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Replacing/removing airbox with K&N 1.9D?
#1
Anybody replaced/removed their original airbox/filters etc with a K&N air filter on a 1.9d?

My airbox is very rickety and literally held together with cable ties to stop it rocking about. This got me thinking could it just be removed and replaced with a K&N positioned near to the grill? Are there any sensors or wiring that I need to take into consideration?

I know its not going to make any crazy performance gains!!! But the current air filter housing hangs down very low on my van (lower than the sump) and I would like to eliminate this

Any advise or help would be greatly appreciated.
2001 1.9D 800 160000
[-] The following 1 user says Thank You to wellsy for this post:
  • G.mk3
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#2
Can't see why not,engine will breath better,I was thinking the same
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#3
"My airbox is very rickety and literally held together with cable ties to stop it rocking about. This got me thinking could it just be removed and replaced with a K&N positioned near to the grill? Are there any sensors or wiring that I need to take into consideration?"

I know what you mean as I`ve a similar problem . The only thing is the air mass sensor on the air filter box outlet.
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#4
With a 1.9 all you'll gain is more noise ......
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#5
You will also lose some power too,the air box is tuned for lowering resonance from the engine pulses which also affects performance. They can get a nasty drone sound from removing the air box.
I have a K&N Apollo fitted to my mk1 berlingo. But mine is encased in its own (legal)box at the front with the original box still installed, minus the old filter.[Image: 309cac226684fc9bf88b6cc24e0fa1b7.jpg]
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#6
^^^ Yes power loss is a distinct possibility !!

A few years back I fitted LPG to a Series Land Rover and initially for test purposes I had a " lash up pipe " leading from the air box to the carb mixer and the engine ran really well ..... later on I replaced the pipe with a cosmetically improved same diameter pipe but the outcome was unexpected ... the engine ran poorly and had a lot less power.

Each pipe was internally ribbed and of differing lengths otherwise exactly the same.

So began a series of tests to find the best combination of pipe type and length and after much fettling and scribbling down of test results I found the optimum. Having Megajolt ignition allowed me to plug in a laptop for live monitoring as I drove around my test circuit / local hills and analyse the data.

So all of the above work just for changing pipe type and length !!! At least if you do swap to K&N it is easily reversible and the filter can be sold on to recoup some of the outlay, personally I'd go to a scrappy and get more of the same in better condition, just my experiences.
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#7
(25-11-2016, 09:17 AM)geoff Wrote:  ^^^  Yes power loss is a distinct possibility !!

But it's a 1.9, will you notice a bit less power  Confused
So where does this bit go then ?
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#8
Unfortunately yes ..
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