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

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    Rookie rajsteelsprockets's Avatar
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    Thumbs up rtr semi forged high compression piston both 160cc n 170cc done by my self

    this kit incresed my initial power for rtr 160 by abt 10% n fuel efficiency by about 5% for more details please pin me...!
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    Smile

    Topic Approved & moved to GBD.

    If its fitment was fine, then that's no surprise that mileage and power will go up slightly. Congratulations buddy.

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    lol...!yeah n thank u buddy y would i make a mistake i am doing this from past one and half year...!

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    Default Interesting news :)

    Quote Originally Posted by rajsteelsprockets View Post
    this kit incresed my initial power for rtr 160 by abt 10% n fuel efficiency by about 5% for more details please pin me...!
    HI Raj, Very few people have the resources and also the know how of how to forge pistons. Could you elaborate more on what way you got the piston made. The cost involved and can they make a piston of any dimension.

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    srikany sorry buddy...! nothing personal some thing's cannot be revelead!! i can tell u one thing these piston's are relly very strong

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    @Rajsteelsprockets: You don't have to reveal anything related to the trade secret but a bit of info on what exactly you did how did you do it.. looks like RRGS piston however i am no expert in this division.



    Cheers,
    NitinGirish and srikany like this.
    A quote by a toilet, " use me well, keep me clean, i would never tell anybody whatever i have seen.." :P

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    Quote Originally Posted by rajsteelsprockets View Post
    srikany sorry buddy...! nothing personal some thing's cannot be revelead!! i can tell u one thing these piston's are relly very strong
    Nice work on your engine upgrade.
    No piston can withstand a bad tune, I've seen JE forged pistons with holes melted straight through them, others that have been melted in half, Yes these are extremes but never underestimate the destructive power of a poorly (lean) tuned engine with the combustion temps higher than the forged alloy's melting point.

    I'm using a 66mm RRGS forged piston in my 200cc engine. It doesn't look like the one in the pic, Then again there are numerous types out there.

    Can you explain what a "Semi Forged" piston actually is?
    I'm aware of cast (factory), Hypertectic (cast with metal inserts) and forged (heated, forged with big press, tempered etc)
    Cryo treatment of a cast piston will help increase its strength (providing it withstands the cryo process)
    Where about is this semi forged piston sit in this lineup?
    Last edited by Mad Mik; 01-13-2013 at 06:13 PM.
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    @shiv18 de whole mystry beind these is dat de high compression helps u to burn more air at a faster rate so an increase in fuel efficiency n initial torque...i.e it does nt struggle when carrying wieght r in a hill station in simple words...! it is as simple as dat bt de pison of this kind is semi forged which mean's it is more stronger dan which de company provide's n reliable until n unless u do a good running n set de barrel ....!

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    @mad mik forged simply mean's a strong piston which does nt crack etc etc... u just google only about forged type u will undestand better ...! den if u undestand wt forged is i'm pretty u will undestand wt semi forged too ...n forged piston's ar used in diesal engine's due to de high compression ratio....!to withstand de pressure...!

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    Rusted Mad Mik's Avatar
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    Quote Originally Posted by rajsteelsprockets View Post
    @mad mik forged simply mean's a strong piston which does nt crack etc etc... u just google only about forged type u will undestand better ...! den if u undestand wt forged is i'm pretty u will undestand wt semi forged too ...n forged piston's ar used in diesal engine's due to de high compression ratio....!to withstand de pressure...!
    Thanks for the explanation but a true "forged" piston is not the same as other pistons.
    Forged piston starts off as a cylinder of alloy, cut to size with a saw, goes through a series of presses, compressing it to shape, numerous firings/heat treatments before being turned out on a lathe to specs. Basically squeezed together making it a more dense and heavier piston.
    A cast/stock/factory piston is poured into a mould then machined to spec. Much lighter and weaker.

    Forged pistons metalurgy is different again to the cast pistons.

    Forged pistons expand more than cast pistons.

    I'm well aware of different pistons and different engines, My job entails maintaining diesel engines (V6-V12, supercharged and turbo charged)
    Diesel engine pistons are vastly different to a gasoline piston engine. Piston crown is larger on diesel Vs petrol as the top ring lands are further down the piston and the gudgeon pin is further down the piston than on petrol pistons.
    I also use JE pistons on my car engine builds so I know a thing or 2 about forgies, Semi forged on the other hand......Sound like something a marketing department made up.

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