The engine's in 7th and 6th gen Celica, Why did they change?? Options

[BonzaiCelica]

So i was thinking the other day of the difference between the motor's in the 6th gen and 7th gen celica's. The 3sge engine was a very potential motor with 3rd gen producing 177 hp 142 lb torque, 4th gen "Redtop Beams" 197hp 152 lb torque and the 5th gen "Blacktop" found in the Altezza producing 207 hp and 159 lb's torque. I would say those a pretty impressive numbers.

Honda has had their vtec since the nsx first came out in the early 90's and they have been improving ever since. So why did toyota decide to go with a 1zz-ge and 2zz-ge engine for the celica. I mean the displacement went down in .2 liters. The 1.8 ltr 2zz engine came with vvtl-i to compete with honda's vtec? In the US, the celica only produced a 180 hp and in japan it produced 190 hp. Then there was the trd celica which produced 194 hp. Still that wasnt even enough to touch the Integra type r B18c5 motor which produced 195 hp and had around the same torque as the 7th.

So why didnt toyota stick with the 3sge. They could have produced an 2 ltr engine that had around 215 hp with vvt-i on the intake and exhaust manifold just like the 3sge blacktop.

[mariosdarkworld]

Can you swap over the black top beams in to the celica? I know people will say if you have $$ everything is possible. Im asking if its a ton of work because I think a 6spd black top rwd beams would be awesome. Theres one on youtube that said it has 600bhp idk not sure if its true but i know they can hold turbo pretty well. Theres one w/ a 66 garrett or sumin I believe sorry Idk much about turbos. I just wanted to know if its a direct swap from the Altezza to the celica or if theres a lot more custom fabrication taking place cause about 4k for the 6spd tranny engine and front and rear assembly it sounds like a deal to me. Ill keep researching to see how to manage this.