Hello, I have recently read into "injector dynamics" from this website (http://www.yawpower.com/injectordynamics.html), and I was wondering if my e11v2 has all the features to take advantage of getting all the injector data?

The Haltech website says this :
CORRECTION MAPS--
FUEL Barometric – 32 points
Cold Start Prime - 32 points
Coolant Temperature Enrichment - (2D - 32 points) (3D – 256 points)
Air Temperature Adjustment - 32 points
Battery Voltage Correction - 32 points
Closed Throttle (selectable) - 32 points
Full Throttle (selectable) - 32 points
Post Start -32 points
Throttle Pump Enrich -32 points
Throttle Pump Sustain -32 points
Throttle Pump Decay -32 points
Throttle Pump Temp -32 points
End of injection – 32 points
Staged Injection Angle Split Map – 32 points
Staged Injection Map – 32 points
Individual Cylinder Trimming +/- 12.5%
IGNITION Crank Advance - 32 points
Coolant Temperature Advance/Retard - 32 points
Air Temperature Advance/Retard - (2D - 32 points) (3D – 256 points)
Individual Cylinder Trimming +/- 10°

Is that all I will need to take full advantage of getting the injector information or does the motec have some more special things?

I know the he really likes the motec ECUs, but hopefully the e11v2 will have the features also, they seem really nice.

Thanks
~Tweak

 

The dead band compensation is the Battery Voltage Compensation table. In addition you also have over-all individual injector trims. Haltechs only have a 2D table and to take full advantage of the info that Paul provides you need a 3D comp. map and also 3D injector trims. That is not to say that the info is invalid, just that the info is very comprehensive.

Ryan

 

Sounds like they are trying to advertise their service (inj. flow testing) and products (Motec) more than anything. They are making a mountain out of a mole hill, if the "deadband" is close in a 2d map you should not see much change through other variables.

 

"Yes, the Haltech allows you to properly define injector dead time and gives you individual cylinder trim capability. The only problem is if you are running staged injection as you would on a Mazda rotary, the Haltech only allows you to define dead times for the injectors as a group. In this case, we average the values so that the dead times are correct when all injectors are firing."

So, now I wonder if the groups are setup as primary as a group and secondary as a group or each rotor (1 primary and 1 secondary) as a set. I hope it is primary and secondary as groups, I could see dead time for a 550 being quite different than a 1600. Looks like I will be stuck sending him more than just 2 of each injector so we can find the two that best match for each. (if that is how it works)

I am not going to be doing the final tuning, but I would like to get as many things set in the haltech to get it running as good as possible before Steve Kan tunes it in a few months.

Fritts, thank you, I wish I had some time to make a temp setup to boot up my e11v2 and see what the program looks like. I don't really have any clue what all the features are other than what it says in the manual.

Moremazda, thank you also.

 

E11 and E8 injector trims are INDIVIDUAL, the below info talking about groups is probably pertinent to the E6, or possibly to older firmware.

 

Awesome, thanks slo! By chance does the E11 and E8 have 3d graphs too or is it still 2d? Yeah, I am definitly going to be getting my injectors checked then, I REALLY want to get my setup right this time.

Thanks.

 

The only down side to the new haltech injector trims is that they are gross trims. Meaning that if you have two 750's that have a flow difference of say 5% at the duty cycles seen at idle but at the duty cycles seen in the upper rpm range they are equal, or the flow difference is flipped, the 5% correction that you input at idle just came back on the other injector when the engine is operating in the upper rpm range.

Now for most enthusiasts the benefits of this feature are not very significant, since most enthusiasts are not pushing things to the very ragged edge. Now if you want to hang things on that very steep and expensive edge this kind of feature actually becomes crucial.

 

Well, it is not really that I am going to be pushing anything to the edge. I am going to be around 12-14 psi, have meth injection for safety on a T04E 13b-re, the problem is, that this is my last build. I am trying to get everything checked off and as good as possible, nothing can be flakey. I don't want to have to worry about anything, so I am going overboard on things such as fuel, ignition, and tune. I already have a fuel surge tank, extra pumps, Aeromotive FPR, dual digital EGT, and so on for an example. At this point, getting the settings set as correct as possible in the haltech just sounds like a great idea. If this engine goes, I am done, I can't do rotary engines any more. I can't afford the parts and time. Needless to say I am trying my hardest to get this one right, as I LOVE (am addicted to) the boosted 13b.

I know that even the best made, best tuned, best everything engine can still blow, but I am going to give it my best shot.

 

Trims yes, but he's talkign about the dead time values. There's only one 2d map for dead time compensation in the Haltech.

My E6X also has individual injector trims