wow there's a lot of confusion about that damn 4agelu... so i'd like to share some history about toyota and "takumi's engine"

engine that that i came across. maybe it'll clear things up:
History Lesson 1: The motor block and head was actually built from Yamaha. It specifically was designed and build for Group-A and 2.0 liter and down class races. It desimated many other competitors at the time until the Honda's DOHC motor(note that I did not say Vtec) debute into the world.
The 4AG max redline was 12,000RPM but was shifted at 10,000 RPM for the endurance reasons. It had a 20valve head that came off the 90~92 corolla 4AG(Japanese version) and the bottom was left alone from the original 4AG. The internals were swapped out with Group-A(a name of a shop, it does not exist anymore in Japan) high comp racing camshafts, crank, pistons, and more. It delivered just about 240HP on the dynamo(meaning power loss to the wheel when adding more parts/weight). The Group-A company are mostly gone now because of better Tuning shops debuted in Japan like ESpirit, Spoon, Amemiya, Jun, and etc. In America Group-A is now known as "Skunk."
Yamaha works with toyota when building high revving engines. for example, the newer celica gt-s was a collaboration with yamaha. The racing 4agelu(ae101 high octane), the true motor was a AE86 bottom from Yamaha and a AE101 head, also, fully built from Yamaha.
Originally posted by Driftster
Suzuki? WTF are you talking about
Suzuki did once make the Corolla engine because Toyota fell behind in production lines during the early 90's because economy/family cars were getting popular.
History Lesson 2: back in the 1980's the 4AG and 2TG(old school) were the best responsive motors ever created in the world. They were also known as the "1sec. redline motor."
hope that all made sense