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Thread: 06 Cobalt LSJ Swap into my 71 TR6

  1. Top | #25
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    Very nice end result. How does it drive?

    Nothing is difficult; some things just take more time.
    TAKE TO EXTREMES AND DOMINATE!

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    It is a great driver. It makes a crazy motorcycle like move in any gear. I have to be careful because it moves so fast that other drivers may not see me. In other words, one moment I am not there and the next I am and they never saw me coming. Because it is a small, low, and quick car, I have to drive as if I am invisible. The cool think about the car is the TR6 is known for being under powered; the original six cylinder produced less than 90 HP. People are very surprised that I am cruising with them at 70 MPH and then can in a blink and a whine, pull away.. The short, narrow wheel base along with the modifications I have made to the suspension makes it handle as if it is on rails. The interstate on and off ramps, and the twisties belong to me. Big fun car to drive. The SC whine is intoxicating. I plan to do an in cockpit video this spring to share.
    71 TR6
    Best Therapy
    Cobalt Ecotec LSJ, GM Stage 2, Camero T5
    GoodParts CV Axle/Hub, Nissan R200 LSD 4.08 Ratio
    http://www.britishv8.org/Triumph/AlbertGary.htm

  3. Top | #27
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    It is a great driver. It makes a crazy motorcycle like move in any gear. I have to be careful because it moves so fast that other drivers may not see me. In other words, one moment I am not there and the next I am and they never saw me coming. Because it is a small, low, and quick car, I have to drive as if I am invisible. The cool think about the car is the TR6 is known for being under powered; the original six cylinder produced less than 90 HP. People are very surprised that I am cruising with them at 70 MPH and then can in a blink and a whine, pull away.. The short, narrow wheel base along with the modifications I have made to the suspension makes it handle as if it is on rails. The interstate on and off ramps, and the twisties belong to me. Big fun car to drive. The SC whine is intoxicating. I plan to do an in cockpit video this spring to share.

    This is what I uesd to do. SBC 302 ci, Doug Nash 5 speed, 6.17 Dana, 2800 lbs., turning 9.4's @145 MPH. That was a ride.
    vegapro1.JPG
    71 TR6
    Best Therapy
    Cobalt Ecotec LSJ, GM Stage 2, Camero T5
    GoodParts CV Axle/Hub, Nissan R200 LSD 4.08 Ratio
    http://www.britishv8.org/Triumph/AlbertGary.htm

  4. Top | #28
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    Nice Vega, I was thinking about a Monza for a time. Well a 78 that is because they looked better.
    LOL I thought 14 inch wheels were stock, boy I was way off.
    So the little Eco balanced the car out better than the inline 6? Or was it just something that helped?
    More humans=more problems
    Don't worry nothing will be done until it's too late, there is money to be made.
    Maximum profit and overpopulation will ruin all the major economies.

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    I think you are right. I have not taken a weight reading at each corner but I can tell you that the stock in-line 6 was all iron and weighed in at about 650 lbs. The LSJ is about 400 lbs., sits further back. The car always handle very well, but instead of driving the car out of a corner as I did the inline 6, which was fun, I now just point the car where I want it to go.

    What I noticed right off is after I swapped engines the car sat a lot higher. So I installed 1” lower springs at the four corners which helped a lot. The wider tires also added to the footing.
    71 TR6
    Best Therapy
    Cobalt Ecotec LSJ, GM Stage 2, Camero T5
    GoodParts CV Axle/Hub, Nissan R200 LSD 4.08 Ratio
    http://www.britishv8.org/Triumph/AlbertGary.htm

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    That SBC would have been a screamer!

    Looking forward to your video.

    Nothing is difficult; some things just take more time.
    TAKE TO EXTREMES AND DOMINATE!

  7. Top | #31
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    That sounds like a dream car to me. I'm tired of fighting my way in and out of turns!
    More humans=more problems
    Don't worry nothing will be done until it's too late, there is money to be made.
    Maximum profit and overpopulation will ruin all the major economies.

  8. Top | #32
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    Can anyone tell me what the clutch disc spline count is on the stock Cobalt disc? Is it different from the rear wheel drive LSJ Ecotecs? I had a special disc made and heard from someone that I did not need to do that. I recall being told that the rear wheel drive Supercharged engines used 26 spline clutch discs. If this is true, I can just get a replacement disc. See I have a Camero T5 tranny with a 26 spline input shaft. The disc a had made I am not too crazy about. It is a bi-material disc offering very little slippage.
    71 TR6
    Best Therapy
    Cobalt Ecotec LSJ, GM Stage 2, Camero T5
    GoodParts CV Axle/Hub, Nissan R200 LSD 4.08 Ratio
    http://www.britishv8.org/Triumph/AlbertGary.htm

  9. Top | #33
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    There weren't any RWD LSJs from gm

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    Trick6 (02-24-2014)

  11. Top | #34
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    Solstice/Sky clutches will fit just fine on the T5 input-shaft. Their both 1-1/8" diameter and 26-spline. The Cobalt clutches are different spline-count.

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    Trick6 (02-24-2014)

  13. Top | #35
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    I thought the LSJ was in the Solstice but that engine is a turbo and direct injection 260 HP. Nice. Live and learn. Sorry about that.

    Now my next question is disc diameter. Will the Solstice clutch pressure plate and disc diameter fit my LSJ flywheel? I would like to get a new complete Solstice clutch package; pressure plate, disc, TOB and all replacing the existing stock Cobalt pressure plate, the disc I had made up, and the Howe TOB.

    100_3160.JPG

    Well since it is a balanced unit maybe I will just switch the disc to something that will allow me to park the car withoi=ut jarring out my teeth.
    Last edited by Trick6; 02-24-2014 at 06:01 PM.
    71 TR6
    Best Therapy
    Cobalt Ecotec LSJ, GM Stage 2, Camero T5
    GoodParts CV Axle/Hub, Nissan R200 LSD 4.08 Ratio
    http://www.britishv8.org/Triumph/AlbertGary.htm

  14. Top | #36
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    I thought the LSJ was in the Solstice but that engine is a turbo and direct injection 260 HP. Nice. Live and learn. Sorry about that.
    Trick6 Quoted Post
    With those changes there were a lot more also. But came an engine code change to LNF.

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