[Richard L]

A supcharged engine normally produces more heated air than a turbo due to bulk mass of the housing. At low throttle opening typically cruising at high speed, the temperature of SC housing is going rise rapidly due to lack of cold air passing through it, this is on top of the SC efficiency.

The moment you snap open the throttle, the first gust of charge air coming out of the SC is going to be very hot. This may set off knock. Once knock has started, it often continues.

I belive you need a 0.6mm nozzle minimum. As the HFS-3 is progressive it is unlikely to over inject. I will aslo send you a smaller flow FAV so that you will get a more linearly and progressive flow. The valve we supplied with the kit is capable of flowing 1600cc/min. Although you can use a restrictor but nothing like a custom valve that is tailored to your range.

We just return the entire FAV assembly back to me.