Which IFR calibration to use - Corvette LS6 or Bosch 28.8 ' 58 PSI

[bimbleuk]

I thought the injectors used on the Z06/LS6 were rated to flow 28.8 lb/hr at 58 psi...?


28.8 lb/hr * 0.126 = 3.63 g/s

Exactly the impression I was under but my measurements today verify the Bosch figures exactly as quoted on quite a few websites! I can only come to the conclusion that the injectors were revised at some point but retained the same GM/Bosch part number. Very hard to argue with real data. Not sure what to expect when I go for another logging run now

Bosch: 00 280 155 931
28.55 lbs/hr @ 43.5 PSI (or 300cc / min)


One thing I have noticed in last my log was that the LTFT's were mostly minus when logging (VE disabled, MAF enabled) but after applying the correction to the VE table they then became mostly positive (VE enabled, MAF enabled). So something was going on and I'm still learning what to look for.