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  1. #1
    Join Date
    Jan 2012
    Location
    Woodinville, WA
    Posts
    78

    Default Twin turbo 455, FI

    I love Buicks, always have; and think that with the body of knowledge on how to build these motors, I can give an LSanything a run for its money with the same amount of dollars spent. That means a LS7 or LS3 with a blower costs between 13,000 and 17,000. I say I can build a Buick motor that performs better for the same or less dollars....

    So here it starts.
    I have a 1976 block that I bought a long, long time ago - it's at the machine shop getting bored, and girdle attached
    Here it is after it was done wrong:



    add two of these



    a couple of these


    yeah, I know some on here don't like Edelbrock heads... let me save you the rant - I don't care what you think... I'm selling tickets to the event of "I told you so" when I'm done with this build - so please, if you feel the need, do buy a ticket and wait in line




    and I had these laser cut



    To recap, expected HP is 700, torque should be close to that number; all in by 5500. It's going in a 70 Skylark (my avatar) with a suspension that is tubular, boxed, and braced for road racing; large disk brakes and (to be changed) 3.73 gears.
    It will be port fuel injected and I probably will build the manifold for it, and I am building the headers.

    This upgrade should be done by end of summer

  2. #2
    Join Date
    Jan 2006
    Location
    Ottawa, ON
    Posts
    1,925

    Default Re: Twin turbo 455, FI

    Very Cool!

    I hear there is a popular CNC program for porting those heads, and the owner of the shop has a nice boosted big block.

    Curious why youre building the headers yourself. Lots of choices out there.
    Azeem
    Ottawa Ontario Canada

  3. #3
    Join Date
    Oct 2004
    Location
    PGH,PA, USA
    Posts
    4,739

    Default Re: Twin turbo 455, FI

    sounds awsome

    what brank fuel injection you doing?
    mega squirt, holley, accel?

    and if you need a fuel pressure regulator i have a new in box fuelab brand
    Mike aka BiZnO
    72 twinturbo Skylark

    Buick 350 Inspirational members to me..
    TuBBeD for his 551+ N/A build
    BillMah52 First to take a 350 where no man has gone before
    Justa350 First to hang a pair of turbos and cause Kaos
    GSJohnny First to max out the bore at .090 and his .075 and have engines that actually breath well N/A!
    Bobb Makley First well known to Stroke a 350
    Ken Betts, Hopefully the guy to pull-off 350 AL heads :-D

  4. #4
    Join Date
    Nov 2010
    Location
    elk city, ok
    Posts
    2,172

    Default Re: Twin turbo 455, FI

    im no engineer but would those exhaust flanges not cause turbulence or am i missing something?
    Lonnie
    Black 70 skylark post car (Tyler's old car)
    Yellow 72 suncoupe 350/350 8.5.
    72 chevelle with 462 buick 9-9.5-1 estimated cr stock not stage heads lunati 68001 cam 800 cfm qjet. hooker headers and spx intake. th-400. 100 shot
    8.5 3.73 posi
    3200 coan (sold)

    1.78 60 ft 12.2 at 112 mph
    no traction

    first engine i built by myself. gotta love the 3126 cat..pshht.

  5. #5
    Join Date
    Jun 2003
    Posts
    634

    Default Re: Twin turbo 455, FI

    cool build. keep pictures coming

    Cody

  6. #6
    Join Date
    Oct 2004
    Location
    PGH,PA, USA
    Posts
    4,739

    Default Re: Twin turbo 455, FI

    Quote Originally Posted by 462 Chevelle View Post
    im no engineer but would those exhaust flanges not cause turbulence or am i missing something?
    oh damn, i really didnt look at the pic till you mentioned....and ah ...yea..

    whats with th emis-matched shapes there?
    \

    as long as the diameter of the circle is big enough not to block the square inlet then its all good..
    Mike aka BiZnO
    72 twinturbo Skylark

    Buick 350 Inspirational members to me..
    TuBBeD for his 551+ N/A build
    BillMah52 First to take a 350 where no man has gone before
    Justa350 First to hang a pair of turbos and cause Kaos
    GSJohnny First to max out the bore at .090 and his .075 and have engines that actually breath well N/A!
    Bobb Makley First well known to Stroke a 350
    Ken Betts, Hopefully the guy to pull-off 350 AL heads :-D

  7. #7
    Join Date
    Nov 2010
    Location
    elk city, ok
    Posts
    2,172

    Default Re: Twin turbo 455, FI

    i thought the eddy heads had the stock shape exhaust port?
    Lonnie
    Black 70 skylark post car (Tyler's old car)
    Yellow 72 suncoupe 350/350 8.5.
    72 chevelle with 462 buick 9-9.5-1 estimated cr stock not stage heads lunati 68001 cam 800 cfm qjet. hooker headers and spx intake. th-400. 100 shot
    8.5 3.73 posi
    3200 coan (sold)

    1.78 60 ft 12.2 at 112 mph
    no traction

    first engine i built by myself. gotta love the 3126 cat..pshht.

  8. #8
    Join Date
    Jan 2006
    Location
    Ottawa, ON
    Posts
    1,925

    Default Re: Twin turbo 455, FI

    D'oh.... I clearly saw the picture of the turbo but when I saw the flange my brain turned off and pictured a regular header.

    Makes sense now, thank Sean.
    Azeem
    Ottawa Ontario Canada

  9. #9
    Join Date
    Jun 2008
    Location
    Ely, NV
    Posts
    3,273

    Default Re: Twin turbo 455, FI

    Quote Originally Posted by 462 Chevelle View Post
    im no engineer but would those exhaust flanges not cause turbulence or am i missing something?
    I'm with you on that, but this guy is definitely no dummy, I'm sure he has something figured out for it and it was done for a reason. He's GOOD with the header building. I'm going to be starting a set for my OHC six soon because of motivation from this and other project's he has going.
    The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 2 & TKO-600 (Drag Week 2011!), '72 Centurion Conv't - 455w/TH400, '67 T-bird 4Dr (suicide) w/428, MegaSquirt 1 & C6. '69 Firebird replaced, now building a Pontiac Turbo L6!

    My Skylark thread
    http://www.v8buick.com/showthread.php?t=208168
    My Pontiac OHC Six thread.
    http://www.v8buick.com/showthread.php?t=219250

    I'm just a regular guy that fuel injected an old Buick and Thunderbird.

  10. #10
    Join Date
    Nov 2010
    Location
    elk city, ok
    Posts
    2,172

    Default Re: Twin turbo 455, FI

    im sure he has it figured out. im just curious what he had going on. maybe we could learn something. unless its a secret
    Lonnie
    Black 70 skylark post car (Tyler's old car)
    Yellow 72 suncoupe 350/350 8.5.
    72 chevelle with 462 buick 9-9.5-1 estimated cr stock not stage heads lunati 68001 cam 800 cfm qjet. hooker headers and spx intake. th-400. 100 shot
    8.5 3.73 posi
    3200 coan (sold)

    1.78 60 ft 12.2 at 112 mph
    no traction

    first engine i built by myself. gotta love the 3126 cat..pshht.

  11. #11
    Join Date
    Jan 2012
    Location
    Woodinville, WA
    Posts
    78

    Default Re: Twin turbo 455, FI

    The first headers I did were square port - and it was a b*t*h to both blend and line up the pipes.... however, it's really easy to cut the corners once the pipes are welded in place and make a square to round port... and it's LOTS easier to put the pipe where you want it. So that's why - the sides are covered by the 16 ga (1/8") pipe, and the corners are blended.

    Why do I build it myself - because I can? I actually enjoy puzzling out how I want the headers, and I also like that headers cost me less than $200.... here's ones I did before (they are WAYYYYYY oversized for that stock motor - but my original plan was a supercharger for this motor's build)





    and with paint



  12. #12
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    13,505

    Default Re: Twin turbo 455, FI

    Bump to the top!
    __________________________________________________ ________________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ __________________________________________________ _________________________________
    1970 Buick Skylark 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

  13. #13
    Join Date
    Jun 2003
    Posts
    634

    Default Re: Twin turbo 455, FI

    updates??

  14. #14
    Join Date
    Jan 2012
    Location
    Woodinville, WA
    Posts
    78

    Default Re: Twin turbo 455, FI

    Let's see... update

    Never, ever, ever use Jim Green's Performance Center in Monroe Washington. I'm still dealing with the aftermath of what they did wrong (they didn't follow the TA performance instructions on how to install the girdle) then claimed they were perfect and never made mistakes. As you might imagine, many words are being exchanged.

    Once that's straightened out, I'll be back on the build. Otherwise, I'm working with a couple different suppliers for the chassis that will get this motor.

  15. #15
    Join Date
    May 2010
    Location
    Southwest Ohio
    Posts
    2,427

    Default

    Sorry to hear of your troubles. Keep is updated when you get back moving in the right direction, im really intrigued by this build. Looks like youve got a recipe for one nasty ride!
    Shawn
    "I drive too fast to worry about my cholesterol..."
    -72 Skylark project "Rusty Hulk"-
    BPG #2288

  16. #16
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    13,505

    Default Re: Twin turbo 455, FI

    Why not pick up a set of nice rods for half price:

    http://www.v8buick.com/showthread.ph...let-steel-rods
    __________________________________________________ ________________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ __________________________________________________ _________________________________
    1970 Buick Skylark 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

 

 

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