Hi there!
I'm from Europe and I have a 2007 Civic 1.8cc R18A2 engine, the hatchback european model...
Differences from R18A1 and R18A2 that I know: engine is pretty much the same, the A1 was built in US/Canada and some units had the engine block cracking issues. google it to find more info..
Gearbox in Europe there is 6 speed manual, and 6 speed auto or sequential called i-shift
The R18A1 I guess there is 5 manual with taller gears, and cvt I guess?!
Civiv Body is different from the US sedan, heavier but more aerodinamic...
I have a Scangauge and I still don't know the best way to maximise mpg on my Civic with my daily comute...
Still don't know best way to get up to speed: 70-80% load, or 99% load without enrichment...
Still don't know wich are the best shift points: 2k, droping to 1.5k, or 2.5 droping to 2k, or even 3k droping to 2.5k... Because this engine will enter easier on his eco i-vtec with the rpms above 2k... from 1k-2k rpms is dificult... the higher the rpm the easier the eco i-vtec engages, limited to 3.5k rpms.
It is LOAD dependent, and since we can get more hp and less load at higher rpm it's easier to engage i-vtec... (I have a i-vtec led light
)
Also, low rpm bigger gear, could not be the best way to mpg for this engine since i-vtec reduce pumping losses, so 2.5k rpm can be better then 2.0k rpm...
Well you can check out this threads to more info...
check it out and let me know your thinkings
happy if we can help each other figuring this engine out for maximum mpg!!!
REgards.
http://ecomodder.com/forum/showthrea...7-a-30111.html
http://ecomodder.com/forum/showthrea...1-a-29429.html