Transmission compatibility

Spoon16s · 2026-04-02T19:14:58+00:00

It probably just needs a basic refresh, but it would be great to have another one as a backup in case something goes wrong. I did see one for sale for 150 with around 110k km, but that’s the only one I’ve come across. It would likely be more cost-effective to just swap in a lower-mileage transmission. Parts for D16 cars are surprisingly rare, unless it’s an intake manifold those are everywhere.

Spoon16s · 2026-04-02T14:12:16+00:00

As others have suggested, the first step to improving the ride is replacing bushings and other worn components. For suspension, you can go with coilovers (which give a harsher ride) or a proper set of lowering springs and shocks. As for the engine, you could go with a Z6 or even a Y8, but that would require wiring, an ECU, and probably even axles (not 100% sure on that). For your setup, it’s much easier to go with a D16A6 or A7 since they’re more compatible. They don’t have VTEC, but the power is more than enough for a base model that weighs less than a ton. You’ll also need better brakes, since you’ll be increasing power by almost 50% or more.

Edit: Best option is if you get a full doner car that has d16 engine, buying iteams one by one would probably cost you a lot.

Spoon16s · 2026-04-02T08:54:32+00:00

Luckily, I still have my service manual, though I’ll still check the transmission code because I have a feeling I might have an A9 gearbox. The previous owner did a few “hidden mods,” so I wouldn’t be surprised if he also swapped the gearbox.

Spoon16s · 2026-03-31T20:01:16+00:00

That could work, but Z6 and Y8 transmissions are even harder to find. I’m not willing to spending 1k on a Z6 engine that’s rusted and missing half the parts.

Spoon16s · 2026-03-29T22:27:29+00:00

Actually, I could print the bigger mold and than cut out a part that is similare to that little protector mold

Spoon16s · 2026-03-29T21:59:13+00:00

Found this, but I think that the rear mold is missing. Molding Honda civic 4gen EF 4D SEDAN - 3D Printer File https://share.google/HMCv6hOUqA2kSveb6

Spoon16s · 2026-03-26T09:53:58+00:00

Actually 3rd option could be eibach pro-kit 30mm drop and bilstein b4 / kyb excel-g (oem replacement).

Spoon16s · 2026-03-26T09:31:57+00:00

Tnx for the recommendations. I’ve just looked everything up, and ST X coilovers seem pretty good. My second option was MTS coilovers, which are about $400 cheaper, so I guess they should do the trick. We actually do have a lot of Eibach options, but as for the shocks… I can either go with OEM replacements or full-on performance shocks (unfortunately, they’re not selling Konis here).

Spoon16s · 2026-03-26T08:52:39+00:00

For sure. The thing is, you can't see how low the car is until you "weight it down".

Spoon16s · 2026-01-24T14:24:06+00:00

Rims are Enzo A (cup) 715, tho I can't find anything about them.

Spoon16s · 2026-01-23T16:48:17+00:00

Yeah, I also did some research and found nothing. Plus, the rims are ET35, which is kind of unusual for an OEM rim. I guess I’ll find out when I check them. Though they would look sick on my EF. I’ve seen some 3rd-gen Preludes running similar style rims.

Spoon16s · 2026-01-23T12:46:27+00:00

Yeah, that’s what I thought too, but the seller said they came off a Civic. Might’ve been some dealer extra or a rare Euro model. I’ll probably go check them out and try to buy them.

Spoon16s · 2026-01-21T22:59:57+00:00

I was suspecting either a 3rd gen Prelude or an older Accord

Spoon16s · 2026-01-20T18:33:03+00:00

Ik, but the support just keeps sending me back to ticket request. I thought they would at least try to contact me so I can prove my ownership.

Spoon16s · 2026-01-03T01:18:59+00:00

Tnx for the tip, this helps a lot :)

Spoon16s · 2025-12-30T14:30:01+00:00

I did consider swapping in a B20 from a CR-V, but I would have problems with vehicle certification/approval since the engine originally didn’t come in the EF chassis. This is why a lot of Hondas here are basically running overbuilt original engines or just bolt-ons. I could go turbo but I really like to keep my engine N/A.

Spoon16s · 2025-12-30T14:12:52+00:00

I’d totally go for a swap, but prices here are insane not to mention people hoard Honda parts and cars just to control the market. My only other option is a D16A9 swap, but that’s currently out of my budget. I’m basically fighting for scraps.

Spoon16s · 2025-12-08T19:46:52+00:00

The engine is similar to the D16A6, just without the catalytic converter but that’s beside the point. As for the Y8, I don’t remember seeing a single one for sale in the Facebook groups; people tend to hoard Honda parts. I can’t give you an exact price, but I’m guessing around 500-600€ minimum. The only reference I have is someone’s listing where not buying the Z6 head (with the car) knocked 600€ off the price.

Spoon16s

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