Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-22-2014, 07:47 AM   #323
rjp
Junior Member
 
rjp's Avatar
 
Alpine Owners Club
Join Date: Jul 2011
Location: La Conner, Washington
Posts: 19
425hp ISL
I thought the 8.9 ISL's were 400hp. Did you modify to obtain 425hp?
__________________

__________________
rjp is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-22-2014, 11:16 PM   #324
Member
 
robbyray's Avatar
 
Alpine Owners Club
Join Date: Aug 2010
Location: Richland, WA
Posts: 53
rjp: Cummins NW, who does all of our service, verified that it was the 425 hp ISL (see below). I bought it used and it came with whatever upgraded engine was available at the time. Sorry I can't be more specific. I'll enquire of the Cummins NW team next time I'm in Yakima and let you know how or why they have titled it at 425 hp. Here are the excerpts from the Cummins brochure:

Cummins ISL 425 is the ideal engine for larger luxury
motorhomes. It has the power to accelerate at any speed
and 1200 lb-ft of torque to let you quickly climb the steep
grades even when towing. The ISL also has a very stout
engine brake which provides greater peace of mind on
those steep downhill runs. Plus, the extra braking capacity
reduces wear on your service brakes, lengthening service
intervals and saving you money. And with 20,000-mile
(32,000 km) oil change intervals, the ISL 425 makes your
travel budget go further.

The ISL was developed to optimize every aspect of the
engine’s operation, utilizing Cummins comprehensive
in-house design approach to every engine system from the
air intake to the exhaust system. Integration of Cummins
advanced electronic controls, VG Turbo, high-pressure fuel
system, combustion technology and exhaust aftertreatment
is how the ISL delivers on the performance and value
expectations of the motorhome owner. And the ISL does
it while being certified and compliant to the toughest
standards, the 2007 EPA emissions regulations.
FOR MOTORHOMES.
Specifications
ADVERTISED HORSEPOWER 425 HP 317 KW
PEAK TORQUE 1200 LB-FT 1627 N•M
GOVERNED SPEED 2200 RPM
CLUTCH ENGAGEMENT TORQUE 550 LB-FT 746 N•M
NUMBER OF CYLINDERS 6
OIL SYSTEM CAPACITY 7.3 U.S. GALLONS 27.6 LITERS
SYSTEM WEIGHT 1,685 LB 764 KG
ENGINE (DRY) 1,635 LB 742 KG
AFTERTREATMENT* 50 LB 23 KG
__________________

__________________
Ray & Marilyn Robinson
2008 Alpine FDDS 36'
Richland WA
robbyray is offline   Reply With Quote
Old 07-23-2014, 05:34 AM   #325
Senior Member
 
Alpine Owners Club
Join Date: May 2008
Location: Ocala, FL
Posts: 227
Cummins upgraded the engine to 425 HP when the 2007 emission requirements were added.
__________________
Jim & Sandy
2008 34' FDDS Alpine
Limited SE
JLMunsil is offline   Reply With Quote
Old 07-23-2014, 08:07 PM   #326
Member
 
Alpine Owners Club
Join Date: May 2011
Posts: 73
Our 2003 FDTS40 has a ISL redhead "400HP" according to all records.
The previous owner told me that Allison was close to the Torque limit and that he didn't
want to have the engine upgraded to 450 & 0ver torque the trans.???
The 425 noted 1200ft-lbs is right at the limit I think.


The 400 performs up to my expectations, though my 2004 Duramax Pickup set up to 400hp(?) pulled our 36.5' fifth wheel faster up the local grades.Of course the truck/trailer weighed approximately 10,000 lbs less that the coach.

Did the 400 to 425 make a difference in hill power or fuel mileage?
My coach runs around 10 mpg @ 55mph/level. 65-70 drops to the high 7's to barely over 8 mpg. on the level
BUT I live in the Ca. in the middle of the Sierras surrounded by beautiful dry mountains and I don't worry about +/- 1 mpg.

Sally and Ray Jeske
Mariposa, Ca. 95338

PS: We are 45 mins from Yosemite Nat. Park and have a full hookup if anyone wants to a really GREAT Park. Spring Time has much better falls.
__________________
Trainstop2 is offline   Reply With Quote
Old 07-24-2014, 03:40 PM   #327
Member
 
robbyray's Avatar
 
Alpine Owners Club
Join Date: Aug 2010
Location: Richland, WA
Posts: 53
Trainstop2: Definitely more pep in the 425 hp vs our previous 325 hp, but I don't have any comparison driving relative to an ISL 400 hp. The 425 easily handles places up and down like Emigrant Hill, aka Cabbage Hill (Blue Mtns - I-84 in eastern OR between Pendleton and La Grande) with its seven-mile downgrade, 35 miles west of La Grande, Oregon -- 2,000 feet of elevation change in six miles and twists through double hair pin turns at a 6-percent grade. These are probably small grades relative to your typical terrain. Relative to mileage, while we have excellent history on diesel purchases / fillups, with HydroHot and Onan generator, both also diesel users which we use a lot, I can't give you an average mpg that I'm willing to bet the farm on. My best guess is 8 to 9 mpg driving at about 65 to 60 mph, respectively, and I tend to see more fluctuation (decreased mpg's) due to headwinds vs climbing hills.
__________________
Ray & Marilyn Robinson
2008 Alpine FDDS 36'
Richland WA
robbyray is offline   Reply With Quote
Old 07-31-2014, 12:59 PM   #328
Junior Member
 
Alpine Owners Club
Join Date: Jan 2014
Posts: 4
40' 2006 400hp ISL- Limited- #75569 purchased Dec. 2013 in Thousand Oaks, CA. No history avail.
__________________
Pamdenco is offline   Reply With Quote
Old 10-04-2014, 09:24 PM   #329
Member
 
a johnson's Avatar
 
Join Date: Oct 2011
Location: Martinsville, IN
Posts: 89
new owner of '02 40' 370hp Alpine Coach #74553
not much history, but trying to get some.
__________________
Aaron Johnson
2002 Alpine Coach 74553
40FDTS
a johnson is offline   Reply With Quote
Old 10-05-2014, 11:39 AM   #330
rjp
Junior Member
 
rjp's Avatar
 
Alpine Owners Club
Join Date: Jul 2011
Location: La Conner, Washington
Posts: 19
Is the list being updated?
I thought I registered in April but we don't appear on the list.
Rich & Judy Petteys
FDTS 40 75527
__________________
rjp is offline   Reply With Quote
Old 10-08-2014, 12:59 PM   #331
Junior Member
 
Alpine Owners Club
Join Date: Oct 2014
Posts: 6
New owner and New member to 2002 36fd #74544, will sit in our Rv garage when not in use. We have always owned pace-arrows (gas) This is our first pusher and
Can't wait to take it out on trip
Tucson, Arizona
__________________
dlmoo1 is offline   Reply With Quote
Old 10-24-2014, 03:27 PM   #332
Junior Member
 
Join Date: Sep 2014
Posts: 2
2004 alpine 36 MDDS # 75070 400hp Randy and Cassie Grissom Belle Plaine ks. Third owners
__________________
rgrissom is offline   Reply With Quote
Old 11-05-2014, 02:14 PM   #333
Junior Member
 
Join Date: Mar 2012
Location: Idyllwild, CA
Posts: 1
Good idea. We are the second owners of serial # 75561. We purchased our 2006 36MDDS Alpine in May of 2012 from OldForester
__________________
DGuhse is offline   Reply With Quote
Old 01-06-2015, 10:35 PM   #334
Senior Member
 
ralph0808's Avatar
 
Join Date: Mar 2010
Location: Eucha,OK
Posts: 144
Ralph & Debbie
2005 FDQS 40
# 75368
Purchased 01/06/15



Ralph
__________________
2005 Alpine 40 FDQS, 2011 Chevy Equniox, Ready Brute Elite Towbar, Ralph & Debbie with Sassie & Shelby
ralph0808 is offline   Reply With Quote
Old 01-07-2015, 08:28 AM   #335
Member
 
Alpine Owners Club
Join Date: May 2014
Posts: 91
Welcome Ralph and Debbie - what part of Oklahoma is Eucha in?
__________________
Tim and Delilah
2004 Alpine Coach, 400 Cummins ISL, 40'
Weatherford Texas
Jeeper64060 is offline   Reply With Quote
Old 01-07-2015, 07:38 PM   #336
Senior Member
 
ralph0808's Avatar
 
Join Date: Mar 2010
Location: Eucha,OK
Posts: 144
Northeast, just a few miles from the Grand Lake of Cherokee's. Near Disney and Langley Oklahoma




Ralph
__________________

__________________
2005 Alpine 40 FDQS, 2011 Chevy Equniox, Ready Brute Elite Towbar, Ralph & Debbie with Sassie & Shelby
ralph0808 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hard to find Alpine parts Dave and Jaime Alpine Coach Owner's Forum 21 03-05-2015 08:31 PM
Buy an Alpine - Get a wife! Oregon Coyote Alpine Coach Owner's Forum 14 11-02-2009 05:06 PM
Newport, OR-ACA National Summer Rally...All Alpine Coach Owners Welcome Alpine Rallies Alpine Coach Owner's Forum 1 05-15-2007 06:56 PM
Honked off at Alpine rockcj Alpine Coach Owner's Forum 2 06-03-2005 09:43 PM
Alpine Ordering Experience - worked out OK Audrey & John Alpine Coach Owner's Forum 5 01-25-2005 01:52 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.