K & N Upgrade

[SAM LOVERS HER TOYOTAS]

Hi guys

My next move is to install a K&N...But i dont know whether i should go for the actual induction kit OR just a panel filter?

How does the maf sensor work out with the induction kit?

Does it really increase power? Or use more fuel?

Anyone know what part number i'd need for the induction kit for a 1.6 2006 hatch Rolla? And how much i'd be looking at?

Thanks in advance guys!!!

Sammy

[KPARRIS-JONES]

Thread No. 1205 on the K&N Typhoon... :P

You have to extend the MAF wires. Other than that it fits just fine.

KP

[Norfolk n Chance]

It's not the best filter tho.....

;)

[KPARRIS-JONES]

Yeh you're right..... there's always the Blitz filter. :P

[Cyker]

'sports' filters just let the engine breathe more easily so it doesn't waste as much energy sucking the air in and also (In the case of cold air induction kits) it lets it suck in a bit more/denser air.

More air = more fuel burned per cycle = more power.

Downside is that filtration isn't as good, but TBH I don't think that has any major effect (Certainly less than an EGR!), and if it's an oiled filter like the K&N there has been some reports of the oil fouling the MAF sensor.

But wow, you've really been bitten by the modding bug haven't you!!

[sizzla538]

i got myslef a £10 filter off eBay and cut the air box to fit it. alot of members here have done this.

http://www.toyotaownersclub.com/forums/index.php?showtopic=104758&st=0&p=950782&hl=+home%20+made%20+induction&fromsearch=1entry950782

that is exactly what i did

thats mine. the sound is awesome, echos around the air box. i love this way, the filter is protected from underneath from splashes or grit. and fed cold air from the foglight surround.

love how if you drive it normally its quiet as a mouse but put your foot down and baaaarp!

[pimp1chez]

i got myslef a £10 filter off ebay and cut the air box to fit it. alot of members here have done this.

http://www.toyotaownersclub.com/forums/index.php?showtopic=104758&st=0&p=950782&hl=+home%20+made%20+induction&fromsearch=1entry950782

that is exactly what i did

thats mine

10quid filter ? thats not going to provide enough filteration, theres a reason why HKS and K&N filters are expensive

[KPARRIS-JONES]

And you know this from extensive testing and experience? :P

Read the book Four Stroke Performance Tuning. All will be explained... it's awesome.

KP

[Adam786]

Obviously an induction kit (cone filter type) makes an amazing sound! But unless you have some sort of an upgraded cold air feed it is not going to make any difference on your car in my opinion Because it is just drawing in more hot air (which is denser) because it is more exposed than a standard filter in an airbox. This will actually reduce your performance! and maybe even your fuel consumption.

My advice is go for the K&n 57i Gen 2 instead of the GEN 1 because there is a heat shield on this version which may help, OR if you do have the money just get the typhoon kit!

I have a standard K&n replacement panel filter in mine, No problems with MAF sensor, and I am getting a gain of about 1 - 2 mpg when compared previously, however cannot see any performance gain. The only thing I do notice is slightly more torque lower down but it is very slight or might just be me :S!

You might want to read these article, although not very relevant to your exact car it did help me decide!

http://www.cliosport.net/forum/showthread.php?445339-Fastcar-Clio-172-Air-Filter-Test

http://www.torquecars.com/tuning/induction-kits.php

[Adam-Up]

But unless you have some sort of an upgraded cold air feed it is not going to make any difference on your car in my opinion Because it is just drawing in more hot air (which is denser) because it is more exposed than a standard filter in an airbox. This will actually reduce your performance! and maybe even your fuel consumption.

Its cold air thats denser, a car performs better sucking in colder denser air as cold dense air is thicker and has a higher oxygen content than hot air. B)

[Jamesbelfast]

Yes cold air has a higher oxygen content.

But guess what is fitted to the exhaust system of practically every modern car. Yes you've guessed it - it an oxygen sensor. This sensor monitors the oxygen content of the exhaust gases and causes the ECU to adjust the fuel mix so when it detects oxygen leels outside its normal parameters it adjusts the fuel being injected accordingly. So in effect heaving more oxygen is just counter-acted by the ECU. To overcome this the ECU settings would have to be remapped to compensate.

Yes if you like the sound go for it but on some cars it just makes them sound like a goose with a sore throat. Some intake systems claim they will reduce turbulence in the incoming air but turbulence can ahve its positive benefits as in many cases it improves fuel-air mix which in turn helps fuel economy.

These factors do not take into account the humidity content which can vary greatly. The greater the humidity the less oxygen.:)

[Adam-Up]

All very true adding a k and n type filter adds no real gains other than a nice sound coming from the exhaust, in effect all you get is higher fuel consumption, as everyone knows the more air that enters the engine the more fuel that will be added.

[Corrolla18]

Fitting an induction kit to an otherwise standard car is all down to personal preference, do you want the induction roar or do you not? A motor with no supporting mods will not normally require the additional air flow allowed by an induction kit and as mentioned before likely as not you will see no performance gains or may even lose power. A motor that breaths more freely will definatley have an improvement in BHP but to breath effectivley you may need longer duration cams a full exhaust system(manifold straight through)and a session on the rollers to ensure proper fuelling.

I've always liked intakes from the point of view that they look good under the bonnet and they sound good. The downsides are that fuelling can be increased, the maf can be damaged as previously mentioned and in the case of cold air intakes hydro lock can occur.

From a filtration point of view the difference is negligable unless your planning on doing the Dakar.

[Norfolk n Chance]

I like the noise, the look under the bonnet and the increased bhp mine gave...

No damage to my MAF Sensor as i opted for the best filter, not a K&N :P

Not noticed a detrimental effect on fuel consumption either.

At the end of the day it's all down to personal preference as it is with any mod

[KPARRIS-JONES]

Yes cold air has a higher oxygen content.

But guess what is fitted to the exhaust system of practically every modern car. Yes you've guessed it - it an oxygen sensor. This sensor monitors the oxygen content of the exhaust gases and causes the ECU to adjust the fuel mix so when it detects oxygen leels outside its normal parameters it adjusts the fuel being injected accordingly. So in effect heaving more oxygen is just counter-acted by the ECU. To overcome this the ECU settings would have to be remapped to compensate.

Yes if you like the sound go for it but on some cars it just makes them sound like a goose with a sore throat. Some intake systems claim they will reduce turbulence in the incoming air but turbulence can ahve its positive benefits as in many cases it improves fuel-air mix which in turn helps fuel economy.

These factors do not take into account the humidity content which can vary greatly. The greater the humidity the less oxygen.:)

That's all because they are built for efficiency and not stabbing polar bears in the face, or setting fire to small fox cubs. Volumetric efficiency is what you want to worry about when you are looking for performance gains in the way of power. EGR's are a real killer so whip that out first of all

Turbulence in itself isn't good, you want a swirl to mix the fuel rather than just throw it around. Turbulence in the Intake Port (post injector) is pretty awful because it will end up whacking it against the port wall, making the fuel gather on the wall rather than enter the cylinder. There are loads of small tweaks that need to be made to get the most out of an engine, but in all seriousness - the common thing for the lot of us is filter, exhaust and maybe cams. We're not getting so hardcore that we need to worry about this. In general, you want good fuel atomisation and mixture, without making it too difficult for it to get to the Chamber.

There is an awful lot of debate around filters, but truth be told, for the type of driving that the latter are doing here doesn't require a perfectly formed intake tract or charge density. It's not going to make enough of a difference. I went for a filter that I knew sounded awesome, and with that I am very happy.

There is an awful lot to be said for bodging your standard air-box, in many cases it has given better results that the cone filters we all like to use.

KP

[nrgizerbunny]

when your MAF sensor goes !Removed! up, you'll regret installing it.

[KPARRIS-JONES]

Has anyone provided solid evidence of the Typhoon damaging the MAF?

I can't see it being so bad, maybe a news paper trimming of a Typhoon mercilessly beating a MAF sensor with it's oils will sway me, but so far I haven't seen any hard evidence.

KP

[Norfolk n Chance]

You only have to search on here KP for problems caused by the oiled K&N filter....

No such reports for the A'PEXi tho :P

[nrgizerbunny]

The problem is the hot wire in the Toyota MAF sensor, if you get oil on it, it turns to coke, which screws the air flow readings up.

It will happen with any oiled filter, not just a K and N. It happened to mine with a Panel Oiled filter.

[reidy]

I reckon more would drill their air box if they didn't cost like £300 for a new one

[Daveyonthemove]

The paper panel filters work just fine, and unless you are pushing serious BHP, then there is no real need for an induction kit, but if you do get one fitted, do a decent job and keep it away from the heat of the engine, and away from areas where water/rain can get to it.

Its unlikely there will be any noticeable gains on an otherwise standard engine, but the noise will be different. You can mimick that induction noise by drilling small holes into the bottom of the airbox, but then you have the heat soak issue again...

My advice is to use a paper filter if the engine is standard, as Toyota have tried and tested them.

[Adam786]

But unless you have some sort of an upgraded cold air feed it is not going to make any difference on your car in my opinion Because it is just drawing in more hot air (which is denser) because it is more exposed than a standard filter in an airbox. This will actually reduce your performance! and maybe even your fuel consumption.

Its cold air thats denser, a car performs better sucking in colder denser air as cold dense air is thicker and has a higher oxygen content than hot air. B)

MISTAKE I miswrote that my bad! you are correct

[Bong Water]

Simple answer, if you've got the money to throw away and want the noise then go for it. If you havent really got the money and think its going to do anything for performance that you'll notice on the road then dont bother

[Adam-Up]

But unless you have some sort of an upgraded cold air feed it is not going to make any difference on your car in my opinion Because it is just drawing in more hot air (which is denser) because it is more exposed than a standard filter in an airbox. This will actually reduce your performance! and maybe even your fuel consumption.

Its cold air thats denser, a car performs better sucking in colder denser air as cold dense air is thicker and has a higher oxygen content than hot air. B)

MISTAKE I miswrote that my bad! you are correct

No worries mate, it's all good