31 TE with single Cummins

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Jforesta
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Sat Jun 08, 2019 4:32 pm

Anyone out there with a 31 with single Cummins that can share performance?
SeaQuel
1997 31TE
3126 Cat
Formally
Abbastanza
2000 Albin 28 TE
Joe F

irishwake
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Sun Jun 09, 2019 7:53 am

Cruise at 19-20 mph. Average 6 gals per hr.

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RobS
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Sun Jun 09, 2019 10:52 am

Joe,

Is your CAT the 420hp T/A ?
Last edited by RobS on Tue Jun 11, 2019 6:04 am, edited 1 time in total.
Rob S.
"TENACIOUS"
1974 Chris Craft 36' Commander Tournament
Cummins 6BTA 330B's

(Former Owner)
"TOY-RIFIC" 2000 28TE, 6LP, Hull 408

Luck is the residue of good design.

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Pitou
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Sun Jun 09, 2019 11:27 am

Cruise with how my 31TE is loaded with a 24 X 24 prop and a single Cummins QSC 8.3 500hp electronic engine is 13.5 to 18 kts at 1 gallon per knot no matter how you slice it. Top speed is 23 knots and still at 1 gallon per knot.

Fuel burn per knot drops significantly when at troll or up to about 10 knots. Striper troll of 3 +/- knots is .75 to 1 gph per hour Cocktail cruise of 6 to 7 knots is in the 3.5 +/- gph range. Averaged out over the season about 6+ gallons per hour.
Last edited by Pitou on Tue Jun 11, 2019 8:33 am, edited 1 time in total.
kevinS
"drinking rum before 10AM makes you a Pirate, not an Alcoholic"

~ 2006 31TE / Hull# 221
Cummins QSC 8.3 / 500 hp

Former boat ~
~ 2002 / 28TE / Hull# 614
Cummins 6BTA 370 hp / Alaskan Bulkhead
April / '04 ~ May / '13

Jforesta
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Mon Jun 10, 2019 5:59 pm

Thanks Kevin
I have a 3126 , 420 hp Cat
I cruise at 2400rpm 15 16 knots
I burn about 10 to 12 gph
My top end is 2750
Not sure of prop size. I am going to check the accuracy of my tac

Curious of single Cummins
SeaQuel
1997 31TE
3126 Cat
Formally
Abbastanza
2000 Albin 28 TE
Joe F

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addon323
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Tue Jun 11, 2019 7:09 am

I have a 2000 31 TE with a single Cummins 6cta8.3m3 450hp diamond.

When fully loaded, I cruise at 2400 rpms and around 16 knots.

WOT is 2650 rpms and around 18-19 knots.

When at cruise I think I am burning around 16- 18 gph.

My prop size is 24-22 with a 3 Cup.

Hope that helps. If anyone has advise on how to increase speed or performance, I am all ears.

Thank you
Family Ties
2000 31' Albin w/ Single Cummins 450 HP

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Sisu22
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Thu Jun 13, 2019 1:03 pm

irishwake wrote:
Sun Jun 09, 2019 7:53 am
Cruise at 19-20 mph. Average 6 gals per hr.
That seems like it would be remarkable efficiency. I'm burning about 11 GPH at 16 knots in my 28.
1994 TE 28' w/ Cummins 250

irishwake
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Fri Jun 14, 2019 9:17 am

Note, I said average! If I was at home I could post the the stats on this post. If I ran at cruise speed all the time It would probably be about 12-14 gph. When I can get to my computer I will post my records for the last 4 years.

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Sisu22
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Sat Jun 15, 2019 8:56 pm

HA! Ok I was getting really jealous.
1994 TE 28' w/ Cummins 250

larryrotta
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Home Port: suttons bay, MI

Sat Jun 15, 2019 10:05 pm

OK, Georgian Bay has finally warmed enough to allow the completion of the sale of Ruddy duck to
yours truly. Just completed the 350 statute mile cruise from there to Suttons Bay, Mi. We have the Cummins 370B and cruise at 2400 rpm yields 15-16 mph. WOT is 3000 rpms. Seems to be about 10 gals per hour. Hope to see more precise measurements soon and hope to find more 28 TEs in NW MI.
Very strong boat. In some 55 years of boating I've never owned a boat to exceed 7 knots--this is a whole new kind of experience for me, BTW I have a good condition Genco winter cover with comlete framing and 4 jackstands for $900.

Larry
2001 TE 28
Cummins 370B
formerly Ruddy Duck

irishwake
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Thu Jun 20, 2019 10:57 am

Date YR Start End Hrs Gal $ GPH Trip Fuel Dock Price per
Gal Mi Per Gal
20-Feb 2013 495 495 140 $615.99 1 St fill up $ 4.39
30-Jul 2013 495 520 25 155 $698.78 6.2 Local cruising Baha Mar $ 4.35
24-May 2014 520 548 28 134 $567.04 4.7 Local cruising Baha Mar $ 4.22
8-Jul 2014 548 571 159 $682.85 6.9 Crab Isl,2x McCray,5 hrs fishing,1xquietwater Baha Mar $ 4.28 Reset milage from purchase( 679)
1-Apr 2015 571 595 24 160 $524.28 6.6 Local cruising Baha Mar $ 3.27 Milage 192 (1.28 gal per mile)
19-Jul 2015 595 629 34 161 $516.00 4.7 3x fishing, fort Mccray,spanish ship,blues BahaMar $ 3.20 241 mi, 1.49 mi per gal
7-Apr 2016 629 653 24 169 $409.27 7 3x fishing, fort Mccray cruising Santa Rosa YC $ 2.41 191 mi, 1.13 mi per gal
4-Nov 2016 653 681 28 160 $390.03 5.7 3x fishing Blues, cruising Santa Rosa YC $ 2.43 214 mi, 1.33 mi per gal
2-Jul 2017 681 710 29 185 $458.70 6.3 3xfishing,cruising Santa Tosa YC $ 2.47 220 mi, 1.18 mi per gal
19-May 2018 710 739 29 162 $564.18 5.5 cruising Santa Rosa YC $ 3.48 250 mi, 1.54 mi per gal
17-Apr 2019 739 773 34 222 $696.49 6.5 3 fishing, cruising Santa Rosa YC $ 3.49 298 mi, 1.34 mi per gal

This is my fuel chart I referred to. It doesn't transfer well from the other program.

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