XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

building a 6.8 ltr v12

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Old Apr 15, 2013 | 07:50 PM
  #21  
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gotta get my laptop fired up first! buying some lunati h beam rods tonight and sending the block and crank to get machined for the liners and the increased stroke
 
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Old Apr 21, 2013 | 03:09 AM
  #22  
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Hey Cal how is the engine build going? keep up posted as I will headed down this road soon
 
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Old Apr 21, 2013 | 07:39 PM
  #23  
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its going good! i have the engine at the shop with the liners being bored out to fit, the crnak will be cut this week, i bought the manley sportsman i beam rods this week (good deal so couldnt pass up) should be ordering the postons this week aswell.
 
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Old Apr 21, 2013 | 09:28 PM
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Calvin:

Keep the pictures coming, I want to do something similar with my 5.3 I have sitting in my garage.
 
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Old Apr 24, 2013 | 08:50 PM
  #25  
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here are some pictures guys thats my plan for the exhaust, thoes are the liners and the box they came in
 
Attached Thumbnails building a 6.8 ltr v12-24fdfb16ff54da0973c86acf807bdf4b-5.jpg   building a 6.8 ltr v12-20130417_122239.jpg   building a 6.8 ltr v12-20130417_120837.jpg  
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Old Apr 24, 2013 | 08:55 PM
  #26  
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okay my computer is sucking so i will post more pictures when i get this thing working.
 
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Old Apr 25, 2013 | 12:55 AM
  #27  
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With all this power are planning to brace the diff?

Here is a pic of a Lister XJS rear end
 
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Old Apr 25, 2013 | 07:23 AM
  #28  
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yes im planning on setting up a system thats pretorqued to make sure I don't rip the diff out
 
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Old Apr 25, 2013 | 08:25 AM
  #29  
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Originally Posted by warrjon
Here is a pic of a Lister XJS rear end
That looks a lot like a setup Rob Beere offers for E-Types, and similar to what I've seen built by guys who race XJSs. However, in so doing, they eliminate the factory trailing arms. It's curious that Lister retained them.

All the cage mounts were ripped to shreds on my donor, so I bought a used XJS-C diff truss to make sure that same engine/tranny/diff ratio doesn't do the same thing to JagZilla. It's the same solution Bradley Smith used when he had that problem with his twin supercharged XJS.
 
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Old Apr 25, 2013 | 08:39 AM
  #30  
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my buddy Robert Knodt did a setup with triangular trailing arms
 
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Old Apr 25, 2013 | 09:02 AM
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Originally Posted by calvindoesntknow
my buddy Robert Knodt did a setup with triangular trailing arms
His setup is the very example I was thinking of. He's a heck of a fabricator.
 
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Old Apr 25, 2013 | 11:51 AM
  #32  
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Originally Posted by calvindoesntknow
here are some pictures guys thats my plan for the exhaust, thoes are the liners and the box they came in
Love the cold air scoops for the rear brakes, and the exhaust looks really well made and properly isolated from the body too.

I really admire your achievement and stick to itiveness.

Greg
 
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Old Apr 25, 2013 | 03:02 PM
  #33  
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hit the latest crossroads, the guy won't cut my crank, because he thinks it.cant be done and refuses to do the math to show it can.
 
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Old Apr 25, 2013 | 03:17 PM
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Sounds like it's time to find a new machinist.
 
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Old Apr 26, 2013 | 12:14 PM
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Keep up the good work! Im going for a 6.0 procharger build myself I was directed too this thred please keep us posted!
 
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Old Apr 26, 2013 | 01:04 PM
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yeah im either going to have chad bolles tell my machinist what to do, or im gonna have him build me a crank
 
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Old Apr 27, 2013 | 07:01 PM
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Your the customer thats what you want period. wether or not whos right or wrong.get anothr machinst
 
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Old Apr 27, 2013 | 10:49 PM
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I have to make an observation here. If the machinist you've hired refused to attempt it because lack of documentation (I would think he could have simply made measurements to determine if it were possible or not, but that's beside the point) Do you really trust him to do the work?
My grandmother used to have a saying, "a man convinced against his will is a man of the same opinion still."

I would seriously consider giving Mr Bolles a crack at it.
 
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Old Apr 28, 2013 | 12:37 PM
  #39  
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yeah im thinking of doing that, I will just have to send the crank to him or have him locate one for me. then get the rods narrowed and fit everything
 
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Old May 5, 2013 | 08:18 PM
  #40  
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just giving an update, picked up a new rear for the car. and redid a headliner I picked up from a junkyard car (same car as the rear). interior is back together and the engine will resume as soon as a find a new machinist.
 
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