Fixxxer22

no, i ebayed it. but it was a mercury vensura 4 blade. you can get them pretty cheeep.

rchevelle71

iTrader: (1)

Jus checkin', doesnt hurt to have a spare, or try another prop, so far the mirages have been best.

35thls1ss19

so i got the motor back together. I put on an air gap intake, edelbrock carb and a new head. re adjusted my valves. Checked comp and all cyl are 130+. Still getting 3800 rpm!?!? I got my advanced timing set at 32*. I am lost now.

Can it be the drive? I read somewhere that BBC alpha combos cam with the 1.32 gears to put less stress on the drive? I will go buy a 1.50 if you guys thinks that the problem, there all over cragslist. Over the winter i am thinking of upgrading to bravo.

PatriYacht

Or buy a smaller pitch prop.

35thls1ss19

but a BBC spinning a 17 pitch?! sounds stupid does it not?

i have read alot of bravo 223ls guys spin a 21 is this bc of the 1.50 gear drive?

badluck

How is your exhaust routed, thru prop?

Fixxxer22

the 1.32 is for sure holding you back. i have a 1.36 and i switched to 1.50 and i will never go back. my boat was custom order by an idiot. it had a factory 502 mag with the "claimed" 415hp. i was running 19p props and not even getting up to the right rpm. but keep in mind that the number on the prop has no effect on how bad ass the boat is. it is all about getting to your target rpm and if you cant get there with your current prop and drive setup.... the props will be cheaper.

i had bad gauges. last year i was running a 500hp and i thought i was getting 5600rpm with a 24p bravo1 4 balde with a 1.36 drive. guess what i was wrong. i got a 1.50 drive now and 570plus hp with a marine kinetics (bob madera) engine. running in the low 70s with that same prop. that 24p bravo1 and running 5500-5600 with a new set of livorsi gauges. plaining is amazing and the boat is better than ever.

also, if i had the correct gauges i would have known my WOT rpm was low. i would have propped it correctly and gone from there. which is what i reccomend from here. prop it right and you will be happy as long as you have no base engine issues.

happy boating buddy and i really hope you get her whipped.