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MTC 1425 Bigblock is Here !!!

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    #1

    MTC 1425 Bigblock is Here !!!

    Was going the nitrous route next year to get in the 5's, but came across this bigblock and it is cheaper than a new nitrous kit.

    So come this winter I'll be installing the race cut tranny and getting the upper case bored out.

    Looks like I'll make my goal of running into the 5's for 2005. My 1166 kit picked up 7 tenth's so what do you think a 1425 kit can do???

    Can't wait until next year and will see what it can do. I'm thinking of not using wheelie bars at first just to see how she will run.
    1166cc 1/8 ET 6.09@111.88
    1166cc on NOS, 1/8 ET 5.70@122.85
    1395cc 1/8 ET 6.0051@114.39
    1395cc on NOS, 1/8 ET 5.71@113.98 "With a broken wrist pin too"
    01 Sporty 1/8 ET 7.70@92.28, 1/4 ET 12.03@111.82
    Tags: None
    #2
    Jake why do you want to eliminate the wheelie bar???

    Comment

      #3
      You better do the crank while it is apart.

      Comment

        #4
        Yeah, if you want to see what she can do, keep the wheelie bar!
        Currently bikeless
        '81 GS 1100EX - "Peace, by superior fire power."
        '06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."

        I ride, therefore I am.... constantly buying new tires.

        "Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt

        Comment

          #5
          I'll still use it at a later date. My thinking is that I should be able to get into the 5's without it, and when I do run it, it will knock off 2-3 tenth's more.

          As for the crank I'm afraid to even touch it. Must have close to 1000 runs on her by now and it still ticking like a Timex. But I guess I should do it.
          1166cc 1/8 ET 6.09@111.88
          1166cc on NOS, 1/8 ET 5.70@122.85
          1395cc 1/8 ET 6.0051@114.39
          1395cc on NOS, 1/8 ET 5.71@113.98 "With a broken wrist pin too"
          01 Sporty 1/8 ET 7.70@92.28, 1/4 ET 12.03@111.82

          Comment

            #6
            Originally posted by RacingJake
            I'll still use it at a later date. My thinking is that I should be able to get into the 5's without it, and when I do run it, it will knock off 2-3 tenth's more.

            As for the crank I'm afraid to even touch it. Must have close to 1000 runs on her by now and it still ticking like a Timex. But I guess I should do it.
            I think if you miss a shift or two with the added mass you may twist her for sure.

            Comment

              #7
              Yeah, I'd like to make it my little shootout bike without bars running in the 5's.

              When I get serious, that's when the bars go back on.

              I'm thinking of keeping max RPM at 9K just to be safe.
              1166cc 1/8 ET 6.09@111.88
              1166cc on NOS, 1/8 ET 5.70@122.85
              1395cc 1/8 ET 6.0051@114.39
              1395cc on NOS, 1/8 ET 5.71@113.98 "With a broken wrist pin too"
              01 Sporty 1/8 ET 7.70@92.28, 1/4 ET 12.03@111.82

              Comment

                #8
                Originally posted by RacingJake
                Yeah, I'd like to make it my little shootout bike without bars running in the 5's.

                When I get serious, that's when the bars go back on.

                I'm thinking of keeping max RPM at 9K just to be safe.
                I 'M THINKING OF THE 9k MAX FOR MY STREET ENGINE TOO JAKE.

                But in what range do your cams seem to do the most work??
                Or doyou degree them for the torque in that range??
                Darn caps key again

                Comment

                  #9
                  Re: MTC 1425 Bigblock is on the way !!!

                  Originally posted by RacingJake
                  Was going the nitrous route next year to get in the 5's, but came across this bigblock and it is cheaper than a new nitrous kit.
                  Bigger is always better!

                  Comment

                    #10
                    86 CI...nice. "Go big....Go" fast. I think Einstein said that.

                    Comment

                      #11
                      I would def lower the RPM limit maybe even to 8.5K You will have a lot more weight swinging around. You may want to thing about some aftermarket rods while it is appart.
                      Since you have to redo everything why not get another engine

                      Comment

                        #12
                        stock rods will be fine for his purpose. I run 5.0s on stock rods. I would definitely get Stan Gardner at GRC to go through it.

                        Have a mtc 1425 setup with je's for sale $400

                        NoBars@aol.com

                        Comment

                          #13
                          Here's a pic of her



                          Looks great, it's even in better shape than my old 1166 combo. I should be able to get over a thousand runs on her next year. It is even o-ringed.

                          Last race is this weekend so after that it's tear down time to get it bored.

                          I think high 5's are in the bag for next year :twisted:



                          Here a 1425 and 1075 piston
                          1166cc 1/8 ET 6.09@111.88
                          1166cc on NOS, 1/8 ET 5.70@122.85
                          1395cc 1/8 ET 6.0051@114.39
                          1395cc on NOS, 1/8 ET 5.71@113.98 "With a broken wrist pin too"
                          01 Sporty 1/8 ET 7.70@92.28, 1/4 ET 12.03@111.82

                          Comment

                            #14
                            I think you need to buy an ex pro stock bike

                            Comment

                              #15
                              Re: MTC 1425 Bigblock is on the way !!!

                              Originally posted by lecroy
                              Originally posted by RacingJake
                              Was going the nitrous route next year to get in the 5's, but came across this bigblock and it is cheaper than a new nitrous kit.
                              Bigger is always better!
                              Put the NOS on as well, then it should really fly!

                              Comment

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