EGT and compensation on Turbo applications

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AquariousRS
Posts: 1
Joined: Thu Nov 25, 2010 4:06 pm

EGT and compensation on Turbo applications

Post by AquariousRS »

Does anybody use a EGT thermocouple on a turbo application using DTA and use it to compensate fuel/ignition when its getting a bit hot?
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: EGT and compensation on Turbo applications

Post by stevieturbo »

I wouldnt mess with timing too much. You can certainly add a little fuel though. But you cant retard timing as that will just make things hotter, and you cant really advance timing either.

But yes you can easily do it using one of the Analogue inputs and a cheap thermocouple amp

http://www.3rdbrakeflasher.com/index.ph ... a1ef46f1d8
nikfruit
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ECU Model: S80 Pro
Firmware Version: 71
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Re: EGT and compensation on Turbo applications

Post by nikfruit »

I am using plx egt device, on ana. Input but only for adding some fuel.
Marcio Leal
Posts: 29
Joined: Fri Jan 20, 2012 6:56 pm
ECU Model: S60 Pro

Re: EGT and compensation on Turbo applications

Post by Marcio Leal »

Is it possible to lower the boost pressure via Turbo PWM MAP using analog with EGT?

What AUX imput should I use?
stevieturbo
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Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: EGT and compensation on Turbo applications

Post by stevieturbo »

I can't think of any way you'd be able to do that.

Unless somehow you could pretend an EGT input after an amplifier/adaptor was a speed signal, and then base boost adjustments on "speed"

But even that wouldnt be easy
Alex DTA
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ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: EGT and compensation on Turbo applications

Post by Alex DTA »

Marcio Leal wrote:Is it possible to lower the boost pressure via Turbo PWM MAP using analog with EGT?

What AUX imput should I use?
If you're not using the gear pot input, you can connect the 5v output from the EGT sensor to Analogue 3, and then enable boost by gear.
You can also use this as a general boost modifier if you want, with a rotary switch instead of the EGT input.

It's something that will be addressed in the future.
Marcio Leal
Posts: 29
Joined: Fri Jan 20, 2012 6:56 pm
ECU Model: S60 Pro

Re: EGT and compensation on Turbo applications

Post by Marcio Leal »

Thanks Alex, I understood the point.
But the EGT compensation is something that a new firmware/DATSwin could implement this function in analog 1/2/3? Boost, fuel and ignition.
Rob Stevens
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Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: EGT and compensation on Turbo applications

Post by Rob Stevens »

For now you could send the EGT signal to both gear position to alter boost and also send it to ana1 for fuel and ignition.
Or use the PWM output associated with ana1 to disable your boost solenoid so the turbo would be on waste gate spring only.
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: EGT and compensation on Turbo applications

Post by Alex DTA »

Marcio Leal wrote:But the EGT compensation is something that a new firmware/DATSwin could implement this function in analog 1/2/3? Boost, fuel and ignition.
Yes, that's planned for the future.
Marcio Leal
Posts: 29
Joined: Fri Jan 20, 2012 6:56 pm
ECU Model: S60 Pro

Re: EGT and compensation on Turbo applications

Post by Marcio Leal »

Hi Guys, any news about firmware or software modification to implement EGT as a dedicated menu?
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