I bought a Holley HP system and it came with the ls harness. What are you using for a ecu
We used the stock ECU/harness with HP Tuners. Dug through the harness removing all the crap I don't need to clean it up to fit the car and setup better (we remove MAF and do a SD setup, delete the secondary O2's and so on). If I remember it left me 5 or 6 wires to connect to the car, the rest plug straight into the PCM and each sensor. Def more painful then Holley setup for sure, that setup is a easy plug-n-play. There is a big price difference though. If you got the money to spend get the Holley. I know of 2 people using it and love it.
I got a bit less than $1700 in the Holley HP system.
That includes:
Ecm
main power harness
Main ls1 24x harness
Holley coils
Holley coils wiring harness
Injector harness
5 bar map sensor
ntk wide band sensor
iat sensor
The harness plugs into all the rest of the factory sensors.
My friend has it on his Buick ta engine. It is the coolest thing since sliced bread. It took 3 passes before the ve table was at zero correction! The data logging is second to none...especially if you get the dominator. I've played with accel, fast and feast xfi, have seen motec, HP tuners, aem, etc.. The software on the Holley is the best laid out IMO. If you got a xfi, you could sell it and get the complete Holley system for what you sell it for.
They were having issues with the stock ls1 coils but that's supposed to be fixed. That's why I went with their coils. It would be even less if you used the stock coils.
I was quoted $2200 for a xfi. I believe that was minus a harness. The fast needs a separate xim box to control the coil packs.
Have you already purchased the EFILIVE??I'm gonna need somebody to help a brotha out with my EFILive that I'm going to use, lol.
just qurious i'm doing a turbo ls swap myself and i too plan on using the holley hp system, what are you guys doing for the rest of the electrical in the car,like the starting system ignition switch, headlights, power windows ect ..................any help would be greatly appreciated thankyou....
yeah I've got it already. I've been using it to try to datalog my other LS1 car. I understand how to load a tune in, but I don't know how to adjust the fuel tables at all.
You don't happen to have a tune for a stock LS1 on 8 psi (procharger) with 42# injectors, do ya?
yes i have the stock body harness still in tack but i sold the engine harness and computer...so im just trying to figure out how to get power to the ignition switch lights ectI'm doing an 86 T.. I am leaving the body wiring alone, except for the dash. [Will be an Autometer array that I make myself.]
The engine and body harnesses are separate plugs at the firewall. I left the body side untouched, and unplugged, & opened the engine harness, to get at the input power wires, [3 red on fuseable links], the purple start wire, and the coil power wire. This allows the stock column, fuse panel, etc, to retain power, ground, and starter w/ the stock key. I used a donor harness for this, [85 El Camino], as the orig harness is uncut, and all stock, including the hard looms. [FOR SALE, BTW!]
I have a stabilized voltage supply, and I've tested this several times. So far, so good.
An ACCURATE wiring schematic is a good thing to have.
i guess im trying to figure out where to add 12volts ....on engine side plug at the firewall...thanksyes i have the stock body harness still in tack but i sold the engine harness and computer...so im just trying to figure out how to get power to the ignition switch lights ect
or would it be easier to find a donor engine harness if so which ones can use....86/87 regal none turbo car?i guess im trying to figure out where to add 12volts ....on engine side plug at the firewall...thanks
Mine came off of an 85 El Camino, V6 car... Works just fine.or would it be easier to find a donor engine harness if so which ones can use....86/87 regal none turbo car?
No tune specifically for that combo. Have you been on the EFILIVE forum? Someone there may help. They don't usually just send tunes, but rather will help you write 1..[Improves the learning curve slope!]
Are you using a custom op system, [COS]? Don't think so
Is the car up and driving? Yes
Have you done any data logging? Not recently
What PCM are you using? Stock 1999 PCM it came with
Who did you buy the system from? Did they provide a base tune? a member here, but the car is from another guy. It came tuned but doesn't run well.
Send me the tune file, and I'll see what I can find. Add in any data logs you may have, too. codymspt@bellsouth.net