1) sms language.
2) back to back posts without using multiquotes.
3) refusing to divulge details and clarify doubts.
4) the fact that you can't simply make pistons yourself unless you have the facilities of casting and machining, forget making forged pistons. i am not aware of any facility in india which can pistons as per your specs in very small numbers like 5 pistons or 2 pistons etc..
5) this is actually product marketing, is this allowed on xbhp? time and again i have asked this question, and remains unanswered.

i recommend that this thread should be closed.

1- Forged mean grain orientation, due to the movement and most importantly direction of flow of metal during the forging (basically pushing metal into shape). Any mistake ends up in a catastrophe. A lot of research and trial and error goes into refining the forging process so that the grain orientation is correct (i.e. perpendicular to the stresses), and experience is needed there. Everybody (nearly) can cast a piston (actually: injection= forced casting)...still having to know the injection process in order to limit oxidation during the casting! Few can forge, and the investment is such that it is valid only if produced in a sufficient quantity.
2- Most (by far) of diesel engines use cast pistons. Your affirmation is unfounded.
3- The "semi-forged" (commercial) appellation mostly refers to a process consisting of pressing the dome (of a piston), which is effectively (local) forging, but this from a pre-cast shape instead of from a billet like in an entirely forged on. Not bad at all, though.
4- You either come here to share information, or to sell your products. There is no industrial secrets there, and your saying that "some things that can't be revealed" gives the feeling that you are here only to sell your product. You are welcome in the first case, not in the second one.

^^^ flawless and to the point!!! Perfect

princesirohi - First of all i am new to this forum and was not well versed with the rules on this forum.To be clear what i ment by semi-forged was these pistons are stronger than cast pistons and are manufactured to withstand more pressure. Secondly I did not wanted to reveal the details of the price because i had no intention of marketing the product,i just wanted to share my experience in this forum inorder to gain more knowledge from you guys and one more thing is that the piston is much thicker than the cast piston which makes it a stronger one.

Please don't take it as a offence but if you want to learn and share knowledge then lets begin. If you are talking just about for more info to pm you, it sends out a wrong message. Since, you are new to this forum then i would suggest you can start with the experience of how it all began, what research you did, whether it is your own creation the piston or you got it from some seller. What were the technical aspects that were kept in mind before, during and after the installation. I believe sharing knowledge increases its worth! Lets start from there then other senior riders can help you putting things together in a much better format making your riding experience even better and also for newbies it will be something to look forward to.

If you still intend to keep things via PM then you are defeating the purpose of starting this thread with the intention of learning things at the first place. Hope this is much more clearer now.

Cheers,

thanks a lot , and my apology to against forum rules ,I really took time to get adjusted to the forum. I will be starting a new thread very soon which i worked on recently.And to how it all started to me,the passion and karizma in me about bike's n engine's.

You don't have to start a new thread mate. This existing thread can be used for the same purpose. You can refer to some of the existing threads here on pit stop and general biking discussion. That's a start.

Cheers,

@shiv18 thanks a ton! for your concern.

Re: rtr semi forged high compression piston both 160cc n 170cc done by my self

So is there any notable advantage for semi forged piston from stock piston?
Also when fitting a 170 block on 160 was there any need to change fueling? (tune carb,upjet)
Or the increase in cylinder volume is negligible?
Can some one explain how a slightly bigger bore increases the efficiency?
And how much the size can be varied with or without changing fueling?