B3 vs B1 for twin on 30' bow rider

[Hai Nhi]

Hello all.

I thought I asked this question somewhere but I can't seem to find it now.

My boat is 1999 Cobalt 292. Currently have 350 Mag MPI with B1.

I'm getting new engines (twin 6.2L 350HP) and I have a pair of B3. I'm thinking about swapping them with the B1's.

Question is, what's the main advantages of having B3 vs B1?

TIA

 

[Bondo]

Ayuh,..... No 1st hand experience, but anybody I've known that has run both, the B3 is miles ahead of a B1,....
No prop walk, great power, just no downfalls,....

 

[alldodge]

Her is your thread
https://forums.iboats.com/threads/b3-prop-pitch-recommendation-needed-please.749168/#post-5695978

The B3 has more bite so there is less slip. Slip isn't a bad thing so long as it stays low.

 

[paulswagelock]

If set up correctly the b1 will be faster at top end, and have less propensity for corrosion. However, boats spend about 5% of their time at top speed. I would stick with the b3 for greater grip, better low speed control, etc.