Interesting! The D16Y1 is a good engine, and, yes, it is a SOHC VTEC but it is a 1.6L, EFI with 96kW. The Breeze was Honda's answer to all the criticisms from the motoring press and the general public that Honda's were too expensive for what you pay (back in the early 90s). It was a stripped down no frills car at the lowest end of the Honda Civic market. I think it only came in one colour - yellow - to distinguish it from other Civics at the time. If you own an early model Breeze (1991-10/1993) you have the 1.3L engine (55kW); if you have one built after 10/1993 you have the 1.5L engine (67kW). The latter is the one to have for simplicity and build quality/functions.
The upside was that it was the same body shape as the popular EG in Japan and I think it sold quite well.
I am currently transplanting the D16Y1 into an ED and the conversion is fairly involved, least of all what you have identified such as EFI conversion and possible drum-to-disc rear conversion. The latter is not absolutely necessary but because it is an easy swap and relatively cheap to do, the extra braking power would be a good thing.
Upgraded swaybars are cheap and easy to find, and you should have some electric options in the Breeze (although I can't be sure). Sunroof is a take it or leave it option (I rarely use mine), and a tacho can be added aftermarket if you must have one.
I don't know anything about prices for used D16Y1 as mine was from my 1994 EH sedan (which received a JDM B16A transplant a few years ago) but you may be able to find a good used engine at one of the wreckers or even off these forums.
The cost of this conversion is in the time it would take to complete it, not the actual parts. For example, converting the fuel system, the re-wiring, etc.
Not from my experience. Anyone who says they can do this conversion (properly) in a weekend is a magician. Maybe if you had all the parts gathered, the wiring all sorted, the fuel tank modified, the brakes setup, a large, empty workshop and several people to help you you might do it in a week but not in a weekend.
Too much misinformation in some of these threads for my linking, and too many naysayers as well. But each person has a valid point in some respects.
You don't need a new fuel tank - the old one can be modified quite easily and you can use your exisitng fuel lines. They just need adapting.
A complete wiring loom would be nice but you can get away with an ECU and partial rewire but it would cost up about $600 to have a pro rewire so, yes, a complete loom would be much better.
You don't need an Engineer's Certificate, only A Change of Details form or Blue Slip from a workshop certifying that the conversion has been done to a certain standard and it is safe. You are only increasing the engine capacity from 1.5L to 1.6L and since the D16Y1 came in the same body shape it is a direct swap with engine mounts and transmission. The engine would be classed as an "option" for the Breeze so no Engineer's Certificate required.
Rear disc not essential but see my comment above.
This is a straightfoward albeit time consuming swap. If you are doing it yourself then it is a worthwhile upgrade, and parts can be sourced easily and inexpensively. If you are paying someone else to do it then, yes, I would have to agree that it could cost big $$ and probably not worth it in the long run.
Removing a Civic dash is easy - putting it back correctly is not as easy unless you label everything carefully and that takes time.
The bottom line is - DIY (Yes); Mechanic (No) too expensive (possibly)
Peter
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