I want to replace the pistons and rings in my 03 F7 and i was wondering if I should use stock replacements or are Wise :dunno: co or SPI piston ok. Does anyone have any experience with these?
[/quote]Originally posted by PLUMMER@Oct 7 2005, 08:27 PM
They do have a coating but I don't recall the name, I whould imagine the only other type of coating left to do is D&D's ceramic coating which helps spread heat uniformly and can help to prevent burn downs if you catch it fast enough, cuz obviously if you don't everthing will eventually go. I was told if you have a tad too much timing and rather than ingnition making a hot spot and burning a hole in the piston it spreads the heat more can slow the process of melting down. Is it grafal on the OEM's or is that the SPI or the Polaris ???
I think this is one thread that is almost unanimous atleast they are all cast and specially coated pistons.