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(Post Link) post #1 of 44 Old 05-12-08 Thread Starter
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Alfa GT K&N Panel Filter

I've had a quick search already, but have any GT diesel owners got / had experience of the K&N panel filter?

33-2228 - K&N Replacement Filters, Replacement Air Filter

I'm thinking of getting one if it makes a difference.
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Re: Alfa GT K&N Panel Filter

No but I'm getting a BMC one. £45 nomally from Angel Tuning. Only gives about an extra 3% but improves the sound slightly. Any extra will do me

How much is the K&N?
 
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Re: Alfa GT K&N Panel Filter

Let us know how you get on if you go for the K&N
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Re: Alfa GT K&N Panel Filter

It looks to be around £30, which I think is cheap for a K&N.

I've always driven petrols before I got the GT, so don't really know how much difference it will make to the diesel.

If I can improve the induction with a good filter and induction kit then I will. If there are no gains, I won't bother.
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Re: Alfa GT K&N Panel Filter

No gains and you risk MAF damage with the oil.

Not worth it
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Re: Alfa GT K&N Panel Filter

Ok, fair point, but what about a better air inlet to the existing filter - will it help?
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Re: Alfa GT K&N Panel Filter

if you oil the K&N very sparsely no problems ! I have one for 6 years now (60.000km) Makes no difference in performance but I saved 6x a paper filter (12 euro a piece)
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Re: Alfa GT K&N Panel Filter

Quote:
Originally Posted by cj romeo View Post
No gains and you risk MAF damage with the oil.
MAF damage? as explained, if you're not a complete chav and don't overoil the panel to the point where it is dripping, you'll be perfectly ok.

i recently fitted one to my 155. they come pre-oiled, which gives an indication of 'how' it should be done. it's not even oily to touch.

but as mentioned, don't expect any by-the-seat-of-your-pants improvement. however, the air filter CAN be a weak link IF the car has a full host of upgrades including exhaust and chip/remap.

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Re: Alfa GT K&N Panel Filter

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Originally Posted by cj romeo View Post
No gains and you risk MAF damage with the oil.

Not worth it
Emmm no. We had done over 70k miles with on an Alfa. And my car has it and is fine also. And you will feel a very slight difference in throtle response as it is about half the thickness of standard.
 
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Re: Alfa GT K&N Panel Filter

So in general it's an improvement or not? I've got a remapped JTDm and speaking to a diesel engine designer friend of mine he said improving the air filter was a wise thing, but in general it didn't really improve performance much (if at all perceptible).

He did suggest it and a new exhaust system if I wanted relatively cheap further improvement... Otherwise he told me it would be very expensive to get any further gains on the engine.
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Re: Alfa GT K&N Panel Filter

I'll have the diesel soon (humble pie )

Isn't there a GSR kit available that improves induction?? Less turbo lag and a little more power.

I've heard of diesels producing less smoke after a new 'high flow' filter being fitted, not a bad thing!!

I think it's the turbo that holds it back from some serious gains.
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Re: Alfa GT K&N Panel Filter

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I'll have the diesel soon (humble pie )

Isn't there a GSR kit available that improves induction?? Less turbo lag and a little more power.

I've heard of diesels producing less smoke after a new 'high flow' filter being fitted, not a bad thing!!

I think it's the turbo that holds it back from some serious gains.
Eh?

What you getting? Are Alfa taking your JTS back?

It's a nice piece of humble pie by the way. Much happier with the performance of my JTD over the JTS.

Getting the Q2 done on mine in the next couple of days
 
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Re: Alfa GT K&N Panel Filter

Alfa are taking my current GT back and giving me the 170bhp Q2.

I say 'giving' it's costing me an extra £500 which is quite good really. They wanted a grand but I got a little aggressive and got them down to £500, reckon I could of pushed for **** all tbh.
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Re: Alfa GT K&N Panel Filter

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Originally Posted by Moby78 View Post
So in general it's an improvement or not?
depends how you wish to measure it.

a filter change alone will do minimal, and probably not noticable. but in conjuction with the remap and exhaust, it makes sense to do. the amount of air entering the engine often restricts power output, especially on turbo cars.

it's quite cheap, and you won't lose power. so i say do it.

but to really know, i suggest you arrange to dyno the car before, then after, and compare the results.

at the end of the day, i expect there will be an improvement. BUT it may be only measurable on a dyno, and not by your bum or by the clock.


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Re: Alfa GT K&N Panel Filter

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Alfa are taking my current GT back and giving me the 170bhp Q2.

I say 'giving' it's costing me an extra £500 which is quite good really. They wanted a grand but I got a little aggressive and got them down to £500, reckon I could of pushed for **** all tbh.
Nice one. Something tells me the 'extra 20bhp' button will always be on. Have you test drove one? What colour combo you getting?
 
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Re: Alfa GT K&N Panel Filter

Its a filter....

The K&N doesnt filter as well as standard (check the relative specifcations) and depending on the conditions it can indeed cause MAF failures, despite K&N's protestations, all oiled filters are the same.

The turbo diesels operate in a sufeit of air anyway, thats why the remaps work.

Also you cant dyno test an air filter as the intake characeristics are affected by the dynamic pressures around the moving vehicle.

Alfa Romeo induction systems are all tuned and well designed, with large surface area filters (larger than most of the aftermarket 'performance' items) The biggest restriction in the GT Jtd inlet is the pipe up from the airbox which is a bit pants to be honest.

Dont waste your time or risk your MAF/Turbo. Use an OE spec dry filter and swap it regularly.
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Re: Alfa GT K&N Panel Filter

Quote:
Originally Posted by Graham P View Post
Nice one. Something tells me the 'extra 20bhp' button will always be on. Have you test drove one? What colour combo you getting?
It's the same as my current GT (blue cloverleaf) only with the diesel engine.

Test drove one around a month or so ago, not overly impressed if I'm honest. The diesel will take some getting used to, first gear is a joke and I'll no doubt keep forgetting about that 6th gear!! Having said that, I couldn't notice much difference between 5th and 6th. The Q2 should help ease the pain of the tractor sound.

The V6 would be nice, but thanks to the emmisions they no longer make that engine in the GT (at least in the uk). At least road tax will be cheaper and mpg will be better not that I do enough miles to care.


Quote:
Originally Posted by cj romeo View Post
The biggest restriction in the GT Jtd inlet is the pipe up from the airbox which is a bit pants to be honest.
That could be what the GSR pipe replaces??
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Re: Alfa GT K&N Panel Filter

There isnt any room to fit much else in to be honest G5een.

1st gear is torque restricted electronically BTW.
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Re: Alfa GT K&N Panel Filter

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1st gear is torque restricted electronically BTW.
You sound like the salesmen.

He did say it's restricted due to emissions.
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Re: Alfa GT K&N Panel Filter

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Originally Posted by G5een View Post
You sound like the salesmen.

He did say it's restricted due to emissions.


My first gear is better since the remap... I know where you'll be once you get yours...
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Re: Alfa GT K&N Panel Filter

Its restricted to stop horrendous wheelspin destroying the transmission!
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Re: Alfa GT K&N Panel Filter

The LSD should help with traction though??
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Re: Alfa GT K&N Panel Filter

I want to buy a BMC air filter for my GT 1.8...

Does any one knows.... is the fitting easy? when you take it out for cleaning it and the put it back??

Everything inside the engine seems so narrow spaced....

Does it worth the difficulty....
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Re: Alfa GT K&N Panel Filter

I finally bought and fitted my new BMC air filter....as I used to have to my Stilo ...


Its quite easy to fit... nice free air flow....


The strange and here is my question ... is it reasonable the original filter to have this sponge on top?

In original paper filters that i had previously in other cars that do not existed!

For example in the Stilo was exactly the same without that black sponge ....

And I wonder now ... could my car "breath" with it??

Αny opions??

http://briefcases.pathfinder.gr/download/607684

thank God i change it...

Last edited by GianniTifosi; 23-12-08 at 15:19.
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Re: Alfa GT K&N Panel Filter

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Originally Posted by cj romeo View Post
No gains and you risk MAF damage with the oil.

Not worth it
When is this nonsense statement ever going to end?

It never ever has been proven to be the case.
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