351 Windsor Motors QUESTION

30'Express1975 · Post by **30'Express1975** » Thu Mar 24, 2011 1:45 pm

Hey everyone. Its been very busy trying to get all stuff together for the spring. I am wondering what is a good RPM for me. 30' express bridge with twin 351s. What RPM should I be cruising at? Thanks for the help. Everyone on this site(for the most part) seems very helpful, Im thankful.

jddens · Post by **jddens** » Thu Mar 24, 2011 2:18 pm

I have a 30' Sea Raider with twin 350's. I don't like to cruise at much more than 3200rpm....on my boat 3200rpm gives me 18-20 knots....that being said, at 3200rpm my fuel consumption is crazy so I often go slow and easy at around 1200rpm and 8-10 knots.............John

rossjo · Post by **rossjo** » Thu Mar 24, 2011 2:23 pm

Cruising at Hull Speed (8-10 knots) at 900-1,000 RPM or so is the most economical.

Planing @ 2800 is great if it will do it. Some, like JDDENS 30' Sea Raider might take 3200 RPM to plan, but fuel consumption goes way up.

prowlersfish · Post by **prowlersfish** » Thu Mar 24, 2011 5:35 pm

3000 rpm is a good rpm I had a few 351 fords and 302s and 3000 seemed to be the sweet spot