On Thu, 6/25/15, Danny and Yvonne SIMMS simms@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Repower
To: "amelyachtowners@..." <amelyachtowners@...>
Date: Thursday, June 25, 2015, 9:16 PM


 









Hi,
I believe
the rated full revs under load for the TMD22 is
2800rpm. RegardsDannySM 299
Ocean Pearl
 
From: "Alexandre
Uster von Baar uster@... [amelyachtowners]"
<amelyachtowners@...>

To:
amelyachtowners@...
Sent: Friday, 26 June
2015 11:14 AM
Subject: Re: [Amel
Yacht Owners] Repower


 









Hallo
Hanspeter,



I have only own my SM2K since 2012, so my experience is
limited.



I have the Volvo TMD 22 P (same as Perkins M80T) which is
rated for 78HP at 4500 RPM



Until 2 months ago, I was only able to reach 2100 to 2200
rpm (which gives 50 HP).

If you are not familiar with SM not able to reach high RPM,
search post on possible oversize propeller for the SM (at
least for the ones with the Volvo).



Earlier this year I had the propeller rebuild, I can reach
2500 rpm (which is 56 HP).

Note that the maximum torque is at 2500 rpm.



Mostly I motor at 1600 rpm, which gives me 5 knots, and use
less than 3.5 liter (less than 1 gallon) per hour.

Sometime I motor at 1800 rpm and I (think I) obtain 7 knots.


Every 10 hours, I increase the throttle to its max 2500 rpm
then reduce to 2400 rpm for a few minutes to clean
exhaust/turbo.

Personally I wish (for a sailing vessel) it was normally
aspirated, as I had the turbo rebuilt in 2012 then changed
in 2015.



If you want, I can post the TMD22P data.



Sincerely, Alexandre

SM2K #289 NIKIMAT

Grand Bahama, Bahamas.



--------------------------------------------

On Thu, 6/25/15, 'hanspeter.baettig@...'
hanspeter.baettig@bluemail..ch [amelyachtowners]
<amelyachtowners@...> wrote:



Subject: Re: [Amel Yacht Owners] Repower

To: "amelyachtowners@..."
<amelyachtowners@...>

Date: Thursday, June 25, 2015, 5:44 PM





 



















Question to all SM ownersWhats

the different between 80 hp and 110 hpMax Speed

for SM is ca 8.5 knIndependent how much power,

the power on the Prop is Important I have this

speed with clean  boat/Propeller with the Perkins 80 hp

Turbo (1990, 3000 h)HanspeterSM 16

Tamango 2Göcek, Tutkey



Von meinem iPhone gesendet

Am 25.06.2015 um 18:18 schrieb "Germain

Jean-Pierre jgermain@...

[amelyachtowners]"
<amelyachtowners@...>:

































 













Wise choice Steve..

JPG
On

25 Jun 2015, at 17:00, flyboyscd@...

[amelyachtowners]
<amelyachtowners@...>

wrote:

































 













Thanks for the info Chris. It looks like 80 hp is

the way to go on our older boats due to the Cdrive

issues.



Regards,

Steve and Liz

Aloha SM72







































































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