Holley hp and dominator efi ecu for LSX
#101
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Check amazon, the prices on these fluctuate from time to time, sometimes by a few hundred bucks.
I've searched but so far haven't found an answer for this - Is the MAT on the Holley harness the same as IAT? If so can I just wire my old IAT sensor into the holley harness? Using the 5 wire truck maf/ iat combo.
I've searched but so far haven't found an answer for this - Is the MAT on the Holley harness the same as IAT? If so can I just wire my old IAT sensor into the holley harness? Using the 5 wire truck maf/ iat combo.
#103
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Join Date: Dec 2011
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The MSD Atomic is more for a hod rod swapping to a simple EFI set up. More money, no boost or nitrous controller and having to set it all up through a small hand held I'd look elsewhere.
#105
What if you are wanting to run a 4l80e behind it? That is a pretty big price jump for the dominator and all the harnesses. Wouldnt you still need the ecu and hptuners or some software to control the trany if running the hp?
#106
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couple of good options for transmission controllers if you are using an HP ECU
using a Holley in conjunction with a stock ECU, is not one of them...the stock ECU doesnt work as a stand alone trans controller no matter what you do to it... It just sucks... you might as well not even invest in a Holley unit if you are going to try to keep the stock ECU for Transmission control
Powertrain Control Solutions "TCM-2000" (formerly the TCI red box trans controller)
Powertrain Control Solutions "Simple-Shift"
TCI "EZ-TCU"
US Shift "Quick-1"
All Great Stand alone controllers
theres also the option of a Full Manual Valve Body Automatic, or a Manual Transmission
I use the TCM-2000
I also bought one of PCS's Gear Display Gauges so I can see what gear I am in when I put the trans in manual mode with bump up and bump down shift buttons(I pretty much only use this mode when roll racing.. put it manually in the gear I want, nail the throttle, flip it back to auto mode after I mash the throttle)
#107
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also... the consideration for the HP vs the Dominator... isnt necessarily for the Transmission controls...
I use a TCI 6x... I owned it before I bought the Dominator...
It requires the PCS Trans Controller to be able to control all 6 gears
a 4l80 controller will still work with it, but it would only have 1st, 3rd, 5th, and 6th gear
My decision for the Dominator was because I needed more than the 4 inputs and outputs the HP offered... I dont even use the Transmission controls...
I do take my Trans Signals into the Dominator for logging reasons....but thats about it..LOL
I use a TCI 6x... I owned it before I bought the Dominator...
It requires the PCS Trans Controller to be able to control all 6 gears
a 4l80 controller will still work with it, but it would only have 1st, 3rd, 5th, and 6th gear
My decision for the Dominator was because I needed more than the 4 inputs and outputs the HP offered... I dont even use the Transmission controls...
I do take my Trans Signals into the Dominator for logging reasons....but thats about it..LOL
#110
TECH Senior Member
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For anyone that is looking to run their fans via PWM, both the HP and Dominator can be configured to do that. I used a C6 Corvette fan controller and a C6 fan, but other fans any a solid state relay will also work.
Here is how I did it on my Cougar swap:
Andrew
Here is how I did it on my Cougar swap:
Andrew
#111
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I am also using the Dominator ECU to actuate dual DBW throttle bodies.
Engine is a LH8 5.3L with the GM ASA cam and upgraded valves springs, but otherwise stock.
Andrew
Engine is a LH8 5.3L with the GM ASA cam and upgraded valves springs, but otherwise stock.
Andrew