Prop choice 2001 bayliner 4.3 warmed up

[northertunder]

I have a 2001 Bayliner 185 capri with a mercruiser 4.3 with 9.8 compression piston the blocked is decked 40th heads 20 th a little more cam shaft edelbrock 4 barrel carb and manifold and a few other things it has the stock 19 pitch prop what prop do you boys think i should try i can slip the stock prop when hitting the throttle hard at almost all speeds. Thanks for the help

 

[Bondo]

Re: Prop choice 2001 bayliner 4.3 warmed up

Ayuh,... Up in the Prop forum is a thread "Read This First"...
It contains the Required info for dialing in the Right prop...

 

[ramster]

Re: Prop choice 2001 bayliner 4.3 warmed up

Captain Loud has almost your same setup, warmed up 4.3 in a 94 1850 LS, and he spins a 23 stainless 3 blade to 5200, which is a bit high, but it's not a real high tech prop, I think it's a Merc Black Max a painted stainless. I think for speed you need a Turbo or Stilletto 23 or maybe BayPro 4 blade in a 22.

 

[jkust]

Re: Prop choice 2001 bayliner 4.3 warmed up

What sort of GPS top end are you getting out of that rig?

 

[ramster]

Re: Prop choice 2001 bayliner 4.3 warmed up

I think he gets about 57 mph, with a better prop I think he'll get 60

 

[jkust]

Re: Prop choice 2001 bayliner 4.3 warmed up

Impressive, wonder what all the mods cost. I'd for a 4bbl and ss.

 

[dsmmace]

Re: Prop choice 2001 bayliner 4.3 warmed up

I have a very similar setup, I can spin my mildly damaged 21P aluminum up over 5000rpm quite easily. I haven't tried to go any farther, but I'm sure it would keep going.

Before I did the motor it would turn 4800rpm and show 47mph on the GPS.

I am going to try a 23P aluminum prop to see what rpm it will bring me down to and then take it from there. The local prop shop has some decent prices and allows you to trade in until you are happy.