11p swap from l67 injectors to larger help needed
Posted: Fri Sep 08, 2023 12:23 am
So been running my l67 on 11p now for couple years and has been good. Tho now i want to step up to e85 and know my stock l67 injectors are at around 80% duty cycle now already on 98.
Have dug up some siemens 60 pound shorty injectors from my garage and have a larger walbro fuel pump to throw in. Yes i know bosch injectors are better than siemens but i got these siemens already cost me nothing.
I would like to swap the siemens injectors in and get it just running half decent on 98 then drain all the 98 and switch up to e85. I think the jump from smaller to larger injectors and e85 is 2 much for me to do in one go.
Couple questions i have is
Siemens injectors are 60lb at 3 bar
L67 injectors 36 lb at 3 bar
So 60 / into 36 is 1.66
So the new injectors are 66% larger than old ones
So my memory is a bit foggy as i done the swap a few years ago and done some digging through old threads i had on here.
But will i edit these tables below. Also included pic of my current values / tables below
RUN A/F Parameter displacement injector flow grams per sec taking 66% off it so making it to 0.04838
Crank first and 2nd stages tables by 66% also.
Will crank A/F parameter min crank BPW need to be changed at all?
Also
Injector Bias add on vs injector pulse width for non linear
and
Injector opening time VS battery voltage
Will these need to be altered at all.
The e85 part i will worry about once i sort all this out on 98
I know from a 4 cylinder car i played with on e85 at home I will need a crap load more fuel when cold and more on the transient when cold also and for cranking when cold.
Have dug up some siemens 60 pound shorty injectors from my garage and have a larger walbro fuel pump to throw in. Yes i know bosch injectors are better than siemens but i got these siemens already cost me nothing.
I would like to swap the siemens injectors in and get it just running half decent on 98 then drain all the 98 and switch up to e85. I think the jump from smaller to larger injectors and e85 is 2 much for me to do in one go.
Couple questions i have is
Siemens injectors are 60lb at 3 bar
L67 injectors 36 lb at 3 bar
So 60 / into 36 is 1.66
So the new injectors are 66% larger than old ones
So my memory is a bit foggy as i done the swap a few years ago and done some digging through old threads i had on here.
But will i edit these tables below. Also included pic of my current values / tables below
RUN A/F Parameter displacement injector flow grams per sec taking 66% off it so making it to 0.04838
Crank first and 2nd stages tables by 66% also.
Will crank A/F parameter min crank BPW need to be changed at all?
Also
Injector Bias add on vs injector pulse width for non linear
and
Injector opening time VS battery voltage
Will these need to be altered at all.
The e85 part i will worry about once i sort all this out on 98
I know from a 4 cylinder car i played with on e85 at home I will need a crap load more fuel when cold and more on the transient when cold also and for cranking when cold.