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03-18-2017, 03:56 PM
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#1
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Junior Member
Join Date: Apr 2016
Location: Tucson,AZ
Posts: 8
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MP-8 programmer on a Cat 3126E
I'm interested in increasing the horsepower and torque on my coach. I have a 2002 Itasca Horizon 34HD with the Cat 3126E motor. I tow a 24ft enclosed trailer that weighs about 7600 lbs loaded and just need more power. I've done a search on this site and have read most of the threads on the MP-8. Reviews seem to be good. I live in Tucson and was wondering if there is anyone local that can install one for me?
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03-18-2017, 04:07 PM
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#2
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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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Do they even make one for the 3126? I thought they were for Cummins only.
__________________
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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03-18-2017, 04:17 PM
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#3
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Senior Member
Join Date: Dec 2011
Location: Corinth, MS
Posts: 485
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You only need help installing if you want the control switch up front. I installed one in our RV last year and really noticed Hill pulling power, I added and recommend having a Egt gauge.
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Mike & Becky
2005 Holiday Rambler Navigator 45PBQ
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03-18-2017, 06:08 PM
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#4
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Senior Member
Join Date: Jul 2015
Location: Athol, Id
Posts: 126
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Your Cat is not electronically controlled. MP-8
Will work on C-7 etc but not mechanically controlled engine
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2008 Dutch Star 4035
Retired IBEW Local 595
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03-18-2017, 06:20 PM
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#5
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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Quote:
Originally Posted by Dutchstar08
Your Cat is not electronically controlled. MP-8
Will work on C-7 etc but not mechanically controlled engine
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Wrong
3126B and newer Cat engines are electronically controlled
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Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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03-18-2017, 06:30 PM
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#6
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Senior Member
Monaco Owners Club
Join Date: Jan 2008
Location: Olympia, Wa
Posts: 2,772
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Had this installed on my 2000 3126. And if memory serve on the dyno go 394 HP and 1000# plus torque. Install is ano brained. Disconnect two wires and set NP8 in be tween. Order 40' control dial or mount it near motor,I mounted it under bed. If you get an error message after install back of on how much power and it will go away,some got the error some did not. Gave me a bunch more power and one mile to the gallon.
LEN
__________________
2004 Clss C 31' Winnebgo
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03-19-2017, 07:25 AM
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#7
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Junior Member
Join Date: Apr 2016
Location: Tucson,AZ
Posts: 8
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Thanks for all of the replies. I have read where others say it is easy to install also. I'm a pretty good do it yourself kind of guy, but when it comes to diesel motors...... I don't want to screw anything up. Are the instructions very detailed?
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03-19-2017, 07:44 AM
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#8
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Dec 2009
Posts: 761
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Quote:
Originally Posted by Dune Doc
Thanks for all of the replies. I have read where others say it is easy to install also. I'm a pretty good do it yourself kind of guy, but when it comes to diesel motors...... I don't want to screw anything up. Are the instructions very detailed?
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I found this on a search, http://www.irv2.com/forums/f124/mp-8...ics-95245.html if I am reading your post right this should help on install
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03-19-2017, 06:38 PM
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#9
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Junior Member
Join Date: Apr 2016
Location: Tucson,AZ
Posts: 8
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Thank you! I saw that post with photos too. I can't make heads or tails out of those photos. Lol
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03-19-2017, 07:46 PM
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#10
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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http://www.liberatedmanuals.com/TM-9-2320-312-24-2.pdf
Here is a link for your engine. There is very little difference in the
3126b/e/ C7 engines.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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