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My twin turbo 401 sbc buildup so far

Discussion in 'LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech' started by Orr89rocz, May 10, 2009.

  1. Orr89rocz

    Joined:
    Nov 11, 2008
    Motor/trans is in the car as of last weekend.

    This weekend I had thurs,friday off so i got started on the exhaust.



    3" downpipes into 3" ypipe. Vband connections joining them.


    merging into the old y collector from my last year exhaust. 3" inlets to 4" single outlet.


    Dynomax muffler from last year in the same location except i raised the back end up alittle more to tuck it under the car more. Hung low last year but never really bottomed out. This year its up abit more and so is the front so i should have no problems with bottoming out on most roads/bumps
     
  2. 6D9

    Joined:
    Jan 22, 2007
    Looks killer man...cant wait to here the new track times! Exhaust fab work looks great as well.. :2thumbs:
     
  3. camaroe3

    Joined:
    Mar 11, 2006
    that is a sweet looking build man!


    how much power is that shp block good for? Dart is making a lt1 SHP . should be coming out in a month . I hurd 600 hp for the shp block. i knew that had to be a joke.
     
  4. Orr89rocz

    Joined:
    Nov 11, 2008
    I figure the SHP is conservative rated and if its a better block than a factory GM block, then this has to be able to hold 1000hp.



    Just gotta weld up the y pipe
     
  5. Orr89rocz

    Joined:
    Nov 11, 2008
    Whats the difference between plumbing vacuum lines for the wastegates and BOV to a spot before the throttle body rather after the throttle body in the intake plenum?

    I got alot of vacuum fittings in my plenum i'd like to use
     
  6. jay_rich

    Joined:
    Feb 14, 2008
    lookin good man! your gonna love it! I drove mine all over yesterday and just cant get enough! I cant wait to build my next setup!

    Jay
     
  7. whiteghost

    Joined:
    May 31, 2007
    reference your BOV after your TB. The BOV needs to see vaccuum to open quickly and avoid stalling the turbos
     
  8. jay_rich

    Joined:
    Feb 14, 2008
    Loving the work man! I cant stop looking at pics of your car! its amazing.

    Jay
     
  9. nosnovi

    Joined:
    Apr 8, 2006
    sick..lots of high quality work there as well. :2thumbs:
     
  10. Wild83C10

    Joined:
    Aug 5, 2009
    What piston are you running and what is your deck height? Just wondering how you got the 9:1 compression with the 65cc heads. I have the AFR 210, 65cc heads and would like to get down to 9:1. Thanks
     
  11. Orr89rocz

    Joined:
    Nov 11, 2008
    zero deck block, JE 28cc dish pistons with .041" gasket.
     
  12. 84tt monte ss

    Joined:
    Jul 25, 2006
    You have a nice car, the wheels look slick and the tt setup looks good....... :2thumbs:
     
  13. Orr89rocz

    Joined:
    Nov 11, 2008
    So far so good. Waiting for accessory brackets and its ready to fire just about


     
  14. Orr89rocz

    Joined:
    Nov 11, 2008
    Summit radiator overflow catch can mounted below battery box area



    Vacuum line runs and shot of the oil feed assembly for the turbos. Ordered abit shorter 4an line than i needed so i used fittings to make up the distance. Worked out great.


    Moroso vented breather can for valve cover venting. No pcv on this car anymore
     
  15. Orr89rocz

    Joined:
    Nov 11, 2008
    Fuel filter mount in stock location. Fuel Lab filter with -8an feed lines


    Fuel lines come in from back driver side and return same location. Fuel Lab regulator, boost referenced.


    3-bar MSD Map sensor


    March bracket and pulley kit for electric waterpumps. Uses stock thirdgen alternator and power steering pump. CSR electric water pump.
     
  16. Orr89rocz

    Joined:
    Nov 11, 2008
    Basically done. Need to fill with fluids, prime oil, put dizzy/plugs in and go for it. :) Cant wait. Exhaust aint on it yet but hope to do that tomorrow after test fires


     
  17. slackercracker

    Joined:
    Aug 13, 2006
    what kind of price did you get the SHP block for and where from? I have been waiting for someone to test it to see what it will take,BTW great build and car.....subscribing
     
  18. Orr89rocz

    Joined:
    Nov 11, 2008
    Call Carl at CNC Blocks Northeast. 207-892-7215

    Fully machined and checked, ready to assemble parts for 1795. They are advertised as ready to run from dart but alot of them dont quite check out to spec. Carl will remachine everything to proper tolerances.

    I also got my rods/crank/pistons from him as well. He built the motor with those items on hand to setup the clearances and then balance the assembly and then shipped loose to me for final assembly
     
  19. tt350chevelle

    Joined:
    May 25, 2006
    Just a word of warning,in case you plan on running your car down the track, NHRA rules do not allow the fuel regulator to be mounted on the firewall.

    Brad J.
     
  20. Orr89rocz

    Joined:
    Nov 11, 2008
    Did not know that, I'll have to look into moving it perhaps. My track isnt considered NHRA and I dont think they will look for it but who knows.
     
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