forum/viewtopic.php?f=1&t=746		 Page 1 of 1
Author:  stevenb [ Tue Mar 21, 2006 1:45 pm ]
Post subject:  BMC Carbon Airbox
Guys, your opinions please.

I have thought about many induction kits and the K&N was going to be my choice. However I have contemplated using the space where the resonator box sits.

If I were to buy a BMC system I was thinking of mounting it where the resonator box would be......then pipework into the engine bay, then pipework straight onto the AFM via an adaptor. I could customise the the intake from the bottom left mesh (where the fog light is on other gt4's) using a finer mesh to stop debris getting sucked in.....this would leave only a short travel distance for the air to flow from the outside to the actual filter.......There would be no need for a heatsheild housing to keep in cool air.
I was wondering if the BMC box would fit in the space the resonator occupies. If it does then I may do this.
This is for vehicles 2 litre and over kit (the one I'd need).
Code : CDA70-150

D1 (mm) D2 (mm) L1 (mm)
70 150 200


CARBON DYNAMIC AIRBOX

Image

Image

Need to know the resonator box size as that would be the only place that I'd house the BMC.
My last BMC on my Prelude was good.
I don't feel the air flow would be warmed enough if it had to travel fom lower down the inner wing to the AFM. Provding the pipework is air tight.
Having a filter lower down will help draw in more cold air as like you say it is more abundant in the lower wing area. The BMC gives the air a swirling effect thus negating the airflow into the AFM quicker once it has travelled through the cannister.

The good news is that if it fits in the inner wing then I can see a good chance this will work well.



Any thoughts and opinions appreciated.

Cheers guys

Steve
Author:  stevenb [ Fri Mar 24, 2006 9:56 pm ]
Post subject: 
Does anyone know the approx dimensions of the resonator on my CS or a at185 if there is a difference?
Cheers guys
Author:  Kris [ Fri Mar 24, 2006 11:22 pm ]
Post subject: 
Steve - I'd be surprised if it didn't fit, the space where the resonator fits is surprisingly large! :shock:

Interesting idea with moving the filter, should be interesting to see how you get on :)
Author:  stevenb [ Sat Mar 25, 2006 9:59 am ]
Post subject: 
This was my main concern Kris. As you can see form the dimensions of the airbox I'd need.
D1 (mm) D2 (mm) L1 (mm)
70 150 200

I'm sure it'd prove effective. There was a concern as to whether the air would have warmed up after leaving the filter before reaching the AFM. However as you no doubt have seen before, there are many air filters for cars whereby the filter is located in the lower wing area.
The BMC is designed to accelerate the airflow from the filter to the AFM....so that should be fine.
The other concern is water penetration but as I plan to mount the filter at a downard 45 degree angle (if that's at all poss) then water shouldn't be a problem.
All I need really is the correct sized airbox to test before I commit to buy....
Author:  Kris [ Sat Mar 25, 2006 10:18 am ]
Post subject: 
Steve - why not knock up a cardboard "template" with the filters dimensions and offer this up to the area you are thinking of, this should give you a good idea if there is enough room or not?
Author:  stevenb [ Sat Mar 25, 2006 11:52 am ]
Post subject: 
Yes...thats a good idea. I am still wrapped for time at the mo...with work 'an all but I'm off on monday so if the weather permits I may have a look.
Author:  GT4WRC [ Sat Mar 25, 2006 10:14 pm ]
Post subject: 
Steve
I would be very wary of fitting the filter in the space originally occupied with the resonator box. I recently helped out a young lad who had the misfortune of driving through a rather large puddle. As a result - and bear in mind that he was running the stock intake set-up on his ST205 - a large amount of water was sucked up and completely wrecked the engine. Water doesn't compress and rods can easily bend.
I was amazed that this could happen with the resonator box still in situ but it did. Probably a freak incident, but something to be aware of perhaps?
Gary
Author:  stevenb [ Sun Mar 26, 2006 7:58 am ]
Post subject: 
That'd have to be one huge puddle....and he must have travelled through it at a certain speed for that to happen.......that is certainly freaky.

Doesn't put me off though....still going for it. I can see puddles ahead and slow down. :D

Cheers for the advise though.
Author:  dt4 [ Sun Mar 26, 2006 10:20 pm ]
Post subject: 
Steve,
take the passenger side wheel off and the wheel arch liner and you will see the size of the resonator box.

Just so you know though they are an absolute PITA to get out.
Author:  datajon [ Mon Mar 27, 2006 9:14 pm ]
Post subject: 
D1 (mm) D2 (mm) L1 (mm)
70 150 200

These sizes would suit a 2 ltr NA, but for a Forced Induction, I would say its a little on the small size, the internal filter that is.

When its clean would not be such a problem, but when its been used a few k, think it would stifle the turbo efficiency a little, same goes with the long snorkel.
Author:  stevenb [ Tue Mar 28, 2006 10:08 am ]
Post subject: 
Would you say something like a K&N filter mounted in the inner wing on the end of somepipework would be better?
Author:  stevenb [ Tue Mar 28, 2006 1:21 pm ]
Post subject: 
datajon wrote:
D1 (mm) D2 (mm) L1 (mm)
70 150 200

These sizes would suit a 2 ltr NA, but for a Forced Induction, I would say its a little on the small size, the internal filter that is.

When its clean would not be such a problem, but when its been used a few k, think it would stifle the turbo efficiency a little, same goes with the long snorkel.


Would you say that fitting a K&N kit and housing it from warm air and removing the resonator box would work better?

Cheers

Steve
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