Which Hi Flow Filter

[didsi]

hi guys, lloking at getting a hi flow filter (want an induction kit more but girlfriend has banned it cossa the noise! lol). Which one do you all think is the best? from the searches ive done most leon owners seem to prefer green cotton. i have a 1.6 16v sx 2003. what does everyone think is the filter that i will get the most out of?! cheers

 

[RobM]

You'll get 1bhp if you're lucky at the top end... but will suffer with heat soak at lower speeds which will bog the engine down. There are plenty of enclosed induction kits that help get around this though if you're prepared to spend out on one.

Induction kits are for noise mostly.... on a N/A car they don't offer anything relevant in performance terms.

 

[didsi]

well i noticed a bit of difference with the induction kit on my punto but like u sed thought it was really for noise! heard that the hi flow filters help at low end with throttle response, is tht nt true?

 

[RobM]

That depends which one. An open-cone filter with no protection from the heat of the engine bay will just suck in hot air at lower speeds, which in turn will cause the engine to bog down. Acceleration and throttle response will suffer because of this.

At higher speeds it will improve when there is a good, cold, dense rush of air coming into the engine bay, but it wont be much different to stock.

If you get a decent heat shield things get better. Heat soak is lessened and pick up is better because of that... but you'll still be sucking in hot air.

Add a good cold air feed to the mix and things get better still. Some nice, wide tubing taken from lower down on the front bumper will ensure you get a good dose of cold, dense air hitting the air filter which improves everything.

And finally, an enclosed induction kit - like the BMC CDA - will stop heat soak further as it's an enclosed design and the filter itself isn't sucking in hot air as much. With the cold air feed I just mentioned you'll gain a little in pick up and throttle response and possibly 1-2 bhp but that's about it.

HTH

 

[Dodson]

If its just the drop in filter ya want just go for a green one, no offence but there aint much point spending big bucks on such a small BHP engine anyway

 

[RobM]

Ban me. I've just typed all that and then realised you don't want an induction kit

Ignore me. Listen to Dodson. Dodson is King.

 

[Dodson]

Ban me. I've just typed all that and then realised you don't want an induction kit

Ignore me. Listen to Dodson. Dodson is King.

I blame the bad knee mate

 

[RobM]

I blame the copious amounts of pain killers

 

[Dodson]

I blame the copious amounts of pain killers

 

[RobM]

Just to add something constructive to this thread since I ruined it... I would suggest a Green panel filter, smoothing your air box and a good cold air feed. Plenty of guides and info on the forum so have a search

 

[didsi]

thanx guys, so an enclosed induction kit, that is what i want but the girlfriend banned it cos apparently id sound like a chav!! so now everytime we in car to make up for it she makes the noise of an induction kit!, its gud but cnt beat the real thing!!!!!!

 

[RobM]

Excellent Novel idea, but you're right, it's not quite the same. Just remember though... while she's making induction kit noises, she's not blabbering on about girly things, what you have done wrong, or talking about ways of spending your money