the whole thing about the lack of harmonic dampener causeing the engine balancing to be thrown off doesnt make sence to me with the celiicas. Heres why...if that were the case with the celicas that have had problems it wouldnt be the oil pumps that would be going, it would be internal engine parts. But I havent heard of anybody having those kinds of problems. I think the increase in rotation speed with the new pullies is just putting too much wear on the oil pumps, and their blowing. I wonder if the lift feature with the GTS engines is contributing to the problem or as i stated before the added water pump pulley with the GTS.
I dont know. Just some thoughts.
you my friend have no understanding on how cranshaft vibration and harmonic vibrations work.
removing the harmonic balancer (the damend crank pulley) increases harmonics to everything connected to the crankshaft.
the rods, the oil pump ect.
The last person on the other celica site was raving about how his friend who was making cranshaft pulleys was so much better than UR, and guess what 1 mo later blown engine, cause ? undampend crank pulley.
when you concider purchasing this product ask yourself this simple question
IS even a SMALL chance this will blow my engine REALLY worth it?
the rest is up to you.