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I just got a set of Sard 800cc injectors Hi resistance.(top feed) with a lag time of 1.60ms

this is what i did

370cc stock /800cc new = 0.4625 i rounded it to 0.46%

1.60ms(new)-0.528ms stock= 1.072 rounded to 1.07ms

0.46% and

1.07ms

must be entered into the PFC.

first question is. Is this right.

Second when i use a meter on the stock injector i get a resistance of about 11 ohms and the new ones are 14 ohms will this be a problem.?

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https://www.sau.com.au/forums/topic/233832-just-upgrade-injector-on-rb25det/
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Im also planning to get the 800cc instead of 650cc. Good if anyone knows what is the settings, after doing that would i need to do a complete retune or it just would change the injectors value (lower percentage) yet drivable as before?

what were the lag time on your injectors?

what values did you enter in the pfc.

Sorry, I forgot about this post.

We tried lots and lots of different latency settings, both positive and minus. The best and most efficient result coming from a setting of 1.6ms and 46% injector size difference (injector size obviously not the issue here). It is still injecting fuel for too long however this setting gave the best result. This was all while on the dyno. AFR's were all healthy at this setting. I am keen to get it back onto the dyno and try 1.07ms again.

Sorry, I forgot about this post.

We tried lots and lots of different latency settings, both positive and minus. The best and most efficient result coming from a setting of 1.6ms and 46% injector size difference (injector size obviously not the issue here). It is still injecting fuel for too long however this setting gave the best result. This was all while on the dyno. AFR's were all healthy at this setting. I am keen to get it back onto the dyno and try 1.07ms again.

yeah mate you should try the 1.07 ms this should work OK.

please let me know what you got.

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