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E85 and return line

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Old Oct 30, 2019 | 10:04 AM
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35thanni
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Default E85 and return line
Going boost and planning on running a flex fuel sensor. Have a few questions.

Will I be able to use my stock ecu with a flex fuel sensor? If not, what are my other options?

I plan on running a walbro 340 or 525 pump with a return line. Will be using a ls3 rail and external fuel pressure regulator. How are you guys getting the return line back into the tank?

How much power can the stock feed line hold before needing upgrade?

Thanks in advance.
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Old Oct 30, 2019 | 12:34 PM
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ECU will depend on which one you have now. There are several factory ECUs that are setup for flex fuel.
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Old Oct 30, 2019 | 04:26 PM
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Originally Posted by JoeNova
ECU will depend on which one you have now. There are several factory ECUs that are setup for flex fuel.
i have the stock 2002 Camaro SS ecu
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Old Oct 31, 2019 | 02:38 PM
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Bump... any help would be appreciated.
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Old Oct 31, 2019 | 02:44 PM
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As far as I know, the 2002 camaro ECU doesn't support flex fuel.
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Old Nov 1, 2019 | 09:20 AM
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I generally run a new feed and use the stock feed as the return, done that many times and works well even with a 2000hp pump.
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Old Nov 1, 2019 | 05:24 PM
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Originally Posted by SLOW SEDAN
I generally run a new feed and use the stock feed as the return, done that many times and works well even with a 2000hp pump.
How do you get the return line into the tank?
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