instead of putting a dish in a set of forged pistons i still had , and compromising piston top thickness (strenght) i ordered a special set in hopes of a stronger piston ..
The dish looked a bit deeper then i thought it would need to be , so i measured it and they fabricated a 21cc dish and not the 15cc i asked
Compression becomes now really too low for a good thorttle response (autoX"......)
, so i propably sent them back, or stack them for a future turbo project
Why do they do that
Not listen to the customer and make something he didn't ask for.....
otherwise, the quality looks nice and the coating should help get the friction down somewhat