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DCX's 2.5v o2 setup
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stl_hemi Offline
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Post: #1
DCX's 2.5v o2 setup
This is what I've learned sofar about this.
Both front and rear o2's need to have efie's on.
Both need to be within 25mv's of the front or rear or you set codes. I tried adding more than 50mv's to the rears and I set codes on the front's.
To get that majic 50% increase I had to run 5-6lpm.
Start out on the efie's was 100mv. Added 25mv's everyother day till I hit ruffly 200mv's. But I was watching my wideband setup, EGT's and my LT fuel trims while doing so to make sure I could get as close to 0%LT fuel trim as possible.

Due to the midwest weather (f'ing cold everyday) I've had to pull my dry cell's. I can keep them from freezing at nite with atv oil heater's but once I'm at work on the job site I have no way to keep the cell's warm unless I run a extension cord to my heater's. And that got old real fast. So untill March the system is offline.

I've been working with hygear alot on getting his setup performing topnotch as well as learing from him as to what works and doesn't. Shy
Must be nice to have 2 seasons only. Spring and Summer.
So untill warmer weather I'm going to have to suffer along with 13mpg hwy from my pig on this crappy winter blend fuel. But at $1.20 a gallon right now I ain't suffing very hard. Smile

O BTW hygear those gasket's you had Tampa rubber make for me are so damn kewl. Man I'm impressed.

Paul
2004 Dodge Ram 2500 QC Hemi Off Road
5" of lift with 35" Super Swamper SSR's

Trucks forsale
Buying a 2010 Ram 3500 Mega CTD Smile
(This post was last modified: 12-31-2008 07:11 PM by stl_hemi.)
12-31-2008 07:09 PM
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alpha-dog Offline
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Post: #2
RE: DCX's 2.5v o2 setup
(12-31-2008 07:09 PM)stl_hemi Wrote:  This is what I've learned sofar about this.
Both front and rear o2's need to have efie's on.
Both need to be within 25mv's of the front or rear or you set codes. I tried adding more than 50mv's to the rears and I set codes on the front's.
To get that majic 50% increase I had to run 5-6lpm.
Start out on the efie's was 100mv. Added 25mv's everyother day till I hit ruffly 200mv's. But I was watching my wideband setup, EGT's and my LT fuel trims while doing so to make sure I could get as close to 0%LT fuel trim as possible.

Due to the midwest weather (f'ing cold everyday) I've had to pull my dry cell's. I can keep them from freezing at nite with atv oil heater's but once I'm at work on the job site I have no way to keep the cell's warm unless I run a extension cord to my heater's. And that got old real fast. So untill March the system is offline.

I've been working with hygear alot on getting his setup performing topnotch as well as learing from him as to what works and doesn't. Shy
Must be nice to have 2 seasons only. Spring and Summer.
So untill warmer weather I'm going to have to suffer along with 13mpg hwy from my pig on this crappy winter blend fuel. But at $1.20 a gallon right now I ain't suffing very hard. Smile

O BTW hygear those gasket's you had Tampa rubber make for me are so damn kewl. Man I'm impressed.

Getting 5~6Lpm must be hard. What is your set-up.
01-01-2009 04:33 PM
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stl_hemi Offline
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Post: #3
RE: DCX's 2.5v o2 setup
3 mini drycells. 4" each. I'm adding a 4th come spring. Building it in the spare change left in my center consol each week. Smile

Paul
2004 Dodge Ram 2500 QC Hemi Off Road
5" of lift with 35" Super Swamper SSR's

Trucks forsale
Buying a 2010 Ram 3500 Mega CTD Smile
01-01-2009 06:34 PM
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mrbillr Offline
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Post: #4
RE: DCX's 2.5v o2 setup
(01-01-2009 06:34 PM)stl_hemi Wrote:  3 mini drycells. 4" each. I'm adding a 4th come spring. Building it in the spare change left in my center consol each week. Smile

5~6Lpm
what are your total amps? A nice round number for a good cell is roughly 10 amps per liter HHO. 5 to 6 liters would equate to 50 - 60 amps. That is quite a load.

MrBill
2008 f250 XLT 6.4 diesel 2x4 automatic extended cab
01-01-2009 08:50 PM
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hydrotinkerer Offline
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Post: #5
RE: DCX's 2.5v o2 setup
(01-01-2009 06:34 PM)stl_hemi Wrote:  3 mini drycells. 4" each. I'm adding a 4th come spring. Building it in the spare change left in my center consol each week. Smile

I wish I had enough change to put in my console. How do you like those gaskets hygear got for you?
01-02-2009 06:14 AM
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stl_hemi Offline
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Post: #6
RE: DCX's 2.5v o2 setup
50 amps I was pulling right before I pulled them. give or take a amp or 2.
But I have a 160 amp alt. A red top battery and my electrical system runs at 14.8-15.2 volts.
I'm going to have to rewire my setup to 6 gauge I have a feeling come spring.

Hydo man they are slick as hell. Perfect cut's. And no issues with leaking at all. I still have my epdm o-ring gaskets that I might see if I can sell. Smile
O and they were cheap. .92 a gasket for the design I had. I bought 40. Smile

Paul
2004 Dodge Ram 2500 QC Hemi Off Road
5" of lift with 35" Super Swamper SSR's

Trucks forsale
Buying a 2010 Ram 3500 Mega CTD Smile
(This post was last modified: 01-02-2009 03:08 PM by stl_hemi.)
01-02-2009 03:05 PM
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hydrotinkerer Offline
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Post: #7
RE: DCX's 2.5v o2 setup
What thickness gaskets did you get? Have you noticed any difference in production with the new gaskets? When hygear gets back in town he is picking my gaskets up.
(This post was last modified: 01-02-2009 04:30 PM by hydrotinkerer.)
01-02-2009 04:29 PM
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stl_hemi Offline
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Post: #8
RE: DCX's 2.5v o2 setup
3/32nds I beleive. I'm still bench testing the new gaskets vs the orings I had before. Sofar on the one test cell it's up 1/4lpm more. I'll have to wait till March to make sure once I toss it all back in the truck. It might be the same as before once it's in the rig. Never know.

Paul
2004 Dodge Ram 2500 QC Hemi Off Road
5" of lift with 35" Super Swamper SSR's

Trucks forsale
Buying a 2010 Ram 3500 Mega CTD Smile
01-02-2009 05:18 PM
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tonyc860 Offline
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Post: #9
RE: DCX's 2.5v o2 setup
(01-02-2009 05:18 PM)stl_hemi Wrote:  3/32nds I beleive. I'm still bench testing the new gaskets vs the orings I had before. Sofar on the one test cell it's up 1/4lpm more. I'll have to wait till March to make sure once I toss it all back in the truck. It might be the same as before once it's in the rig. Never know.

do you need effies on front and back sensors because your truck is wide band? I have 4 on my truck also but they are narrow band. Sorry jumping in this thread mid stream ... just trying to see what is going on. Thanks.

Tony
2003 Volvo v70 2.5L turbo
2006 Hyundai Sonata 3.3L v6
2005 F150 4.6 ltr-No longer Thank God!Smile
01-03-2009 12:03 PM
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stl_hemi Offline
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Post: #10
RE: DCX's 2.5v o2 setup
No wideband o2's. They are a elivated Voltage narrowband is all. But I have a wideband gauge setup to monitor what's going on.

Paul
2004 Dodge Ram 2500 QC Hemi Off Road
5" of lift with 35" Super Swamper SSR's

Trucks forsale
Buying a 2010 Ram 3500 Mega CTD Smile
01-03-2009 02:28 PM
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