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06-22-2017, 03:10 PM
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#1
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Senior Member
Join Date: Oct 2014
Posts: 101
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What's the difference between an ISC 330 & 350?
???
Thanks,
Don
__________________
'08 Newmar Ventana 3960
Spartan Mountain Master
2004 GMC Canyon Towed
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06-22-2017, 04:00 PM
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#2
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Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: May 2015
Posts: 245
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I think the only thing that sets these engines apart is the Horsepower rating. Everything else from the block to the fuel pump is the same. A 330 can be turned up to 350. I'm also pretty sure they both put out the same amount of torque 1050#
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2004 Travel Supreme DS04
2014 Jeep Grand Cherokee Summit 
2002 Newmar DSDP 4095 Cummins ISC 350
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06-22-2017, 04:05 PM
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#3
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Senior Member
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,636
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the only difference is 20 horse power and maybe 30 ft. lbs. of torque.
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2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
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06-22-2017, 05:24 PM
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#4
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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350 - 330 = 20. A bit of tuning.
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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06-24-2017, 04:00 PM
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#5
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Senior Member
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 5,662
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And the ISC paired with the Allison MH3000 transmission, and in an appropriate weight RV - is a well thought of combination  !
The only reason to possibly look for a coach with the slightly bigger brother to the ISC in the ISL - is that some ISL's had 2 Stage Jake Compression Brake Assist available. And a tad more torque and HP too...
But if a coach with the ISC came along that met our needs well, and was in good condition - I'd sure have no problem running down the road with an ISC pushing me along !
Best,
Smitty
__________________
07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
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06-24-2017, 04:37 PM
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#6
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Senior Member
Join Date: Oct 2014
Posts: 101
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Quote:
Originally Posted by Smitty77
And the ISC paired with the Allison MH3000 transmission, and in an appropriate weight RV - is a well thought of combination !
The only reason to possibly look for a coach with the slightly bigger brother to the ISC in the ISL - is that some ISL's had 2 Stage Jake Compression Brake Assist available. And a tad more torque and HP too...
But if a coach with the ISC came along that met our needs well, and was in good condition - I'd sure have no problem running down the road with an ISC pushing me along !
Best,
Smitty |
Thanks for that answer...We have a 330 w/ MH 3000 and I've driven about 13k in it and so far very happy.
Cheers,
Don
__________________
'08 Newmar Ventana 3960
Spartan Mountain Master
2004 GMC Canyon Towed
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06-27-2017, 12:35 PM
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#7
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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ISC 330 has 330 HP and 950 ft lbs torque
ISC 350 has 350 HP and 1050 ft lbs torque.
Banks used to have charts showing the hp and torque curves. They also say there's more to uprating the 330 to 350 than just programming, even adding the Banks kit to the older 330's didn't bring them up to the 350 with the Banks kit.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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07-02-2017, 08:41 PM
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#8
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Senior Member
Tiffin Owners Club
Join Date: Aug 2016
Location: Bastrop Texas
Posts: 1,343
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I have heard that some Cummins engines had crank shaft problems Any comments would be appreciated. Richard
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2000 Allegro Bus 35R 3126 Cat 300 Allison 3060MD 6 speed
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07-02-2017, 09:04 PM
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#9
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Senior Member
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 5,662
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Quote:
Originally Posted by Rkesselus
I have heard that some Cummins engines had crank shaft problems Any comments would be appreciated. Richard
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Probably thew wrist pins is what you've heard about. If the following link does not get you to the Sticky. Well then look at the Cummins Sticky that has wrist pins in the heading ! Very narrow, in the overall scheme of Cummins ISC and ISL volume of engines, potential impact range...
http://www.irv2.com/forums/f123/isl-...ge-180891.html
Best,
Smitty
__________________
07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
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