I hope I don't sound like a tard,
I am pretty confused about which map I should be using and what kind of gas. I just got off the phone with a guy at COBB Tuning Surgeline.
I phoned because I want to get a pro tune and trying to get one in Vancouver is hopeless. Rockey Rally pays no mind to me while rally season is in full swing. They have a one month backlog and so they don't even answer the phone. LMAO!!!!
The dude at COBB asked questions, like my elevation, my mods, and what kind of gas and what map I am using.
I was using 91 octane (I buy ONLY Chevron) until I went to stage 2 a couple weeks ago. I drove the car with 94 octane to the shop to get modified. I am roughly at sea level and not in the mountains. I am using the SF93 Stage 2 map at the present time.
Now, I am pretty confused about a couple things after this phone conversation. He told me I should be fine with my setup and don't need to come to Portland for a tune. Based on everything I have learned, I think I do. Why would he tell me I don't? He also told me that 94 octane gas (with no ethanol) is no good. He says to flash the SF91 Stage 2 map and use 91 octane gas as ethanol is an octane booster? WTF?!!! Really? I suppose im not a chemist and don't fully understand, but this seems to make no sense to me.
Basically, my car has been stage 2 for two weeks now. It runs fine, fuel mileage is fine, I monitor my logs for knock and boost creeping and I have seen nothing that I should worry about. 0 boost creep. I have seen knock but only when I mash the throttle and it learns it away instantly. I don't know what map I should be running. What does ethanol really do? I know in Canada...at Chevron...the 91 octane gas "may contain up to 10% ethanol" and 94 octane gas "contains no ethanol" as quoted on the gas pumps at every Chevron.
Please help educate my dumbass. I am confused about getting a pro-tune. From what I gathered, I need to do it. So I decided to pick up the phone and schedule a roadtrip (5 hrs from me to Portland) only to be told I don't need to by Cobb. My head is spinning. LMAO!!!!
Any responses would be much appreciated. Thanks for reading.