Another harness option....
02-27-2008, 11:55 PM
#42
Ok i have one question sorry to hijack, I have the neccecary diagrams, What im trying to figure out....before i convert the harness, because i have the Factory fuse block attached to the PCM and all connections, is how can i utilize it? where would i hook up my ignition wires? Thanks for any help
03-02-2008, 09:47 AM
#44
Staging Lane
iTrader: (1)
Join Date: Oct 2002
Location: Wisconsin
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
Reading the instructions for the LS2 harness it says to run 50psi of fuel pressure. I was planning on using the corvette filter/FPR which sets fuel pressure at 58 psi for my rx7 ls2 conversion....does anyone think that is going to cause any major fueling issues?
I figure it will run a tad rich but I am going to have a couple bolt ons which will increase air flow a little bit.
Either way I am buying this harness, but if that 8psi is going to cause major issues I am going to have to revamp my fuel setup completely to something which cost alot more $$$.
I figure it will run a tad rich but I am going to have a couple bolt ons which will increase air flow a little bit.
Either way I am buying this harness, but if that 8psi is going to cause major issues I am going to have to revamp my fuel setup completely to something which cost alot more $$$.
04-29-2008, 09:49 AM
#48
Staging Lane
iTrader: (1)
Join Date: Oct 2002
Location: Wisconsin
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
Here is a site that sells harnesses for the LS1, but its just the harness. I was going to get one of these until I got a 58x engine.
http://www.larryselectricsite.com/LS1.html
04-29-2008, 10:11 AM
#49
TECH Enthusiast
iTrader: (6)
Join Date: Aug 2006
Location: Atlanta, GA
Posts: 572
Likes: 0
Received 0 Likes
on
0 Posts
Here is a site that sells harnesses for the LS1, but its just the harness. I was going to get one of these until I got a 58x engine.
http://www.larryselectricsite.com/LS1.html
http://www.larryselectricsite.com/LS1.html
Plus I liked the GM perf one better. Came with a puter also.
04-29-2008, 12:15 PM
#50
TECH Resident
http://speartech.com/
http://currentperformance.com/LS2.html
Both have complete LS2 packages with factory computers which can be reprogrammed for when you do any upgrades or changes later on.
The factory GM package comes with a computer that isn't accessible for later tuning.
http://currentperformance.com/LS2.html
Both have complete LS2 packages with factory computers which can be reprogrammed for when you do any upgrades or changes later on.
The factory GM package comes with a computer that isn't accessible for later tuning.
04-29-2008, 03:50 PM
#51
TECH Apprentice
Thread Starter
iTrader: (8)
Join Date: Jan 2004
Location: McKinney, TX.
Posts: 313
Likes: 0
Received 0 Likes
on
0 Posts
http://speartech.com/
http://currentperformance.com/LS2.html
Both have complete LS2 packages with factory computers which can be reprogrammed for when you do any upgrades or changes later on.
The factory GM package comes with a computer that isn't accessible for later tuning.
http://currentperformance.com/LS2.html
Both have complete LS2 packages with factory computers which can be reprogrammed for when you do any upgrades or changes later on.
The factory GM package comes with a computer that isn't accessible for later tuning.
04-29-2008, 03:54 PM
#52
TECH Enthusiast
iTrader: (6)
Join Date: Aug 2006
Location: Atlanta, GA
Posts: 572
Likes: 0
Received 0 Likes
on
0 Posts
So how does your car run? I browsed thru the GMPP website but I cant find anything about using this on an ls1. Could I use the ls2 kit if I swapped to Throttle By Wire?
04-29-2008, 04:47 PM
#53
TECH Apprentice
Thread Starter
iTrader: (8)
Join Date: Jan 2004
Location: McKinney, TX.
Posts: 313
Likes: 0
Received 0 Likes
on
0 Posts
It runs pretty good. I have a FTI Streetsweeper HT cam and the intake/TB has been ported. I have a slight surge/buck at low rpm's under light load, but that's about it. It starts up everytime and it doesn't stall.
04-29-2008, 06:25 PM
#54
TECH Resident
Maybe you had a connection to get that harness kit for $800, but for the average guy to buy it, it is around $1050.00.
That's nice that it comes with the sensors, but when I am already dropping a bunch of money on an install, I'd rather have a custom tune for my application and a custom made harness with a more compact fuse block then that big honkin thing they supply on the GM one.
Also, not sure when the last time you checked was... but I don't think CPW is over $1300 for their T56 package.
For a few hundred more, on a project that is already in the thousands, I can have full custom, and support for questions from someone who knows what they are talkign about... that I like.
That's nice that it comes with the sensors, but when I am already dropping a bunch of money on an install, I'd rather have a custom tune for my application and a custom made harness with a more compact fuse block then that big honkin thing they supply on the GM one.
Also, not sure when the last time you checked was... but I don't think CPW is over $1300 for their T56 package.
For a few hundred more, on a project that is already in the thousands, I can have full custom, and support for questions from someone who knows what they are talkign about... that I like.
04-29-2008, 08:30 PM
#55
TECH Apprentice
Thread Starter
iTrader: (8)
Join Date: Jan 2004
Location: McKinney, TX.
Posts: 313
Likes: 0
Received 0 Likes
on
0 Posts
I got my harness from Scoggin Dickey shipped to my house for $815. It's now listed on the website for $924 or GMPD for $837. For my application I didn't care if it was "custom" as long as it worked. Everything is labelled, all of the emission stuff is gone, and the fuse block fits fine. I would have a really hard time buying that the size of the fuse block would deter someone from getting this kit....
I'm not trying to **** all over speartech or whoever, I just think that people should know about all of the options out there. The prices on the websites are close to what I said earlier 1300-$1700. That's almost double what the GM stuff runs. Not to mention the MAF/IAT and O2's add up to at least another $100-200. To me the value of the GM kit and the money left in my bank account out weighs the tech support I would probably never use anyways.
I'm not trying to **** all over speartech or whoever, I just think that people should know about all of the options out there. The prices on the websites are close to what I said earlier 1300-$1700. That's almost double what the GM stuff runs. Not to mention the MAF/IAT and O2's add up to at least another $100-200. To me the value of the GM kit and the money left in my bank account out weighs the tech support I would probably never use anyways.
04-30-2008, 05:10 AM
#56
TECH Resident
GMPD - $837 + $184.18 in S&H - $1021.38
SD Parts - $924.85 + around $30 shipping - 954.85
Neither one is $815, so you got a pretty good deal being one of the first ones.
SD Parts - $924.85 + around $30 shipping - 954.85
Neither one is $815, so you got a pretty good deal being one of the first ones.
04-30-2008, 02:08 PM
#58
TECH Senior Member
iTrader: (7)
These harnesses come with ECUs that are application specific. Right now the only ones that are shipping are for an LS2, LS3, LS7. All engines use 58 tooth crank wheels and have DBW throttle bodies. At some point the 480HP LS3 harness will be shipping as well.
Andrew
Andrew
05-19-2008, 12:30 PM
#59
TECH Apprentice
Thread Starter
iTrader: (8)
Join Date: Jan 2004
Location: McKinney, TX.
Posts: 313
Likes: 0
Received 0 Likes
on
0 Posts
So today we finally got the car on the dyno and YES the ECM is tunable. We assigned the ECM a VIN for a 2006 CTS-V using the GM Tech Tool and then tuned it just like you would tune any other LS car with HP Tuners. This is great news for those looking for a factory style harness for the new LS2/3/7 motors...