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Old 04-01-2016, 05:12 AM   #52 (permalink)
Daschicken
EcoModding flying lizard
 
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Join Date: May 2012
Location: Georgia
Posts: 743

Cibbie - '88 Honda CBR 250R
Motorcycle
90 day: 48.49 mpg (US)

Rarity - '06 Honda Accord EX V6
Team Honda
90 day: 29.88 mpg (US)

Baby viff - '86 Honda VFR 400R
Motorcycle
90 day: 42.15 mpg (US)

Latios - '08 Suzuki SV650SF
Motorcycle
90 day: 64.56 mpg (US)

Mazda 3 - '14 Mazda 3 i Sport
90 day: 43.25 mpg (US)
Thanks: 618
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Quote:
Originally Posted by serialk11r View Post
Forgive me if you mentioned this already, I haven't gone through this thread in a while, have you thought about ECU tuning? You're lucky you have a Honda (can use Hondata Flashpro), it's not like Toyota where you need to use piggyback or a crappy standalone like an Apexi PFC.

Right now there's a chance you're sending a little extra fuel out the tailpipe when you step harder on the throttle (from what I can find on Google images, your engine seems to activate open loop enrichment at low speeds). If you get a flash you could get rid of that. You can also add enrichment and then use a narrowband emulator to run lean and get a 5-10% boost in fuel economy. On these bigger engines it should really help a lot.
Nope, haven't mentioned tuning previously. I know there is plenty of ECU support for K engines, haven't heard much of tuning J engines. I'll have to look it up when I have time, right now aeromods take priority because my commute is 90% highway, and I have a family road trip coming up. I used the scangauge to see when open loop occurs on my old 4 cylinder accord and it was only during warmup and above 90% load I think, have not set the loop gauge to monitor the V6 yet. I'll try it out. As for running lean...Ehh...I would rather add ignition advance before trying to run lean. I don't like the idea of increased NOx emissions either, but I would be all for removing fuel enrichment below 80% load.
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Best trip in V6: 52.0
Best tank in V6: 46.0
Best tank in Mazda: 49.9
Best tank in CBR: 61.3
Best tank in SV: 83.9

Quote:
Originally Posted by MetroMPG View Post
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