I have calculated my pressure ratio and my compressor flow for a single turbo set up. I was wondering what I would need to do to calculate these items to find a suitable turbo(s) for a twin turbo set up. Do you treat each 4 cyl. seperate?

 

Just divide your airflow (CFM or lbs/min) in half, and plot it on the compressor map. Use the same PR (pressure ratio) as you used for the single calculations.

Most compressor maps list airflow as lb/min- if your calculations compute CFM, you need to multiply CFM by 0.069 to convert to lb/min.

 

Thanks 89JYturbo

I just wasn't sure what needed to be dividedin half.