[Mister Pontiac]

Originally Posted by Dragncar

Mini starters spin the engine over slower than factory type. They are gear reduction.
I lost 20lbs in a compression test just going to a mini starter. But they start your engine great. Headers cook factory starters is the reason so many buy mini starters.

Not sure this is completely accurate. If the mini-starter motor spins at the same speed as a factory unit, then add in gear reduction, sure it will spin slower. But if the motor itself spins much faster, even with gear reduction, the starter spins the engine at the same (or even faster) speed than stock.

Sounds like your mini starter is indeed a slower gear reduction unit.

My RobbMC in my 67 GTO spins just as fast or faster than a factory unit, and it too is a gear reduction starter.