tuning for stage 2 injectors

[907DAVE]

Originally Posted by F-127

Injectors may not flow anything for XX m/s (I'm saying that because I don't know the time) This time would be your "pivot." You could then multiply by a percentage being bigger nozzles empty quicker.

Great point, seems like injectors take .4-.5ms before they will even deliver any fuel.

Also it is very important to have the proper ICP for the larger nozzles to maintain proper atomization. Beware that higher ICP will indirectly advance SOI because the fuel is being injected faster.

This is my battle right now.........getting the perfect balance between ICP, PW, and SOI. I am starting to win the battle but at first it seemed like I was never going to.

[bsdracing]

so besides the actual tuning for bigger injectors would i need to write all new tunes for each position on the chip IE like 80hp DD I make the tune to adapt the bigger sticks and then can I just change the same values for like 40hp tow and or 140hp race? or would it be like everything different?

[907DAVE]

Not exactly sure what you are asking but all the tunes are designed to do a specific job and there can be quite a few differences between them. For example you might want to use less SOI in a Tow program then you would in your Economy program, or less fuel in a Heavy Tow, etc.

Of course I feel the major differences that define different tunes is the shift strategy's.

[bsdracing]

well what i am trying to say is if I have all my tunes for a stock truck 140,100,80,etc. can I just change them for the stage two sticks? and still have the same tunes? or would every tune need to be completely changed?

[907DAVE]

Ohh I see........ Yes you can just make the needed changes for the injectors to existing tunes.

[bsdracing]

Originally Posted by 907dave

Ohh I see........ Yes you can just make the needed changes for the injectors to existing tunes.

alrights thanks thats good to know that would save some time