angle of injection

Can any one give me any information on how to setup/learn to set up injector angle timing? thanks

Hello!!!

Very interested on this Topic too! To put the topic into context, I'm looking for a new Haltech Elite for my S2000, and in the basemap included, within the Injection System tables, there's one called: Firing Angle BTDC (see screenshot attached).

What are these angles exactly? are these angles the rotation of the crank where the injector pulse starts? If yes, includes also the dead time?? If not, what are they exactly?

Being these values extracted from a base map, I consider that those values are based on the factory injectors... so, what happens with those values when we change injectors to an aftermarket set?

How do I know that this table is correctly set and not causing trouble with the rest of the fueling strategy? and also important, do all ECUs have such tables?.

Sorry for the thousand questions, but really need some input here.

Thanks a lot

Typically they don't do much difference Set them between 360° and 400°

Ideally someone can experiment with the AFR and how it's being affected. But from my experience by default the values are pretty spot on.

Typically they don't do much difference Set them between 360° and 400°

Ideally someone can experiment with the AFR and how it's being affected. But from my experience by default the values are pretty spot on.

Hi Lewis,

just found the Webinar 111, where André explains it, thanks a lot for the clarification anyway!

If I remember correctly, Haltech uses the end of injection angle, but you'll have to confirm. In end of injection timing, the injection start timing is back-calculated based on the pulsewidth and the end of injection timing map.

Injection angle isn't that important on port injection. For direct injection it matters a lot more.