K&N dilema
12 February 2009, 07:31 PM
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K&N dilema
I'm thinking of putting a K&N induction kit on my ''99 Type R to compliment the Blitz Nur & dump valve. Couple of questions if anyone can help..
Will it give much more noise i.e induction noise & dump valve?
Any more power?
Is it really worth it on a '99 due to problems with something or other called MAF sensor I keep hearing about
?
Cheers folks
Ryan
Will it give much more noise i.e induction noise & dump valve?
Any more power?
Is it really worth it on a '99 due to problems with something or other called MAF sensor I keep hearing about
?Cheers folks
Ryan
12 February 2009, 07:32 PM
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Got one on my newage, and had no problems with the MAF.
Sounds really nice sucking up, and when you lift off the throttle and the air goes the wrong way back through it, lol.
Sounds really nice sucking up, and when you lift off the throttle and the air goes the wrong way back through it, lol.
12 February 2009, 08:52 PM
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I might be wrong, and people on here may put me right. I think there used to be concern that the likes of a K&N which uses an oil to 'catch the dirt' on a cotton filter, can screw up the MAF. The oil gets 'sucked through' onto the element in the sensor (like very thin 'hair size' pieces of wire) and hence knackers it. This may have been resolved now, not sure been a long time since I owned my scoob, but I'm on the lookout for another! Many people use them without problems though, but remap is recommended as the car could run lean.
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12 February 2009, 11:33 PM
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The reason I'm thinking of doing it is because JGM is doing a mapping session near here next month and I'm going to sign up for it.May as well throw a K&N on closer the time.
13 February 2009, 06:51 AM
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The '99 has a known weakness in its MAF meter. That the filter works in a New Age car has no bearing. The Mass Aiflow Meter is the box at the end of the inlet tract, next to the airbox. When it fails, and it will; you car will run lean and the engine will be destroyed.
If you take any advice to the contrary then you are foolish. I suggest that you post a similar question in the technical section where youll get more knowledgable replies.
On a more lighthearted note: to compliment your 'dumpvalve' Id suggest a baseball cap...
Simon
If you take any advice to the contrary then you are foolish. I suggest that you post a similar question in the technical section where youll get more knowledgable replies.
On a more lighthearted note: to compliment your 'dumpvalve' Id suggest a baseball cap...
Simon
13 February 2009, 07:23 AM
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The '99 has a known weakness in its MAF meter. That the filter works in a New Age car has no bearing. The Mass Aiflow Meter is the box at the end of the inlet tract, next to the airbox. When it fails, and it will; you car will run lean and the engine will be destroyed.
If you take any advice to the contrary then you are foolish. I suggest that you post a similar question in the technical section where youll get more knowledgable replies.
On a more lighthearted note: to compliment your 'dumpvalve' Id suggest a baseball cap...
Simon
If you take any advice to the contrary then you are foolish. I suggest that you post a similar question in the technical section where youll get more knowledgable replies.
On a more lighthearted note: to compliment your 'dumpvalve' Id suggest a baseball cap...
Simon
).I had a my99 UK Turbo, and always maintained a nice clean panel filter. For one the filter box is housed off and thus wont suck in warm engine air like a 'open' induction kit would, and also the point Simon made re. the oil getting sucked in.
For some reason the MAF sensors on the my99-00 cars were awful, so I personally would only recommend an induction kit if fitting a front mount (which requires moving the air filter if you didn't know).
As above, most other model year of Impreza never suffered, so again ask in general technical for more specific answers and experiences on the my99 MAF.
Dump valve is your choice, I had a Forge VTA on my Scoobaru, as the Baileys ones are cheap and have a w@nk spring on them.
13 February 2009, 07:26 AM
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I've got about ten baseball caps in me collection at the minute...sometimes like to wear them sideways especially when i turn me neons on!!
Quick question-when the MAF fails how will I know?
Quick question-when the MAF fails how will I know?
13 February 2009, 07:28 AM
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Thing was though, mine was a combination of both MAF sensor and Lambda sensor failing at the same time
MAF's are about £85-90 from Subaru. Ask in general technical as suggested mate, you'll get more knowledgeable heads in there.
13 February 2009, 07:34 AM
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Originally Posted by MK2VTR8VALVE;
Quick question-when the MAF fails how will I know?
13 February 2009, 07:42 AM
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But Yesssh, back on topic, to the O.P., induction kit - don't do it. you don't need one if you have a respectable panel filter. If you want a good breathing noise from the engine, get a ruddy big 3" decat.
Worked for me!
13 February 2009, 07:55 AM
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I had an MY99. By far the weakest link on the car is the MAF.
I had 2 go. The first actually took out #3 piston (the day before I picked the car up from the dealers
)
The 2nd was AFTER a service. The car drove like a bag of **** (technical term to suit this forum
) VERY hesitant. It was actually in Limp mode. Got it sorted pretty darn quick for £80 FOR THE MAF. Subaru try sell you the whole thing (for £270!)
The 2nd Maf was when the air filter was being changed - a clumsy mechanic contaminated the MAF.
I used ITG panel filters - better than OEM. Safer too, than the induction kit.
Then get it mapped
Dan
I had 2 go. The first actually took out #3 piston (the day before I picked the car up from the dealers
)The 2nd was AFTER a service. The car drove like a bag of **** (technical term to suit this forum
) VERY hesitant. It was actually in Limp mode. Got it sorted pretty darn quick for £80 FOR THE MAF. Subaru try sell you the whole thing (for £270!)The 2nd Maf was when the air filter was being changed - a clumsy mechanic contaminated the MAF.
I used ITG panel filters - better than OEM. Safer too, than the induction kit.
Then get it mapped
Dan
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