Check My Log Please

[Spaceme17]

Hello.

I got my JB4 with fuel wires installed this past weekend. My car is a 2020 GT2 AWD. I am running Map 2. I also have the Denso sparkplugs at 0.24 gap. Only other mods are 3D printed snorkels going into the factory air boxes with K&N filters.

Car felt really good and strong. I did a rolling start into WOT up to about 110 mph when I was in "Mexico" today.

I looked at the log file numbers in Excel and it looked pretty good to me. AFR of both banks looked good. But I am no expert so I need the expert opinion. Log file is attached. Thanks.

 

[runner1]

I’d drop to map 1 or better fuel

 

[Terry@BMS]

Looks pretty normal to me. I'd keep it on map2 on the current fuel.

 

[runner1]

Is the timing dip relevant around the 3/4 mark in the log? I was under the impression that no more that 3 degrees between cylinders was preferred limit. Don’t mean to hijack the thread but I am curious

 

[Terry@BMS]

There are a few corrections but that is fairly common on map2 with lower quality fuels. It's not bad enough that I'd suggest dropping down to map1 but of course we always suggest if the data isn't clear cut running whatever feels best behind the wheel.

 

[Spaceme17]

There are a few corrections but that is fairly common on map2 with lower quality fuels. It's not bad enough that I'd suggest dropping down to map1 but of course we always suggest if the data isn't clear cut running whatever feels best behind the wheel.

Okay then. I always run 93 octane from Shell. May need to find a different station or start adding a bit of octane booster. Would adding a gallon or two of e85 help?

 

[Terry@BMS]

Adding E85 would be great to boost octane, the more the better, up to 30%.

 

[Spaceme17]

Adding E85 would be great to boost octane, the more the better, up to 30%.

Any negatives to doing that? At what %ethanol will the Stinger pump run out of capacity?