Thread: Haltec V.S Pro-efi

Quote: Originally Posted by rcdash The true definition of a "piggyback" should be one that takes a stock ECU signal, modifies it, and sends it along. In this scenario the aftermarket EMS is dependent on the stock ECU for the source data. Garbage in, garbage out though; hence the poor rep that "true piggybacks" have. The aftermarket EMS systems that offer completely independent (de novo) throttle, fuel, timing, and cam...

Thats the same way I feel about the Haltech. Competent tuners close by play the final role, just like I said in post #2. I would love to see how it all ties together when you are completed as the ProEFI has some great features.

Quote: Originally Posted by SoundPerformance I have the DBW working on a Z right now! Having DBW I think would be helpful to have in the EMS for idle stability (without having to do copy through for timing) and for not having to employ work arounds for the VDC cutting in with traction control (tied into the brake lamp signal, yaw sensor, etc) when on the track. On the other hand, I like having the stock VDC and the TCS active while daily...

Quote: Originally Posted by IslandZavage For those of you that have the PROEFI, Do you have the 48 or the 128 (aside from price)? What was the deciding factor for your selection? I have the 48 PIN unit. However, for me the factor unfortunately was price. I would love to have the additional features of the 128 PIN unit for track use and hope to upgrade to it eventually. But I experienced some financial hardships after I got scammed by SGP on...

Quote: Originally Posted by rcdash All are relatively small companies and the products have proven themselves. Based on feature set alone, I would consider the ViPEC 88 at this point as well. From what I can tell, the Haltech does have the largest development team as well as great USA support by Injected Performance. The updates have been impressive and v1.06 is no exception. I will only speak to deficiencies with the system I know well, the...

I can't comment on the haltech, Vi Pec, or HKS ecu's on the VQ platform but I can say this. I run one of the largest fuel systems on a street car on this forum (3 walbro's in tank, garden hose feed lol, 1000cc injectors on large rails)...and I'm going to larger injectors over winter (for even more room on E85)..... The Pro-EFI 48 controls everything, and the car drives just like stock. I don't have any stumbles,...

Motec has it too ^, via a separate add on module. I looked heavily into it when doing the ITB project, as I was going to have it controlled via the drive by wire, but ended up not going ahead

i undersatnad what youa re saying but its all semantics, dont loose focus on the technical side...its standalone because what it controls it doest takes over it completly, the fact that the stock ecu is still there is because there is no reason to reinvent the wheel on simple things liek accessories control or some other drivability settings already stablished by nissan that took lot of money and research ...and that make no difference in...

From what Larry just said and from what was mentioned earlier, a big concern for many of us and especially me is the OBDII being retained to pass inspection. So the 128 was said earlier to eliminate the OBDII and Larry just stated that it will retain the OBDII. Will the 128 operate as a piggyback with all the bells and whistles and still allow people to pass inspections with the OBDII system? Second of all these features that pro-efi has are...

Quote: Originally Posted by rcdash Having DBW I think would be helpful to have in the EMS for idle stability (without having to do copy through for timing) and for not having to employ work arounds for the VDC cutting in with traction control (tied into the brake lamp signal, yaw sensor, etc) when on the track. On the other hand, I like having the stock VDC and the TCS active while daily driving, so I don't know how much DBW really is...