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11-03-2014, 08:52 PM
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#1
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Junior Member
Join Date: Dec 2010
Posts: 19
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Turbo Boost What is the Maximum Boost that a 5.9, 275HP
what is the maximum boost supposed to be?????
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11-03-2014, 11:21 PM
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#2
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Senior Member
Fleetwood Owners Club
Join Date: May 2009
Posts: 182
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The engine in my 97 Discovery is a so-called 98.5, 24 valve, 5.9L, ISB.
Max I see on VMSpc is 23.2.
__________________
97 Discovery 36RS
00 Subaru
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11-04-2014, 06:21 AM
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#3
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2009
Posts: 4,031
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Around 23 PSI for the OEM, at one time Banks had a kit that came with a bigger turbo that does 33-34 PSI. They no longer have or sell that kit.
I have one but the Ottominder box went out. And is no longer available. :(
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99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
Fulltime Since "99"
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11-04-2014, 07:36 AM
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#4
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Senior Member
Winnebago Owners Club
Join Date: Feb 2008
Posts: 728
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On my 02, 5.9, 275HP it is approximately 23 lbs when demand is heavy.
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11-19-2014, 04:23 PM
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#5
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Junior Member
Join Date: Dec 2010
Posts: 19
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thanks guys ,,i am 19" max ,,i will try to adjust it
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11-19-2014, 09:45 PM
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#6
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Senior Member
Join Date: May 2011
Posts: 459
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The boost on my 5.9 with the Banks system will touch 32-34 lbs. of boost from the 5-6 shift. If it is in the economy mode, 25-28.
__________________
'05 Monaco Beaver 400 Quad SLD 400hp C-9 Caterpillar
2014 Grand Cherokee, Limited, diesel
Katie-Doberman Pinscher, Tigger, yellow Tabbycat.
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11-19-2014, 09:52 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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Quote:
Originally Posted by Triker56
Around 23 PSI for the OEM, at one time Banks had a kit that came with a bigger turbo that does 33-34 PSI. They no longer have or sell that kit.
I have one but the Ottominder box went out. And is no longer available. :(
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I hope our Ottomind never gives out or we'll be in the same boat and I'll really miss the added power even with the bigger turbo left in place.
__________________
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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11-19-2014, 09:53 PM
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#8
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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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Quote:
Originally Posted by GreaTOne65
The boost on my 5.9 with the Banks system will touch 32-34 lbs. of boost from the 5-6 shift. If it is in the economy mode, 25-28.
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On our ISC with the Banks kit the boost always goes up to 34-35 PSI even when in economy mode.
__________________
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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11-20-2014, 10:08 PM
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#9
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Senior Member
Join Date: May 2011
Posts: 459
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That's very interesting, Mr.D. I was very cognizant of the boost this year, because of the threads I have read on IRV2. I have the Banks, pyrometer, and boost gauge, plus the scan-gauge. The scan-gauge doesn't show the same amount of boost the Banks gauge does, it is lower, at any given time, by about 3-4 lbs. I to am worried about my Ottomind losing it's mind. I wonder if another type of horsepower chip will work?
__________________
'05 Monaco Beaver 400 Quad SLD 400hp C-9 Caterpillar
2014 Grand Cherokee, Limited, diesel
Katie-Doberman Pinscher, Tigger, yellow Tabbycat.
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11-30-2014, 07:43 PM
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#10
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Junior Member
Join Date: Nov 2014
Posts: 5
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My '99 Cummins boost max is 19. All stock except Diablo sports Power Puck. EGT is 1200 at 19 psi boost, so what is your EGT at 23?
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OakViewJeff
2000 Alpenlite 29 RL, 1999 Dodge 2500 RAM
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11-30-2014, 07:47 PM
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#11
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Junior Member
Join Date: Nov 2014
Posts: 5
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Sounds right for a 98.5 Cummins, watch your exhaust manifold temperature, before the turbo, should not exceed 1300 F
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OakViewJeff
2000 Alpenlite 29 RL, 1999 Dodge 2500 RAM
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