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R33 gtst injectors

Sgtsparks91

By Sgtsparks91,
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Sgtsparks91 Rookie

Sgtsparks91

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Hey guys,  first time poster,  long time skyline lover. 

I have a series 1 33 gtst, just purchased the car and have a question. 

Have been told its been rebuilt 40xxx ago and had bigger injectors and bigger girl pump installed with a standard ecu.  it shoots flames.. Like hella shoots them..  All the time.

On the jdm cred side of things it's badass but I can't help but wonder..

Is the flames due to the bigger injectors making it run rich? 

With it having bigger injectors,  would I benefit from installing an aftermarket fuel pressure regulator? 

If so,  what would the ideal pressure be or how would I find that figure?  

 

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KiwiRS4T Grand Master

KiwiRS4T

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Get a wideband and check the actual afrs. They may be rich or lean but unlikely to be right.

If they are wrong you can either put standard injectors back in or get an aftermarket ecu and a tune (or work out a Nistune solution with an R32 or Z32 ecu.

If your injectors are bigger than stock an fpr is not the way to tune.

Sgtsparks91 Rookie

Sgtsparks91

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I can get an RB20de nistune ecu of a mate,  apparently I switch 2 wires on the injectors and I'm. Good to go,  not to sure though,  I've read a few threads a out it.  

I have been told to get a tuneable ecu to solve this issue and of course just to get better performance in general but wanted a better understanding of what's actually going on. 

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