Originally Posted by
malik
I have a PTM 5 port and my buddy has a PTM .25 and we both at the time had them in truggy. Off the line he had more torque but by the end of the straight He was reved out and I was still pulling. I was running a Dynamite 086, and he was running the GO 0801. So yes to me the 5 port .21 does have more top end than the .25.
well it'd only make sense that a .21 has more top IMHO but the 21.5 port derek is a great motor modded or stock...plenty of torque for truggy and plenty of top...won't blow by speeds but won't get left either for the price it's an excellent motor...just needs a little care...I will be switching rods on mine @ 2 gallons because these motors have more pinch than any motor i've ever owned and does a thing or two on the rod..