Oem fuel injectors to larger injectors lean issue

[Tsuchinoko]

Hello,

I changed from oem fuel injectors 240cc to a set of SL9-310cc RC injectors.

After i changed in hondata from 240cc to 310cc in the fuel trim settings the afr goes very lean from ~14,7 to ~16.

Any clue on this?

Note the injectors are brand new.

Where can i find the dead time values for my new injectors?

Thanks for the help

[Tsuchinoko]

I found these:

Injector Flow CC/min Flow LB/Hr Ohm 10v 11v 12v 13v 14v 15v
RC Engineering 310 30 16 1.14 0.89 0.72 0.55 0.43 0.33

Are these values correct?

[Tsuchinoko]

Tested this dead times but with no sucess.

Fuel pressure @50psi

I need help..

Thanks

[Luke]

set your fuel pressure to the pressure the injectors need.

if your stock injectors were driven with a higher pressure, recalculate the exact pressure needed now.

best regards Lukas

[Tsuchinoko]

But if go with 43.5psi the mixture wil go leaner or i'm wrong?

[Tsuchinoko]

Some update if i leave the old injector 240cc and new injector 240cc in the fuel trim settings the readings goes to the rich side like the way it should be but why these? It should work new injector 310cc the dead times are correct by RC they confirm to me.

Thanks

[Spunkster]

Can you post calibrations and datalogs showing this?

[Tsuchinoko]

Yes i can do that no problem.

I have some update i was testing and i found that it work normally arround 0.92ms @ 14.2v at idle.

This values are normal for a 310cc injector? Can i use with no problems to the injectors?