Air Inlet Pipework

[Guest mcramsay]

I have very little space left for an air filter. And very little room for pipework! Basically the air Inlet diameter on the m3 is 3.5". So I need to get a 180 degree bend in a very tight space. Mandrel bends and silicone elbows won't do the trick.... Any other alternatives ???

 

I'm even starting considering going to screw fix and using the flexible aluminium ducting for a cooker hood!!

[Guest mcramsay]

The flex ducting looks exactly the same as the ducting on screwfix

http://www.screwfix.com/p/manrose-cooker-hood-kit-100mm/13076

 

I can make up the 10mm difference no problem.... It's just if its up to the job?

[Guest Gargoil]

Sometimes it can be a good idea to do what you think will perform better and just make a feature of it. Will a bonnet bulge or scoop make things easier with fitting and sticking with the 3.5 inch of the original?

[Guest mcramsay]

I really don't want to go down the route of bonnet scoops, it would not suit the look of the car at all, the problem really is caused by the maf. I can't get both the maf and filter where I have the room, and I can't bend anything to fit else where.

 

 

My next option is to run the air filter into the passenger side footwell.... I do not want to do that either! I will post up a few pics

[Guest 2b cruising]

If you take some picks and clearance measurements, the famous enough Steamer and red seven engineering would probably come up with a good lookin plenum and filter box to fit.

Can't guarantee he will but would be rare if he can't.

[Guest mcramsay]

The standard m3 box is a work of art!! I think o have found some flexible hose that should do the trick!

[Longboarder]

Made my own ally plenum at one stage and managed to get a 100mm feed past my radiator but it was a job. I had thought at one stage that using two smaller feed pipes and filters to the plenum may have worked just as well and been easier but didn't go that route in the end. Now I just have a hole in the bonnet with the pipercross sausage sticking out. Function over form in the end.

 

Nigel

[Guest 2b cruising]

Marlins don't seem to look good with bulges, bumps or scoops really.

Not to bad low down on the sides though.

My opinion only though.

[Guest mcramsay]

Yea I agree it's not a car for scoops or bulges. Hopefully my super flexible hose should do the trick. Will find out Monday night.

[andyparry]

Black guttering down pipe. Will nicely fit a cone filter on the end as well.

[Guest mcramsay]

Yea, won't be able to bend that at 180 degrees with a 100mm minimum centreline.

[Guest Turboz]

Are you running an aftermarket ecu if so you don't need the maf sensor it only helps get that last 5% fuel economy that's all, tps and air temp alone are fine.

Edited June 19, 2016 by Turboz

[Guest mcramsay]

I'm running the stock ecu so the maf has to stay unfortunately