does anybody know which HALTECH ecu can handle 3 stages staged injection?i mean 2primaries,2secondaries and 2 additional for high rpms.i want each group to come alive at different engine speed and load.

 

you would need a haltech E6k or E11 and a F5

i think motec might be able to do it but they cost ALOT!

 

A single Haltech ECU cannot do this.
Neither can a single MoTeC...


-Ted

 

But why dou you need to do this , I am using six injectors which are staged normally , I just connected the additionals in parallel with the existing secondaries and tuned to suit ( the secondarys essentially become one large injector , 2150cc in my case) .

 

what is the impendance of stock TII injectors and gsl_se's too?i believe that high impedance ones called satturated versus the low impedance ones which called peak and hold.am i right?haven't you experienced any problem with the parallel connection?with how many injectors drivers your ecu has?

 

Hmmm, I always thought that if i wanted a 3rd stage, I could wire the injectors in parallel, but have the power for the 3rd stage injectors driven off a relay which is switched by one of the haltech digital or PWM outputs. I never really looked into it fully to see if it was feasable (and you want to make sure the relay is very reliable). Is there anything wrong with this?

 

that sounded good.what exactly type of relay do i need?
is it possible to tune the pwm output on a rpm or load base?

 

Well I think you could use the Staging signal in your PWM outputs or even the Aux fuel pump as the signal. As far as relay goes, i don't know, but a good one I've never tried it, but i thought someone would've done something along those lines. I suppose the haltech probably gives you the accuracy you need, so you don't really need 3 stages. Unless you're dumping ungodly amounts of fuel into your engine