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head swap

Discussion in 'Engine Building' started by cxjon, Dec 26, 2002.

  1. cxjon

    cxjon Senior Member

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    well if i were to swap my head off of my cx (d15b8 8 valve) to a d16y7 head what would have to be done? do i need a new ecu ... both motors are non vtec. is there obd issues. thanks
     
  2. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Seems like if you swapped just the head and kept your present injectors and distributor at would work.Not sure which headgasket or timing belt you'd want to use.I had this same question a while back and thought the pistons reliefs would be a problem because going from 8 to 16 valve but was informed that they both had 4 reliefs even the 8 valve.Don't know how much this helps but it's a start.
     
  3. cxjon

    cxjon Senior Member

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  4. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Sorry,I'm not sure of the exact process.I'm the kinda jackass that would take it all apart and write in when I screwed it up lol
     
  5. cxjon

    cxjon Senior Member

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  6. cxjon

    cxjon Senior Member

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    from what i understand i need a timing belt off a d16y7, new gaskets and a new ecu... the ecu i have no clue what to get.. can i keep my cx one or get one off a dx or do i need one off a d16y7, i m not sure. another thing i m not sure about is do i need a new distribitor? if you all remember i just bought oneany help would be great.
     
  7. pissedoffsol

    pissedoffsol RETIRED

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    why bother?

    the y7 head is a dx head... you will get like 5 more horse.
     
  8. cxjon

    cxjon Senior Member

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    y7 motor is a 106 hp mine is 70..... the hf artical that chet did seems interesting and i was wondering it its possable to do it to my car without fucking with running vtec shit. this is an idea i m not for sure wanting to do this. all i want to know if this will add hp and what would be needed.
     
  9. pissedoffsol

    pissedoffsol RETIRED

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    the y7 is also a 1.6, yours is a 1.5 with lower compression pistons.

    you will nto come close to 106 with this head swap dude, sorry. I really think its a waste of time.. jsut get naws :)
     
  10. cxjon

    cxjon Senior Member

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    naws the shit out of the cx sounds like fun but thats not all the time power :p
     
  11. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Save a little cash and get a d16z6,then spray the cx for fun till it pops.
     
  12. chingro

    chingro Senior Member

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    get a DOHC motor, dont bother with the SOHC

    even the non VTEC ones are better
     
  13. chingro

    chingro Senior Member

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    this is pure B.S.

    112,109 to the wheel, would NEVER pull on a Type-R, not even on a B16A motor.
     
  14. cxjon

    cxjon Senior Member

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    i had a buddy that owned a 90 si that was beating 99 si's like they were dx's and all he had was a short ram intake and a exhaust. he even beat a dude that had a itr with a gsr motor in it(he bought it front an insurence company with out a motor in so he bought a gsr motor 4 it)
     
  15. pissedoffsol

    pissedoffsol RETIRED

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    steve's old 86 crx si owned 99-00 civic si's stock for stock. I belive it.
    90% of it is the gear box
     
  16. chingro

    chingro Senior Member

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    Had a red 91 SI with tons of mods, then i dropped in a ZC.......
    sold that, and got a black 91 SI, and then dropped in a B16A...
    had a 91 DX, and dropped in a SOHC VTEC.........

    non of which could of beaten a GSR/ITR......(the cars i raced were not stock, never got a chance to race a stock car)...








    anyways....why waste all that on a motor aiming to beat stock cars??!!!??
    why not take it to the nex level....
    get somthing that u will really be happy about in the long run.....RSX type S and 03 civic SI's are now out...aim to beat those, if you still have the mind set on beating stock cars.

    later
     
  17. chingro

    chingro Senior Member

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    notice the bold words...
    u still believe?
     
  18. cxjon

    cxjon Senior Member

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    the itr is a heavy car and the hf is light as fuc..... with the right driver i beleave the hf with those mods can keep up with a itr. my friend had a itr with a gsr motor in it and the 90 si spanked it
     
  19. chingro

    chingro Senior Member

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    main words.....

    thus not considered a true ITR

    later
     
  20. chingro

    chingro Senior Member

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    do what u have to do, dont let me affect what u want to do.

    i am just here to give advise...and my advise is against that setup..

    later
     
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