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4-stroke Performance - Yamaha R15 - Performance goodies

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  • #46
    @amulu - You can plug the bigbore and exhaust with the existing stock ECU itself. It will work. With the new ECU, it will work even better. The complimenting factor will be better.

    @Zenash - Thanks. Great to hear . Price of goodies will only be over mails.
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    • #47
      Originally posted by Joel View Post
      The bigbore is a plug and play. The cylinder head can still flow a lot. The cylinder head is very well casted and there is little that you can correct anyways. Unless you are pushing the engine to next levels.

      whats this bigbore ??
      Drop da gear and Disappear.

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      • #48
        Hey Joel,
        Man i still remember the 1st day i met u, how u wanted to do change the entire biking scenario in India, well u have come leaps and bounds dude congrats. The exhaust works like a charm man am lovin it big time, only thing missing is u brand name on it bro.
        Well there r so many things i want to grab from that list its just too tempting. Soon enough i will cheers bro

        AKSHAY
        Three things tell a man: his eyes, his friends and his BIKE


        aka AKSHAYsigpic

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        • #49
          Originally posted by nikhil9860 View Post
          whats this bigbore ??
          A larger capacity cylinder kit. In this case 165cc. Please read-up more for info.

          @buggy - Thanks man. Glad to know that you enjoying the pipe
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          • #50
            The new ECU was tested at the track on a bone stock bike and the results are very encouraging. More to follow over the days.
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            • #51
              Originally posted by Joel View Post
              The new ECU was tested at the track on a bone stock bike and the results are very encouraging. More to follow over the days.
              Waiting. And Saving.
              You get the point?? :D
              -----------------------
              sigpic

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              • #52
                Originally posted by svjhonda View Post
                Waiting. And Saving.
                You are enjoying ripping the bike on the Lake Gardens flyover,arent you??

                The exhaust sounds really nice,if it indeed was you whom i saw
                You can take the ride away from me but you cannot take the rider out of my soul.........

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                • #53
                  Hi Joel
                  I am Rajiv. I have moderate experience modding bikes and I am big enthusiast of engines and various aspects related to it. So this thread caught my attention. Btw cant you rebore the stock cylinder to fit your piston instead of putting all new cylinder. I asked because somebody was selling his r-15 cylinder somewhere on the site.

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                  • #54
                    ^Nope you cant do that. The stock cylinder does not have a sleeve. It only has a chrome coat on machined aluminum. Also the cost of a OE cylinder kit from yamaha costs nearly 8k including piston, rings etc. Which is on the expensive side.
                    My kit has a custom factory cast sleeve, and the whole process is a bolt-on. For all the power gains u get and the reliability it offers.
                    I also have stock of the next oversize piston for my bigbore kits, so you can use the first size for say some 30k kms, then go for 0.25, then 0.50 in similar intervals. Which means, this is one stop solution for your engine to run miles and miles. The stock cylinder looses compression and sealing after 20k kms from what I have tested. This is if the engine was maintained very well.
                    This bigbore is the last thing you will ever need to get such reliable power.
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                    • #55
                      Ya right the much hyped Yamahas DiASil cylinder. Are you sure it lasts for only 20k Kms. If so its a big goof up by Yamaha. I cant imagine changing piston and cylinder every 20k Kms. So in their add campaigns they forgot to mention 8k+labor charges every 20k kms, what was yamaha thinking.

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                      • #56
                        ^20k kms with good compression and performance I mean. It will run otherwise, but not as good as what it was from factory. Thats what i consider as cylinder life and not the last stage of seizure or excess piston slap.
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                        • #57
                          hey great work. I sent you an email so waiting for your reply.

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                          • #58
                            hey joel

                            why cant we use stock ECU and remap it?
                            We xbhpians pledge to wear helmet while riding

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                            • #59
                              Hi joel.
                              Your upgrades for the bike sound amazing.
                              The R15 itself is a great bike and you making it so much better is really awsome.

                              I was thinking about upgrading my bike but me being a student,
                              money is always an issue So i was thinking of starting slow.

                              I would like to know more about your ECU and how much it would cost, gains, etc
                              Maybe soon i can save enough to buy one.
                              Hope you will be able to help me.
                              Thanks
                              MY RACING CAR BUILD
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                              • #60
                                @RhythmRana99 - You cannot do anything with the stock ECU. It cant be rewritten. Hence developing an all new ECU.

                                @Vikram - Will keep u posted over mails.
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