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13-04-2009, 10:06 PM | #1 | ||
FF.Com.Au Hardcore
Join Date: Jan 2009
Location: Victoria
Posts: 877
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Today I removed the lower airbox / intake resonator. I used RJO89's instructions from HERE (Post #20 - Thanks mate!)
Here are my experiences: First you have to jack up the car, then remove the plastic lining of the wheel arch, passenger side headlight & fog light (if fitted): After taking out the 3 screws holding it in place, you can rip the whole thing right out (for what it actually does it's huge!) My mate and I then routed a 3-inch flexipipe from under the wheel arch, right up to the pod filter: The smaller pipe here is the one that you get in the K&N Kit. It comes from in front of the radiator: Finished: The result: - Better fuel efficiency! It's dropped from 12.0L/100km to about 8.5L/100km (90% of my driving is done in peak hour) - Very slight increase in power, especially lower down and at the very top end of the range. My overall impressions: After several months of running the K&N setup, I think it has two major downfalls - no heat-shielding & lack of proper cold air flow (especially with the single flexi-tube provided in the kit). It's only now, after running this second tube that I am happier with the performance. I think you'd be better off following this approach HERE Last edited by DZFord; 13-04-2009 at 10:16 PM. |
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14-04-2009, 02:31 PM | #2 | ||
FF.Com.Au Hardcore
Join Date: Jan 2009
Location: Victoria
Posts: 877
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Update: In traffic this morning, the engine levelled off at 10.5L/100km, which is still a little better I guess!
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14-04-2009, 06:01 PM | #3 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: Victoria
Posts: 551
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I doubt this mod will affect fuel economy but if it gives a stronger top end say from 4500 up I'd do it myself. I'd be happy with 15l/100Km so long as it pulled like a 16 year old.
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17-04-2009, 12:29 AM | #4 | ||
Badly Focused
Join Date: Jul 2008
Posts: 487
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Likewise, i wouldn't expect a significant change in fuel consumption from a *stock* car. Driving in peak traffic, your underbonnet temps would be through the roof, and with the K+N intake, your intake air would have been at least 50+ degrees sitting in traffic. The ECU will retard the timing, and probably richen the mixtures to prevent detonation, so there's a good chance that doing the airbox mod to replace the K+N kit HAS improved fuel economy on your car.
-RM.
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07 LT CL, CAI, timing, XR5 springs, LS Zetec wheels 16.045...0.05 of a second! I wanted a 15sec pass! 93 GSR/Evo3...too much to mention, 12.2sec 1/4, FOR SALE! *Maybe we don't try putting holes in things that sink, yeah?* |
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