A70TTR
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correct ^
it was also cheaper and easier to make a brick shithouse motor back then. the 2J isn't exactly a super advanced design or anything, but that's part of why it was so great. btw, you can thank Yamaha for that robustness and tunability because the 2J is simply a progression of the 1J +500cc. And by involving Yamaha, a company known for racing, you're also going to get something designed to last longer at higher rpm and load.
so basically late 80s/early 90s money and materials + Yamaha = winning (1G,1JZ, 3S, 2JZ, 2ZZ, etc)
it was also cheaper and easier to make a brick shithouse motor back then. the 2J isn't exactly a super advanced design or anything, but that's part of why it was so great. btw, you can thank Yamaha for that robustness and tunability because the 2J is simply a progression of the 1J +500cc. And by involving Yamaha, a company known for racing, you're also going to get something designed to last longer at higher rpm and load.
so basically late 80s/early 90s money and materials + Yamaha = winning (1G,1JZ, 3S, 2JZ, 2ZZ, etc)
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