return ful setup. - Page 2 - Hyundai Genesis Forum
Technical Tuning of EMS/EFI This section is reserved for discussion about the electronic tuning specifics for the Genesis vehicles.

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post #11 of 12 Old 01-05-2012, 09:38 PM
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Quote:
Originally Posted by CrookedH View Post
It allows you to run higher pressure on the fuel injectors so they flow more. A couple of companies have made 300whp on the stock injectors using a return line setup and higher pressure.
crooked how are you?
yes it allows higher preasure

but the main reason this should be done is the returnless does not allow for high flow and in high flow situations the preasure will drop causing fluctuations with each injector pulse causing eratic injector flow and possible detonation. some manufacturers use a pulsation damper to reduce this. if at idle you hold the fuel rail you will note the injector pulse is amplified by preasure drop at each opening this is magnified at high load wide injector openings.

we up the size of the intank pump and use returnless at over 300 rwhp for this reason.
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post #12 of 12 Old 05-05-2015, 08:02 AM
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The individual subject with successively a archetypal setup like this is the lumber tank design that the OEM fuel tank uses. The typical fuel pump picnic basket uses a tap line that lures the fuel out of the other side of the tank and short of it you'd run out of fuel around a 1/4 tank. I'm working on a resolution for this issue with some help as we speak.


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