Port Injection 2020

[Terry@BMS]

The systems coming out still don't offer the same levels of integration the JB4 PI controller has offered for years.

1) Uses low fuel pressure in conjunction with boost pressure to evaluate injection pressure and adjust PI IPW dynamically as required to maintain consistent flow volume. This becomes particularly important in applications that are the edge of their low fuel pressure supply. As low pressure drops or oscillates port injection IPW must be dynamically adjusted to avoid run lean conditions.
2) Monitors pedal input, clutch input, gear, throttle position, etc, allowing more advanced mapping and instant cut of PI when letting off the gas or when traction control kicks in to avoid backfires.
3) Monitors AFR in both banks and can cut PI flow in the event a misfire event is detected preventing a potentially lean condition.
4) Monitors current through the injectors and sends a signal back to the JB4 altering it of various problems including a clogged or disconnected injector, blown electrical fuse, loose ground, etc.
5) Monitors fuel trims in each bank and failsafes in the event of a mismatch of more than 15% indicating a potential boost single cylinder boost leak or injector flow issue.
6) Allows easy user adjustment of overall fuel volume using linear "Fuel Bias 0-100" values by RPM, greatly reducing the typical mapping complications when making manual tuning changes.
7) Integrates in to the JB4 multi-map system which produces on the fly PI mapping changes when you change maps, when boost is reduced in lower gears, or during anti-lag engagement.
8) When equipped with a JB4 integrated flex fuel sensor or JB4 virtual flex fuel sensor can automatically adjust port injection volume based on E85 mixture allowing for easy mixture changes.
9) Enhanced mapping logic such as tip in supplement to boost port injection during sudden transitions like spool up or gear changes where the high pressure pump tends to have problems keeping up.
10) Does not require a separate interface and cable for mapping and tuning port injection. It's all done right through the JB4 interface and logs greatly simplifying the process.
11) Includes an extra output to run your second fuel pump OR WMI PUMP (for port injection meth), eliminating the need for an extra Hobbs switch.

 

[JohnDaviz]

I know you Americans are different. (not really)
Here in Germany, behaviour like yours Terry is when the player fears the entering of a maybe bigger player.
I am not saying it is but still kind of immature.

 

[Terry@BMS]

In the USA we market everywhere we can, as often as we can, without regard for hurting feelings.

 

[GreyNBlueE92]

Maybe you could explain how it is better? Not doubting, just would like to know the details. I'm sure others would as well...

Should've read the quote...

 

[Milan]

Maybe you could explain how it is better? Not doubting, just would like to know the details. I'm sure others would as well...

you mean like the post three above yours where it’s listed in detail?

 

[GreyNBlueE92]

you mean like the post three above yours where it’s listed in detail?

Unfortunately yes

 

[JohnDaviz]

I don´t see why the details show "why" it is better.

Except Nr. 7 i don´t see anything special.

 

[N54135iAT]

I know you Americans are different. (not really)
Here in Germany, behaviour like yours Terry is when the player fears the entering of a maybe bigger player.
I am not saying it is but still kind of immature.

Thats why you block everyone criticizing you and your wannabe mapping here in germany? Funny guy tell us more

 

[9krpmrx8]

Lot's of options now days, that is great for everyone.

 

[G3RSTY7]

If you seen how a properly working traction control works in an emergency situation you would be shocked how crap this system works.

Try it on a skid pan and log with pi on and off and feel how jerky it is with it on.

With it off its not an issue

Good to know, I was also wondering if i could simply turn PI off for those colder lower traction commutes. If I can easily turn it off that’s great since I have a Fx180 HPFP doing the primary should still be plenty especially at elevation

Thoughts on Motiv Reflex? integration into MHD? will track control not be an issue with Reflex? Its early yet just curious what people are thinking. It looks like a great product, integrates with OEM or standalone ECUs but what advantages will it have over other PI solutions with stock DME. Waiting to see more details and how people like it... keeping an eye on it though for sure.

I’m bugging Motiv about updates. Once they are ready to use it to scale ethanol maps in addition to the PI i’ll be ready to be first in line and guinea pig a 9174 on it

 

[NoGuru]

Good to know, I was also wondering if i could simply turn PI off for those colder lower traction commutes. If I can easily turn it off that’s great since I have a Fx180 HPFP doing the primary should still be plenty especially at elevation

I’m bugging Motiv about updates. Once they are ready to use it to scale ethanol maps in addition to the PI i’ll be ready to be first in line and guinea pig a 9174 on it

You don't really turn off PI but set it to activate at a certain boost level like 15psi.

 

[houtan]

You don't really turn off PI but set it to activate at a certain boost level like 15psi.

Yup.

Butttt, On the AIC, you can turn it off if you load a map with all zeroes. Which requires you to run the data cable into the glove box to make this a convenient option (that’s how I have it).

I spoke to Split Second a long time ago and they said you you put a switch for the AIC as well.

 

[N54Wagon]

Sorry to revive an older thread does anyone have any new updates on the reflex vs jb4 pi? I’m trying to get one and can’t decide which although I do have a jb4 itself already