I have been reading up on the ins and outs of running E85 lately. All my cars require premium gas and its such a pain in tha arse. I learned a few things about running e85 such as:

1. Requires more e85 than regular gas would
2. Need bigger injectors if converting for e85
3. Need a hotter sparkplug if converting
4. Need to lengthen spark pulse (to spray more fuel)

My theory (asuming a d16z6 motor) is to keep stock injectors, upgrade to a hot plug (Bosch platinum 4+) and simply lower compression, either on pistons or a low comp headgasket. Target a 8.5:1 cr. Granted you would take stock hp from around 125 to around 90 ish. But in a goal of a fuel freindly daily it doesnt really matter. I used to have a 5th gen civic 4dr automatic with a d15z1 swap (due to blown d15b7) wich had roughly 92hp but was fine in that size of a car. Would a wideband rich/lean reading still be accurate for running e85? I know just dropping e85 on a non-converted car causes the car to think its running lean (is it really?). I have tested a %70 mix of e85 and regular 93 and did get a CEL 1 (o2) which I guess means its lean. After restarting the car the code is cleared. Please keep the flaming to yourself. Just some random thoughts...