This Is Different ... STS with 3800 Supercharged Motor
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Community Lounge, Introductions and General Discussion Discussion, This Is Different ... STS with 3800 Supercharged Motor in General Discussion; Well, this is a first that I've seen. I guess this guy felt the 3800SC motor was a better choice ...
  1. #1
    ted tcb's Avatar
    ted tcb is offline Cadillac Owners Connoisseur
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    This Is Different ... STS with 3800 Supercharged Motor

    Well, this is a first that I've seen. I guess this guy felt the 3800SC motor was a better choice than studding a Northstar.

    Interesting powertrain in a Seville.




    Here's a link to the ad, it should be up for a week or so.

    http://ontario.kijiji.ca/c-cars-vehi...AdIdZ475265281

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  3. #2
    Jesda's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    I wonder how the onboard electronics are handling the swap.

  4. #3
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    Re: This Is Different ... STS with 3800 Supercharged Motor



    I bet that thing is a DOG.
    basscatt and basscatt like this.

  5. #4
    Aron9000's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Quote Originally Posted by CadillacLuke24 View Post


    I bet that thing is a DOG.
    You'd be suprised. There are many W-body guys running that powetrain into the 12's and 11 second quarter mile range.

  6. #5
    greencadillacmatt's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Especially if you go with an overdrive pulley swap on the snout of that supercharger...

    I will say that the engine bay looks REALLY empty with the 3.8 in there, supercharged or not.

  7. #6
    I~LUV~Caddys8792's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Whoa, just goes to show how physically small the 3800 is compared to the gigantic Northstar. But it's funny though, with a good tune and the right gearing, a S/C 3800 will keep up with a Northstar. My GS did 0-60 in about 6.7 seconds, right up there with an L37 Northstar.
    "They call Alabama the Crimson Tide, call me Deacon Blues."

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  8. #7
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    W-body has a 300-400lb advantage though.

  9. #8
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    I wonder why it happened - what he figures he gained or improved? It's not often that you see someone devote the resources to a swap that degrades the car. Probably would have been better off picking up a SSEI rather than fabricating that heap of junk.

  10. #9
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Maybe he had the engine and tranny laying around from a wrecked car? Just a hunch. *shrug*

  11. #10
    orconn's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    I agree with those that feel that the car was "degraded." It is rare that a mass produced car (or low volume car for that matter) is produced where the combination of its' components and design produce a uniquely satisfying automobile. Cadillac has on occasion managed just such a feat. The 1939 Sixty Special, the 1976 Seville and the 4th and 5th generation Sevilles are examples of just such good luck!

    However in the case of the 4th and 5th generation Sevilles their technical attributes in the form of the Northstar engines and their advanced suspension systems and stability systems all contributed to the high level of attractiveness these personal luxury brought to the buyer. To replace the North* V-8 with a 3.8 litre V-6 would degrade the whole package into a far less attractive vehicle.

  12. #11
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    It would be a tough resell, but I'm just thinking the owner loved the car so much, had the headgaskets go and instead of dancing with the devil again, he swapped it for a much more reliable (if less thrilling) engine.
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  13. #12
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Judging by the quality of the swap presented in the pictures, reliability is not what he was after - else he would have done a better job. That pig is going to be far less reliable than the car originally was. Sad part is, it probably took more effort to assemble that mess than it would have taken just to repair the factory setup. Performance, efficiency, reliability, and net worth have all been compromised as a result. No comprende.
    ben.gators and ben.gators like this.

  14. #13
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    Perhaps he bought the STS, knowing the motor was junk and wanted to experiment around with a more modifiable engine.
    "They call Alabama the Crimson Tide, call me Deacon Blues."

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  15. #14
    ted tcb's Avatar
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    For those that didn't click the link to his ad, here is what he describes:

    "Testing the WatersI might be willing to part with my custom 2000 SLS completly Rust free car top and bottom the 4.6 blew a head gasket like normal. So the 4.6 was pulled out and a supercharged 3800 series II was put in with mods.. at same time the motor was mated to a 4T65E with 3.69 gears and 2800 stall convertor tranny built by redline transmisson..Car is daily driven.....make an offer"

    He's asking $7500 for a $2k vehicle at best.
    The few low res shots indicate a tired interior, and I bet the dashboard is lit up with warning lights.



  16. #15
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    Re: This Is Different ... STS with 3800 Supercharged Motor

    He probably isn't old enough to know the effect of putting Chevy V-8's in Jaguar E-type's had on resale value!

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