Holley EFI Users, Step Inside Please

[Derekk]

SDMAN - There is a parameter than can be enabled in the transmission control ICF. When this is enabled, the auto function is disabled, leaving you full manual control. When enabled, it creates an input. Connect the wire to a switch that can turn on/off. Pretty easy to set up.



SShep71 - At this time, we have not released a TBI assembly that has been blow thru tested. Terminator EFI was developed to offer the end user a great way to convert from carburetion. The injectors that are included can support 600HP in naturally aspirated form. If someone is making 500HP or less, I feel you can make the Terminator work. Anything over that, and the end user should be looking at a MPFI system. In conclusion, we do not offer a TBI blow thru injection to support big power at this time. I will also state, that support for the late model HEMI, and Ford Modular Engines are at the top of priorities.

[carbuff]

Derek,

I thought I understood how to make this work, but apparently I was wrong. I could use some help!

I'm trying to generate my own fan control signals. I'm doing this because I want to force the fans on when the AC is on. I use 1 input for the AC Kick function, and I'm using that signal, combined with some others, to generate an AC Compressor Enable output. That works great.

What I cannot do is combine the AC Kick input with the CTS levels to generate a fan enable. In the Configuration screen for the Outputs, I want to select the AC Kick as a switched input trigger, then use the CTS as a Sensor Input Trigger. As best I can tell, it seems to require BOTH of those to be active to generate an active output. What I want is EITHER of them to be active to generate the active output.

Is there a different way to do this which I'm missing? I cannot use the built in Basic I/O Fan controls, as those would be Linked Outputs, which also require all conditions to be met for the fans to be running. When I start my car, and it's hot outside, I want the fans running immediately to pull air across the condensor, even if the CTS isn't at the fan enable temps.

Suggestions? Preferrably one that doesn't require wiring changes? :-)

Thanx!

[Derekk]

Derek,

I thought I understood how to make this work, but apparently I was wrong. I could use some help!

I'm trying to generate my own fan control signals. I'm doing this because I want to force the fans on when the AC is on. I use 1 input for the AC Kick function, and I'm using that signal, combined with some others, to generate an AC Compressor Enable output. That works great.

What I cannot do is combine the AC Kick input with the CTS levels to generate a fan enable. In the Configuration screen for the Outputs, I want to select the AC Kick as a switched input trigger, then use the CTS as a Sensor Input Trigger. As best I can tell, it seems to require BOTH of those to be active to generate an active output. What I want is EITHER of them to be active to generate the active output.

Is there a different way to do this which I'm missing? I cannot use the built in Basic I/O Fan controls, as those would be Linked Outputs, which also require all conditions to be met for the fans to be running. When I start my car, and it's hot outside, I want the fans running immediately to pull air across the condensor, even if the CTS isn't at the fan enable temps.

Suggestions? Preferrably one that doesn't require wiring changes? :-)

Thanx!

Are you wanting the fans to come on anytime the A/C is enabled, regardless of the CTS settings? Are you also wanting the fans to come on at a preset temp when the A/C is not activated?

[carbuff]

Are you wanting the fans to come on anytime the A/C is enabled, regardless of the CTS settings?

Yes

Are you also wanting the fans to come on at a preset temp when the A/C is not activated?

Yes

Those are exactly the 2 scenarios which I am trying to achieve...

[hifi875]

I have the same issue. I just programmed my fan 1 to come on at 195 and fan 2 to come on at 210. Chances are that when you turn the a/c on the engine temperature will be warm anyway. I just put 2900 miles on my terminator system and ran the air everyday all day with no issues.

[carbuff]

I'm sure that would probably work, but it seems like I should be able to do this exactly the way I want. If I cannot do it in the ECU, I will wire the AC request signal into the FAN relays, but I'd really rather the ECU control it!

[SShep71]

Derek,
I do not plan on pushing past 550 hp. The injectors are listed as being 80Lb injectors, are they replaceable to accomodate a more adequate fuel system? If they are will the software be able to work effectively with the new injectors? I forgot to mention that this will be for a pontiac engine. I looked into the holley MPFI systems but I was never given clear information as to wether or not the MPFI system would work with the pontiac engine. I had looked into the 550-501 retrofit kit but like I said, I never got a solid response if it would work well with a blown through application.

[Derekk]

I hope this helps. - Derek

[carbuff]

Derek,

Actually, I don't think that helps... I don't think the wiring of those 2 relays is correct. The diagram which I show below I think would solve my problem (it's logically different than yours), but my point was that I hoped to do this using the ECU, since I've already wrapped up my wiring.

Is there no way for me to tell the ECU to generate an output which is logically just an OR of either the (CTS > my selected temperature) OR the AC Kick Input? It seems that it's requiring both to be active instead of either for my output to work...

[sccacuda]

Derek,

Actually, I don't think that helps... I don't think the wiring of those 2 relays is correct. The diagram which I show below I think would solve my problem (it's logically different than yours), but my point was that I hoped to do this using the ECU, since I've already wrapped up my wiring.

Is there no way for me to tell the ECU to generate an output which is logically just an OR of either the (CTS > my selected temperature) OR the AC Kick Input? It seems that it's requiring both to be active instead of either for my output to work...

Both diagrams achieve the same thing. I personally prefer Derek's because you are using the NO and NC contacts of relay #2. If one relay fails, you'd still have fan from a/c or temp. If you lose a relay in yours, neither input works. Just my .02.

[carbuff]

Both diagrams achieve the same thing. I personally prefer Derek's because you are using the NO and NC contacts of relay #2. If one relay fails, you'd still have fan from a/c or temp. If you lose a relay in yours, neither input works. Just my .02.

I went back through it again, and I now see how Derek's works, and I agree with you. I missed something the first time, and couldn't come up with why it would work. I think I was looking at the second relay (controlled by the ECU) backwards.

I rewired mine last night, and I finally have it all working now. Phew!

Now for some tuning! I'm sure I'll have more questions in that area soon... And I'll agree with the others' sentiments. It's always appreciated with companies get out and offer support in an environment like this!

[Derekk]

No way for the ecu to handle the chore in the fashion you request.

[James OLC]

I just wanted to take a quick moment to thank Derek and Holley for taking the time to monitor this thread and provided timely tech assistance and advice directly on the forum. There aren't a lot of manufacturers who take the time to be as responsive as Derek has been - it's great to see.

I'll be switching the OneLapCamaro over to Holley's Dominator EFI as soon as we get the new engine in place and look forward to bothering Derek on a regular basis as we get things set up!

[Derekk]

I just wanted to take a quick moment to thank Derek and Holley for taking the time to monitor this thread and provided timely tech assistance and advice directly on the forum. There aren't a lot of manufacturers who take the time to be as responsive as Derek has been - it's great to see.

I'll be switching the OneLapCamaro over to Holley's Dominator EFI as soon as we get the new engine in place and look forward to bothering Derek on a regular basis as we get things set up!

Thanks for the compliments, and we are striving to be a leader in EFI on many levels. Customer/Technical service is one of the largest priorities. Feel free to bother me anytime

[wadem]

Derek is an awesome guy for sure and passionate about what he does,something rare in this industry these days.Next time im back up your way Derek we need to meet back up again and put down some beer at the bar,hopefully it wont be snowing like the last time when me and Bob was there

[Derekk]

Derek is an awesome guy for sure and passionate about what he does,something rare in this industry these days.Next time im back up your way Derek we need to meet back up again and put down some beer at the bar,hopefully it wont be snowing like the last time when me and Bob was there

For sure we need to throw down a little beer. Not sure what Bob has said about me, but I try to do everything to the best of my ability. A customers car is treated as my own. If you want 1/2 As&ed work, I don't have time to work for you, or assist. That simple. The efi components are delicate, and require professional installations. You guys been racing any? I've been seeing pics of the shop stuffed full of cars lol.

[wadem]

For sure we need to throw down a little beer. Not sure what Bob has said about me, but I try to do everything to the best of my ability. A customers car is treated as my own. If you want 1/2 As&ed work, I don't have time to work for you, or assist. That simple. The efi components are delicate, and require professional installations. You guys been racing any? I've been seeing pics of the shop stuffed full of cars lol.

Bob honestly says nothing but good about you,i know if you ever move to Ga you dont have to look for employment,lol.And yes the shop is very busy right now both with tuning and installs.keep up the good work man and keep me posted on this EFI system as i am kinda interested in getting one for my car.

As far as racing goes we have been down making some updates to bobs car but are planning on running bowling green nmca i think,and im going to try to come up for ls fest and possibly drag week to watch in september

[Kevin Grimes]

So this is my set up the Stealth EFI, This 383 is built around 500 HP 500+ tq. It will be able to keep up as advertised?

[Derekk]

Wade, If I ever get full custody of my step son, we will probably be moving south. Just can't do it at this time. When you are ready for the Terminator EFI, call me. I'll see what we can do.

Kevin, you should be fine with the system. Let me know if you have any issues.

[James OLC]

Derek - probably a dumb question but is there a "preferable" IAC and/or TPS for use the the Dominator? We'll be using a Holley 112-576 90 mm Throttle Body and I figured it would be best to ask before assuming and buying the first ones that I find.
Thanks
James