Piston Structural Design and Forging

technology in the OEM worlds as well yep it makes a lot of sense the thinner steel rain the steel being a better material lets you make it thinner and you don't lose any strength that way or any ability it's actually more conformable it's got better tensile strength to it so Steel's a better material and then that PVD type of coating which think of if you've got a yellow drill bed at home like a gold drill bit in your drawer and you're like well that's titanium nitride that's a PVD type Coating in fact that's exactly the same kind of coating we're going to put on these Rings is a titanium nitride which is like 2400 Vickers hardness so that old school Molly Rings about 800 Vickers hardness this is literally you know three times harder so it should last three times longer which is what we typically see in a NASCAR deal right the old days that Molly ring would last about One race about 500 Miles it'd be worn out today's stuff we're running 1500 1600 race miles and it's still good yeah is that how those uh the Elmore spec engines work now how they can run multiple races on those things without having to change them all the time yeah those those are crns that's a chromium nitride it's not as hard as the titanium nitride but that's all things pvds are basically a a family of coating so DLC which we're gonna have on The Wristband is a type of PVD coating you got crn Which is popular on titanium valves it's using a lot of things we actually use that on our AP steel rings and then the titanium nitride is is also a type of PVD coating which again the drill bits and anybody that works in a machine shop that's used a gold insert cutting insert that's titanium nitride so it helps extend the life of the parts makes things better so really that's what's cool about this is we're taking this old school part which was Cutting Edge at the time but now we're updating it same bore size essentially but we're adding all the new technology to it and we're getting some compression buff too which is kind of nice grab too definitely doesn't hurt were you able to actually figure out what the compression was with these Pistons because every time I asked that question nobody has an answer for me well I think Dennis Dennis and I might have gone back and forth on it I can't recall at the moment exactly what it was but we can get into that and go and play with the calculator or something if we have to yeah we know the engine was a nine to one engine at the time yeah right yeah so it…