So now that I have my E85 tune A/F dialed in, I want ti add some timing to take advantage of it. I've seen a lot of guys saying they run upwards 23° +-1° (maniac I got my Posi blower from was running 26° on a 2.93/6#, pretty crazy). Everyone only talks about peak timing though.
I'm wondering to you guys just adding the difference though the whole curve or adjusting the slope. Additionally how steep is the slope you normally run E85 or 93, for instance 3000, 4000, 5000+, etc. I don't max out load till about 4500 so, should I look for a linear increase or let it use the timing from the lower row in the table?
Don said when I switch to E85 to just use the Race Fuel SCT file but that maxes out at 21°, it seems others usually run a couple degree more on E85. On 93 I just ran the SCT 93 Spark table to be safe, with the corn now I feel it's worth asking about this.
Relevant Specs: 8.8:1 CR, Posi Eaton, 2.93/4# seeing about 15.5 +-.5psi, ait2~120.
I'm wondering to you guys just adding the difference though the whole curve or adjusting the slope. Additionally how steep is the slope you normally run E85 or 93, for instance 3000, 4000, 5000+, etc. I don't max out load till about 4500 so, should I look for a linear increase or let it use the timing from the lower row in the table?
Don said when I switch to E85 to just use the Race Fuel SCT file but that maxes out at 21°, it seems others usually run a couple degree more on E85. On 93 I just ran the SCT 93 Spark table to be safe, with the corn now I feel it's worth asking about this.
Relevant Specs: 8.8:1 CR, Posi Eaton, 2.93/4# seeing about 15.5 +-.5psi, ait2~120.