BMS on 91 craptane

[tws_andrew]

Who runs BMW on 91 if anyone. What settings do you run and do you feel the risk/reward is worth it on 91? New CP is broken in now but we only have 91 here

[M5Rlz]

No e85 out that way? Mixing those two should net you 93.

[tws_andrew]

Used to be a few e85 stations near and I ran it in my GTR for a bit but nothing close anymore. No one bought it so they quit selling.

[greentrbo95gst]

I run it all the time. No issues. 2.2 psi over stock. You can also add a can of NOS octane booster to 15 gallons of 91 and you will get a 93 octane out of that.

[tws_andrew]

Any idea what 2.2 will give for power and tq? Just wondering if a possible warrant issue (even if remote) is worth the small gain under the 3.0/3.5 setting

[greentrbo95gst]

Keep in mind I have the old version of Bms.

[EuroKar]

Originally Posted by tws_andrew

Who runs BMW on 91 if anyone. What settings do you run and do you feel the risk/reward is worth it on 91? New CP is broken in now but we only have 91 here

I run 3.5 all the time on 91 and I run VP fuel (C12) from time to time as well. 50/50 mix with 91.
Car is an absolute beast !!