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drifter17a

r34 g4 pug in

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all, 

i own an r34 gtt and I think standard injectors are 370cc or so and  have purchased a 630cc injectors.

i just need to start the car and let it run for little while before taking it to tuner so question is, can i change the fuel duty cycle or injector opening time to half so essentially the engine can run in idle and low speed with new injectors?

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Yes, just adjust the master fuel number up or down until it runs best.  The 11ms that is in our GTT basemap I suspect means the car that basemap came from had quite large injectors. You may actually need to increase it.

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Many thanks 

 

that won’t impact the engine negatively or blow it up does it?

 

i have read the manual and it seems it is plug and play and i don’t even need to run vacuum pipe to ecu as I can just use the r34 boost pressure sensor or map sensor without any rewiring

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1 hour ago, drifter17a said:

that won’t impact the engine negatively or blow it up does it?

I wouldnt recommend racing it like that but it will be fine to start and drive gently to the tuner.

 

1 hour ago, drifter17a said:

and i don’t even need to run vacuum pipe to ecu as I can just use the r34 boost pressure sensor or map sensor without any rewiring

Correct - but you will need to move the MAP sensor hose to the manifold side of the throttle body as per the note in the manual.

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