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boring out the d series

Discussion in 'Engine Building' started by Ignorant import guy, Feb 19, 2006.

  1. Ignorant import guy

    Ignorant import guy Senior Member

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    I want to get my engine bored out...I am going to be going to a performance shop soon to buy a packe of all of the internals neded to keep my engine safe...my question is how much should i get the engine bored and how much should i expect this to cost? (i was told the boring is the cheap part normally less than $200 or around $25 per cylinder)
     
  2. kyleirwin

    kyleirwin Retired OG

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    you're probably gonna want to bore it out .020". which is equal to .5mm.. commonly referred to as "twenty over". as for cost, it depends where you take it. benson's in la county charges $200 for a bore and hone, but they're one of the best names in the business. but what you were told is about right. anywhere between 100 and 200.
     
  3. Ignorant import guy

    Ignorant import guy Senior Member

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    How much power will i gain from that bore and about how much can i expect the pistons to cost?
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    99 ex's have a d16y8 in them, sohc vtec. did you swap in something else?
     
  5. Ignorant import guy

    Ignorant import guy Senior Member

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    Actually no...everybody is telling me that same thing too...it came with a d16y7...but if anyone how much power it will gain or the better question how much a set of pistons would cost let me know
     
  6. romul

    romul Junior Member

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    how much power are u expecting ??
     
  7. Ignorant import guy

    Ignorant import guy Senior Member

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    maybe 20 hp...too much not enough?
     
  8. Ignorant import guy

    Ignorant import guy Senior Member

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    I really only want to bore it out because i plan to put a turbo on the engine...along with boring it out i plan to get the head ported and polished, new cam, etc., so my engine can handle the turbo without having to worry about a blown engine or destroying the head gasket...I'm just trying to find out how much i should bore it out and how much to pistons and rods will set me back...i'm open for suggestions on where i can find a good set of internals
     
  9. pissedoffsol

    pissedoffsol RETIRED

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    DONT bore it if youre boosting.

    thinner walls = weaker
     
  10. Ignorant import guy

    Ignorant import guy Senior Member

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    just get turbo pistons than?
     
  11. formby

    formby learning in progress

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    nahh

    the beauty of a sohc is that if it blows its cheap to replace....i would save my $$$ and not spend it on forged pistons for a D....my $.02
     
  12. Ignorant import guy

    Ignorant import guy Senior Member

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    ok but i want my engine to last not blow out...so i need to get pistons
     
  13. killercannible

    killercannible Senior Member

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    [​IMG] say what? dude i drive a 97 civic ex, trust me, it comes with a d16y8 sohc vtec. If you have a y7 then thats not the original motor. All ex civic's from 92-now came with single vtecs, hx came with vtec too but they were economy based, dx lx and cx came with single non vtec. If your throttle body is aimed up in the air then its a y7 for that year and if its aimed towards the passengers side fender then it s a y8.
     
  14. josuedc2

    josuedc2 Senior Member

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    <span style="font-size:36pt;line-height:100%">92-05 civic ex came with sohc vtec</span> :mrgreen: [​IMG]
     
  15. Ignorant import guy

    Ignorant import guy Senior Member

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    whatever i can fit into my budget

    and for all of you who have a problem with me because i bought a 1999 civic ex in 2001 with 35000 miles on it and a D16Y7 in it...look my car has all of the features of an ex except the engine...maybe the honda factory messed up...maybe somebody blew the original engine out and they replaced it cheaply....oh well i have a 1999 civic with ex logos on it with a d16y7 in it
     
  16. Ignorant import guy

    Ignorant import guy Senior Member

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    My budget is $1800...do you think it is possible that somehow just the valve cover got swithed because i have a feeling my car had a little more than 105 whp stock...do you know any sure tell signs that would tell me if it's a y7 or y8...any answer or suggestion is appreciated
     
  17. J2006

    J2006 Member

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    Look for the numbers stamped on the block
     
  18. Ignorant import guy

    Ignorant import guy Senior Member

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    ok will do
     
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