Air Filter

[LivinLegend]

Ive been told that a cheap way to increase performance is to drill holes in your airbox, this is a cheaper alternative to a performance air filter. are there any major problems with doing this

 

[unofficialPete]

allows hot air from your engine back into your engine

 

[LivinLegend]

what will that cause??? im not very clued up on engines

 

[unofficialPete]

itll slow your car down. hot air = bad.

If you made cold air feeds upto the hole then maybe but not worth the hassle.

Im sure theres more effects, im not expert..

 

[number2301]

Main, probably only reason for drilling your airbox is to make it sound like an induction kit without buying one!

 

[BRUN]

that is the only reason, it wont do anythin for performance really, jus let hot air in....

hot air = bad................cold air = good

cold air has more oxygen than hot air.........

 

[Lunner]

Yeah hot air is bad, but if you do you have to drill LOTS of holes, ive drilled about 7 12mm holes around the edge of mine away from the block and it has made bugger all difference, no extra sound.

If you get a filter you MUST have atleast 2 50mm cold air feeds to it.

If you have a Mk1 clio then a trick is to stick a valver bonnet on it (you have to cut off the rain guard), the vent is in the perfect position to blow straight onto the Induction Kit.