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light weight crank pulley and other ?'s

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    #1

    light weight crank pulley and other ?'s

    i had a few questions about the aftermarket light weight crank pullies.....

    1. are they really worth it and is there any dyno proven graphs that show the gain

    2. since the engine is balanced almost perfect from the factory can this possiably throw off the balance of the motor

    right now my mods are i/h/e, and im looking to get the h23/a6 im, delta 272, stage 3 clutch w/ 12lbs flywheel, maybe a crank pulley and some nitrous, with these mods minus the nitrous what can i expect for power levels and 1/4 times?

    thanks in advance


    Adam
    TEH SICKNESS IS RISING
    Tags: None
    #2
    Searching will yield results.

    Harmonic Dampeners.

    Comment

      #3
      You might get 5 horsepower from a lightweight crank pulley... nothing amazing, but seeing as there really is no tradeoff, it's a nice gain.

      I've been running a UR pulley for years with no issues. I wouldn't dare use a cheap ebay pulley, though. Get Unorthodox Racing, or don't bother.






      Comment

        #4
        This is true. I have also been running unorthodox racing crank, alternator, and power steering pullies for years now and they are great.

        Comment

          #5
          With the unorthodox pullies are you guys noticing a bit tighter throttle response? Still using stock pullies at the moment.

          Comment

            #6
            i have most of those mods in a cd chasis. i/e/ur pullie/delta 272/ camgear/8lb flywheel/m2s4 tranny/h23 tb. this is on a f22b2 motor and a little bit heavier car but i ran 15.3 about a month ago.

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              #7
              this was also a stipped interior. aka no seats or spare.

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