Key part after getting a methanol injection kit is converting your gasoline AFR to meth/gasoline by using lambda for the correct mixtures and tune. If you have an innovate gauge you can conver the display to lambda for ease of tuning. Once you add meth/water or a pure meth mix, the afr for a stoichiometric mixture changes.
I'm just wondering cause I'm running methanol, and I'm pretty sure I can switch mine for lambda, I haven't tried it, but there is a switch on the back.
Also, what number in lambda should you be shooting for?
lambda is 1.000 which in AFR for gasoline is 14.7 and methanol is 6.4.
Old AEM UEGO gauges go low as 11 AFR only and new ones go to 10 AFR only. So the AEM is still useless in tuning cars with pure meth, at least in AFR display mode.
I think I may have to make a trip out to DFW. Can you tune the Unichip with 440's, vics removed, and methanol now? I know there were some problems before, but I thought I read you worked them out.
with gasoline in boost you want around a safe 11.9 afr which is .814 lambda. however pure meth will be a lot less, but in our setups we would be running a meth/ gas mix.
if meth is stoich at 6.4. and gas is 14.7, the problem now is how much gas and meth will we be using and what will be stoich for that mixture? this is where using lambda tuning will be easier.
I edited my last few posts to make it clearer. I wouldn't run meth on the Unichip. The 440s work but flip out once the MAF reaches its range. Hard to explain it w/o showing you the fuel table, but say 10 psi at WOT is load cell 120, and at 16 psi its the same thing at load cell 120 and at 5000 rpm. obviously 16 psi will move more air than 10, so the fuel cell value will now be off.
however, the digital gauge only reads 2 decimal places. lambda is usually read to 3 decimal places. you can get the full display if its hooked up to an EMS.