made up my mind, getting one of these.

http://www.zeitronix.com/Products/ECA/ECA.shtml

 

That's the exact site I was looking at last month. Good stuff.

 

I think they can actually sell down to E60 in some parts of the country while still having it marked as E85. I remember seeing a map saying such anyway a long time ago and Utah happened to be one of those areas due to our high elevation and low winter temps.

Back to the topic at hand though, EFR7670. I'd really like to see some success stories out of these things. They looked so damn promising, but man they are like 0 for 10. This isn't the only EFR thread that showed promising results and then a blown turbo shortly after.

 

You know, I've been thinking about that since LeetEvo's problem was discovered - how do you do this in the real world with an E85 daily driver? Do you fill it at home out of a barrel which was checked before/during its fill, or do you take your trusty ethanol checking glass jar and pump a little in before filling the car, or do you trust a GM ethanol sensor?

The complicated part I see is that if you fill the car, and then use the GM sensor or the glass jar, and find at that point that you've only got E50 or some other junk, then you've got 14 gallons of that junk in your tank now. How do you check and then fill, and make the process practical?

 

pump a bit into a big gulp cup and test it before you buy 110 gallons of it? Dave's little tester is a cheap way to do that. I think you answered your own question Matt.

 

Got a link to said tester?

 

https://secure.buschurracing.com/cat...oducts_id=1624

 

Thanks! Been looking for something like that.

 

The best solution is the Zietronix ethanol content meter and wiring it into the car and then using an ECU to trim fuel based on the content.............not the easiest.

 

Yeah what I'm doing. It's quite easy, it's just not cheap.

 

I still want to build a kit to test with one of these-

cb

 

You have money... go buy a turbo... and tell Brent to get welding!

 

Are you running Haltech pro or sport? Currently only the pro supports 4D tuning. The next firmware update for the sport will support the GM sensor for proper flex fuel capability allthough its about 6 months away.

 

I have the TTP Eth content gauge. So far its still E85 here in GA (A little shocked by that to be honest). I played russian roulette for 2 years before that.

 

That Zeitronic display is just that, a display. It doesn't give an output.

The GM flex fuel sensor is the actual sensor that gives the signal.
In other words, stand alone ecu's that can use that ethanol input to compensate mixture based on ethanol content don't need the Zeitronic display, just the GM flex fuel ethanol sensor.
For those that don't need another gauge, but just want the functionality, the GM sensor is 'all' you need