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  • Dual Power Adders

    Anybody running boost + nitrous? I have a ProCharger P1SC, should've bought a D1 from the get go. It costs $1300 to upgrade from a P1 to a D1 so I could use a lot of NO2 in the meantime.

    What's the hp limit of a stock 305 block?
    sigpic

    88' Trans Am 350 TPI





  • #2
    alot of people run a 25-50 shot to cool the intake charge temp

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    • #3
      Lots of people run a 50 shot very few run 75 shot, just make sure your not running lean and you will be ok.....

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      • #4
        not a big fan of nos :/
        Mods:
        Ram Air Intake (CAI)
        K&N Filter
        Polished Throttle Body and MAF Sensor
        De-screened MAF Sensor
        Tightened Throttle Body Cable
        Performance Button Setting Changed for Torque
        160* HypterTech Thermo
        Water Wetter
        New Distributor, Plugs, Wires
        New Water Pump
        LT4 Knock Sensor
        Flowmaster 40 Series Muffler
        TB AirFoil

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        • #5
          Originally posted by pacefabricating View Post
          Lots of people run a 50 shot very few run 75 shot, just make sure your not running lean and you will be ok.....
          I'm running a bullseye PCU for engine tuning so running lean won't be a problem. Would you use a wet or dry setup? I know NOS has a wet plate setup made specifically for the TPIs.
          sigpic

          88' Trans Am 350 TPI




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          • #6
            a bunch of people use fi + n2o.

            myself, twin 67s and 100 wet shot.

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            • #7
              Originally posted by bmwmcars View Post
              a bunch of people use fi + n2o.

              myself, twin 67s and 100 wet shot.
              what's your boost and c.r.?
              sigpic

              88' Trans Am 350 TPI




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              • #8
                Originally posted by scholtmj View Post
                what's your boost and c.r.?
                8.5:1, setup to run 28psi.

                its not stock.

                but in any case, n2o+boost does work quite well if you build and tune it right.

                are you runnin a stock bottom end? if so, i'd be a bit concerned. the block itself can take some power if built properly (crank, 4bolt, block fill, rods, pistions etc).

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                • #9
                  Originally posted by bmwmcars View Post
                  8.5:1, setup to run 28psi.

                  its not stock.

                  but in any case, n2o+boost does work quite well if you build and tune it right.

                  are you runnin a stock bottom end? if so, i'd be a bit concerned. the block itself can take some power if built properly (crank, 4bolt, block fill, rods, pistions etc).
                  H-beam rods, forged pistons, stock crank with 2-bolt mains. I'm running 8psi right now but will throw on the 10psi pulley in a week or two.

                  As soon as the 305 eats it, I have a 400 block ready to be built. T/A 6.6!
                  sigpic

                  88' Trans Am 350 TPI




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                  • #10
                    id be a little concerned on a stock motor. Maybe think about some meth. You can spray some meth which will allow you to safely add a little more boost.
                    sigpic

                    98' Trans Am - Huron Speed Turbo Car

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                    • #11
                      Originally posted by scholtmj View Post
                      H-beam rods, forged pistons, stock crank with 2-bolt mains. I'm running 8psi right now but will throw on the 10psi pulley in a week or two.

                      As soon as the 305 eats it, I have a 400 block ready to be built. T/A 6.6!
                      do you have an intercooler? what are your intake temps?

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                      • #12
                        Originally posted by bmwmcars View Post
                        do you have an intercooler? what are your intake temps?
                        I have a 2-core air to air intercooler. I'm not sure what the intake temps are but I'm running stock 9.3:1 compression ratio and 8lbs of boost on 93 octane without the computer taking timing out due to knock. It 10lbs causes knocking I'll switch to 100 octane or put the 8lbs pulley back on.
                        sigpic

                        88' Trans Am 350 TPI




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