C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

4L80E is in

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Old May 13, 2005 | 07:06 PM
  #21  
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Originally Posted by 4bblC4
I am going to be fabricating my own c beam in the near future to mate up to my th400 w/ a 9" tailshaft.

Is there anything I should be watching out for as far as alignment of the c beam? Is there a pinion angle I should have or anything?

thanks!
I measured the distance from the center of the yoke to the floor. Then I installed the new tranny with the yoke at the same height as the old one.
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Old May 26, 2005 | 12:37 PM
  #22  
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Originally Posted by JoBy
Pictures here:

http://www.joby.se/corvette/mods/2004-12-26_4l80/

No cutting into the fiberglass needed. I only made a small hole for the TCI box cable.

Now I have to get a new driveshaft and build a new exhaust.
How's the exhaust looking? Did you need to cut up the floor?
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Old May 26, 2005 | 06:33 PM
  #23  
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I did not cut into anything exept for the hole for the new harness seen in this picture:



I have installed the TCI T-Com and the Haltech E6K.







I have almost finished the wireing now.

I have two hi intensity LEDs mounted in the a-pillar pod. I will use them as shift-lights om two different Haltech outputs. They can be set att different RPMs.



I connected another output to the check engine light. I configured it to be lit below 400 rpm.

I used a fourth output as tachometer signal. I connected both the stock tachometer and the TCI T-Com tachometer input to that wire.

I have bought 3" piping for the exhaust, but I have not started welding yet. It seems to be more room than I expexted. I will post pictures of the exhaust later.
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Old May 28, 2005 | 09:40 PM
  #24  
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Old May 28, 2005 | 09:49 PM
  #25  
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nicely done!!! where's the Catalytic? How much exhaust ground clearance do you have?
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Old May 29, 2005 | 07:00 PM
  #26  
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Originally Posted by vette_tweak
nicely done!!! where's the Catalytic? How much exhaust ground clearance do you have?
I can't find it ... I must have misplaced it somewhere

The exhaust is a little over an inch below the floor.
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Old May 29, 2005 | 08:14 PM
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very nice work! You should have no problem with that trans. I've been beating on mine for three years and 60k HARD miles. Its finally showing a little age but won't break no matter what I do
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Old Jun 4, 2005 | 06:05 PM
  #28  
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Almost finished with the exhaust.








Don't try to catch a falling pipe that you just welded on.

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Old Jun 4, 2005 | 08:10 PM
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Very nice work.

You know, I also have a 4L80E...............
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in my truck!
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Old Jun 5, 2005 | 01:09 AM
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Man that sure does look sharp, Hope you have many years of trouble free driving, that is one tough tranny!
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Old Jun 6, 2005 | 09:47 AM
  #31  
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Nice job,,, are you going to have the exh. coated ???
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Old Jun 6, 2005 | 04:28 PM
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Originally Posted by comp
Nice job,,, are you going to have the exh. coated ???
The new part of the exhaust ( from headers to mufflers ) are stainelss steel. The Hooker 2151 are not coated, as you probably can see.
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Old Jun 6, 2005 | 04:50 PM
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What are the shift lights for? I thought the TCI controller took care of all the shifting for you?
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Old Jun 6, 2005 | 06:45 PM
  #34  
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Old Jun 6, 2005 | 06:50 PM
  #35  
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Originally Posted by mn_vette
What are the shift lights for? I thought the TCI controller took care of all the shifting for you?
Yes, it does. I Aready had the lights, so I decided to make use of them. The TCI controller also has a connector for a manual shift switch. You can use paddles on the steering wheel to shift manually. If you do a manual shift then the TCI will be in manual mode for 25 seconds ( time can be configuerd ). On a drag-race the computer probably does a better job. On an auto-x track you probably want to shift manually. An up or downshift in the middle of a corner might not be a good thing.

Last edited by JoBy; Jun 6, 2005 at 06:53 PM.
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Old Jun 6, 2005 | 07:46 PM
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I almost don't know what to say other then GREAT JOB.
That is one of the best documented swaps I have ever sen and the quality is first rate. I feel you have also given another choice to many who are fed up with the 700 and if they use your web site as a guide then it will be a much simpler task, again awsome work
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Old Jun 8, 2005 | 07:13 AM
  #37  
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Thanks!

Yesterday I received the new custom driveshaft from Strange Engineering.



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Old Jun 8, 2005 | 08:00 AM
  #38  
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Look at the difference in the size of the yoke that’s a heavy duty Trans for sure
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Old Jun 20, 2005 | 05:17 AM
  #39  
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The Corvette is out on the streets again and I have started tuning the Haltech. The 4L80E seems to be working great.
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