Re: EGT Limitation
Very rich AFRs plus water methanol lead to ignition delay and slow flame propagation speed. It has a similar effect as retarded ignition increasing your EGTs.
Misfires can dramatically increase EGTs as the fuel continues to burn in the manifold.
I have no personal experience with EGTs as I do not run a turbocharger.
140cc a minute sound like very little to me. I am peronsonally closer to 600 ml/min on less boost.
What HP level do you run? Engine capacity or type? Sounds a bit like a Honda B16 or B18 spinning 8000 rpm on a turbo. Sounds like at least 300HP to me. In this case I'd work with 450 to 500ml/min mix. I like Richard's rule of 1 to 1.5cc/min per HP.
Sorry to be of no more help.
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