OST and JE Piston collaborate - New piston!

[oldeskewltoy]

from another forum Wrote:Confused. I dont see how the red area having an extremely large 1/4inch round is going to make or break here... Sure, it's good and nice to have everything be unsharp...

I was debating with myself if it was necessary to include an amount. My apologies... the 1/4 round he was speaking of was somewhere between .030" and .040" (.75mm to 1mm). The stock piston is closer to .065" to .070" (1.6mm to 1.8mm). Much less than .030" isn't much of a 1/4 round. The photo was a bit of an exaggeration, but it was to offer a visual description.

from the same forum Wrote:His friend was probably exaggerating a little to get his point across


The point being almost all custom pistons need a little work for best results

we as customers are thinking hey for that much money they better be ready to go but for a lot of items it just don't work that way

My friend knows that I've been hanging back (part development) in the 4AG world for a long time... he knows I want as perfect a part as I can possibly deliver... so he was digging at me for saying the piston above was ready.... when in his mind (and mine) it should have gotten more of a radius...

My embarrassment is everyone else's "free" lesson.


His was one of a few observation on the FSR skirts that caused me to have these built with full skirts.