DJetronic Limitations Options

[Teknon]

It's probably been said before many times. So if there is a thread you can lead me too all well and good. (IMG:style_emoticons/default/confused24.gif)

I am having a 2270 built and was told the DJet FI will not be enough to handle the fuel requirement of this engine. I am not interested in a mechanical carburetor at all. And have no room for that discussion. (IMG:style_emoticons/default/dead horse.gif)

Why can’t the DJet keep up? Can it be tweaked or larger injectors installed? (IMG:style_emoticons/default/WTF.gif)

“Chicken Little” type members need not answer, as I don’t need someone’s emotional opinion. What I would like is a down to earth technical understanding. (IMG:style_emoticons/default/yappin.gif)

I am surprised no one made a daughter board to augment the existing ECU to test oxygen or whatever would be pertinent.


Thanks for your time and experience.

Joe D2

[Demick]

I agree with James with regard to the sizing of the intake setup.

I also agree that the fuel delivery system is not a limitation as far as being able to deliver enough fuel for the 2270 or larger.

But d-jet requires a mild cam to function properly because it is dependent on manifold pressure. An agressive cam disrupts this.

So you would need to use a very mild cam with your 2270. But why are you building a 2270? More power right? So why would you cripple your motor with a mild cam? You wouldn't. Which is why d-jet is a bad choice.

It's like putting a 3.2L six into your car but keeping the stock 165 width tires. Sure, you can do it, but it makes no sense.

Demick

[Bleyseng]

I agree with James with regard to the sizing of the intake setup.

I also agree that the fuel delivery system is not a limitation as far as being able to deliver enough fuel for the 2270 or larger.

But d-jet requires a mild cam to function properly because it is dependent on manifold pressure. An agressive cam disrupts this.

So you would need to use a very mild cam with your 2270. But why are you building a 2270? More power right? So why would you cripple your motor with a mild cam? You wouldn't. Which is why d-jet is a bad choice.

It's like putting a 3.2L six into your car but keeping the stock 165 width tires. Sure, you can do it, but it makes no sense.

Demick

I agree with Demick (some day I got to sit down with you and BS about djet)
So far DaveHunts 2.0l intake setup hasn't proven to be too small for his 2270. Its been said by "experts" that the 2.0l can support up to a 2.4L.

Yes, you can "Make" the Djet work its not the best solution in the long run. Its just too limited in its adjustments (Three!) to really given you the benefits of EFI.
I suggest going to MS, SDS or Haltech to really get modern fuel management.
I play with the Djet just to disprove all the ole myths about it....."Cuts off the fuel at 4500rpms, runs lean, can't provide enough fuel, can't be adjusted etc)"


I have been talking with Dave Hunt to comeup with a MS solution thats plug and play including MAPS for 1911's, 2.0L's,2056's and 2270's. You would just install it and drive it.