In all seriousness if you are after a decent power increase there isn't much point in trying to fit any of the bigger Y series motors, I don't think there ever was a 4Y-E, but you could get a 3Y-E in some Surfs and Townaces, you would have to pull half the cab apart to even sort the wiring, the factory EFI Townace has got looms running everywhere and the computer is stuffed inside one of the door pillars IIRC.They're an old thirsty and inefficient motor with a very old and basic injection system and a complete setup probably isn't that easy to find anymore either.
rob_man,
Feb 5, 6:44pm
From memory about half of the power made by the motor in those vans is used up by all the bolt ons like air con etc and theweight penalty of the extras packed into every available cavity. If you were to freshen the existing engine and demand a bit less of it by chucking out all the unnecessary stuff you might find it goes a bit better than you'd expect.
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