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Injector Duty

justin911

By justin911,
in Engines & Forced Induction

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justin911 Grand Master

justin911

Posted
Posted

hey ppls

i was doing some tests tonight.. and i noticed when im at like 14psi @ 5000rpm doing like 100km in 3rd the injector duty is only 50%.. does that sound right for stock rb25det injectors and a sard fpr ?? the turbo is a hks 2535.

does it jump upto 90% or something realy high in the last 2000rpm ??

i know i could test btw... but dont have many points on the ol licence left.. :)

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NYTSKY Grand Master

NYTSKY

Posted
Posted
hey ppls

i was doing some tests tonight.. and i noticed when im at like 14psi @ 5000rpm doing like 100km in 3rd the injector duty is only 50%.. does that sound right for stock rb25det injectors and a sard fpr ?? the turbo is a hks 2535.

does it jump upto 90% or something realy high in the last 2000rpm ??

i know i could test btw... but dont have many points on the ol licence left.. :P

Depends if your foot was to the floor or just holding 100km.I often go over the 90% duty in my car with 10psi and standard turbo.Thats the reason i have a set of 555s on the way :)

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justin911 Grand Master

justin911

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nah my foot was down.. not flat, but maybe like 3/5 down. it was at 14psi also..

ill try do more tests today and see how high it goes

I would've thought 50% was normal because you're only cruising at 100km/h (albeit in 3rd and at high revs) but you're not on boost etc...put your foot down and it'll probably go up to 80-90% etc...
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