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Porsche 3D Printing Engine Piston Technology 3D printing technology is already used at Porsche in prototype construction, manufacturing spare parts for classic sports cars as well as in other areas. In cooperation with its partners Mahle and Trumpf, the sports car manufacturer is now establishing a new milestone in the use of additive manufacturing processes for highly-stressed drive components – for the first time, the pistons for the high-performance engine of the 911 flagship model, the GT2 RS, are now also being produced with a 3D printer. 3D printing allows the pistons to be manufactured with a structure that is optimised for the loads acting on the pistons. As a result, the pistons from the advance development project weigh ten percent less than the forged series production pistons. They also have an integrated and closed cooling duct in the piston crown that could not have been produced by conventional methods. “Thanks to the new, lighter pistons, we can increase the engine speed, lower the temperature load on the pistons and optimise combustion,” explains Frank Ickinger from the advance drive development department at Porsche. “This makes it possible to get up to 30 hp more power from the 690 hp twin-turbo engine, while at the same time improving efficiency.”

Hi, my neighbour's 6 pot brake calipers having slight brake fluid leak from the piston area. Most likely due to damage rubber O ring seal within. Anybody got contact or know of any wkshop that can repair brake caliper or hardware store that sell various/custom size rubber O ring. Thank you in advance. Regards,

my stock CR is 11.5, if change to 12.5 or 13.1 but still using 98ron, will there be any diff? i know 13.1 can increase around 20hp but must using racing fuel to get the result.

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just wonder wat is the power gain one could expect from such a setup?

Hi,, Anyone knows is there any workshop where I can up-size my Piston for my QG16DE/ 1.6 to a QG18DE/1.8 piston....................... Or maybe just up-size my QG16DE piston .................. TKs for the help..................

Hi guys, I have a friend who is driving starlet XL his piston is jam and found spark plugs is wet. Problems is when driving 2nd gear and 4th gear no power and drag to 3k rpm also useless. Any ideas what could be the fault? From maw

Back in the good old days when cars were all carburetted, one of the prefered way to enhance the performance is to do thing like valve polishing, valve seat adjusting, cylinder head surface polishing, port correction, boring and honing, etc, etc. This increase the enginee HP output by a big amount as the fit between moving parts are almost perfect and as a result little energy is lost to friction and heat build up. I wonder if this method is still being used today or has any one tried it.