Timing for higher flow injectors

[scramHD]

I currently have 50hp industrial sticks. I am upgradig to 90hp this week. On vacation now, when I get back they will be installed. I have heard that you need to reduce timing.

Problem. I have no idea how to do this. Little nervous about screwing truck up changing pilot and main injection timing.

Any body have suggestions or tutoring with tuning?

lawrence

 

[ripmf666]

Fill your sig in were we know what you have helps alot, welcome to the site.

 

[LarryJewell]

moved here

 

[othrgrl]

You only need to adjust timing if you are adjusting pulse width - which is going to be neccesary to keep from draining the rail, running high EGTs, and smoking all the time. Do you have EFI Live?

You can give me a call if you like 330-442-7879. I have 90hp II sticks in my truck with a Cheetah and stock LBZ CP3 and have the timing and PW on my big tune set up really nice - no rattle and I hold about 21K psi all the way down the track on my 12.44 passes (no bottle all motor) - my EGT hover around 1400* at WOT in 4WD.

 

[scramHD]

Nice. Thanks for the hearty welcome here. Yes I have EFI Live. My sig will be as follows.......02 LB7.....PPE(stg 4 trans, boost valve, ported fuel fitting), EFI Livev2, TTS dual lift pumps, Ind Injection 90hp injectors, modded intake and couple more.

lawrence