Did the Loyal come in a turbo? Is it a 2.2 liter engine? This would be a great engine to tune if it is. 8:1 compression should be no problem to drive with a ball bearing turbo. I thought that the Legacy turbo used an A/W intercooler setup. Front mounted radiator. Maybe you can check the serial number on the engine and call a subaru dealer. They should be able to tell you.