VtecNboost

Ok, I have a 92 hatch with d16a6 with I/H/E. My no.1 rod bearing is going (sounds horrible!). I can get a d16y5 for cheap but not really digging the while one intake valve til vtec. So my question is, what head should I use (z6 or y8). Will p28 run this setup ok? I've searched n searched but can't find answers..

jbpnoman

Why not just rebuild the bottom end? It'll end up being cheaper than a swap, easier than a mini me, and more reliable than a Craigslist motor if you do it right.

Whydid

There is no such thing as a Y5 mini-me.

jbpnoman

Are you trolling badly, or do you just not know what you're saying? It has been done, plenty of times. A search on Google pulls up hundreds of write ups, pictures, gas mileage reports, and general information.

Whydid

Seeing as how Y5 and Y8 blocks are the same, putting a Y8 head on a Y5 block would be no different than putting a Y8 head on a Y8 block, otherwise known as "just making a Y8."

HondaPartsHero

Except you would lower the compression ratio even lower.

grumblemarc

iTrader: (4)

So it's NOT the same! Maybe you could call it a Y6.5

jbpnoman

Meh, I'd call it a D16Q. Pourquoi? à fin que!

Seriously OP, I would just rebuild the A6 bottom end. It'll still be cheaper than this "cheap" Y5, and you can use a FSM instead of forums.

VtecNboost

So should I replace the crank or take it to a machine shop then get undersized bearings? N where would u recommend getting a crank from if I should have to go that route?

grumblemarc

iTrader: (4)

Junkyard. H-T Marketplace. I scored a nice Z6 crank for my engine build for cheap.

VtecNboost

So if I was to opt with the d16Q/6.5 lol, as I asked in op,

jbpnoman

If you absolutely insist on doing it the hard way, you're going to want to use a Y8 head, and a P2P ODB2A ECU. You'll also want to replace your full wire harness with an OBD2A harness. As HPH said, you'll also be tanking your CR, making an already gutless motor even more gutless.

Do you see now why I recommended just rebuilding your current motor? Parts will be cheaper if you rebuild, and labor will be less intensive to do it properly.

VtecNboost

So rebuild it is. And I might boost now. Just got word my buddy is selling his setup.

Kista20

wtf is this troll...

From what is implying you cannot call it a mini-me when you take a y5 head then install it on say a y7 block... ok so what would you call it then genius?

The y5 has vtec just like the y8 only it's called vtec-e so it works a little differently than your normal vtec but it is still vtec just a different form of it.

If you do decide to use the y5 I would just use the block with a different head. To take advantage of a complete hx swap you will need to convert to obd2 and run the p2n which is the hx ecu a chipped p28 will not properly run it.

usdm ej1

Built your a6 the y5 is pointless and slow

grumblemarc

iTrader: (4)

Like an A6 is really fast.

Bense