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Generation IV Internal Engine
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Old 03-13-2006, 09:49 AM   #1
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Default Speartech announces stand alone harness/ECM package for the LS2/LS7 58X engines!

Finally! We’ve been working on this ever since the LS7 crate engine was released, and now we have a full running package available for those people swapping this engine into kit cars, street rods, muscle cars, race cars, off-road vehicles, etc.

This setup will work on the LS2 and LS7 engines with the 58X reluctor wheel (gray crank sensor), and features our custom formed wiring harness available in any length you need for your project. The harness is designed for use with the factory 90mm ETC throttle body. Each harness/ECM package will come with the usual Speartech features including: fuse block, fuel pump relay, check engine light, OBD-2 diagnostic connector, and has easy to hook up wires for battery, ignition switch and electric fuel pump. Wires are also brought out and labeled for tach and speedometer use.

Our package makes use of the production GM ECM (E38) designed for this engine; no boat computers or expensive aftermarket race ECU’s. This setup allows the engine to run as designed and allows for normal GM diagnostics and data monitoring using a Tech 2 or any aftermarket scan tool capable of communicating with the newer GM engines. This is a full closed loop setup designed mainly for non-emissions use. Purge canister control and rear oxygen sensors can be optionally added for emissions compliance in many areas.

Like most of our wiring harnesses, these harnesses are custom made per individual application so there is no on the shelf boxed harness ready to ship.

Initial packages are available for manual transmission or non-electronic automatic applications, with the electronic automatics following close behind!

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Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

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Old 03-13-2006, 10:09 AM   #2
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SUPER!!!!!!!! Approx. $$$ range with ECM (E38)?
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Old 03-13-2006, 11:24 AM   #3
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WoW...that's nice! What about tuning for that PCM?
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Old 03-13-2006, 11:51 AM   #4
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That's phenomenal. Congrats, Speartech.
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Old 03-13-2006, 12:53 PM   #5
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Very nice. I'm very interested.
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Old 03-13-2006, 01:12 PM   #6
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AWESOME!
always innovative and EXCELLENT customer sevice and Speartech is a guy who meets his deadlines!

I got my LS1 harness modified by Speartech and the PCM tuned by him as well, great service, support and delivery!
woop wooop!
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Old 03-13-2006, 03:38 PM   #7
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Very nice John!
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Old 03-13-2006, 09:25 PM   #8
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WOOT!!!!!!!!!

Looks like my project is back in business... Congrats John, musta felt good when you got it done!

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Old 03-14-2006, 08:18 AM   #9
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Quote:
Originally Posted by RyanJ
WoW...that's nice! What about tuning for that PCM?

I think you'll see all of the major players releasing tuning packages for this controller over time.
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Old 03-14-2006, 08:27 AM   #10
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Thanks guys! Yes, it did feel good to finally fire up the engine and it just sat there and ran like it was supposed to!

The complete LS2/LS7 custom stand alone wiring harness and computer package is $1995.00. This package was specifically developed for the new 2006 LS2 crate engine (Part number 19156261) with the 58X crankshaft sensor.

The package includes the following:

A new custom length, stand-alone LS2/LS7 wiring harness. The harness includes a check engine light, diagnostic connector, fuel pump relay, fuse block, and labeled wires for easy hookup to the battery, ignition switch, and fuel pump. Wires are also included for tach, speed, and A/C functions where applicable. These custom stand alone harnesses are built for full function, closed loop control, and designed for non-emissions use (no post-cat O2's, purge canister, or fuel tank evap interface). Our harnesses can be built to your desired length specifications.

The package comes with the 2006 Corvette LS2/7 ECM (E38) fully programmed for your application including: VATS (vehicle anti-theft system) removal, emissions equipment removal (whatever you don’t need or are not using on your swap such as: catalytic converters, rear O2 sensors, fuel tank pressure, EVAP), torque management removal, etc.

The reprogramming lets your new engine run properly without the “check engine” light being on unless there is a problem with the engine that needs to be addressed.

Since the LS2/7 is an Electronic Throttle Control (ETC) engine, the electronic pedal is also included in the package.

As with all Speartech packages our systems can be serviced with any late model diagnostic equipment designed for GM vehicles.

Options available:

Extra length (beyond 5’): $50.00

Emissions package (wiring for rear O2 sensors and charcoal canister control): $50.00

Sensor package (includes correct front O2 sensors and MAF sensor for one-stop shopping): $300.00



We have several pre-orders to get filled, then we should be able to process these in a timely manner.
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Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

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Last edited by Speartech; 08-07-2006 at 07:03 PM..
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Old 03-14-2006, 08:44 AM   #11
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I have used John's products before and they are top notch!
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Old 03-14-2006, 09:49 AM   #12
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Quote:
Originally Posted by Reckless
I have used John's products before and they are top notch!
Yep, same here.. about the only person I would buy a harness from. I can't wait for mine to arrive
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Old 03-14-2006, 09:57 AM   #13
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Thats a nice system, looks simple to install too. Throttle by wire also makes things easier in most vehicles. Good job!
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Old 03-14-2006, 11:15 PM   #14
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Awesome John! You're the best! Your ls1/6 harness that I have used works beautifully.
Quote:
We have several pre-orders to get filled, then we should be able to process these in a timely manner.
You got that right.....I'm waiting patiently!!!!!!!
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Old 03-15-2006, 11:40 AM   #15
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Default Transmission Question

Hi John: The harness looks very good and is resonably priced. My question for you is if you are are running a non computer controlled trans such as a turbo 200R4 or 350 turbo is there a bracket setup, way to connect the TV or kick down cable to the elctronic Trottle Body Assembly? The trans will not work properly with out it. If you are running a turbo 400 can you just wire in the detent switch somehow to the electronic gas pedal assembly or would you have to modify this assembly some how? The L480 electronic trans might be better to run when you come out with a harness for it but it doesn't fit in a lot of swaps without cutting and modifying the trans tunnel. Thanks for coming out with a good product.
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Old 03-16-2006, 11:11 AM   #16
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I don't know of any way to hook up a T.V. cable to the ETC system. So that might rule out the 700R4 and the 200-4R.

For the TH350 I think you would lose the auto kick down and would have to do that manually.

For the TH400 you could hook a switch to the pedal assembly for kick down. It would require some modification to add the switch, but it could be easily done.
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Old 03-16-2006, 12:14 PM   #17
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Would you attempt a 24>58 reluctor interface so the LS7 can run with a <2006 PCM?
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Old 03-16-2006, 03:46 PM   #18
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Hi John: Thanks for the info on the trans question. If you wanted to run a 200r4, 700R4 or 350 turbo trans you might be able to get an old style cable. One from a full size Buick or Olds late 70's vintage. These types of cables run from the trans to the gas pedal. You could connect the one end to the trans and run the other end thru the existing hole that was used for the old accelerator cable, you might have to open up the hole a little. You would have to make a bracket or weld a piece of rod to the pedal assembly rod and figure out the geometry. I think this would work fine because you have some adjustment in the cable. Maybe someone will experiment with this. I like the Electronic pedal setup because it is very easy to connect the cruise control. Good Luck to you I am sure you will sell a lot of the new harnesses.
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Old 03-16-2006, 04:35 PM   #19
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do you guys sale just the plug for the coil pack?
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Old 03-16-2006, 08:09 PM   #20
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Quote:
Originally Posted by See5
Would you attempt a 24>58 reluctor interface so the LS7 can run with a <2006 PCM?
I wouldn't. It can be difficult to do and unreliable.
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Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

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Old 03-16-2006, 08:09 PM
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