My friends 242 502ho, worked The best with REVOLUTION 4. My single 26ft stinger loves it also, was The best with Old 500hp 502cid /high x, 4.7" Below, now with 670hp /3.7" Below IT is also The best prop. Have tried few bravos and those sucks big Time, worst of all tested props.

Your prop slip is around 30% with the Bravo prop.

Did you remember to take trailer off the boat ?

You are fighting a losing battle with that much hook.

This is the standard hull hook they all have.




This is the x-Dim i drive now. 5.9 prop shaft below bottom.

any suggestions?
Or take the revolution, go 55mph and call it a day? or try 21 revolutiuon?

There IS something wrong in your math. I swear your X- Dim IS not 12.83.

what do you mean?

By merc A IS 21.8", 21.8"-5.9"= 15.9". X-dimension =15.9".

your right. something is wrong here. I cant check on it because the boat is in the water right now.
Okay so 15.9 X-Dim would be fatal high?

The factory hook on the 242 is only from the strake to the chine. Once the boat is out of the water, the hook is no longer a factor.

The 26 four blade you tried has way too much pitch for a 502 in the 242. The factory prop was a standard Mirage 23P. You might want to try a 23P Mirage+ or a 22P Bravo.

Why was the X dimension raised? I had a 242 and contemplated raising the X when the transom and stringers were redone, but opted to leave it alone. That boat had a supercharged 454 that ran upper 80's when I had it; all with the factory geometry.

I didn't try a 26p four blade. Had 23 revolutuion4, 24 bravo, 23 Mirage. All just turned around 4100rpm

On this boat all the stringers bulkheads and transom were made new. I Put the X-Dim on the higher side because i thought Shorty is expensive, spacer is cheap.