K&N 57i

[thegreengoblet]

Ok. I've just fitted the K&N 57i Induction kit to my M3 Evo
A Definite improvement I might add

A couple of questions though.
1) The cold air scoop which fixed onto the old air box - what do I do with this? I was going to leave it alone but it's lose and rattling about.

2) There's a little packet of oil in the kit but no reference to it in the initial fitting instructions. Is it already been done from new or do I have to do this now?

Thanks

[PATTERNPART]

Don't know about the scoop but you definitely have to oil the filter. It used to be that the element was a pale to white colour and you knew it was properly oiled when it went a pale pink colour.

There's probably a K&N website which will explain in more detail. I've always found K&N filters very good.

[thegreengoblet]

It's already a nice red colour?

[thegreengoblet]

I've had a response back from the supplier of the kit. It's the small breather filter that isn't supplied already oiled. The sachet is for this one.

Can anybody help with the scoop issue?

[dan101smith]

If you can find a way to secure the cold air intake then so much the better. The problem with these kits is that although they get more air in, it's the warmer air through heatsoak from the block.

That's why Dave F kits and Gruppe M replicas have some sort of heatshield or enclosure.

[thegreengoblet]

Thanks Dan

I reckon drilling some small holes in the scoop and a few cable ties should keep it in place to help direct the cold air to the induction filter. The heat shield is still in place albeit a crued arrangement really as the induction filter is "floating" within this space as apposed to being completely isolated.

BTW, it might seem a daft question, but what's actually involved in biscuit design? (I can guess obvious design steps like taste etc, but I'm intrigued in the intricacies)

[ASBO]

The best source of cold air is actually from the nearside brake cooling duct. Simply cut a hole in the square palstic pipe that runs below the tip of your filter and feed some 2-3" tubing from it as per the much-lauded DaveF kit aforementioned.

[thegreengoblet]

ASBO said:

The best source of cold air is actually from the nearside brake cooling duct. Simply cut a hole in the square palstic pipe that runs below the tip of your filter and feed some 2-3" tubing from it as per the much-lauded DaveF kit aforementioned.

The scoop splits into 2 different routes - 1 goes to the side of the radiator and the other looks to be coming from the brake cooling duct. Will have to check to be sure.