Sunkisst Tunnel 5.3 Turbo
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Sunkisst Tunnel 5.3 Turbo

  1. #1
    Member Uncle_Tom79's Avatar
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    Default Sunkisst Tunnel 5.3 Turbo

    I picked this boat up from Hotbo back in Aug. Motor is a 5.3 with Ls6 cam and springs, otherwise stock. Fabbed up all of the hardware, set the pump back, painted it, went through the trailer, wired and plumbed it over the winter. Rail kit, mounts, flywheel cover and transom plates were all done on a cheap KBC tools benchtop mill. Headers and hotside were tigged from bends and then coated with jethot 2000. Turbo is a Garrett m1 from a Detroit with 75mm compressor wheel (sorry GN7, no JD parts). Should have the intercooler and hat this week. Ran 70 on gps na, so I'm anxious to see what some boost will do.
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    Senior Member H20MOFO's Avatar
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    Sweet....keep us posted.
    Another Hot Boat refugee

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    Senior Member hotbo's Avatar
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    cant believe my eyes


    glad you got the thing lookin good

    Travis...
    WFLC


    2011 Performer SS
    built by Scott Seastrom.

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    Senior Member Hass828's Avatar
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    Quote Originally Posted by Uncle_Tom79 View Post
    I picked this boat up from Hotbo back in Aug. Motor is a 5.3 with Ls6 cam and springs, otherwise stock. Fabbed up all of the hardware, set the pump back, painted it, went through the trailer, wired and plumbed it over the winter. Rail kit, mounts, flywheel cover and transom plates were all done on a cheap KBC tools benchtop mill. Headers and hotside were tigged from bends and then coated with jethot 2000. Turbo is a Garrett m1 from a Detroit with 75mm compressor wheel (sorry GN7, no JD parts). Should have the intercooler and hat this week. Ran 70 on gps na, so I'm anxious to see what some boost will do.
    Man thats a cool looking setup, one word of caution though. Those headers will glow red hot while making boost. So without a doubt you will need to heat shield them or they will melt the backs of those seats and everything else around them. And the radiant heat will travel a long ways. Just tig some 1/4" bolts to the headers for studs and build some shields that are easy to remove. Very simple. Check my build thread, its how I did it and they work great.
    They will need to shield the plug wires also as they will melt in 1 trip. Ask me how I know ,lol.
    Last edited by Hass828; 05-22-2011 at 12:16 PM.
    "if we keep doing it the same way we always do..we will always get the same results"
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  7. #5
    Member Uncle_Tom79's Avatar
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    Thanks Travis

    how is your deal coming along?

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    Member Uncle_Tom79's Avatar
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    Quote Originally Posted by Hass828 View Post
    Man thats a cool looking setup, one word of caution though. Those headers will glow red hot while making boost. So without a doubt you will need to heat shield them or they will melt the backs of those seats and everything else around them. And the radiant heat will travel a long ways. Just tig some 1/4" bolts to the headers for studs and build some shields that are easy to remove. Very simple. Check my build thread, its how I did it and they work great.
    They will need to shield the plug wires also as they will melt in 1 trip. Ask me how I know ,lol.
    Thanks for the heads up. I was hoping the jethot 2000 would kill enough of the surface temp that I would be able to get by without shields, but they get pretty hot even running it na. I will probably have to make them clamp on so I don't ruin the coating. I do have some kevlar heat sleeving for the wires, do you think that would work?

    Uncle_Tom

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    Senior Member Hass828's Avatar
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    Quote Originally Posted by Uncle_Tom79 View Post
    Thanks for the heads up. I was hoping the jethot 2000 would kill enough of the surface temp that I would be able to get by without shields, but they get pretty hot even running it na. I will probably have to make them clamp on so I don't ruin the coating. I do have some kevlar heat sleeving for the wires, do you think that would work?

    Uncle_Tom
    I hate to be the bearer of bad news but that coating is going to go by-by after you run it the first few times. The headers I have had been jet-hot coated with the ceramic stuff and its gone.
    Its going to take something like this around that hot side.

    "if we keep doing it the same way we always do..we will always get the same results"
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  10. #8
    Senior Member Hass828's Avatar
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    I put a set of these on the plug boots and the socks over the wire.
    Taylor Cable 2570 - Taylor Spark Plug Boot Heat Shield Protectors - Overview - SummitRacing.com
    "if we keep doing it the same way we always do..we will always get the same results"
    H8-2-W8
    [email protected] first pass

  11. #9
    Member Uncle_Tom79's Avatar
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    Quote Originally Posted by Hass828 View Post
    I hate to be the bearer of bad news but that coating is going to go by-by after you run it the first few times. The headers I have had been jet-hot coated with the ceramic stuff and its gone.
    Really? They told me the jethot 2000 would withstand surface temps over 2200 deg. Guess I'll start building some shields. Thanks for the info.
    BTW, i'm a huge fan of your build.

  12. #10
    Senior Member Hass828's Avatar
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    Quote Originally Posted by Uncle_Tom79 View Post
    Really? They told me the jethot 2000 would withstand surface temps over 2200 deg. Guess I'll start building some shields. Thanks for the info.
    BTW, i'm a huge fan of your build.
    Are those headers mild steel or stainless?
    "if we keep doing it the same way we always do..we will always get the same results"
    H8-2-W8
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  13. #11
    Highaboosta Unchained's Avatar
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    What are you using for the ignition system ?

    The coil packs that mounted on the valve covers would have made a real nice setup.

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

    Quote Originally Posted by Trigger View Post
    No one cares about your buddies old antiquated garden hose technology.
    Quote Originally Posted by MAXIMUS View Post
    I think I could run more boost but it's a real hand full right now

  14. #12
    Member Uncle_Tom79's Avatar
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    Hass: They are 304ss

    Mark: Using MSD 6010 with stock coils, just moved them down on the rails.

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    GN, with all due respect, just pretend you never saw this thread. Turn around and walk away, you probably wouldn't add anything positive.

  16. #14
    Senior Member Filucky's Avatar
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    Wow i like that alot, very clean setup and boat!
    Nice!

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