Drop-in air filters

[Upguy1]

ok heres the thing about drop in air filters

 

oil based filters can screw the maf sensors

 

stainless steel filters allows the dirt to enter the engine more effectively than stock filters

 

what about aftermarket non oiled/non stainless steel, cotton based drop ins then ??? like simotas and apexis etc...

 

isit advisable to use these to replace the stock ones ??

keen on getting the simota drop in...

[Nine_eleven]

if oil based filters are re-oiled properly, the MAF will not get fouled.

[Vtim]

I've used K & N since my 2nd car back in 94' and now on my 6th car, I'm still using K & N oil-based filter, you need to know how to re-oil the filter after you cleaned it

[Elfenstar]

if you want a drop in i would suggest you stick with the OEM paper filters. contrary to what most aftermarket brands say, there is minimal to no drop in flow as compared to the other filters.

 

99% of the gains from using a pod filter is from the removal of the restrictive OEM intakes. and the paper filter in a standard system still flows more than the intake can flow.

 

if you're going pod, it doesnt matter if the filter id oiled or not. Just that many people don't know how to oil it properly thus resulting in damage to the sensor.

 

speaking of sensors there are 2 types. one type uses pressure and a temp sensor to calculate the amount of oxygen going in. the other uses a heated element and the ecu calculates the amount of oxygen from what the temp of the element should be vs what it is. the latter is the one that is affected by improperly oiled filter.

[Smallblacks]

ANy tips on how to not over oil.

I had a hard time on this.

[Vtim]

1) After washing, I'll use the hair dryer, set to hot air, to blow dry the filter elements, do not put the dryer too near the filter, do it as if you are drying your hair after shower.

 

2) Oil the element until you can see that all the element are cover with red oil (see thru' the element by putting the filter element against the lights or the sky)

 

3) Put some newspaper on the floor and leave the K & N air filter on top of the newspaper overnight, the newspaper will absorb any excess oil that have drip onto the newpaper.

 

4) The next day just pop-in the K & N filter.

 

** If during the period that the K & N filter are being wash, dry and left overnight, you need to use the car, just pop-in the original paper air filter to use for that day

[Smallblacks]

So as long as there is no more oil dripping from the filter is ok right?

[Bluecity]

ok heres the thing about drop in air filters

 

oil based filters can screw the maf sensors

 

stainless steel filters allows the dirt to enter the engine more effectively than stock filters

 

what about aftermarket non oiled/non stainless steel, cotton based drop ins then ??? like simotas and apexis etc...

 

isit advisable to use these to replace the stock ones ??

keen on getting the simota drop in...

 

Simotas are required to be oil too.

 

If you really wan something out of Stainless steel and don't wan oil.

 

Get Apexi or Blitz.

[Upguy1]

simota ones need not be oiled...btw

[Vtim]

that's right but best is to oil th filter and leave it overnight as it may still drip very slowly

[Upguy1]

anyway settled for the simota cotton drop in filter.....oiling is optional according to the box....so far pickup is better than stock.... my intake temp also approximately 10 degrees lower than stock...which mean im feeding cooler air into engine....

 

the ws that i bought from no longer carries the stainless steel ones....heard engine can clog up with ss ones.

Edited September 17, 2006 by Upguy1

[Tkseah]

Ermm.. how come change of drop-in filter can affect intake air temp??

[Vtim]

yes, SS let in too much dust

[Bluecity]

of course lah. air flow rate is different already mah. Restricted air flow, the temp will goes up. better air flow, the temp will go slightly lower lor.

[A5__]

Hi there VTIM, would you know whether there is a K & N air filter for the Grandis? Thanks. Sorry to steal the tread. Or for that matter any air filter that can have better performance for the Grandis. So far checked Green and K & N haven't found. Maybe looking at the wrong places. Any help guys? Thanks.

[Vtim]

For K & N, you can check here :

 

SPEEDWORKS SINGAPORE

Guan Hua Warehouse Bhd

85 Genting Lane #03-04,

Singapore 349569

Tel: 6743 7288

Fax: 6842 5427

Look for Mr Loo

[Tkseah]

Slightly lower i can understand.. but 10 degrees??

[Tkseah]

Btw.. how much does the simota cotton filter cost??