ls1CANTU

iTrader: (9)

Any performance shops tune the Holley EFI system? Can it be interfaced with stock harness to make stock gauges work?

LSX Power Tuning

iTrader: (4)

We have and tune with Holley, BS3, SCT, HP Tuners, & EFI Live. Depending on the setup we prefer to put the setup on a load bearing dyno we have in Bryan then go to track if needed. Not every setup requires going to the track.
I dont know about running stock gauges with the holley system, havent seen in person with stock gauges but that doesnt mean you cant do it.

68 SS

iTrader: (23)

Al the info I have seen says not to try and piggyback the gauges with the Holley system, I would hate to burn up the ECU trying to save a few bucks on gauges. The Holley gauges are pretty sweet and you can configure them to any output you want so is not like you are limited to one gauge when you purchase them.

Moore Racecraft

Holley ECUs were not designed to run factory gauges. They do offer a basic tach output signal..aside from that their gauges or Touch LCD are your best options.

ls1CANTU

iTrader: (9)

Thanks. I don't mind going with aftermarket gauges but If I could keep my stock gauges, that would of been nice. I like the stock look.

87silverbullet

iTrader: (11)

I haven't read up much on the Holley HP system but does it control A/C and cooling fan?

dj94gt

iTrader: (1)

You can control 2 cooling fans based off coolant temp. As for A/C control, that continues to be through the factory switch's. There is a momentary IAC bump that can be configured for A/C equipped vehicles.

87silverbullet

iTrader: (11)

So that means I would have to keep the factory pcm operational in my car because the A/C works off the command of the PCM.

So 1 computer to control the accessories and 1 computer to control the drivetrain?

LSX Power Tuning

iTrader: (4)

You can run the ac without the factory pcm with alittle creative wiring.

bmf5150

Very happy with my Holley efi

87silverbullet

iTrader: (11)

Yeah i know how to do that but with the factory pcm all of that is integrated with the cooling fan and the IAC bump.

Would of it been really that hard to ask for Holley to make it plug and play like a factory system but with better parameters?

Are there any that do A/C control capability. I know FAST has it in its XFI 2.0

I like the Holley system very much and what it can do but when I spend this kind of money on an ECU I want my cake and eat it too.

Sorry for the hijack OP. I'll go create my own thread.

LS1PUNK

iTrader: (5)

Ive talked with Joe Honeycutt @ Kp Racing and he has tuned setups running the Holley.