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+--- Thread: Engine Speed (/showthread.php?tid=3437)
Engine Speed - Wilhelmus Schreurs - 09-15-2006 09:33
I have read a lot of the posts about engine speed for the 3208 NA, and wow, I
never realized that you would wind them up so high, 3000rpm.
What about the 3208 TA, the manual says do not let it lug lower than 1400 rpm,
but it does not say anything about the top rpm. What would it be?
Also, I will be towing a 24' trailer, and when going uphills, what is the rpm
range that I should try to maintain.
This is all with Randy's ex BB and Crit's ex trailer. I know these guys will
also give me all sorts of tips.
Thanks
Bill
84FC35SB
Terrace, B.C.
(Maiden voyage in Oct.)
---------------------------------
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[Non-text portions of this message have been removed]
Engine Speed - erniecarpet@... - 09-15-2006 10:09
Bill- the most important things to consider going up hill, is the rpm's, oil
pressure and water temps. If you know when your coach downshifts, rpm wise,
you can anticipate the downshift and manually downshift. This will keep your
rpms up- your water temp down and your oil pressure up. If the coach starts to
lug- downshift!!
Ernie Ekberg
83 PT40
Livingston, Montana
[Non-text portions of this message have been removed]
Engine Speed - davidkerryedwards - 09-15-2006 10:50
I believe standard governed rpm on the NA is 2800 and turbo 2600. I
think you'll have to change the governor to get more rpm's than those.
Kerry
82 FC 35
Denver
--- In WanderlodgeForum@yahoogroups.com, Wilhelmus Schreurs
>
> I have read a lot of the posts about engine speed for the 3208 NA,
and wow, I never realized that you would wind them up so high, 3000rpm.
> What about the 3208 TA, the manual says do not let it lug lower
than 1400 rpm, but it does not say anything about the top rpm. What
would it be?
>
> Also, I will be towing a 24' trailer, and when going uphills, what
is the rpm range that I should try to maintain.
>
> This is all with Randy's ex BB and Crit's ex trailer. I know these
guys will also give me all sorts of tips.
>
> Thanks
> Bill
> 84FC35SB
> Terrace, B.C.
> (Maiden voyage in Oct.)
>
>
> ---------------------------------
> Share your photos with the people who matter at Yahoo! Canada Photos
>
> [Non-text portions of this message have been removed]
>
Engine Speed - Henry Jay Hannigan - 09-16-2006 01:58
---Ernie:
You got any FIRES near you??
Regards,
Hank
90SP36
80FC31
In WanderlodgeForum@yahoogroups.com, erniecarpet@... wrote:
>
> Bill- the most important things to consider going up hill, is the
rpm's, oil
> pressure and water temps. If you know when your coach downshifts,
rpm wise,
> you can anticipate the downshift and manually downshift. This will
keep your
> rpms up- your water temp down and your oil pressure up. If the
coach starts to
> lug- downshift!!
>
> Ernie Ekberg
> 83 PT40
> Livingston, Montana
>
>
>
> [Non-text portions of this message have been removed]
>
Engine Speed - Jeff Miller - 09-16-2006 03:31
The 3208 drives more like a gas engine, it develops more of its power
with higher RPM.
The 3208Ta is rated at 2650rpm, max. operating rpm is 2800+/- 50rpm
(225hp & 250hp)
The 3208a and 3208ATAAC are rated at 2850rpm, max. operating rpm is
3000rpm+/- 50rpm (190/210hp and 300hp). The ZF transmissin is rated
for 3000rpm.
I prefer to run the 3208 above 2100rpm for climbing, tends to develop
more boost up there anyway. The preference to higher rpm is because
the oil pressure & flow is higher to produce more
lubrication/protection/cooling, the water flow is higher to provide
more cooling, and the transmission fluid flow is higher to produce
more internal cooling. It is also because developing power with RPM
reduces the internal forces in the engine (cylinder pressures/ring
pressures, forces on main and rod bearings, etc.) than lugging an
engine. Keep the revs up and temps down.
The 92-series DD also has a higher power curve which punishes those
who let it fall off the ball in a climb, the S-60 pulls very well at
low RPM where it is designed to run.
- Jeff Miller
in Holland, MI
--- In WanderlodgeForum@yahoogroups.com, Wilhelmus Schreurs
>
> I have read a lot of the posts about engine speed for the 3208 NA,
and wow, I never realized that you would wind them up so high,
3000rpm.
> What about the 3208 TA, the manual says do not let it lug lower
than 1400 rpm, but it does not say anything about the top rpm. What
would it be?
>
> Also, I will be towing a 24' trailer, and when going uphills,
what is the rpm range that I should try to maintain.
>
> This is all with Randy's ex BB and Crit's ex trailer. I know
these guys will also give me all sorts of tips.
>
> Thanks
> Bill
> 84FC35SB
> Terrace, B.C.
> (Maiden voyage in Oct.)
>
>
> ---------------------------------
> Share your photos with the people who matter at Yahoo! Canada Photos
>
> [Non-text portions of this message have been removed]
>
Engine Speed - Pete Masterson - 09-16-2006 05:09
The Series 60 has a maximum RPM (under power) of 2100. It is OK to go
to 2400 when decelerating. It pulls very well from 1400-1800 RPM. The
manual suggests downshifting if RPM falls below 1250-1300. Maximum HP
is available at 1800 (and remains constant to 2100).(It's a little
weird for me to work with such low RPMs, having much experience with
high-reving sports cars (in my youth) where a redline of 6400 was not
uncommon.)
The Allison 6 speed computer-controlled automatic transmission used
in the WL does a good job sticking to these values. It's rare to need
to revert to a manual mode --- only when climbing or descending from
a serious grade where you want to hold a particular gear.
Pete Masterson
aeonix1@...
'95 Bluebird Wanderlodge WBDA 42'
El Sobrante, CA
On Sep 16, 2006, at 8:31 AM, Jeff Miller wrote:
> <snip>
>
> The 92-series DD also has a higher power curve which punishes those
> who let it fall off the ball in a climb, the S-60 pulls very well at
> low RPM where it is designed to run.
>
> - Jeff Miller
> in Holland, MI
[Non-text portions of this message have been removed]
Engine Speed - Eric Johnson - 09-18-2006 00:10
Hello Bill,
On our Colorado trip this summer I found early downshifting, as suggested by
others, was
critical to preventing overheating. Since that time, I've added a manual switch
to engage
the radiator fan while the water temperature is still around 185-190 and it's
worked very
well to keep temperatures in check. We normally cruise on the flats at 2600 -
2700 RPM.
It may be obvious, but another point worth mentioning is watching your rpm on
the
downhill runs. Diesel engines aren't that great for braking and judicious use
of retarder
and brakes are necessary to keep from overspeeding the engine/drivetrain. In
our early
days, I let it get over 3,000 a few times before I realized that wasn't a good
idea.
Regards, Eric in San Antonio
84FC35SBWL2
--- In WanderlodgeForum@yahoogroups.com, Wilhelmus Schreurs
wrote:
>
> I have read a lot of the posts about engine speed for the 3208 NA, and wow, I
never
realized that you would wind them up so high, 3000rpm.
> What about the 3208 TA, the manual says do not let it lug lower than 1400
rpm, but it
does not say anything about the top rpm. What would it be?
>
> Also, I will be towing a 24' trailer, and when going uphills, what is the
rpm range that I
should try to maintain.
>
> This is all with Randy's ex BB and Crit's ex trailer. I know these guys will
also give me
all sorts of tips.
>
> Thanks
> Bill
> 84FC35SB
> Terrace, B.C.
> (Maiden voyage in Oct.)
>
>
> ---------------------------------
> Share your photos with the people who matter at Yahoo! Canada Photos
>
> [Non-text portions of this message have been removed]
>