beags86
Eastbound and Down
That's true, but the wiring is shit. It needs a complete rewire regardless.Meh, big battery off switch is all you need
I might as well get it done and out of the way.
That's true, but the wiring is shit. It needs a complete rewire regardless.Meh, big battery off switch is all you need
That's true, but the wiring is shit. It needs a complete rewire regardless.
I might as well get it done and out of the way.
I'm not. I haven't been worried about it for 2-3 years now.....Quit worrying about this thing and get that Chevelle runnin eh
That's true, but the wiring is shit. It needs a complete rewire regardless.
I might as well get it done and out of the way.
I was going through some old threads and thought I’d bump this conversation.https://www.holley.com/products/fuel_systems/fuel_injection/hp_efi/hp_multi-port_kits/parts/550-835
I'll start with this and work up from there. I researched it all before and wrote it down. So I don't recall right now. But I believe I've to upgrade the ECU to control the 4L80E, and the optional touch screen for the dash.
This is going to be completely different then the self tune sniper, this uses the Holley HP ecu.I was going through some old threads and thought I’d bump this conversation.
Heard any feed back on this MPFI system?
I know what was said about the Sniper, but maybe this kit is better
Still seems a bit high priced

I figured you would jump in with some better information. (I was hoping you would at least) as I know you have a running setup. And as I know of, on this site, I think you might be the only one as well. I wasn't aware you could actually set these up as a self tune. But hell what do I know, I haven't even installed my ez-efi I bought 3 years ago yet. (Although thats a different red car type of thing)I agree the Holley HP and Dominator ECUs are setting the standard right now, but the self tuning is just as good or not better as well. Not only would I take the sniper over FITech, actually the Holley HP and Dominator ECUs both have very good self tuning capabilities. They have a seperate fuel table called a "learn table", and you can not only turn it on and off, you can also set separate limits for both enrichment and pulling fuel out in many different increments for both RPM and MAP. Because of this the self tuning is actually way more sophisticated than the self tuning of many others, because of how much control you have over when and where it works and how much.
For example, if you have a large cam with a lot of overlap, it will cause the 02 sensors to see extra oxygen at lower RPMs. Well, you don't have to shut the self learning off, you can shut it off below a certain RPM. And taking it a step further, you can tell it, below a certain RPM, you are only allowed to pull out fuel, not add it. This will prevent the ECU from making the engine pig rich at low RPMs while still allowing it to learn at higher RPMs and pull fuel at lower RPMs if needed. And you haven't even touched the seperate MAP portion of the table.
Also, the learn fuel table is seperate, so you have control over that too. You can delete it all together and just go back to the base table, or you can tell the software to "add" it to the base table and it will become one and then the learn table starts over again. You have complete control, or you can let it do its thing and never touch it, its up to you. I have attached a screen shot of the self learning limit chart as an example. The chart is the same for both closed loop or learning control, they are seperate as well.
View attachment 292036
The timing control is pretty unlimited with both the Holley HP or Dominator ECUs. (As you know, they use the same exact software, the Dominator has a few more connectors for more programmable options, and also adds trans control and/or drive by wire).
Anyway, the timing control is pretty unlimited. You can control anything from an old points distributor to a DIS system and everything in between. I usually go all or nothing. If I am going to go electronic timing control, I'd rather go all out and ditch the distributor.
I actually have mine setup as DIS. I made a custom 36-1 tooth crank target wheel (you can buy these through Holley for most setups), and used an Accel distributor for a 90s TBI I believe that has the cam sensor in it just for phasing. However, this comes with a block off cap and not an actual distributor cap, so it doesn't have a cap or rotor, it just sends a cam sync signal and drives the oil pump.
Here is the GM version:
https://www.eficonnection.com/home/...tor-1x-signal-for-4-3l-v6-sbc-and-bbc-engines
However, it's a lot easier if you have an LS, old small block, or Gen6 big block, because you can use the factory GM cam sync kit that includes a timing cover and cam timing set that has sensors built into it for both cam and crank, such as this...
DIS Conversion Kit
The DIS allows you to have unlimited timing without worrying about rotor phasing, or parts wearing out. Crank triggers also eliminate the error you get from sending the timing through the timing chain and cam and cam distributor gear. The timing is rock solid, way more solid than you ever see without a crank trigger, you notice when you sync the ECU to the actual engine timing with a timing light.
Once you do that conversion kit, you could buy the terminator LS kit (which comes with an HP or Dominator ECU), and plug and play, assuming you get the correct 58x or 24x harness along with the correct injector harness, etc. The ECUs that come with the terminator kits are actually the same exact HP or Dominator ECUs(depending on if you get DBW or trans control), so if the little handheld doesn't have enough options for you, you just plug in your laptop and you have nearly limitless options. And its considerably cheaper than buying the dominator ECU separate.
I can't speak to it as well as Heath can. But I believe he was only talking about the Holley ECMs. I don't know about the factory harness but I wouldn't think the factory harness would work with a holley ecm either.So if I'm reading this right, using that kit and some type of a multi-point injection manifold, it's possible to run a big block off of an LS style pcm and harness?
I can't speak to it as well as Heath can. But I believe he was only talking about the Holley ECMs. I don't know about the factory harness but I wouldn't think the factory harness would work with a holley ecm either.
I don't know what it's worth to ya, and Heath can help you far more then I can. But I do plan on running with coil on plug and a mutiport EFI set up on my engine. (If I ever get it done)Ah, he mentioned using it along with an LS Terminator, I guess I jumped to a conclusion. I can never keep track of the different reluctors and tooth counts, and which uses what.
I'm at a crossroads with it. I really enjoy it the way it is. Fun to drive without having to worry about it. But it's not fast enough to have the stop light to stop light burnout fun that makes me feel like I'm 16 again.Well I'll just continue following along with your thread as I have. Even at the current rate, you are sure to get things done much sooner than me, lol.

I didn't miss it, I said I didn't need more shit.Don’t forget you had a kid too!


