Michigan Apollo Prop

[THEFERMANATOR]

The 163 means it's a vengence prop. That's a 14.5"x17p entry level prop known for having alot of slip. I've got one out in the shed. It SLAMMED the 5k rpm rev limiter when I tried it on a 25' searay I had with a 5.7l i/o. Swapped in a 17 pitch apollo large diameter(mirage copy without vent holes), and it dropped back to 4300 rpm's. That was over a 700 rpm drop(don't know the actual drop since the vengence slammed the limiter with ease) staying with the same pitch. Ended up having the prop repitched to a 16 so we could get back up to 4800 rpm's wot.

So don't let them being the same pitch throw you, try it out. That 27 searay my neighbor has had 21 pitch vengence props on it, and would need 17 pitch mirage's to keep the same wot rpm's.