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Ej207 sti

EFI Tuning Fundamentals

Discussion and questions related to the course EFI Tuning Fundamentals

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Ok I’m still learning but my mate has a ej207 sti engine that runs 220kw and 22psi of boost

His complaining about his fuel usage

He says his getting 5.4L in 1 kilometre

Is that normal or is it running rich?

Something is very wrong. Even on a race track at sustained WOT use you shouldn't be able to use 5.4 litres of fuel in 1 km. For an example on one of our race cars that is fitted with a 450 hp N/A V8 uses approximately 1.9-2.2 litres of fuel to complete a lap of our 4.1 km local track so that's approximately 0.5 litres per km. Hopefully that gives you some perspective.