GVR-4 Flex fuel conversion, tank fuel lines, fuel pressure regulator, injectors, pump etc

[Elpizer2]

Hi guys,

I've been reading about flex fuel,

I just want to know more information, if someone has done this system swap, if there is a guide of something.

Thanks

 

[1990TSIAWDTALON]

A lot of us made the swap. It is pretty simple and just requires a GM Flex Fuel Sensor and set up in ECMLink. I had a tuner set mine up.
Support is found HERE.

 

[llxkevinxll]

https://www.dsmtuners.com/threads/e85-injector-max-lb-min-calculations.253452/

Take a peek here for fuel Injector sizing questions when moving to E85. The fuel injectors/pump may be the one other area of focus when swapping to a flex setup.

 

[habitatguy187]

A lot of dsm guys keep the stock fuel lines when going to e85. Some report problems, some do not. Some blame the fuel, some blame the stock rubber lines. I personally run e85 in both my cars on stock fuel lines. I have also experienced “e85 injector goo”. I tend to believe it is caused by the fuel itself lacking detergent properties, and not my lines. A little regular gas every couple months keeps it away.