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suspectnumber961 · 10-03-2012, 08:22 AM

I want to make one final point on the cone filter mod. I THINK that the gain is due to increased air flow probably because the the molded in bellmouth shape inside the filter vs the straight pipe of the OEM airbox.

http://www.profblairandassociates.co...mouth_Sept.pdf

Conclusions focus on power gains...OF COURSE.

Evidence of this increased airflow might have been seen from the need to set the trip fuel used DOWN in my SG for the two refills after doing this mod. As I understand it...the SG calculates fuel used FROM the air flow measured at the AFM. Increased flow resulted in the SG calculating more fuel being used than actually occurred?

So if anyone wants to try this mod...you need to see inside the cone filter to be able to check for the bellmouth shape. I think these type cones can be found at Advance or Autozone for $25-30.

The results might be a figment of my imagination and/or they might be specific to the Focus. If your car does not have a bellmouth intake and the cone filter you install does...you MIGHT see an mpg gain.

Anyone fixated on ABA testing probably will not see the salient points.

NOTHING in life is certain...except for death and taxes????

The one exception though are ABA tests of course.

...

I don't expect to be doing a lot of modding in the future...just testing a few mostly easy to do things mostly involving improving combustion efficiency. Won't post them on this forum due to the arguments. I probably save $50 / month on fuel...so it's a hobby...not a job. More aero mods are not going to be happening...though I've done them in the past with my Batmobile 300ZX...vortex generators..air dam...fender skirts...all in black.

10-03-2012, 08:22 AM	#20 (permalink)
suspectnumber961 EcoModding Alien Observer Join Date: Mar 2008 Location: I flitter here and there Posts: 547 highcountryexplorer - '86 Nissan 720 KC 4x4 ST with fiberglass cap 90 day: 21.78 mpg (US) Elroy - '03 Ford Focus ZX3 w/Zetec DOHC engine 90 day: 32.89 mpg (US) Thanks: 6 Thanked 78 Times in 65 Posts	I want to make one final point on the cone filter mod. I THINK that the gain is due to increased air flow probably because the the molded in bellmouth shape inside the filter vs the straight pipe of the OEM airbox. http://www.profblairandassociates.co...mouth_Sept.pdf Conclusions focus on power gains...OF COURSE. Evidence of this increased airflow might have been seen from the need to set the trip fuel used DOWN in my SG for the two refills after doing this mod. As I understand it...the SG calculates fuel used FROM the air flow measured at the AFM. Increased flow resulted in the SG calculating more fuel being used than actually occurred? So if anyone wants to try this mod...you need to see inside the cone filter to be able to check for the bellmouth shape. I think these type cones can be found at Advance or Autozone for $25-30. The results might be a figment of my imagination and/or they might be specific to the Focus. If your car does not have a bellmouth intake and the cone filter you install does...you MIGHT see an mpg gain. Anyone fixated on ABA testing probably will not see the salient points. *NOTHING in life is certain...except for death and taxes????* The one exception though are ABA tests of course. ... I don't expect to be doing a lot of modding in the future...just testing a few mostly easy to do things mostly involving improving combustion efficiency. Won't post them on this forum due to the arguments. I probably save $50 / month on fuel...so it's a hobby...not a job. More aero mods are not going to be happening...though I've done them in the past with my Batmobile 300ZX...vortex generators..air dam...fender skirts...all in black. __________________ *Carry on humans...we are extremely proud of you.* .................. Forty-six percent of Americans believe in the creationist view that God created humans in their present form at one time within the last 10,000 years. GALLUP POLL Last edited by suspectnumber961; 10-03-2012 at 08:34 AM..