GTSSportCoupe
2LTE abuser
I always thought ceramic pre-cups would have many advantages for the IDI turbo diesel engine. Browsing some SAE papers this morning, I discovered that Toyota did include them in at least one engine. I've attached the paper if anyone is interested. The material is Silicon Nitride. I believe this material is also used in Toyota's ceramic turbo-chargers.
Turns out the engine Toyota used the ceramic pre-cups in is the 2L-THE, which is a more advanced version of the 2L-TE. From the little information I can find on people who have owned a 2L-THE, the new head with ceramic pre-cups is a big improvement in terms of power and lower coolant and EGT temps (over the basic 2L-TE head).
Makes me wonder why 2L-TE owners don't upgrade to the 2L-THE head instead of the 3L head? If the head ever goes in my LJ78, I may try to track down one of these heads with the ceramic pre-cups...
Also makes me wonder why Toyota didn't put ceramic pre-cups in all the 2L-TE powered vehicles, or for that matter, into other engines like the 1HZ.
Turns out the engine Toyota used the ceramic pre-cups in is the 2L-THE, which is a more advanced version of the 2L-TE. From the little information I can find on people who have owned a 2L-THE, the new head with ceramic pre-cups is a big improvement in terms of power and lower coolant and EGT temps (over the basic 2L-TE head).
Makes me wonder why 2L-TE owners don't upgrade to the 2L-THE head instead of the 3L head? If the head ever goes in my LJ78, I may try to track down one of these heads with the ceramic pre-cups...
Also makes me wonder why Toyota didn't put ceramic pre-cups in all the 2L-TE powered vehicles, or for that matter, into other engines like the 1HZ.