E85 Powered VR4?

[a2j]

Originally Posted by ver fer

What do your O2's look like?

never looked at them

[a2j]

another question... if I put 550 instead of stockers and run e-85 only without aftermarket fuel controller with that be ok or I'll run rich? or maybe 450 will be enough?

[91vr4n00maxima]

Originally Posted by a2j

another question... if I put 550 instead of stockers and run e-85 only without aftermarket fuel controller with that be ok or I'll run rich? or maybe 450 will be enough?

i cant say without doing it myself but 450s on e85 would be a very close match to stock 360s and gas.

im going to be doing 550s in my 97 to replace the 450s and run e85. with the proper correction this will give me a 450ish cc correction factor, slightly more timing, and the fuel my near stock car will want for e85

[a2j]

Originally Posted by 91vr4n00maxima

i cant say without doing it myself but 450s on e85 would be a very close match to stock 360s and gas.

im going to be doing 550s in my 97 to replace the 450s and run e85. with the proper correction this will give me a 450ish cc correction factor, slightly more timing, and the fuel my near stock car will want for e85

so 550s than?

[91vr4n00maxima]

Originally Posted by a2j

so 550s than?

for a lightly modded vr4 i would reccomend 550s for e85 use. maybe even a 13g car but might need a slight pressure bump up top.


550s and a fuel computer. 450s without a fuel computer (the ecu should be able to tune enough for them on e85)


i would still reccomend an afc on both so you can go back to gas if necissary.

[a2j]

Originally Posted by 91vr4n00maxima

for a lightly modded vr4 i would reccomend 550s for e85 use. maybe even a 13g car but might need a slight pressure bump up top.


550s and a fuel computer. 450s without a fuel computer (the ecu should be able to tune enough for them on e85)


i would still reccomend an afc on both so you can go back to gas if necissary.

yeah, thats what I was thinking. and A/F gauge.

[a2j]

what should I be watching for on logger? IDC? what else?

[ver fer]

Knock and O2's

[a2j]

o2 around 96
knock:2-4 just for rev the engine.
thats at cruising speeds.

at WOT:
knock 15
IDC: 120% (thats to be expected)

[ver fer]

You shouldn't be getting any knock if you rev the engine. Your O2's should be cycling when cruising.

What are your O2's at WOT?