Well I am running my Zeitronix ZAVT for my alky failsafe and am looking for various perameters to set the alarms at. Right now I have EGT > 900c. Im not sure of what else? I know I need them for af/r but what should I set the at?

 

I'd trigger it anything above 12.1, guess it depends on what afr you are tunning for though

ttp said they use tps as well

 

Im shooting for mid-high 11's on the af/r.

Im just confused as to the combo of perameters to use. Such as: if ???>??? & < ???? then it goes off, make sense?

 

you can't just do AFR> 12.0 becuase it will go off during normal driving (14.7)

You can set it so if TPS>70% and boost>15 and AFR>12.0
And then also leave the EGT>900

 

See, thats the type of settings Im looking for. I just dont want to go in blind and set them to high, at the same time I dont want it going off all the time.

 

IMHO, having EGT in the equation will not be a failsafe as EGT is way too slow to react. Of course, if you have it as a "any of these conditions are met" and not "all of these conditions" then that is ok.

 

Yeah in that case, I'd have it as 2 seperate triggers...if egts are ever over 900-active

Then the combo logic that dudical posted, I believe TTP recommended the same exact setting

 

You must be confusing the HIGH SPEED LOW MASS ZEITRONIX PROBE with the inferior low speed, high mass autometer type EGT probes.

The low mass, high speed k type thermocouples are amongst the fastest available in the marketplace. They react with a very fast reflex and are NOT like the normal garbage probes in the market.

The associated trait with such HIGH SPEED REACTIVE probes is that they will last 8-12 months as they are thinner than high mass probes.

 

For meth injection I would target boost over your pump gas setting and about 0.3afr leaner than your target AFR.

IF BOOST 22>, AND TPS 70%> AND AFR 12.3> could be a complex trigger

If EGT> 930*C could be a simple trigger

If using a flow sensor, then you can custom tailor IF AUX1 <XX voltage as a simple trigger or combine it with the AFR/BOOST/TPS trigger.

 

You can save the marketing speak on me as I have known him for longer and have used his product for longer than you so I know all about his products and the quality. I know it's a better, faster reacting probe. It is still too slow to react compared to say, the wideband sensor registering a higher reading in a split fraction of a second.

IMHO of course.

 

If we are marketing through real world testing and results, than so be it. We invented these safeguards + implementations and are the reason Zeitronix has added our requests and changes to these systems.

The EGT response time has been fast enough to protect our engine for multiple 10 second passes, upper 5XX whp and 5XX torque on factory turbo, 35psi with methanol and additional experimental fueling. We have a lot more riding on the response speed of the sensor than say someone with "374" little ponies galloping along.

There is nothing like the safety the zeitronix can provide in the marketplace, period. The fast reacting EGT sensor is just one of the tools in an arsenal of sensors available for the programming of safeguard triggers.

 

*sigh*

 

I just got my Zeitronics tonight and I am in the middle of installing it. The alarm point are very helpful, but how do I hook up the relay to open the solenoid? I understand how to connect the the ZAVT-1 to the relay.

 

I went through the same thing. From what Scott told me you just run the green wire to one of the black wires on the soleoid, and the other gets grounded. Doesnt matter which one.

 

So are there any other warnings a person running meth would be wise to use?