they have timing chains. 100 percent positive. they are idiots above me. that link the first guy gave is for a 3sge motor which didnt even come in the 2000+ celica gt-s or even the gt.
they have timing chains because they have variable valve timing (vvti) on the intake sprocket which retards and advances the timing of the valves depending on rpm for better power and fuel mileage. a belt is not suited for retarding/advancing the sprocket. the "L" in vvti-l stands for lift which it has both retard/advance on the intake timing but also a bigger cam lobe profile that ingages above 6000rpm which accounts for the 40hp difference between the engines. similiar to hondas i-vtec system.
if you want more info for vvti and vvti-l look here:
http://www.celicahobby.com/ubbthread...b=2&o=&fpart=1
the motor code for the celica gt is 1zz-fe
the motor code for the celica gt-s is 2zz-ge
here is even more proof...a clear cut picture of a timing chain
http://www.newcelica.org/forums/show....php?p=5033755
Does a 2000 Toyota celica gts have a timing chain or belt?
Linear Mode
