dakota jtec+ RT reads stock and boost

[Tobbe1]

stock and a boost race tune scaled for 42lb injector and a 2bar sensor

dakota RT 99 stock.hptdakota rt blower race 2bar sensor.hpt

[jbliss15]

hey man, are you still around?

[Tobbe1]

Yes

[jbliss15]

Yes

cool.

how did you scale? did you just do the simple math or was there something else?

i have a honda map sensor that can read up to 11.4psi, not sure if that is considered a 2 bar or not. also i have 36lb injectors

just wondering how you scaled, i did simple math and under boost i'm great and part throttle its good, its really other areas that are full rich like cruising with a touch of throttle

do you know what vacuum these sensors start at on the first row in the base fuel table? is that like -25 or -20?? -30????

thanks man

[Tobbe1]

42lb ford injectors and 2bar map
"Cut" table in na and boost

[Tobbe1]

Thats the base map then its all back to fine tuning

[jbliss15]

cut table? you mean cut the values down based on the difference in size of injector?

[Tobbe1]

Look at voltage charts for 1bar and 2bar mapsensors

[jbliss15]

i guess you're going to have to dumb it down a lot for me if you have the time. i appreciate your help tho

[jbliss15]

actualyl i think i see what you need i'll try and fgind it for the honda map

[jbliss15]

looks like this for honda map

Vacuum (inHg) / Voltage (V)

0 / 3.0
5 / 2.5
10 / 2.0
15 / 1.5
20 / 1.0
25 / 0.5

[Tobbe1]

Im not at the computer right now
https://www.facebook.com/Taracing70

[jbliss15]

so i added boost by following the pattern does it look like it might be right?

Vacuum / boost / Voltage (V)

11.4psi / 5.0
8.55 / 4.5
5.7psi / 4.0
2.85psi / 3.5
0 / 3.0
5 / 2.5
10 / 2.0
15 / 1.5
20 / 1.0
25 / 0.5

[jbliss15]

the problem with that last chart is that there are 9 rows in the base fuel table, that chart has 10

[jbliss15]

i know that 66kpa is 0 vac

ss.png

[jbliss15]

i'll try to post my tune i need to switch to my tuning tablet

[jbliss15]

i'll try to post my tune i need to switch to my tuning tablet

tune attached

main issue is warm start, not hot or cold

and decel goes full rich, or egg shell amount of throttle

[jbliss15]

Which injectors did you use?

Are they the bosch 0280155968 "green giant" 42lb??

[Tobbe1]

Yes ford motorsport
A lot of china junk out there

[jbliss15]

Cool I'm gunna link you listing for some can you confirm they are the ones you used?

I think they call these the skinny giants.

I bought some China 36s and they are leaking already really bad....