K&N induction kit makes the world of difference!!!!

[AudiA8Quattro]

I can't speak for an 8v, but on a vr6 it makes a huge difference.
I had an induction kit on the vr, it was great apart from there was a horrible whistling noise between 2000 and 3000 rpm.
I put a standard air box back in with a standard filter, and the engine was so flat, no power until over 4000 rpm.
I drilled the box wing side, and removed the trumpet, put a k&n panel in, and bloody hell what a difference.
The pick up is amazing, just to emphasise the point, with a k&n on it, the traction control cuts in 1st gear, if i really hammer it (i've got sh!t cheap front tyres), this didn't happen at all with a standard airbox.
I'd like to see the so called internet 'experts' that reckon filters just make a noise explain that one.

[carrie]

Lol valves into space i like that! But yeh in Harlow they got alot of alloys but they get everything on order like my K&N they got the catalouge and my Denso sparks and HT leads, they can get more or less anything its just all on order! There sayin next if i wanna make it faster i should bore out the pistons or get mad new cam stuff has anyone done that to there car?

seroiusly DONT bore the pistons your compression will suffer badly it you put holes in them? ?? ?
read a book about engine mods where htey used a dyno to measure the differnce and the consensus was that a filtre only add 1-2 bhp over simply putting a new clean filtre in

[...joe]

i'm not saying they dont work AT ALL, just in my experience of 8 valves they dont! on my car i've gone back to air box, k&n panel filter, removed trumpet/baffle etc drilled wing side and with a cold air feed coming in from the bottom routed to the front bumper.

which internet expert said they just make a noise?

[carrie]

my motorbike does about 90 mph in first gear. but the engine wouldnt last long if you do it all the time as higher revs=more bore wear etc as the engine is moving round more per mile

[AudiA8Quattro]

read a book about engine mods where htey used a dyno to measure the differnce and the consensus was that a filtre only add 1-2 bhp over simply putting a new clean filtre in

Yeah its usually a percentage actually, about 5% ish.
Also filters will make most difference low to mid range revs, rather than top end.

[AudiA8Quattro]

which internet expert said they just make a noise?

On here, and on most popular forums.
People that don't understand basic physics 

[Gambit]

end of the day the induction kit is making the car more responsive due to the increased airflow over the std airbox. same idea as drilling the std box will also increase the airflow

it wont make the car any faster top end, it will just make it get there quicker!

[...joe]

which internet expert said they just make a noise?

On here, and on most popular forums.
People that don't understand basic physics

oh i know what you mean, there is always someone who knows better!!

 but while were talking physics cold air is denser than hot air so the more cold air the better, as for the same volume of both the cold air will contain more oxygen. by thier design induction kits allow engine heat to get sucked in with the cold air so can produce detrimental effects.

[AudiA8Quattro]

That is correct to point. But only if the airbox is behind the engine.
On mk2/3 gti/vr6 the induction kit sits right under the wing.
So basically when the car is in foward motion, it will only suck in cold air.

[AudiA8Quattro]

This is exactly the same principle as the cooling system.
The radiator is at the front so is cooled be the in rush of cold air when the car is in foward motion.
It doesn't get heated up by engine heat