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    Thread: Twin Turbo Help

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    1. #1
      Join Date
      Sep 2004
      Location
      SoCal
      Posts
      238
      Quote Originally Posted by ItDoRun
      I've talked myself into the twin turbo set-up for my 68 Camaro, but I need some recommendations on how to build the motor to support the boost. First, let me say that my goal is to have a streetable car that runs 10.50's. This should be easliy achievable from what I have heard. The car has a 350 2-bolt main block. I will be adding aluminum heads (not sure of what brand or cc). What I'm not sure of is what rotating assembly (forged or cast), pistons, and especially cam to use. I'm looking at probably 12-14 psi boost with GN turbos. Any help would be greatly appreciated. If there is any additional information that is needed from me, let me know.

      Thanks
      Personallly I like to over build the engine because I know damn well that I am always wanting to go faster. Once you see what the car will do on pump gas & low boost you will be amazed at what happens with race gas and high boost.

      I would get splayed main caps, steel crank, forged 8.0:1-8.5:1 pistons, & H-beams. As far as the heads are concerned there are way to many options to really pinpoint a specific brand(Everyone has an opinion). I would go with a 72 cc or higher chamber. Cam specs are more complicated but typically you are looking for something with very little overlap. I'd recommend you talking to any of the big manufacturers crane/comp/crower etc because they all have turbo specific cams off the shelf.

      What are you going to use for fuel management?

      '04 IS300 VVTi GTE swap GT35R etc (dead tranny - looking for LS swap)
      '63 Street Fighter Nova(Sold)
      '06 Magnum SRT8 KIA 10-25-13


    2. #2
      Join Date
      Feb 2006
      Location
      Southeast Louisiana
      Posts
      104
      fuel injection. I have a friend who is an EFI wiz, and he'll be helping me piee together the EFI system.
      1968 Camaro, 350 SBC, TH350 w/3500 Stall, 12 Bolt, 4.56:1 Gears. Currently in progress...DSE Minitub Kit, DSE front suspension, DSE SFC's, 17" Budniks, Baer front and rear discs.

      http://www.cardomain.com/ride/2391864

    3. #3
      Join Date
      Sep 2004
      Location
      SoCal
      Posts
      238
      Quote Originally Posted by ItDoRun
      fuel injection. I have a friend who is an EFI wiz, and he'll be helping me piee together the EFI system.
      Good luck with the project!
      '04 IS300 VVTi GTE swap GT35R etc (dead tranny - looking for LS swap)
      '63 Street Fighter Nova(Sold)
      '06 Magnum SRT8 KIA 10-25-13




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