for those with batteries in the trunk, the stock tray area is perfect for the ethanol content sensor. just a strip of aluminum bent 60 degrees with a couple holes.

 

That looks like a nice location. -4 AN return line?

 

yes, but thats temporary to get it hooked up to the stock lines. when i get my proefi all wired in and running good, ill swap in the -8/-6 lines. i dont want too much going on at once.

 

it tests your E85 in a much more expensive,albeit cool way than the handheld bottle testers.if they ever some way down in price i would like to have one,but at the current $500+ i'll stick to the $5 testers when i fill up.

i actually just missed one used in the for sale section for $300 total,damn!

 

Did you look on Zeitronics? thats where i got mine. But if you get a E-85 sensor and the ECA, then yes its over $500 for the setup.

http://www.zeitronix.com/order/order.htm#ECA

 

I need a way of going from the -6AN to the 1/4 hose clamp setup coming off of my fuel-pressure regulator. I am making a bracket that will put the sensor basically above the fuel-rail.

What is the cleanest way to get from the new style ethanol sensor (which is 3/8" quick connect) to the 1/4 hose that the return line is fed with?

 

I use these on both ends of my flex fuel sensor. Works perfect and holds 80+ PSI of fuel pressure.





http://www.autozone.com/1/products/4...n-800-085.html

 

I saw those as well, however the hose for the FPR is 1/4". The connector you posted is for 5/16". There is a 1/16th" difference in diameter, I was hoping to find something that would be better for 1/4".

 

Those are what I used to connect to my stock FPR to my GM flex fuel sensor. Just make sure you use a good clamp. Use a second clamp if your worried.

 

Here is what I am doing to mine. I am hoping I can make this work.

I tig welded together an aluminum bracket that goes to the same spot where the throttle cable bracket bolts too. I am eliminating the OEM fuel return line and replacing it with some AN-style plumbing that feeds the flex fuel sensor. Here is a little preview of what I have done so far.

I have also replaced the fuel rail with a larger one, and fitted a fuel pressure sender for a fuel pressure gauge. The O-rings were not installed correctly when this engine was rebuilt (it was leaking in cylinder number 3, vacuum & boost leak) , so thats why the fuel injectors are also out.


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Some thing I still have to resolve:

 

subbed for later.

 

I feel I have somewhat "completed" this system (well the plumbing part anyways).

I started the car and it ran good with no leaks.

I am really excited that I had no problems (I am kind of OCD about this kind of thing)

Compression fitting on the output side of the fuel pressure regulator converts the plumbing to AN 6





AN lines turn into 3/8" quick connect style. 90 degree fitting on the input side turns into the zietronics sensor.





Aluminum bracket holds sensor:






fuel comes out of the sensor to a 3/8" quick connect, which converts to AN 6 again and then back to the oem return hard line which has a compression fitting to make it mate to the AN 6 setup:

 

 

I finished this today. I decided to go from having 3 gauges on my dash to 5. I included the fuel pressure and ethanol gauges that previously had the sensors installed in the engine bay.

I relocated the AC below the factory location for more room with the gauges. It worked very nice. I am happy with the result.

I plan on taking off the bezel of the ethanol gauge and painting it silver to match the others, but my paint booth exhaust system hasn't been finished yet so I can't do that yet.

In the photo I have 93 octane in the tank, so that's why it's showing E9

 

Is that custom center console, or does someone make it?