All,
After reading the forums for some time and with the recent increase in fuel prices, I have just installed a K & N panel filter into my 2004 TL series Magna. What sort of improvement in fuel economy will I get? 10%? :confused:

i have no idea, let us know in a couple weeks as im thinking of buying one

If you're lucky... You won't really notice a difference. You'll only notice your car can breathe a little bit better at top end RPM (4,500 - 5,500 RPM).

i got better fuel econmy + a bit more get up and go. Pm Barry and get the fuel ral kit + gaskets they make a lot of difference as well

i got better fuel econmy + a bit more get up and go. Pm Barry and get the fuel ral kit + gaskets they make a lot of difference as well

what are these? and how hard are they to install yourself?

what are these? and how hard are they to install yourself?

Hi Aaron

The fuel rail kit is made up of 4 conductive alloy mounts for the fuel rail and are designed to work best when you have a high-flow air filter

These and the thermal gaskets are simply fitted once you have removed the plenum - just the same as when you next replace your rear spark plugs

You just need a socket set, ring spanners and basic tools, and the kits come with instructions

I'll PM you some more info

Cheers, Barry

What sort of improvement in fuel economy will I get? 10%? :confused:

lol Poor guy

Guarantee you will not notice a difference in fuel consumption. If its different, its due to other reasons. Id say 1.0% MAX

Ollie

All,
After reading the forums for some time and with the recent increase in fuel prices, I have just installed a K & N panel filter into my 2004 TL series Magna. What sort of improvement in fuel economy will I get? 10%? :confused:


You will see no improvement in fuel economy.... (barely noticable IF any)

what you will get is increased throttle response and a free'r flowing engine that will be happier to consume MORE fuel when the foot goes down. :D

I have just completed my first highway venture (Hunter Valley -N England Hwy.) Averaged 7.8 litres/100 Km for 500 Km with the K. & N. filter fitted. I strictly observed the speed limits, and had the TL-LS on cruise control wherever I could. I think perhaps it makes a slight improvement on the standard filter, provided the car is carefully driven.:cool:

provided the car is carefully driven.:cool:

Provided the car is driven carefully the car will always get better fuel economy

I have just completed my first highway venture (Hunter Valley -N England Hwy.) Averaged 7.8 litres/100 Km for 500 Km with the K. & N. filter fitted. I strictly observed the speed limits, and had the TL-LS on cruise control wherever I could. I think perhaps it makes a slight improvement on the standard filter, provided the car is carefully driven.:cool:

i told you it would make a difference lol, all you need now is barrys kits:D

I have not noticed any difference at all. I have a 2003 TL magna. Not even a difference in sound etc.

as i posted in a different thread, you should recieve ZERO fuel economy difference due to changing the air filter. the reason being that while a k&n filter lets more air into the motor when you open the throttle, the AFM reads this and puts more fuel in to compensate. so everytime you floor it you will use more fuel with a k&n than with the standard paper filter. but then you will be accelerating for a slightly shorter period of time that with a paper filter so it comes back to even.

as for just cruising at a set speed, your fuel usage will be exactly the same because it takes a set amount of air and fuel to make a car go at a certain speed. so by having a better flowing air filter all you do is lower the throttle percentage used to get that amount of airflow, but it is still the same amount of air, which means there is the same amount of fuel.

this is also pretty much the same reason why those hiclone things don't work. they say that you get more air so you get cleaner combustion, etc, etc, etc. but any extra air that goes in will be read by the AFM and compensated for.

i've noticed a heap of difference with my k & N fitted + Barrys kits, my fuel consumption sits around 10.8 with those mods before it was round 13.8-14.2. and thats around town out of a 2000 TJ manual magna Sports

Would i notice more of a difference with my carby non EFI magna with a k&n filter?
I would assume so after what you said since the air flow would not really effect the amount of fuel being used would it not?
Correct me if i'm wrong just curious as to whether it'd be worthwhile me getting one or just sticking with the one i have and generic brands?
cheers

~twiggy~

As I have already said, guarantee if you are mentally sane I guarantee you will not notice a difference mate.

Ollie

Would i notice more of a difference with my carby non EFI magna with a k&n filter?
I would assume so after what you said since the air flow would not really effect the amount of fuel being used would it not?
Correct me if i'm wrong just curious as to whether it'd be worthwhile me getting one or just sticking with the one i have and generic brands?
cheers

~twiggy~
Well if it was Carby, Obviously it would be non-EFI Sorry just pointing that out :P:P:P

true lol
any chance anyone could answer ma question?

Would i notice more of a difference with my carby non EFI magna with a k&n filter?
I would assume so after what you said since the air flow would not really effect the amount of fuel being used would it not?
Correct me if i'm wrong just curious as to whether it'd be worthwhile me getting one or just sticking with the one i have and generic brands?
cheers

~twiggy~
i don't think you would.

perry, as i explained, it is a physical impossibility that you get better fuel economy from the k&n filter. the fuel rail kit is a different story though as that can improve combustion, therefore you get a better bang, which means more power from the same amount of fuel, which means you use less fuel to get the same power, so leff fuel to travel at a given speed.

a little while ago did a trip to brissy (400km round trip) in the missus car and i had changed from my k&n back to my paper filter. fuel economy was the same as it had been on previous trips. and round town the fuel economy has been better than with the k&n because when i do get into it a bit there is less air, which means less fuel. i did another trip to brissy with a lighter oil in the engine and dropped the fuel economy from 8.3L/100km to 7.5L/100km.

so to anyone looking at buying a k&n filter to get better economy, i wouldn't bother. money would be better spent one 1 of these which will get you better economy and more power. http://www1.jaycar.com.au/productView.asp?ID=KC5385 it adjusts your AFM signal (known on this forum as the timing mod, but that is just a side effect).

i don't think you would.

perry, as i explained, it is a physical impossibility that you get better fuel economy from the k&n filter. the fuel rail kit is a different story though as that can improve combustion, therefore you get a better bang, which means more power from the same amount of fuel, which means you use less fuel to get the same power, so leff fuel to travel at a given speed.

a little while ago did a trip to brissy (400km round trip) in the missus car and i had changed from my k&n back to my paper filter. fuel economy was the same as it had been on previous trips. and round town the fuel economy has been better than with the k&n because when i do get into it a bit there is less air, which means less fuel. i did another trip to brissy with a lighter oil in the engine and dropped the fuel economy from 8.3L/100km to 7.5L/100km.

so to anyone looking at buying a k&n filter to get better economy, i wouldn't bother. money would be better spent one 1 of these which will get you better economy and more power. http://www1.jaycar.com.au/productView.asp?ID=KC5385 it adjusts your AFM signal (known on this forum as the timing mod, but that is just a side effect).

Hi
I'd just like to say thanks for the comments about the 'fuel rail temp tuning kit' - yes it does work well
Just to add one point is, now there is improved combustion, the air charge can then be increased
Fitting a hi-flow air filter will then add more air, including oxygen to the intake, further increasing torque, especially from off idle to 2500rpm

Re: the Jaycar kit - in the fine print in the cattledog it states this kit is compatiable with 'voltage output type airflow meter' cars, but not the Magna which has the Vortex type MAF

Cheers, Barry

i don't think you would.

perry, as i explained, it is a physical impossibility that you get better fuel economy from the k&n filter. the fuel rail kit is a different story though as that can improve combustion, therefore you get a better bang, which means more power from the same amount of fuel, which means you use less fuel to get the same power, so leff fuel to travel at a given speed.

a little while ago did a trip to brissy (400km round trip) in the missus car and i had changed from my k&n back to my paper filter. fuel economy was the same as it had been on previous trips. and round town the fuel economy has been better than with the k&n because when i do get into it a bit there is less air, which means less fuel. i did another trip to brissy with a lighter oil in the engine and dropped the fuel economy from 8.3L/100km to 7.5L/100km.

so to anyone looking at buying a k&n filter to get better economy, i wouldn't bother. money would be better spent one 1 of these which will get you better economy and more power. http://www1.jaycar.com.au/productView.asp?ID=KC5385 it adjusts your AFM signal (known on this forum as the timing mod, but that is just a side effect).

Yes in theory, more or should lead to more fuel and greater power. My car on the other hand was running at 7-10% better fuel economy. Willingness to rev up high was increased, with a possible increase in peak power, but it also created a bit of a whole in the mid rev range....then again I was running a pod. I suspect it was running a little on the lean side, which is one way to increase your fuel economy ;)

I recall someone running back to back dyno runs with the standard paper then K&N panel, and found ZERO difference in power output and delivery.

The problem with the Jaycar item listed is that it's for voltage output air sensors....our MAF however is karman vortex frequency based sensor, making that Jaycar item next to useless.

In shorta filter, it may or may not increase your fuel economy and may or may not increase power.

i don't think you would.

perry, as i explained, it is a physical impossibility that you get better fuel economy from the k&n filter. the fuel rail kit is a different story though as that can improve combustion, therefore you get a better bang, which means more power from the same amount of fuel, which means you use less fuel to get the same power, so leff fuel to travel at a given speed.

a little while ago did a trip to brissy (400km round trip) in the missus car and i had changed from my k&n back to my paper filter. fuel economy was the same as it had been on previous trips. and round town the fuel economy has been better than with the k&n because when i do get into it a bit there is less air, which means less fuel. i did another trip to brissy with a lighter oil in the engine and dropped the fuel economy from 8.3L/100km to 7.5L/100km.

so to anyone looking at buying a k&n filter to get better economy, i wouldn't bother. money would be better spent one 1 of these which will get you better economy and more power. http://www1.jaycar.com.au/productView.asp?ID=KC5385 it adjusts your AFM signal (known on this forum as the timing mod, but that is just a side effect).

thats what i have experienced with my k & N

Re: the Jaycar kit - in the fine print in the cattledog it states this kit is compatiable with 'voltage output type airflow meter' cars, but not the Magna which has the Vortex type MAF

Cheers, Barry
Correct, Magna MAF sensors output as a frequency... Although that can be modified too ;)