Twin turbo 350 Skylark build thread

Discussion in 'Small Block Tech' started by Buick#455, May 2, 2016.

  1. Buick#455

    Buick#455 Well-Known Member

    Nothing but spinning off the line...
    Buick 350 twin turbo set up
    10lbs of boost
    Th350, never got to shift out of 2nd gear by 1/8th.
    3:23 rear...... 295/65/15 Mickey Thompson drag radials.
    Old worn motor to boot. Can't wait for my custom Pistons to come in and finish my good block!
    Stroked to 370. Should really haul ass then. Will post updates with block & new track times accordingly.
    Next track day is June 5th....
     

    Attached Files:

    300sbb_overkill likes this.
  2. Extended Power

    Extended Power Well-Known Member

    Nice!
    Locker in the rear?
    Ladder bars or Caltracs?

    Take your foot off the brake pedal next time. -just kidding!
     
    TorqueMonster1 likes this.
  3. alec296

    alec296 i need another buick

    My thoughts are it Looks like your gear is fighting those giant tires. Almost 30 inch diameter tire on a 3.23 isn't working. I run 4.10s with my 28x10.5 slicks. You should at least be 3.73. Most 295/65 tires are on pickup trucks.
     
  4. Buick#455

    Buick#455 Well-Known Member

    Would 275/50 or 60/15 make a difference?
     
  5. alec296

    alec296 i need another buick

    275-50 are much shorter 25.8 inch . 275-60 is still up around 28 inch in diameter. That should show 60 ft improvements and the rest of track times . Tuning suspension for the bigger power you will eventually make is going to take work. But if you get this setup dialed in the 370 won't be far off.
     
  6. 69GS400s

    69GS400s ...my own amusement ride!

    just happen to have a time slip in front of me for a 12.1 run ..

    1.74 60'
    1/8th mile 7.744
    1/8th mph 88.67

    thats with 3.31 gears, 275/60 MT's, and a 4100# car .. motor is about 550 hp.

    So comparing, your MPH is very nice
     
  7. Justa350

    Justa350 I'm BACK!

    Yes, that much easier to roast the tires off the line.
     
  8. Buick#455

    Buick#455 Well-Known Member

    3:23 posi 10 bolt built to take 800+ HP using stock control arms and old adjustable air shocks.
    Next time I'll try taking my foot off the brake... Lol
     
  9. alec296

    alec296 i need another buick

  10. Justa350

    Justa350 I'm BACK!

  11. sean Buick 76

    sean Buick 76 Buick Nut Staff Member

    Once you get the good engine in there that gear and tire will be good I think... Lots of people are running super fast with boosted small blocks and gears in the 2.56-3.23 range.
     
  12. Phil

    Phil It really *is* a 350...

    4260_1063746154865_3038028_n.jpg
    UMI Performance uppers and a Spohn rear swaybar. That's the ticket.
     
  13. alec296

    alec296 i need another buick

    HR parts n stuff rear anti sway bar. Lifts really even . No air bags needed
     
  14. 8ad-f85

    8ad-f85 Well-Known Member

    ^^ Last two posts :TU:
    When you push enough torque through the stiffened rear suspension to buckle your 1/4 panel at launch then you need to stiffen up the frame some more, such as a "k" brace
     
  15. Buick#455

    Buick#455 Well-Known Member

    Typo in the tire size, actually 295/55/15.
    Good news is my custom forged Pistons were shipped & on the way!
     
  16. hugger

    hugger Well-Known Member

    Just a thought, but I almost promise you that going to a CSU or Maximum Velocity hat at the 6oclock position will improve power and look more pleasing to the eye , just merge your two charge pipes nice and smooth into a single 3in to attach to the hat, just a suggestion tho
     
  17. Buick#455

    Buick#455 Well-Known Member

    Custom Pistons arrived yesterday. Drove them up to the machine shop today.( 2 hrs one way)
    Block will get its final bore tomorrow or Monday am. Hope to get it back next week.
    Then final assembly will commence! Hope to have it completed & in by the end of the month.
     
  18. 300sbb_overkill

    300sbb_overkill Well-Known Member

    SWEET! Can't wait to hear results. GL



    Derek
     
  19. sean Buick 76

    sean Buick 76 Buick Nut Staff Member

    Posted pics for James:

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    MrSony likes this.
  20. Buick#455

    Buick#455 Well-Known Member

    Thanks for posting the pics Sean, for the life of me I could not get them to load.
    So I got the stroker block back from machine shop & managed to put a good dent in getting it back together.
    Crank was stroked & block bored .058, so it should be close to 368 cubic inches! Need to put manifolds & turbos back on, wire it back up & should be good to go. Hopefully I will get it done & fire it up by the end of this weekend.
     

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