Originally Posted by jpz_67

I will start by first saying I am not one to ruffle feathers but how can it be possible to run a grp motor at 220 and be shortening its lifespan? Is the motor not an ABC sleeve with aluminum piston? What makes the motor so much different than anything else out there that it must be run at that cold of a temp? I do not tune for numbers but by smoke, sound and performance. I use temp only for reference. I am interested in a grp but all this talk of running the motor at such low temps just doesnt sound right.