HI Guys

I need to install some new injectors before I take my car for remapping
but as you have probably guest I need to install them and drive the car
to where it is being mapped
I have an APEXI POWER FC & CONTROLER and I'm upgrading from standard
380's to 440's I have read the apexi instructions but just don't quite
Understand.
Injector pulse correction value
This bit I understand I think.
380 / 440 = 0.863 which equates to approx 86.5%

But it’s the bit about injector lag correction I can't work out
As I don't know the current lag time for the 380's and 440's
or am I being completely thick.

Please help.

Many Thanks
Tony

 

where have all the experts gone.

 

Don't worry about it, either just drive there off boost, or set the injector correction to about 86% to correct for the extra fuel the bigger injectors would add for each opening pulse. WHOOPS - see below
Don't know about lag time so ignore it, let the mapper sort that for you! Should'nt hurt it but don't thrash the engine!

BUT as I just recalled, the Apexi THINKS it is set for for 440 injectors anyway .. ( I only have my PFC set to 80% for 550 injectors from the 380's post mapping, AndyF said it was due to the above pre set of 440's in the PFC ).

Best bet - call the PFC supplier or your Mapper!