XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

building a 6.8 ltr v12

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Old Nov 12, 2013 | 10:20 PM
  #121  
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if I ever pick up another shell it will get a 4.0 with a massive turbo set up on it. but that's down the road
 
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Old Nov 13, 2013 | 02:47 PM
  #122  
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CAL did you say TURBO????????
 
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Old Nov 13, 2013 | 09:54 PM
  #123  
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how else would I make a six cylinder worth driving?
 
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Old Nov 13, 2013 | 10:01 PM
  #124  
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BACK TO THE BUILD. the motor is finishes asside from the accessories check it out

building a 6.8 ltr v12-forumrunner_20131113_230049.png
 
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Old Nov 14, 2013 | 03:06 AM
  #125  
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Good work Cal - keep the pics coming.
 
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Old Nov 14, 2013 | 12:42 PM
  #126  
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will do warron, should be putting.more of the accessories on tonight
 
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Old Dec 12, 2013 | 10:22 AM
  #127  
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So the motor is all completed, last night we finished up the cnc cut trigger wheel mount for the tec3 6/12 engine computer I am installing. The trigger wheel was welded to the back of the balancer and was then relief cut to allow the balancer to allow it's balancing action space. Here is a pic of the wheel cut to fit the balancer before the welding and machining.
More pictures coming tonight

building a 6.8 ltr v12-forumrunner_20131212_112205.png



building a 6.8 ltr v12-forumrunner_20131212_112155.png
 
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Old Jan 11, 2014 | 12:32 AM
  #128  
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Some more engine pictures just to keep people interested

building a 6.8 ltr v12-forumrunner_20140111_013053.png



building a 6.8 ltr v12-forumrunner_20140111_013032.png



building a 6.8 ltr v12-forumrunner_20140111_013020.png

The intakes.and exhaust atr. Ceramic coated to prevent heat sink, and the throttle bodies are stock as of now
 
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Old Feb 7, 2014 | 11:01 AM
  #129  
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How are things progressing Calvin?

I'm ready to fire mine up, but, I first have to chase down a problem somewhere in the wiring for my Electromotive unit. I cant seem to get a signal to the fuel pump and starter relays, even though I know have a signal going to the injectors, because I hear the injector relay click when I turn the key.

I hate automotive electrics.
 
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Old Feb 7, 2014 | 06:01 PM
  #130  
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electrics!!! me to. PITA

JagZ keep at it youll get it, i run my pump from a seprate switch in center consul .
 
Attached Thumbnails building a 6.8 ltr v12-center-consol-j-bond-system-002.jpg  
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Old Feb 7, 2014 | 10:32 PM
  #131  
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Scott

Easiest way to meter the loom is to unplug from ECU and jumper each pin to a ground in the loom that is not earthed anywhere but the ECU (floating) this way you can check each connection. DO NOT use an earth that is grounded in the loom this could give you incorrect results unless you disconnect every senor, relay and other device on the loom.
 
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Old Feb 8, 2014 | 02:47 AM
  #132  
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Been at school for the past couple weeks so haven't been doing too much.

Currently have the rear end out being Powdercoated and rebuilt.

Where in your car did you locate your computer?
 
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Old Feb 8, 2014 | 10:12 AM
  #133  
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Originally Posted by calvindoesntknow
Been at school for the past couple weeks so haven't been doing too much.

Currently have the rear end out being Powdercoated and rebuilt.

Where in your car did you locate your computer?
At the moment, it's laying in the passenger floorboard area, looking like a real mess. The plan is to either mount it on the outboard sidewall of the passenger foot well (as it was in the donor), or in the glove box. With my installation, I am pretty much just transferring the components from my donor which already has custom wiring looms built to a given length. Because of that, I'm limited to where I can locate my ECU.
building a 6.8 ltr v12-tec-1.jpg

The wires run through the firewall via the access panel from the 89 donor, which has a large tube for the wires and large connectors to pass thru. It also originally held some of the ABS gear. I removed the bracket for the ABS to visually clean up the panel. I couldn't find a rubber boot large enough to fit over the end of the tube, so I will make one out of leather, and add some old world charm to the engine bay.
building a 6.8 ltr v12-wire-port.jpg

I'm looking forward to future updates from you, especially those involving your Electromotive unit.
 
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Old Feb 18, 2015 | 06:06 AM
  #134  
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Nice to see that you are on your way to completion...
Whats the latest?
 
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Old Feb 18, 2015 | 06:51 PM
  #135  
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Just read 7 pages and no ending. What happened? Does it run ? Did I miss something?
On the edge of my seat here
 
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Old Feb 18, 2015 | 07:17 PM
  #136  
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That hole you used for the wiring was a Marelli harness. the bellow off of a steering rack works nicely, almost looks factory.
 
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Old Feb 19, 2015 | 09:25 PM
  #137  
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Originally Posted by Bc xj
Just read 7 pages and no ending. What happened? Does it run ? Did I miss something?
On the edge of my seat here
I'm actually gonna be working on the headers tomorrow! Hopefully wrapping them up in the next few weeks,
been busy with college and work and all that adult stuff I'm supposed to do. Will post an update on the headers tomorrow night!!
 
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Old Feb 21, 2015 | 02:50 PM
  #138  
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Life gets in the way sometimes.
Thanks for the update
 
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Old Mar 21, 2015 | 07:56 PM
  #139  
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looks like an awesome project
thanks for including most of the info on the rods and stuff
 
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