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Old 10-15-2012, 11:21 AM   #35 (permalink)
Diesel_Dave
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Join Date: May 2011
Location: Indiana
Posts: 1,194

White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
90 day: 37.68 mpg (US)
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Quote:
Originally Posted by oil pan 4 View Post
What do you believe the gain was for your rammed air intake?
I want to use your data for a CAI/rammed air ecomodder wiki for diesels.

Don't want people thinking they should be putting a warm air or hot air intake on their diesels for FE.
I still haven't gotten around to doing any A-B-A testing, but I still agree with what I posted earlier:

Quote:
As far as the FE numbers, I think there is an advantage. My average of the last ~600 miles with the ram CAI installed, I've averaged 50.28 mpg on the overhead. This is a 4.1% improvement over 48.29 mpg for the previous 600 miles. Both periods had similar tempeatures (79 deg F avg temp). I don't think it's fair, however, to ascribe the whole 4.1% improvement to the intake. Recently, I've really racheted up the hypermiling intensity in an effort to break the single tank range record. If I had to guess, I'd say probably 1% FE improvement from the intake, but it's hard to say much of anything definitative about such small differences.
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Diesel Dave

My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".

1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html


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