Cone Filter

rad · Post by **rad** » Mon Jun 05, 2006 12:51 pm

Hi guys i jus put a cone filter on my 206 gti, jus wanted to know if it will affect my car in any way, and i been noticing a sort of a flat spot when i change to 3rd could that be from the filter

Dan · Post by **Dan** » Mon Jun 05, 2006 2:01 pm

Air filters have been known to do nothing apart from give you a good noise... I've heard about them decreasing performance too.

rad · Post by **rad** » Mon Jun 05, 2006 3:09 pm

Thanks!!! and it does sound good

Post by **GrandadMonkey** » Mon Jun 05, 2006 10:39 pm

The original air filter will have been designed to permit a certain volume of air in and the engine will be set up for the factory part.

Any non-Peugeot filter - particularly so-called "performance" filters may well allow too much air in which can weaken your mixture and lead to the flat spot you describe. If your mixture is too weak, and the indications are that it could well be with the cone filter, then this could cause other problems including over-heating, fast spark plug wear, and accelerated wear of your exhaust valves.

It is not a good idea to run an engine too weak.

Ron

rad · Post by **rad** » Tue Jun 06, 2006 6:40 am

Thanks for that. i think im going remove the filter but it jus sound so nice

Post by **GrandadMonkey** » Tue Jun 06, 2006 7:32 am

Make sure there are no induction leaks caused by incorrect fitment of the filter first, then, if you want to keep the filter, get the fuel injection system adjusted to richen the mixture to suit it. Wait until you've fitted that performance exhaust though because that will alter its breathing characteristics too. Any good garage with diagnostic equipment should be able to do it, although there will be tuning specialists who will be used to doing it.

Ron

Post by **GrandadMonkey** » Tue Jun 06, 2006 7:36 am

P.S. My general philosophy is: if it ain't broke, don't fix it!

Ron

Dabz · Post by **Dabz** » Tue Jun 06, 2006 8:12 am

I'd recommend a panel filter to sit in the original airbox rather than a cone filter - k&n make one that I have used on 2 cars now and there's a small noticable inprovement in responsiveness

I have an enclosed induction kit in mine, BMC's Carbon Dynamic Airbox. This supposedly can give up to 10bhp extra but gains like that always need to be taken with a pinch of salt. Sound is excellent and it definitely improves the car's accelleration.

As has been said above though, with any change of air intake it's worth having the ecu tweaked if you can.