Does anyone know how to tune for 26# injectors using tunercat. I ajusted my contant table to 26# but what else.
Thanks Terry

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95 Black Z28 T-top
CAI, LT4 Knock, 2 1/2 Dual Exaust, 58mm ThrottleBody, EGR!

 

What 26# injectors do you have?? If you mean 24# SVO's then the injector constant should be set at 26.46#'s or so.

CanadianZ

 

SVOs or LS1 injectors? LS1 injectors are used with a higher fuel pressure, so they are just a waste of cash if you've got an LT1.

 

My old injectors went bad (109,000 on them) I got a deal on them. They are gm #26 injectors. Did not know of differnt fuel pressure. The car runs just not the same.

 

Try going back to a stock injector constant and see how the BLMs are, how are they now?

 

Ran the car today set to 25# constant 40 vac on 48 vac off. ran from 140 to 128 blm. the left blm seems to be +2 off compared to the right ie. 130 left 128 right BLM

 

Set constant to 24lbs with fuel pressure set to 40 vac on 48 vac off. My blm reads 143left 148right idle rpm set 650, Iac 29, TPS .71