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Old 11-09-2019, 11:20 AM   #1
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Isc 380

Looking to buy a 2012 40 Tiffin Patheon with a ISC 380.

Has anybody had any HP problems with this engine?
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Old 11-09-2019, 11:29 AM   #2
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I had an '02 Dutch Star with the ISC 350. It was OK and even better with the Banks kit (435 hp and 1200 ft lbs).
Never any real power problems with the stock 350 though. Just the old hot rodder in me wanted more.
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Old 11-09-2019, 11:33 AM   #3
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What is the Banks KIt
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Old 11-09-2019, 02:24 PM   #4
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Banks is a after market performance company that has many HP up grades for diesel motor homes. We had one of their up grades on our 1st London Aire in 97 and made a big difference. They don't have kits for all years and different engines but if they have a up grade it will make a difference.
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Old 11-14-2019, 12:40 PM   #5
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The ISC is a great engine for medium weight coaches. I would want to know the weight of a 2012 Tiffin Phaeton? Many coach manufacturers are using smaller engines in heavy coaches to save money.
If the Cummins ISL was available, it may be a better choice.
Much of this depends on where you travel and if you plan on towing. Traveling the mountains out west in summer heat towing a car is tough without enough torque.
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Old 11-14-2019, 05:47 PM   #6
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We own a 2013 Phaeton 40qbh w/the ISC and its been great. It has enough power, and the fuel economy has been better than our last coach w/a CAT C7. There is an emission recall on some coaches, it involves replacing the SCR, not too big of a deal, took Cummins service about 1.5 hrs to replace it. Starting in 2014 the ISC was discontinued so the ISL was installed but on the Phaeton the HP and Torque remained the same at 380 HP 1050 Torque.
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Old 11-14-2019, 10:20 PM   #7
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The Cummins ISL is the same block as the ISC with a longer stroke. The ISC was discontinued for OTR use because the 6.7 output is now at the same HP as the normal (350HP) range of the ISC, and the ISL lowest HP was at the top of the ISC HP range.


The 370/380 HP ISC is the most powerful ISC Cummins built for OTR use. IMO you will be satisfied with this engine.
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Old Today, 02:21 PM   #8
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Quote:
Originally Posted by Fritzrh View Post
Looking to buy a 2012 40 Tiffin Patheon with a ISC 380.

Has anybody had any HP problems with this engine?


Iíve got the ISC 360 in my 43 ft 2010. Iíve put over 30k miles on it towing a Ford Edge. Been through Eisenhower tunnel 3 times with it. It wonít go 65 mph up that hill, but Iím not in a race to get anywhere. Iíve averaged about 7 mpg over those 30k miles. Iíve thought about more HP, but what we have gets us where we want to go.
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