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AnthonyNYC
Newly Aquired
Joined: 16 Jun 2008
Posts: 30
Location: Long Island, New York
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 Posted: Wed Nov 05, 2008 6:45 am Post subject: Thinking of going from TEC3 to a TECGT, Opinions needed. |
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First off my TEC3 (purple box) works flawlessly. I am currently using the following input/output/GPO Options.
Shift light
Datalog Switch
Datalog Air Fuel
Datalog EGT1 runner
Datalog EGT2 runner
I would now like to datalog Fuel Pressure but cannot since I am all out of inputs. I can use the laptop to datalog but I like having the switch when I am racing. I can either buy the PCS Dash for $600 or get the TECGT. I need to be able to control at least 6 injectors but maybe 8injectors on a 2 Rotor 13B. I currently have 4 injectors but moving to 6 since I'm running E85.
What would you guys recommend?
Thanks,
Anthony
_________________
10.32 @139.4 MPH - Vid http://www.youtube.com/watch?v=0sZnSILLt3k&fmt=18
1st place - Sport RWD - Fall Nationals 2008 Etown
1st place - Street Tuner - Boti Atco 2008
1st place - Street Tire - SummerSlam 2008 Etown
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TimZ
founding member
Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
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| Posted: Thu Nov 06, 2008 4:48 pm Post subject: Re: Thinking of going from TEC3 to a TECGT, Opinions needed. |
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| AnthonyNYC wrote: |
First off my TEC3 (purple box) works flawlessly. I am currently using the following input/output/GPO Options.
Shift light
Datalog Switch
Datalog Air Fuel
Datalog EGT1 runner
Datalog EGT2 runner
I would now like to datalog Fuel Pressure but cannot since I am all out of inputs. I can use the laptop to datalog but I like having the switch when I am racing. I can either buy the PCS Dash for $600 or get the TECGT. I need to be able to control at least 6 injectors but maybe 8injectors on a 2 Rotor 13B. I currently have 4 injectors but moving to 6 since I'm running E85.
What would you guys recommend?
Thanks,
Anthony |
You could free up A/D4 by running the AFR through a divide by 5 voltage divider and using the EGO input instead.
_________________
Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
-FZ, Joe's Garage
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AnthonyNYC
Newly Aquired
Joined: 16 Jun 2008
Posts: 30
Location: Long Island, New York
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| Posted: Tue Nov 11, 2008 9:07 am Post subject: Re: Thinking of going from TEC3 to a TECGT, Opinions needed. |
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| TimZ wrote: |
| AnthonyNYC wrote: |
First off my TEC3 (purple box) works flawlessly. I am currently using the following input/output/GPO Options.
Shift light
Datalog Switch
Datalog Air Fuel
Datalog EGT1 runner
Datalog EGT2 runner
I would now like to datalog Fuel Pressure but cannot since I am all out of inputs. I can use the laptop to datalog but I like having the switch when I am racing. I can either buy the PCS Dash for $600 or get the TECGT. I need to be able to control at least 6 injectors but maybe 8injectors on a 2 Rotor 13B. I currently have 4 injectors but moving to 6 since I'm running E85.
What would you guys recommend?
Thanks,
Anthony |
You could free up A/D4 by running the AFR through a divide by 5 voltage divider and using the EGO input instead. |
Tim,
Thanks for the response. This sounds great. Can you elaborate a little more please?
Thanks,
Anthony
_________________
10.32 @139.4 MPH - Vid http://www.youtube.com/watch?v=0sZnSILLt3k&fmt=18
1st place - Sport RWD - Fall Nationals 2008 Etown
1st place - Street Tuner - Boti Atco 2008
1st place - Street Tire - SummerSlam 2008 Etown
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TimZ
founding member
Joined: 25 Feb 2008
Posts: 120
Location: Dearborn, Michigan
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| Posted: Tue Nov 11, 2008 12:56 pm Post subject: Re: Thinking of going from TEC3 to a TECGT, Opinions needed. |
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| AnthonyNYC wrote: |
Thanks for the response. This sounds great. Can you elaborate a little more please?
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The circuit I posted in this thread will work, plus the thread explains why you want to use a divide by five at the input, rather than just limiting your wideband output to 0 - 1 volts.
This circuit is essential if you are using an Innovate LM-1 due to grounding issues with its heater circuit. However, if you are currently using your wideband without ground loop issues, then it's probably overkill. Assuming your wideband is currently working properly at the A/D4 input, you should be able to use a simple resistor divider network. I don't have time to draw up the circuit right now, but here is the wiki. Basically for a divide by five R1 needs to be 4 times the value of R2. Keep the value of R1 above 1kohm and below, say, 20kohm
_________________
Information is not knowledge
Knowledge is not wisdom
Wisdom is not truth
-FZ, Joe's Garage
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AnthonyNYC
Newly Aquired
Joined: 16 Jun 2008
Posts: 30
Location: Long Island, New York
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| Posted: Wed Nov 12, 2008 5:35 am Post subject: |
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Tim,
Thanks so much for the reply but I am no where as smart as you. I can barely add percentages in the VE table lol. I think I might be going with the GT for the additional inputs/outputs. Thanks again for your response.
Anthony
_________________
10.32 @139.4 MPH - Vid http://www.youtube.com/watch?v=0sZnSILLt3k&fmt=18
1st place - Sport RWD - Fall Nationals 2008 Etown
1st place - Street Tuner - Boti Atco 2008
1st place - Street Tire - SummerSlam 2008 Etown
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