[victor3]

Hi to all - my first post on the new forum. :razz:

I'm running a T16 Rover turbo engine in my Maestro with Emerald K3 software. I have a 3-way map and the 1s system is set to only come on at the high boost (15.4psi), measured at 281bhp / 302lbft.

Dave Walker at Emerald was wary about mapping this high setting with WI, so it's mapped without this and the WI is just switched on for relatively hot days at the loss of about 3bhp but inlet charge cooled at a drop of about 14 deg cent. Power is not a problem as the car is really too light for this setting to be used on anywhere but a dry and well surfaced track.

Currently using 20-25% methanol, rest H2O with a 0.5mm jet.

What would be the plusses and minuses of using a bigger jet and/or changing the meth/water ratios?