WildSpirit
New Member
Hi. Wondering if anyone has any info on the cruising RPM and WOT RPM on the subject engines.
Operating RPM for Ford1W (Mercruiser233) engines
- Thread starter WildSpirit
- Start date
cmount1
Member
- Feb 14, 2011
- 212
- Boat Info
- 1979 300 Express
- Engines
- Twin Chrysler 330's (440ci or 7.2L)
Here's the info Sea Ray lists on their WEB site, for what ever reason a 1976 300SB is not listed, 1979 is the 1st year they show the 300SB. I believe the spec's would be the same, there's not much of a difference in those years. Someone might know different.
Year Model Engine option Ratio Prop size WOT RPM
1979 300 SB Twin 228 Merc 1.5:1 16 X 15 SB 4600
1979 300 SB Twin 255 Merc 1.5:1 16 X 18 SB 4200
1979 300 SB Twin 330 Merc 1.5:1 17 X 18 CP 4200
Year Model Engine option Ratio Prop size WOT RPM
1979 300 SB Twin 228 Merc 1.5:1 16 X 15 SB 4600
1979 300 SB Twin 255 Merc 1.5:1 16 X 18 SB 4200
1979 300 SB Twin 330 Merc 1.5:1 17 X 18 CP 4200
WildSpirit
New Member
Thx for the reply. I wasn't able to get any info for my year/model either. At least it'll give my mechanic and myself a ballpark figure. I still don't know what the cruise RPM should be tho...