Holley HP EFI Controller
07-27-2013, 08:02 AM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Holley HP EFI Controller
... SOLD ... SOLD ... an unused Holley HP EFI ECU only ... this was a spare for a race team that switched to a Holley Dominator Controller ... harnesses are available for just about any EFI set-up that you could imagine ... the HP has a self learning capability that minimizes the need for laptop tuning ...... $750 shipped .............
Last edited by C409; 09-03-2013 at 02:49 PM. Reason: price change
07-30-2013, 06:33 AM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
...... Still available .................
07-30-2013, 10:34 AM
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Car: 1991 z28
Engine: sbc383,chad speier222cc heads
Transmission: built 700r4 Yank 3600 stall
Axle/Gears: dana 44 3.73 gears
Re: Holley HP EFI Controller
500$ shipped ???
07-30-2013, 07:44 PM
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Car: 1991 z28
Engine: sbc383,chad speier222cc heads
Transmission: built 700r4 Yank 3600 stall
Axle/Gears: dana 44 3.73 gears
Re: Holley HP EFI Controller
Had to try lol no one else was pm'ed...
08-01-2013, 04:52 PM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
............ Still available ................
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08-09-2013, 07:26 AM
#9
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
................ Weekend bump .................
08-12-2013, 06:54 AM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
..... Bump it ... How about $750 shipped ? ..............
08-13-2013, 09:17 PM
#11
08-14-2013, 06:29 AM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
..... No , unfortunately it will not ... Holley incorporated some additional features into the HP ... wide band O2S for one ... that required an all new harness configuration ... the Avenger , HP , and Dominator all share the same harnesses which makes it easy to upgrade from the HP ... the harnesses needed for a typical MPFI set-up ( HSR or TPI ) will cost around $500 from a place like Summit or Jegs , there are some E-bay vendors that will give you a package deal ............
08-14-2013, 12:44 PM
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Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Holley HP EFI Controller
You can piece together the harness for your particular application on Amazon cheaper than Summit/Jegs or ebay if you invest a few hours online figuring out part numbers. That's what I did for the Avenger retrofit going on my car. 
GLWS
GLWS
08-14-2013, 12:56 PM
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: Holley HP EFI Controller
This is a great system and great price considering its about $950 new just for the ecu.
I would buy it as a replacement for my HP ECU as my usb connector broke and I have had to resort to using an SD card in my handheld for tuning
Right now, replacing the ECU is not my priority.
I would buy it as a replacement for my HP ECU as my usb connector broke and I have had to resort to using an SD card in my handheld for tuning
Right now, replacing the ECU is not my priority.
08-16-2013, 11:08 AM
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Car: 88 Iroc Z
Engine: L98 350
Transmission: 700 R4
Re: Holley HP EFI Controller
Does any know the parts list to make this the same as a complete 550-601 kit? I'm curious how much id save buying it like this versus the whole kit. Does ur ecu include a controller?
08-16-2013, 05:18 PM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
To make a 550-601 kit you need ... 554-113 ECU ... 558-101 TPI/SR harness ... 558-200 V8 injector harness ... 558-304 HEI ignition harness ... 558-308 Main Power harness ... 558-409 USB Cable (you probably have several of these already) ... 554-101 Bosch Wideband O2S ... GM MAP , IAT , ECT , and IAC ( you can use the ones you have on your TPI set-up ) ... the touch screen is not included with the 550-601 kit , but is available as 553-103 ... you will need a laptop to initiate your base tune and establish some operational parameters ... once you're up and running the Holley HP will automatically adjust fuel maps to your pre-set AFR targets ........ closed loop learning so to speak ..........
08-22-2013, 04:22 PM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
............. Still available .................
08-26-2013, 07:22 AM
#18
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
........... T T T ...................................
09-02-2013, 07:20 PM
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Car: '87 Vette C4
Engine: 400 + .040 = 409 ci
Transmission: 700R4 built
Axle/Gears: Dana 44 w/3.42's
Re: Holley HP EFI Controller
.......... Bump it up ...........
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