What is the best way to tune WOT after changing injectors

[wesam]

Recently i changed the injectors and i just finished tuning the VE and now i want to start tuning the WOT
what is the safest way to tune the WOT i don't want to be too much lean or too much rich
I'm afraid of knock at high rpm 6000+
i think of the following :
1- smoothing the VE table columns 95-105
2- keep the spark the same as its from last tune it was 28
3- decrease the pe to 0.85
4- make a logged run
any help will be appreciated

[joecar]

First, recalculate the IFR table B4001 (using measured rail pressure): showthread.php?4821-Calculating-Injector-Flow-rate (http://forum.efilive.com/showthread.php?4821-Calculating-Injector-Flow-rate)

Edit: then I was going to say: try to get data for the other injector tables, if at all possible; I see you have gotten some (post #3).

[wesam]

I finished modifying the injectors data IFR,voltage correction and minimum pulse width
now i just want to tune the WOT

[joecar]

Then:
- make sure your wideband is calibrated (heater cal, free air cal) and sanity checked;
- bump up VE table columns 95-105 kPa by some amount (a little, don't over do it);
- if you didn't see knock around 4000-5000 rpm then keep the same timing;
- PE at 0.85 Lambda is good (be sure it is Lambda and not EQR);
- when you run/log if you detect knock, then immediately back off;
- be sure use the throttle progressively to try to get as much good data as possible, and be sure to apply the transient filter;
- if your BEN correction is more than 4-5% in either direction, then rebump the VE table by the appropriate amount and start again.

[joecar]

Make sure that PE enables and with no delay.

[redhardsupra]

if your VE/MAF was right on before changing injectors, your WOT fueling should've stayed right on. If it has changed, that means something about your injector calibration is off.

[joecar]

Recently i changed the injectors and i just finished tuning the VE and now i want to start tuning the WOT...
Does that mean you did the WOT columns of the VE table...? I assumed not.

So then you are trying to dial in PE for best torque and power (dyno)...? Or best elapsed time and trap speed (strip)...?

Exactly what RHS/Marcin said, if your VE table was already corrected then the only thing you need to touch is the injector tables.