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More low and mid torque required in pulsar 150(2005)

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  • #1

    More low and mid torque required in pulsar 150(2005)

    I have seen several threads here on increasing power of pulsars, but i need to increase torque(low and mid range) and reduce weight for comfortable driving, in other words light and torquey engine. I don't care about the top end pickup. I was thinking engine mods like pulsar135 head(4 valves ) K&N filter, front sprocket, jetting, new exhaust(currently it has a non-exhausttec one) etc. There aren't any experienced mechanics around here, so suggest simple mods, which can be done by bajaj SVC guys.

    I had changed my cylinder block and piston in 2010 to that of pulsar 135 then. So i think the new head will be a perfect fit. All parts are new, as i keep it well maintained, and nothing is old and rusty. I didn't change the spokes, so its still 18 inch wheels.

    Mods plz merge this thread with some other one if you feel so
    Tags: pulsar 150 engine mod
  • #2
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    • #3
      you changed the block piston of P150 to P135



      obviously you will feel less torque...
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      • #4
        revert back to stock piston.
        and the question remains why do i race?
        every finishing line is the begining of a new race.

        #i have learnt to manipulate my own adrenaline and the perception of biking is different.
        #overkill is underrated.
        #how random roads may appear there is always a destination.sigpic
        #i don't subscribe to co-incidence,either it is the rider or the other moron on the road
        (:)people keeps on saying add spark to life, bajaj got hold of that idea and added an extra spark to bike.

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        • #5
          Originally posted by sayank10 View Post
          revert back to stock piston.
          instead of stock he could use 180's block.
          TVS Apache 200 RTR 4v (2019-Forever)

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          • #6
            Originally posted by w4rrior View Post
            instead of stock he could use 180's block.
            not feasible.
            and the question remains why do i race?
            every finishing line is the begining of a new race.

            #i have learnt to manipulate my own adrenaline and the perception of biking is different.
            #overkill is underrated.
            #how random roads may appear there is always a destination.sigpic
            #i don't subscribe to co-incidence,either it is the rider or the other moron on the road
            (:)people keeps on saying add spark to life, bajaj got hold of that idea and added an extra spark to bike.

            Comment

            • #7
              Originally posted by sayank10 View Post
              not feasible.
              heard that it's a direct fit to 150. Even pulsar 200's block will do.
              TVS Apache 200 RTR 4v (2019-Forever)

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              • #8
                Guys, the block piston was changed by my brother, who is using it since 3 years, and the workshop guy in pune had to use 135's block & piston, as they didn't have 150 parts in stock. But i did not find any loss of power or torque after that change, so i didn't complain about it to bajaj. It has got normal torque and pickup, at par with a 7 year old pulsar model, and the silencer is also not an exhausttec one, which i think gives better mid range torque.
                I want to keep the engine lightweight but still torquey and punchy? What if i put k&n, large jets and free flow exhaust, will it be better at low end rpms?
                Please suggest whatever you guys think is ok, as it would be an experiment, and will be reverted back to stock if it doesn't result in desired effects!

                Comment

                • #9
                  Originally posted by arya809 View Post
                  Guys, the block piston was changed by my brother, who is using it since 3 years, and the workshop guy in pune had to use 135's block & piston, as they didn't have 150 parts in stock. But i did not find any loss of power or torque after that change, so i didn't complain about it to bajaj. It has got normal torque and pickup, at par with a 7 year old pulsar model, and the silencer is also not an exhausttec one, which i think gives better mid range torque.
                  I want to keep the engine lightweight but still torquey and punchy? What if i put k&n, large jets and free flow exhaust, will it be better at low end rpms?
                  Please suggest whatever you guys think is ok, as it would be an experiment, and will be reverted back to stock if it doesn't result in desired effects!
                  Pulsar 135 was launched only in September 2009. So the block you are using isn't even from a Pulsar . It is either from a Discover or an XCD. More chances of it being a Discover. But I don't know how this is even possible.
                  Advice is a form of nostalgia.
                  Dispensing it is a way of fishing the past from the disposal, wiping it off, painting over the ugly parts and recycling it for more than it's worth.

                  Antz Travelz!! | South India Exploration Ride | Leh Triplog (Work in progress)

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                  • #10
                    Originally posted by w4rrior View Post
                    heard that it's a direct fit to 150. Even pulsar 200's block will do.
                    actually i don't hav any idea if 200 block will do or not.
                    and the question remains why do i race?
                    every finishing line is the begining of a new race.

                    #i have learnt to manipulate my own adrenaline and the perception of biking is different.
                    #overkill is underrated.
                    #how random roads may appear there is always a destination.sigpic
                    #i don't subscribe to co-incidence,either it is the rider or the other moron on the road
                    (:)people keeps on saying add spark to life, bajaj got hold of that idea and added an extra spark to bike.

                    Comment

                    • #11
                      Originally posted by w4rrior View Post
                      heard that it's a direct fit to 150. Even pulsar 200's block will do.
                      ya, some guys have done it -->

                      180/200 block piston on 150
                      200 block piston on 180

                      with 220's cam shaft and things like that.

                      ---------------------------
                      i love kamlesh kanda and all his avtars....
                      Last edited by princesirohi; 04-03-2012, 01:35 PM.
                      sigpic

                      Tyre Sizes _ Spark Plugs

                      Headlight Focus _ Fork Oils

                      All India xBhp Couple Riders Thread

                      Ashtavinayak + Shirdi
                      Purandar
                      Raigad
                      Dapoli
                      Aurangabad
                      Kaas Plateu & Thoseghar Waterfalls
                      Purandar

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