I was thinking of installing this sensor in my return line to gather ethanol percentages.
http://www.zeitronix.com/Products/ECA/ECA.shtml
My concern is how tiny the inlet and outlet are. They are essentially smaller diameter than -6 AN hose. If I installed that in my return line after the FPR and both 465 pumps are on it could produce to much of a bottle neck to where I'd have pressure spikes at the regulator because it can't bleed off the excess pressure.
Has anyone tested this? One solution I could do is basically build a Y or T in my turn line so the fuel has two paths to flow. That way part of the fuel tees off to the sensor but excess can still flow around it. It'd be a pain and a lot of fittings and don't want to do it unless required.
The reason I'm installing it is because I switch back and forth between 91/meth and E85 a lot because of the distance involved in getting E85. So I go through a lot of transition tanks of mixed fuels which throws the tune way off. I have some transition tunes I've made where I adjust the stoich to work with the current "mess" in the tank. It's a pain though, I have to make pulls on the highway, data log and figure it out. Flash new tune and try again etc. My thought is if I have that sensor I could plot stoich Vs ethanol content on a spreadsheet quiet easily and after fill up run my pumps for a few or even just make a short drive around the block to totally mix up the fuels. Get the reading off the sensor and plug the correct stoich value into the tune and all set. Then my transition tanks of gas would drive really nice without much hassle and data logging etc.
http://www.zeitronix.com/Products/ECA/ECA.shtml
My concern is how tiny the inlet and outlet are. They are essentially smaller diameter than -6 AN hose. If I installed that in my return line after the FPR and both 465 pumps are on it could produce to much of a bottle neck to where I'd have pressure spikes at the regulator because it can't bleed off the excess pressure.
Has anyone tested this? One solution I could do is basically build a Y or T in my turn line so the fuel has two paths to flow. That way part of the fuel tees off to the sensor but excess can still flow around it. It'd be a pain and a lot of fittings and don't want to do it unless required.
The reason I'm installing it is because I switch back and forth between 91/meth and E85 a lot because of the distance involved in getting E85. So I go through a lot of transition tanks of mixed fuels which throws the tune way off. I have some transition tunes I've made where I adjust the stoich to work with the current "mess" in the tank. It's a pain though, I have to make pulls on the highway, data log and figure it out. Flash new tune and try again etc. My thought is if I have that sensor I could plot stoich Vs ethanol content on a spreadsheet quiet easily and after fill up run my pumps for a few or even just make a short drive around the block to totally mix up the fuels. Get the reading off the sensor and plug the correct stoich value into the tune and all set. Then my transition tanks of gas would drive really nice without much hassle and data logging etc.