here's something i'll be trying on my fd motor:

i got a turboxs tuner pro. cool little unit...does afr, egt and knock. the egt is kinky--it needs a 0-5v signal...odd. so the egt probe they sell comes with a little black box that converts the signal.

one of the haltech inputs can be configured for trim control...egt's get too hot, and just dump in enough gas to put out the fire as a safeguard. when i do it, i'll hook it up to a switch so i can disable the input signal to the haltech when i'm cruising on the freeway, then flip it on when i get on it.

i think this will be pretty useful for tuning the high compression rotors in a turbo engine.

thoughts?

 

Your egt temps are a function of fuel and timing, just dumping gas in it may do the oppisite of what you want depending on conditions...

 

^not really, even gasoline has cooling properties. Its all in the tuning, run it rich enough and the egt's will come down.

 

the conditions will be high egt's under high boost. no problem.

 

If the haltech has MAP or RPM based outputs then they could control a switch automatically.
Grant

 

Why do you want to lower the egt by use of fuel. I know it's used sometimes to help cool the rotor face in extreeme conditons. Do you monitor the timing?

 

this isn't somethign that's going to be correcting all the time.

just if i start detonating, egt's will shoot up, THEN i want to add enough gas to actually make the engine rich-misfire, saving it from boom.

 

I am fully aware of gasoline's cooling properties but what happens when you have high egt's at full load due to not enough ignition advance and you add fuel?

 

Sounds like a BBQ to me

I would be weary of trying something like this

 

make sure your timing is pretty aggressive and it won't be a problem i guess. this is not something i would try, but its an interesting idea.

 

i don't think people are getting it.