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Injector Question

James_03

By James_03,
in Engines & Forced Induction

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James_03

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Hey guys,

I just wanted to know if it is possible to move to larger injectors on the standard ecu without any side effects to idle?

A couple of stock gtr injectors were leaking from the bodies in my 30dett so I replaced them with new 555cc nismos, only now it seems to be over fueling. Has a lot of black smoke on idle. I assumed that the ecu would trim it down but automatically, I know it cant take advantage of them it terms of higher flow, but I thought the idle would stay pretty much the same.

So yeah will an after market ecu be required to run them? is anyone running these on standard management ok?

Cheers.

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https://www.sau.com.au/forums/topic/185574-injector-question/
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James_03 Mentor

James_03

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cheers for the link man that clears that up.

I am running a rb30dett with 26 head and stock management, so I figured it would have been running slightly lean with the 444cc in it anyway, hence moving up another 100cc wouldn't be that bad.

Meh should have known better, running ok with 444 and not with the nismo only really leaves you with one conclusion doesn't it. Got a SAFC on the way now so I can trim it down.

Cheers all.

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