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build diary : blown alcohol v6

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  • build diary : blown alcohol v6

    im just gonna copy and paste the thread from tgo that i started
    well the decision has been made, as of today(Friday) my rs is no longer a street car.
    ive decided to do a real serious build,im still going to use my current engine/drivetrain setup,except im gonna turn the car into a purpose built drag car.

    as to give u an idea were im going with this

    target car wieght is gonna be 2,700-2,800 pounds
    automatic trans
    back halfed/4 link rear suspension/mini tub'ed ( for future sbc if i so decide to go that route )
    fiberglass doors and lexan windows
    the engine is going to be my 3.3L 60* v6 except im going to bump compression back up to 11.0-1+ with aluminum heads
    the car will be alky injected with megasquirt ems.
    and a single garrett gt40r turbo

    anyways im hoping to have this semi completed/finished by late summer
    and as i work on this ill be posting pics starting this weekend, with the gutting of the car and removal of the rear floor section


    --------------------------------------------------------------------------

    i did start the project but after removing the gas tank and some other stuff on the car to prepare to cut up the rear floor/truck section,i decided i just couldn't cut this car up.

    luckily for me i have a friend ive been dealing with over the last 3-4 years who umm sorta specializes in 3rdgen f-bodys.he sorta runs a 3rdgen carp parts/car place out of his house.any given day he can have 4-12 cars at his house.

    so i gave him up a call and he has a nice 87 iroc with no motor/trans and a partially gutted interior that im going to buy for 500$'s to complete this project.

    i have 2 assembled 3.3L engines, one will go into the rs as a street car,the other will make its way into the new car with a gen 3 top end. i figured the new cr will be around 12.0-1 once i do some chamber mods



    as far as how much boost ill run i don't know yet,prolly 14 psi range maybe more
    im looking at 2 classes right now
    super pro which is 7.50 - 10.99 brackets
    or super street which runs on a 10.90 index
    both of which allows turbos/superchargers and alcohol as fuel
    though super street i believe lets me drop down to a min weight of 2,000 pounds(though i doubt i could get the car this light) i have to get a current rule book though, mines a year or 2 old at this point



    when i say alky i mean this engine is going to run on straight ethanol,gas will be used to cold start the motor though on cold days at the track.

    comments/suggestions,, ur crazy for doing this is welcome for replys lol
    sigpic

  • #2
    are you going to still be running efi, or are you going with a mechanical injection setup???

    Comment


    • #3
      Originally posted by sharkey View Post
      are you going to still be running efi, or are you going with a mechanical injection setup???
      i have both.
      but im deff gonna go efi with the megasquirt
      sigpic

      Comment


      • #4
        why not use a 3500 topend ?

        man i cant wait to hear this thing idle, and take a run down the track

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        • #5
          Originally posted by sil View Post
          why not use a 3500 topend ?

          man i cant wait to hear this thing idle, and take a run down the track
          the valves wont clear the bore
          sigpic

          Comment


          • #6
            This new Iroc got a title? Haha.

            14.60 @ 96.33 for now...

            Comment


            • #7
              What size valves are you going to use? How did you make them 3.3l?
              Ben
              60DegreeV6.com
              WOT-Tech.com

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              • #8
                Originally posted by SappySE107 View Post
                What size valves are you going to use? How did you make them 3.3l?
                they have an .080 overbore.i would like to swap in some larger valves but that means cutting the heads for new seats.so ill prolly leave the stock sized valves in there,im trying to get a set of iconel ex valves made up,as im afraid i may burn up a set of stainless ex valves.

                had i used iron heads i would have swaped in 1.82/1.50 valves.

                the 3500 heads wont clear the 3.1 bore even with a .080 over bore right????
                if they will id deff go for the 3500 topend
                sigpic

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                • #9
                  the 3500 heads wont clear the 3.1 bore even with a .080 over bore right????
                  if they will id deff go for the 3500 topend
                  It would be close, I would also like to know the answer to that...
                  Links:
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                  • #10
                    .060 will clear so .080 is fine. You will need a gasket for the 3400 I think though to have the right bore size in the gasket. You can run a 1.8/1.52 valve set if you want, though the overlap would need to be checked per application. I doubt you would have both open that far at the same time to cause a problem.
                    Ben
                    60DegreeV6.com
                    WOT-Tech.com

                    Comment


                    • #11
                      Originally posted by kflo 93 gt View Post
                      This new Iroc got a title? Haha.
                      yes it does, i plan on registering and insuring the car, of course im going to be getting collectors plates so im exempt from emmisions testing
                      sigpic

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                      • #12
                        ROFLMAO, does that mean title as in a name (ie Betsy), or title as in proof of ownership?
                        Links:
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                        FaceBook
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                        • #13
                          rofl it has a title as in proff of ownership, but no name as fo yet
                          sigpic

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                          • #14
                            an update

                            ok well its been a while

                            i got the heads swaped and mounted the new manifold, well the manifold wouldnt sit right,thinking it was warped i put it in the bridgeport and took off .010, well the manifold was flat. turns out my driver side head was twisted.
                            the end near the firewall was rolled out.so the manifold would not seal.

                            new heads are on the way.

                            i also just finished ordering up my new fuel system, the dam thing cost just about as much as my entire engine minus the turbo






                            just about 1,000$'s just in a pump regulator and an lines its safe to say my pump and regulator will never be to small, the pump is good for 2-200 psi and 3,000 pph @ 60 psi

                            and some 120# msd competion injectors
                            im a lil worried that the injectors may be a lil small but there the biggest i can find so there gonna have to do.


                            whats really gonna suck is mounting that pump down low may interfere with the 3 inch downpipe going out the passenger side


                            stuff should be here come early next week
                            sigpic

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                            • #15
                              why not high mount the turbo and put it into the airflow since this will be a track car anyways?

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