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Recommended fuel pressure - Evo 5

606 views 2 replies 3 participants last post by  TrickyDick 
#1 ·
Hi there

Can anyone advise me on recommended fuel pressure settings for 1000cc injectors on an Evo 5. Perhaps the answer isn't that simple and depends on the spec of the engine. But if there's an easy answer I'd be grateful for advice.

Thank you

Rach
 
#3 ·
The pressure and injector duty cycle interact so one requirement depends on the other to a large extent. My 550HP tune originally was running 4.5 bar (partly in error I think) with 1000cc injectors but the very low injector duty made it a bit rough at low rpm and load. Recently it was reset to 3.5 bar for a 580hp tune and its now a lot smoother.

The standard 3 bar with open vac line will be fine in most cases I'm guessing.
 
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