holley dominator ecu questions
03-05-2014, 10:48 PM
#1
Staging Lane
Thread Starter
holley dominator ecu questions okay so i have a 92 fox and am swapping a lq9 into it with a glide or th depends on weight i guess, any way, is it a straight plug and play or does it plug into the stock ecu and control it through there, im just confused with that. does it completely wipe out the stock ecu?
03-05-2014, 11:18 PM
#3
Staging Lane
Thread Starter
03-06-2014, 08:20 AM
#4
Holley replaces stock ECU. Although I havent used it yet, based on the many threads Ive seen others raving about ease and quality it sure seems the easiest route for swaps right now, especially big power stuff. Holley has built a brilliant reputation for excellent tech support. Plus the interface seems to be laid out intuitively and it comes loaded with base tunes pre loaded to start from. Seems to be the most user friendly ECU for guys wanting to tune their own builds, I see few complaints.
Or you can repin a stock harness and use a stock ECU with HPtuners or EFiLive and achieve pretty much the same end results, albeit it is quite a bit more complex to work through. Mostly due to whittling through a stock harness to delete what you dont need, and repin the ECU to match. Tuning wise, understanding the jargon used within the stock ECU and the tuning suites interface is not so easy to decipher the acronyms and terminology into laymans terms. But the sky is the limit here, lots can be done and done well if your ambitious.
The cost of tuning suite kind of evens things out.
If your unsure and want ease and quality? Holley gets my vote
Or you can repin a stock harness and use a stock ECU with HPtuners or EFiLive and achieve pretty much the same end results, albeit it is quite a bit more complex to work through. Mostly due to whittling through a stock harness to delete what you dont need, and repin the ECU to match. Tuning wise, understanding the jargon used within the stock ECU and the tuning suites interface is not so easy to decipher the acronyms and terminology into laymans terms. But the sky is the limit here, lots can be done and done well if your ambitious.
The cost of tuning suite kind of evens things out.
If your unsure and want ease and quality? Holley gets my vote
03-06-2014, 01:55 PM
#5
Holley replaces stock ECU. Although I havent used it yet, based on the many threads Ive seen others raving about ease and quality it sure seems the easiest route for swaps right now, especially big power stuff. Holley has built a brilliant reputation for excellent tech support. Plus the interface seems to be laid out intuitively and it comes loaded with base tunes pre loaded to start from. Seems to be the most user friendly ECU for guys wanting to tune their own builds, I see few complaints. Or you can repin a stock harness and use a stock ECU with HPtuners or EFiLive and achieve pretty much the same end results, albeit it is quite a bit more complex to work through. Mostly due to whittling through a stock harness to delete what you dont need, and repin the ECU to match. Tuning wise, understanding the jargon used within the stock ECU and the tuning suites interface is not so easy to decipher the acronyms and terminology into laymans terms. But the sky is the limit here, lots can be done and done well if your ambitious. The cost of tuning suite kind of evens things out. If your unsure and want ease and quality? Holley gets my vote
03-07-2014, 02:53 AM
#6
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The dominator does not come with a harness ECU ONLY, so you have to pick the pieces yourself not a biggie though.
I would say if ur planning on getting a race computer dont and get the dominator ecu , it has plenty of inputs an outputs.
For a budget minded build i would go with the Holley HP Efi its much lower priced , around 1500 for ECU and harness for Ls Engines, and can do most of what the Dominator can minus Electric trans controller, drive by wire , and 2 widebands.
I would say if ur planning on getting a race computer dont and get the dominator ecu , it has plenty of inputs an outputs.
For a budget minded build i would go with the Holley HP Efi its much lower priced , around 1500 for ECU and harness for Ls Engines, and can do most of what the Dominator can minus Electric trans controller, drive by wire , and 2 widebands.
03-09-2014, 11:22 PM
#7
Staging Lane
Thread Starter
Holley replaces stock ECU. Although I havent used it yet, based on the many threads Ive seen others raving about ease and quality it sure seems the easiest route for swaps right now, especially big power stuff. Holley has built a brilliant reputation for excellent tech support. Plus the interface seems to be laid out intuitively and it comes loaded with base tunes pre loaded to start from. Seems to be the most user friendly ECU for guys wanting to tune their own builds, I see few complaints.
Or you can repin a stock harness and use a stock ECU with HPtuners or EFiLive and achieve pretty much the same end results, albeit it is quite a bit more complex to work through. Mostly due to whittling through a stock harness to delete what you dont need, and repin the ECU to match. Tuning wise, understanding the jargon used within the stock ECU and the tuning suites interface is not so easy to decipher the acronyms and terminology into laymans terms. But the sky is the limit here, lots can be done and done well if your ambitious.
The cost of tuning suite kind of evens things out.
If your unsure and want ease and quality? Holley gets my vote
Or you can repin a stock harness and use a stock ECU with HPtuners or EFiLive and achieve pretty much the same end results, albeit it is quite a bit more complex to work through. Mostly due to whittling through a stock harness to delete what you dont need, and repin the ECU to match. Tuning wise, understanding the jargon used within the stock ECU and the tuning suites interface is not so easy to decipher the acronyms and terminology into laymans terms. But the sky is the limit here, lots can be done and done well if your ambitious.
The cost of tuning suite kind of evens things out.
If your unsure and want ease and quality? Holley gets my vote
The dominator does not come with a harness ECU ONLY, so you have to pick the pieces yourself not a biggie though.
I would say if ur planning on getting a race computer dont and get the dominator ecu , it has plenty of inputs an outputs.
For a budget minded build i would go with the Holley HP Efi its much lower priced , around 1500 for ECU and harness for Ls Engines, and can do most of what the Dominator can minus Electric trans controller, drive by wire , and 2 widebands.
I would say if ur planning on getting a race computer dont and get the dominator ecu , it has plenty of inputs an outputs.
For a budget minded build i would go with the Holley HP Efi its much lower priced , around 1500 for ECU and harness for Ls Engines, and can do most of what the Dominator can minus Electric trans controller, drive by wire , and 2 widebands.
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03-13-2014, 10:19 AM
#8
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yes the harnesses you need will have to be purchased separately. It'll be about $500 extra for the harnesses you will need/want more than likely but from the reading I have done it is MORE THAN WORTH IT.
I'm gunna be going that route on my foxbody also. I was just going to buy a PSI harness and use a stock ecu but after thinking about it pretty hard I'm not gunna spend 600 on the harness, 500 for a tune and a couple hundred for a stock ecu. Then still need to buy a progressive nitrous controller etc. I'de have $1,500 in all that stuff. $1,000 more and I can have it all and still have the option to do the Davis TC box.
I'm gunna be going that route on my foxbody also. I was just going to buy a PSI harness and use a stock ecu but after thinking about it pretty hard I'm not gunna spend 600 on the harness, 500 for a tune and a couple hundred for a stock ecu. Then still need to buy a progressive nitrous controller etc. I'de have $1,500 in all that stuff. $1,000 more and I can have it all and still have the option to do the Davis TC box.
03-13-2014, 01:19 PM
#11
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So aside from the trans control, what is it that justifies the cost over the holley HP? I am looking at both for my LM7 turbo build. Sell me on the advantage of the extra $1000 cost. Thanks all.
03-13-2014, 05:02 PM
#12
- Drive-by-wire conrols. Up to two DBY TB's.
- 4 stage progressive nitrous control
- Turbo boost control
- Water/methanol injection control
- Data aquisition and control with massive amounts of programmable inputs and outputs
- Internal data logging with 2GB memory
- Self tuning fuel table
- Store and change between 4 calibrations
- Individual fuel and spark control
- Controls optional 5.7" LCD touchscreen
Just to name a few features...
http://www.holley.com/types/HP%20EFI%20ECU.asp
https://www.holley.com/types/Dominator_EFI_-_ECU.asp
Last edited by SSSTANG#1; 03-13-2014 at 08:14 PM.
03-13-2014, 07:35 PM
#14
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HP and Dominator both have boost controller config.
https://www.holley.com/data/TechServ...ifferences.pdf
https://www.holley.com/data/TechServ...ifferences.pdf
