RE: Irvine 72 tach readings
Please write here the prop and thrust data for your Irvine72. I am interested too see how other people are using these beatiful engines.
Mine is one of the last ones made in the UK. The newer ones are made by OS in Japan, but I dont know if there will be any difference. I hope they dont change the carburetor so much because I really liked them and they work great in combination with a Perry pump VP30.