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d16y8 mini-me question..

Discussion in 'HYBRID -> ED-EF / DA' started by daveholiday, May 10, 2007.

  1. daveholiday

    daveholiday Do work

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    First off, I'm new to the swap world. I have the chance to get a y8 head for my 1.6 crx, and I'm goin for it. My main question about it though, is untill I get either a new ecu with vtec or a vtec controller, will a toggle switch work, as long as I make sure to shut it off when I'm not gunnin it? I have one of the toggle switches that have the protective cover, and it automatically shuts the switch to the off position when the cover is closed. Would this work as a temporary fix untill I get the ecu or controller?


    Remember, I'm new to the swap world.

    http://www.cardomain.com/ride/2384297
    pics for anyone who cares^
     
  2. jason22ga

    jason22ga jason91si

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    i would wait to get a vtec ecu
     
  3. daveholiday

    daveholiday Do work

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    compression?

    The only question that nobody has yet answered for me, is about compression. I don't really understand compression, and what's dangerous and whats not. I understand why it is dangerous, but I don't understand the dangerous area's of the numbers. The d16a6 has a cr of 9.1:1 and the d16y8 has a cr of 9.6:1. Is this dangerous enough that i'm going to have to change a lot of stuff, or use the super unleaded or what? I understand i'll probably have to change something but I figure I would like to know exactly what and how dangerous.

    ***I used the compression calculator (Compression Calculator) but didn't know which piston i would be using because i'm not 100% keen on the internals of an engine. with the d16a6 pistons the cr is 10.07:1, and with the d16y8 pistons it is 9.52. Again, I need the whole dangerous levels help.***
     
  4. turbodhatch

    turbodhatch yo moma

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    yea fo sho.
     
  5. daveholiday

    daveholiday Do work

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  6. prdsmracer03

    prdsmracer03 New Member

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    compresion

    You'll be ok with the y8 motor you can run 93 octane if ud like, but you dont start getting dangerous until u go over 12.5.1 so you'll be ok. As for vtec get either a vtec controller msd one or sumthing or get a pr3 B16 ecu but i would still run the vtec controller cause vtec from 5800 to 7500 sucks u drop out all the time, in my Y8 motor I run it from 4400 to 7500 in a B16 ecu(PR3) runs great.
     
  7. 90crxfreak

    90crxfreak New Member

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    i say buy the parts if u have the money, but dont install it till u have all the parts....
     
  8. daveholiday

    daveholiday Do work

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    and what all do I need to do for the engine OBDII to OBDI conversion and the car OBD0 to OBDI conversion?
     
  9. ho2nvda

    ho2nvda New Member

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    here is my set-up

    98 full y8 motor not a mini-me (no vtec hooked up till i get the jumper harness)
    88 zc internals pushing 12:1 compression
    8lb flywheel and stage 2 proclutch and pressure plate.

    spend the extra money and get the zc internals i.e. pistons, rods, crank and crank pulley. just my 2 cents
     
  10. daveholiday

    daveholiday Do work

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    Thanks for your input, but did you notice that this was last active in May? It's November, and I have a setup, but thank you very much.
     
  11. ho2nvda

    ho2nvda New Member

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    sorry bout that bro, i must have missed the date on it. my bad. btw how's the set-up treating you?
     
  12. daveholiday

    daveholiday Do work

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    Haha, it's cool. It's turned into a winter project.
    Plans are:
    P29 pistons .020"/.5mm over
    Crower Stage 3 cam with matching springs and retainers
    A good quality header, unsure about what.
    A quality port and polish
    ARP head studs
    ARP rod bolts

    check out the build thread in my sig
     
  13. Dasfinc

    Dasfinc New Member

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    I dunno if you have read my thread already, but here's my setup. Check my siggy for the write-up

    1992 Civic CX D15B8 Block
    1997 D16Y8 Head *Milled, Mild P+P*
    1997 D16Y8 Intake Manifold, Fuel rail, and FPR
    Origional Injectors
    Origional D15B8 Dizzy
    D16Z6 Spark Plugs and Wires *Need to change those, but they work fine*
    Megan Racing UDP
    Z6 Timing Belt
    P05 ECU Chipped by Pherable for Vtec and my setup.

    Despite all the big debating, I wouldn't go all-in a SOHC, and especially not in a MiniMe,
    Reasons being:
    high CR so I can't boost safely
    Weak Rods *Yours are better than mine, but regardless
    Parts get expensive.

    I highly recommend changing your bottom end (Or just your pistons AND rods such as Vitara Pistons and LS rods) and boosting, or swapping to something with more potential as you are just splitting hairs to get maybe 150 NA HP out of a SOHC
     
    Last edited: Nov 25, 2007
  14. daveholiday

    daveholiday Do work

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    honestly, I'm not trying to go all-out crazy with this. My brother has a $15k ls/vtec that the guy before him had built and installed in the car, and he's only makin around 195 whp. I'm more or less doing this as a small project to get me comfortable deep in disassembling engines and swappin shit out. Once I do this, and get this running good, I'd like to pick up like a 90 lx and go boosted, not sure about d or b series though. Or maybe I'll throw this motor in there, and go boosted in the crx, I'm not sure yet. This is mostly just to get me comfortable.
     
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