| Author | Message | ||
     Joseph C (Condorwatch2) New Member Username: Condorwatch2 Post Number: 2 Registered: 03-2003 |
Hey, I just wanted to share my positive experience with a K&N cone air filter for my 1996 Discovery 1. I've long considered the factory airbox to be restrictive but never did anything due to the reported pros and cons of the K&N filters. Well, with 110K on my D1 and reducing fuel efficieny, I decided to do the mod. I have been very surprised and happy with the result: increased gas mileage from 13 to 15 mpg under the same driving conditions, combined city and highway to work. I was also getting daily OBDII codes P0300 (misfire) and P1316 (misfire excess emissions) but have not had any fault codes for 5 days. I don't know the relationship, may be coincidental but still no more codes. 5 days out and so it has been my best mod. Has anyone else had similar results? | ||
| Garrett (Rover7592) Member Username: Rover7592 Post Number: 60 Registered: 03-2003 |
where did you get the cone filter at? | ||
| Joseph C (Condorwatch2) New Member Username: Condorwatch2 Post Number: 4 Registered: 03-2003 |
I bought a K&N # RE-0920 (3" inlet diameter, ~9" length), advertised as an universal cone filter, from local auto parts store for $45.00 + tax. Since I could not find a premade kit, I made my own connector with common 3" dia. rubber connectors and plastic piping (last piece at 45 degree angle) from the hardware store (total length ~11"). Removing the factory airbox was very easy - a couple of clips and rubber mounts. Installation was also easy, just adjusting length and tightening the clamp onto the existing air hose connector. The filter rested nicely in the well, just behind the left headlight. One thing: what to do with the air flow sensor that was originally screwed into factory airbox? I tied it to the side of the one of rubber mount clamps??? I thought about drilling a hole into the plastic pipe to insert the sensor. Total cost: ~$65.00 (I figured I should recover costs in about 10 tanks of gasoline). Total time: ~40 minutes. | ||
| Paul Kleinkramer (Slipinkramer) New Member Username: Slipinkramer Post Number: 2 Registered: 03-2003 |
Don't over oil that stubby K&N cone filter or its "Good-Bye MAF Sensor". | ||
| Keith Kreutzer (Revor) Member Username: Revor Post Number: 169 Registered: 11-2002 |
JOE WINS!!!! I did a similar thing to my truck and have so far had similar results... Plus I'm pissing off the ECU with too much air flow!! But it runs great!!! I did install the "incoming air temp" sensor so the puter didn't get too mad... But I AM happy... Mine sits behind the #2 battery so I made a quick shield to keep that nasty hot engine compartment air away from my intake too... | ||
| Joseph C (Condorwatch2) New Member Username: Condorwatch2 Post Number: 5 Registered: 03-2003 |
Thanks for the replies. I'll try not to over oil that thing. How would I know if the ECU was unhappy? Perhaps I should install that sensor (was kinda lazy to do it but if it helps...). | ||
| Keith Kreutzer (Revor) Member Username: Revor Post Number: 170 Registered: 11-2002 |
If the IAT sensor senses the air in the intake runner is hot (like in the engine compartment and not in the intake air stream) it will tell the ECM to lean out the mixture and retard the timing.. If the air is cold it will richen the mixture and advance the timing... It would be of benifit to install it... We used to cheat the sensors on our Porsches by adding a resistor in line with the feedback of these sensors... More resistance means colder air and more advance and gas from the ECU... If the ECU is pissed off it will start throwing codes.. One of the more frequent that i get is that the Mass air flow sensor is getting too much airflow and can't correct the mixture enough... An adjustable fuel pressure regulator would help here as would said resistor... In the end it's more to have something to mess with rather than get tons of performance... It's just for fun... |
