Coming home

The Main Sand Box for bertram31.com

Moderators: CaptPatrick, mike ohlstein, Bruce

Post Reply
CHolgerson
Senior Member
Posts: 173
Joined: Aug 3rd, '06, 16:39

Coming home

Post by CHolgerson »

CHolgerson
Senior Member
Posts: 173
Joined: Aug 3rd, '06, 16:39

Re: Coming home

Post by CHolgerson »

This is most likely cruising between 22 to 24 knots. Does the running angle/attitude look right?
Ironworker
Posts: 747
Joined: Jul 22nd, '17, 13:59

Re: Coming home

Post by Ironworker »

Looks very heavy to me.
Rick Ott
Carolina Reaper
Hull # Don't have a clue
Tony Meola
Senior Member
Posts: 7036
Joined: Jun 29th, '06, 21:24
Location: Hillsdale, New Jersey
Contact:

Re: Coming home

Post by Tony Meola »

Chris

That is about where my FBC sits at that speed.
1975 FBC BERG1467-315
CHolgerson
Senior Member
Posts: 173
Joined: Aug 3rd, '06, 16:39

Re: Coming home

Post by CHolgerson »

The boat feels and rides heavy. It is getting 30 knots at WOT with 300hp cummins. 24 knots at 2400 rpm. Depending on how it is loaded. 4 blade dqx wheels.
Tony Meola
Senior Member
Posts: 7036
Joined: Jun 29th, '06, 21:24
Location: Hillsdale, New Jersey
Contact:

Re: Coming home

Post by Tony Meola »

I anm just shy of 30 knots at WOT with the 270's. I think you need to check the size on those wheels. What transmission reduction are you running?

You should be over 30 knots at the top end. I am at 24 knots also at 2400 RPM.
1975 FBC BERG1467-315
User avatar
scenarioL113
Senior Member
Posts: 690
Joined: May 31st, '08, 09:00
Location: Massapequa Park, NY

Re: Coming home

Post by scenarioL113 »

Maybe he is propped for 250hp? Are those Cummins CPL970? They should be underpropped if they are. What is your WOT RPM?
1971 28 Bertram
4BT Cummins

Frank

9-11-01 NEVER FORGET
CHolgerson
Senior Member
Posts: 173
Joined: Aug 3rd, '06, 16:39

Re: Coming home

Post by CHolgerson »

They are the older model cummins and right now they are propped to reach 3000 rpm at WOT.
Tony Meola
Senior Member
Posts: 7036
Joined: Jun 29th, '06, 21:24
Location: Hillsdale, New Jersey
Contact:

Re: Coming home

Post by Tony Meola »

I am turning 2650 at side open.
1975 FBC BERG1467-315
Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 91 guests