NefMoto

Technical => Tuning => Topic started by: idzioch on January 03, 2017, 04:13:15 PM



Title: 2.7BiT KRKTE for 440cc injectors
Post by: idzioch on January 03, 2017, 04:13:15 PM
Hi!

What is the proper value of KRKTE for bosch green 440cc injectors?

S4 have 4bar fuel pressure regulator...

440cc@3bar ~ 508cc@4bar ???

...from s4 wiki - 34.125 / 508 = 0,067

Amiright? :)

Any others maps need to change for first start on new injectors?



Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: lepatron972 on January 04, 2017, 05:34:10 AM
TVUB


Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: Lost on January 04, 2017, 12:51:43 PM
TVUB

8,          10,        12,         14,        16V

2.0989   1.3202   0.9174   0.6694   0.4987


Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: idzioch on January 23, 2017, 02:28:19 PM
THX!

How to check that everything is ok now?
Observe STFT & LTFT or use a wideband sensor?

EGT is now lower on high gears...



Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: roman_tyk on July 27, 2020, 12:09:57 PM
@idzioch did you successfully tune car using this krtkte and TVUB?


Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: jdm on July 28, 2020, 03:06:39 AM
Cant comment on the history or proposed TVUB above, but having run Bosch Green 440cc (0 280 155 968) on 2.7t at 4bar, I can offer some suggested values to get you started.

They are a great injector, but notoriously non linear. FKKVS will absolutely need some work, particularly in low rpm/pulse width areas.



Title: Re: 2.7BiT KRKTE for 440cc injectors
Post by: nyet on July 28, 2020, 05:15:44 PM
They're also terribly undersized for anything but stock K03s, in case it wasn't obvious.