R26 air box mod

This is how i cut mine

 

make the hole BIGGER than that but not too much to weaken the box

 

i think I went 5 more squares up and about 7 down as you look at it in picture, you will see what is possible as I think there is something on the inside that strengthens it don't go beyond that. Hope it some how helps

 

it is really easy to do just "lube ya nuts" and bolts as you don't want to snap a battery tray bolt, mine is 6 yr old and they came out ok just don't rush

 

sorry 5 to the left and 7 down :rolleyes:

 

i didnt want to go much bigger than that. it exposes the filter to the elements.
also is there anymore gain/benefit from cutting a bigger hole?

 

I just guessed bigger was better and the battery covers it from the elements not had any bother with mine with k+n Pannell

 

nice one fella I never knew what it was

 

What does this mod actually do?

 

Lets more air in I guess, bit more noise but not like a cone

 

How would i go about removing my battery tray if the nuts are rounded and rusted?

 

Drill them out and get new one from your local fasteners.

 

I dont have a drill haha.

Ill need to get a shot of my dads one when the time comes

 

I'm not seeing the point.. Cones get heat soak, the original unit is built to suck air up from the bumper. Sticking a hole in the original ruins the original air flow, poss losing power?

 

Better get an inlet SRI or CAI

 

the original one has a smaller hole reducing (limiting) the amount of air going in, sure its going to be warmer than a standard set up but its a free mod apart from the cost of a map tweak after its done if you want it doing as I did

 

But a bigger hole in a forced induction car? How does the bigger hole get more air in the engine?

 

Well done :-)

 

I guess that's the point. Is this to increase power or noise? If you increase the noise, are you reducing power?

 

Its hardly going to lose 100bhp or gain that much, its not really going to make any difference in power. I guess its just the noise.

 

I guess I'm just old. Butchering the standard air box to make it sound louder which could damage the car (or lose power) seems like a strange idea. At least a back box chop interferes with the outbound air, not the air going into the precious engine. If power is not important, why buy a meg?

 

A sound video´ll help

 

How would it damage the engine? The air is still passing through the filter isnt it?

 

But you 100% haven't risked the integrity of the seal? Or have any plastic burrs that might work themselves in to the engine?

 

Well you've taken a big hole out of the original air box, who knows if that's enough to distort the shape enough to create a gap on the edge of the filter?

 

Paul at RS Tuning told me to get the airbox mod done, deffo gives a bhp gain as well as a bit of induction noise, nice.

 

Can +1 this, and the best way is to increase the hole diameter not cut a square although it is easier...

 

Ok so if someone like Paul is saying it's worthwhile, can someone write up the right way to do it and what it's proven to do, then get it stickied by a mod? At the moment it seems like a lot of plastic hacking for a bit of extra noise.

 

Very easey to do mate, I'm in notts if your struggling , I can help you out , cheers Steve

 

be good to see correct way of doing this..