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Author Topic: What kills a maf?  (Read 5744 times)

Offline Ivor Mk4 Turbo

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Re: What kills a maf?
« Reply #10 on: 11 April 2009, 22:33 »
Quote from: Patch on 11 April 2009, 22:30
The oil that kills the maf isn't coming from the air filter,it's being blown back through from the other side. :sad:


So where does the theory/rumour of oily K&N's ruining the MAF's come from then?? :undecided:
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Offline jonnyturbo

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Re: What kills a maf?
« Reply #11 on: 11 April 2009, 22:34 »
hmm thats a gudd in
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Offline Grand Master Patch

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Re: What kills a maf?
« Reply #12 on: 11 April 2009, 22:34 »
Quote from: jonnyturbo on 11 April 2009, 22:31
ah you mean like K n N filters ?

No,the oil vapour is still blown back through the maf even on the std paper filter.
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Offline jonnyturbo

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Re: What kills a maf?
« Reply #13 on: 11 April 2009, 22:34 »
i have just heard before K n N are oil based
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Offline Grand Master Patch

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Re: What kills a maf?
« Reply #14 on: 11 April 2009, 22:36 »
Quote from: Ivor Mk4 Turbo on 11 April 2009, 22:33
Quote from: Patch on 11 April 2009, 22:30
The oil that kills the maf isn't coming from the air filter,it's being blown back through from the other side. :sad:


So where does the theory/rumour of oily K&N's ruining the MAF's come from then?? :undecided:

Urban myth,they wouldn't sell them if they killed mafs.Speak to any tunning supplier and they will tell you the same.

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Offline Ivor Mk4 Turbo

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Re: What kills a maf?
« Reply #15 on: 11 April 2009, 22:37 »
Quote from: Patch on 11 April 2009, 22:33
Quote from: Ivor Mk4 Turbo on 11 April 2009, 22:28
Quote from: Patch on 11 April 2009, 22:24
We came to the conclusion that it has nothing to do with what air filter you have.

All 1.8t's have a breather hose at the top of the engine,through this comes oil vapour.This vapour is recirculated back into the intake pipe.What sits right next to this pipe? The Maf.When the dv dumps air back into the intake pipe it's rich in oil vapour,and is passing this vapour back through the maf.Think carbonio woosh

What are your views on this theory?


I don't think air/vapour can get pushed back as far as the MAF as the engine is constantly sucking the air in at a greater velocity in the opposite direction??!! :undecided:

In reply to that,where is the sound of the dv echoed when running a carbonio? Inside the carbon fibre pipe,this pipe is on the other side of the maf :shocked:




 

Where's Topher when you need him??!! :D
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Offline Ivor Mk4 Turbo

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Re: What kills a maf?
« Reply #16 on: 11 April 2009, 22:38 »
Quote from: Patch on 11 April 2009, 22:36
Quote from: Ivor Mk4 Turbo on 11 April 2009, 22:33
Quote from: Patch on 11 April 2009, 22:30
The oil that kills the maf isn't coming from the air filter,it's being blown back through from the other side. :sad:


So where does the theory/rumour of oily K&N's ruining the MAF's come from then?? :undecided:

Urban myth,they wouldn't sell them if they killed mafs.Speak to any tunning supplier and they will tell you the same.




Jabbasport recommend a paper filter, but then again, they supply their own brand, though.
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Offline topher

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Re: What kills a maf?
« Reply #17 on: 11 April 2009, 22:41 »
Quote from: Ivor Mk4 Turbo on 11 April 2009, 22:37
Where's Topher when you need him??!! :D

Sitting here chuckling to myself. Oil vapour blowing OUT of an intake, please :grin:
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Offline Grand Master Patch

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Re: What kills a maf?
« Reply #18 on: 11 April 2009, 22:41 »
What's worse is that the oil vapour being sent back into your turbo actually reduces the octane of you fuel :sad:
Not only does it kill your maf,it reduces pefromance aswell...
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Offline Grand Master Patch

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Re: What kills a maf?
« Reply #19 on: 11 April 2009, 22:43 »
Quote from: topher on 11 April 2009, 22:41
Quote from: Ivor Mk4 Turbo on 11 April 2009, 22:37
Where's Topher when you need him??!! :D

Sitting here chuckling to myself. Oil vapour blowing OUT of an intake, please :grin:
Care to explain how std cars,still need replacement mafs?
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