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Old 03-23-2017, 07:01 PM   #15
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Any other company offer a package upgrade for the 8.3l?
Originally Posted by jimmy braden View Post
Banks kits are generally no longer offered.. They consisted of a updated ECM and different turbo housings, and CAC and plumbing. Normally uprated engines in the +100/150 hp range.

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Old 03-23-2017, 07:18 PM   #16
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Not that I know of. Banks does still have a web page listing the mods on a 2003.. Banks Power | PowerPack

You might contact them and ask for tech support and see if they know of any options or even competitors still in the market.

I did send them an email. I will let update this thread with any info.

2003 Scepter 40PDBB - Roadmaster rr8s - Cummins ISC350 - purch aug16
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Old 03-23-2017, 09:39 PM   #17
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Originally Posted by speedman42 View Post
Thanks guys.. I appreciate the input. told me what I thought I may hear. I will just stay in the left lane and chill out..
Make that the truck-lane/right lane, left lane is for vehicles that don't slow down for hills.
My ISC is 350hp and it slows too, doesn't overheat. A diesel engine is designed to operate at/near governed RPM without harm, some hills require manual tranny shifting to do so.
The water pump is belt-driven even though a side-radiator fan is hyd. driven, so RPM's must be kept at near the upper limit at times to increase coolant flow.

I normally don't push my MH hard on hills, easier on the drivetrain and my disposition.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Old 03-24-2017, 11:43 AM   #18
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Banks power reply

Thank you for your interest in Banks Engineering and our performance parts for the 2003 Cummins ISC Coach.

Please use the toll-free phone number below and I'll be happy to answer all questions related to correct applications, technical advice, and pricing for factory direct orders.

Beware of Unauthorized Dealers Banks Engineering will not warranty or provide Customer Service/Technical Support for products purchased from Unauthorized Dealers or Online Sites. We will provide you with authorized dealers and for your convenience Banks Engineering offers direct sales.


Chuck DeVall
Product Support and Sales
Gale Banks Engineering
Toll Free Direct (888) 857-2470 (8:00 am to 5:00 pm PST)
Fax (626) 334-1743
Visit us on the web: Banks Power | Diesel Performance and Gas Performance Products
E-mail: cdevall@bankspower.com
546 Duggan Avenue Azusa, CA 91702
2003 Scepter 40PDBB - Roadmaster rr8s - Cummins ISC350 - purch aug16
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Old 03-24-2017, 10:02 PM   #19
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You don't have to worry until you need to change down 4 more times. 3 more is ok. I dont worry about hills just go up them shifting manually and maintaining 1900-2000 on the tach.

Barry & Cindy
2008 Dutch Star 4304, Cider color
Cummins ISL 425, 2013 Passat TDI Toad
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