302 w/ 6.2 props?
 

Seeing what pitch prop these run. I thought a friends runs 23p mirage pluses but cannot remember.

Thanks in advance. :cartman:

That's what I have on my 7.4mpi 302, if that helps.

I think you will need 19p or 21p Mirage Plus to get the RPM's up to the 6.2 rating.

XT

+1 I think the 21 pitch would be the starting point!!!

I had a 302 and 29 OL with 7.4s. I would think a 22" 4 blade would be perfect on that setup.

WOT is 4800-5000 on a 6.2 correct?

Prop slip calculator at 16% with 23p @ 5000 shows actual speed near 59mph. I figured this would be pretty close. I however am willing to listen as I have NO experience with this hull. Being straight bottom, i am not sure if this hull would benefit from the xtra stern lift from a 4 blade but the mid range cruise as stated with a 22 Bravo prop may be good. Any more input? Im all ears. Just trying to help a friend out.


Chris

Chris, the 6,2s are rated for 4800-5200. If memory serves, the good number for top end is 5100-5150. If you are concerned about stern lift from 4 blade B1 props, you should run Rev4s instead of the B1s, unless you plan on labbing them.

Bblades has a propeller program. Call them & get a set of Bravos & Rev4's in the pitch Bret recommends. Then you'll know what will work best.

+1

Big difference between the 7.4 MPI rating of 4400 to 4600 and the 6.2 rating. I recall that even at Baja many early 6.2 powered boats left the plant "over propped". I would recommend that they stay with a smaller prop at 5100 than a larger prop turning 4800, even if the top speed is the same.

XT

Thanks for all the help guys. Does anyone know where I can find cockpit carpet and a cockpit cover besides having one made? Curious if the covers are all the same or the boat will have to go to an upholstery shop. Giving Brett at Bblades a call in the morning.