Cold air intake MPG improvement? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 7 (permalink) Old 12-22-2010, 01:42 PM Thread Starter
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Cold air intake MPG improvement?

I am thinking about installing a cold air intake on my 2001 Excursion. I was wondering what kind of MPG improvement I should expect? My truck is pretty much stock except for a SCT and open exhaust. This is my daily driver looking to improve MPG. Well isn't everyone?! Any real difference in the brands?
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post #2 of 7 (permalink) Old 12-22-2010, 05:14 PM
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Re: Cold air intake MPG improvement?

0 mpg's most likely..IMO best is the Tymar with the big Donaldson filter..thats why I only sell them not all the others that I could. Or do a DYI correctly.

Cary

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Introduction only. Please email if I can help.
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post #3 of 7 (permalink) Old 12-22-2010, 06:16 PM
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Re: Cold air intake MPG improvement?

I had the napa 6637 on my 97. Really did nothing for mileage. Made more turbo whistle though.

06 F350 6.0 KR CCLB FX4...stock
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post #4 of 7 (permalink) Old 12-22-2010, 06:22 PM
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Re: Cold air intake MPG improvement?

CAI MPG improvement is most often on carburated engines, has to do with vacume and fuel draft. About the only time you see an MPG improvement on an injected engine is if you spend a lot of time near peak power RPM or have a dirty unit to begin with.

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post #5 of 7 (permalink) Old 12-30-2010, 07:04 PM
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Re: Cold air intake MPG improvement?

I installed a DIY6637 style open element intake and I hated it. It was way too loud in the cab. Of course, for a while, you will like the sound just like open headers or loud motorcycles but in real life when making long drives and towing/hauling I did not like the noise.

Best option is the Ford AIS. It is factory. Factory looking, quality, and super good filtering along with hugely increased air flow and ...... quiet.

Oh and zero mpg though I felt an increasae in top end acceleration over the OEM crappy airbox.

2000 F350 SRW, 4wd, CCSB, PSD
Lowered rear end to F250 height, 4" exhaust w/ muff, foil delete, AIH delete, Ford AIS intake, tru-cool trans cooler, autometer under dash pod and gauges, Mile Marker hubs, 04 headlights, soft tonneau

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post #6 of 7 (permalink) Old 12-30-2010, 10:36 PM
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Re: Cold air intake MPG improvement?

More gas-engine thinking on display.

Diesels run on excess air anyway. Cold air intake means squat for MPG.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
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post #7 of 7 (permalink) Old 01-04-2011, 02:14 PM
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Re: Cold air intake MPG improvement?

I found my intake only helped when I was towing 10K or so. even then, I'm talking about .1mpg above the previous 10k towing average.

Dan
96 Powerstroke: 6637, downpipe to dump exhaust, 140v IDM and a shift kit.

84 Honda Sabre V65 1100: pipes, jet kit and new tires. Faster than I think I'll ever need.
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