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Fuel economy tune
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Topic: Fuel economy tune (Read 5732 times)
Capt. Obvious
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Fuel economy tune
« on: August 01, 2011, 11:56:23 AM »
I often take my S4 on long road trips and I was thinking it'd be nice to have a "maximum fuel economy" tune I could load up for times like that. Obviously, staying out of boost is the best way to keep the fuel consumption in check, but what are some other things I should look at/tweak in order to make a fuel economy tune?
I'd like to still retain some power for passing and pulling hills, so I guess most of the attention for the tune would be with low-load conditions.
Any insights/ideas?
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phila_dot
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Re: Fuel economy tune
« Reply #1 on: August 01, 2011, 12:19:38 PM »
Have you read this thread:
http://nefariousmotorsports.com/forum/index.php/topic,530.0.html
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Capt. Obvious
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Re: Fuel economy tune
« Reply #2 on: August 01, 2011, 12:36:37 PM »
I missed that one, thanks. I'm assuming most of the talk regarding closed/open loop operation will directly apply to my car as well?
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Giannis
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Re: Fuel economy tune
« Reply #3 on: August 03, 2011, 11:03:17 AM »
I'm using this kind of tune for a while but using it on a national road doesn't decrease fuel consumpion so much. It has though remarkable resoults in country roads when cruising at lower speeds such us 70-90 kmh. Try to increase your timing a bit and keep lambda at 1.10 - 1.14. Post the resaults. It would be interesting to see what happens i bigger engines than 1.8t.
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nyet
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Re: Fuel economy tune
« Reply #4 on: August 03, 2011, 11:08:57 AM »
IMO a taller 6th would probably help more than tweaking lambda..
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