piston coating would be better spent money. I am not fully knocking oil squirter as they do have there merrits, but really do not have any benifit for street engines. I know that toyota has engineers that know a lot more then I do, but just because they did something does not mean that it is the best thing. We can find design faults and wasteful spending in differnt areas of just about any car, toyota included. Toyota installed then on the GTE engines cause they know that there would be some people that would treat thier engine poorly or use it in ways that it was not intended to be used and this would help to keep warrenty work lower. A perfect example of proper use of design aspects is in the UZ engines. Toyota installed squirters in the 2UZ truck engines and not in the 1UZ or 3UZ engines, reason being, the truck engine is more likely to see sustained heavy power loads due to huling loads, where as the 1UZ and 3UZ engines for the most part wont see these types of loads.
Short bursts of power do not raise piston temps like sustaining high amounts of power does.
Like I side befor, I am not knocking squirters as they do have merrits and there place in engines, but my old 7m for example was a GE block (no squirters) stock O.E. turbo pistons, resurfaces head, 1.5mm MLS (calculated CR or 8.98:1) running 15psi and has 132,xxx miles on that built and still ran like a champ the day that I got rid of it to increase funds for the TT-UZ conversion. In all honestly, except for certian situations, to me squirters are just more mechanical items that can fail.
