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LS/vtec 92 integra. Which pistons

Discussion in 'Engine Building' started by jits1980, Aug 8, 2007.

  1. jits1980

    jits1980 New Member

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    hey guys im doing an everyday driver ls/vtec. i have a 92 integra ls. I am going to keep the block and getting a 95 gsr head. i am doing a complete rebuild on the block and getting new valves for the head as some of the valves are craked. i am going all gsr pumps and timing belt.
    -Which Pistons should i buy the p73 integra type r, pct civic type r or b16a civic si?
    -Also should i invest in some apr rod and head bolts?
    Please help 1st time builder here.
     
  2. jits1980

    jits1980 New Member

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    i am using stock cams. i dont know what compression i am running. what do you suggest?
     
  3. eg6sir

    eg6sir Supa Mod Moderator VIP

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  4. LsvtecEg6

    LsvtecEg6 New Member

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    I agree...Using stock cams would be ideal for the p30's. If you're gonna use stock cams why up the compression? A "stock" ls/vtec is good for a daily driver.

    Edit: I know p30s will raise the compression. I meant keeping it moderate. lol. Didn't want to confuse anyone.
     
  5. eg6sir

    eg6sir Supa Mod Moderator VIP

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    compr. would be about 11.8:1 with p30s.. with JDM p73s it'll be about 11.5:1
     
  6. LsvtecEg6

    LsvtecEg6 New Member

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    That's wierd. I always thought it would be closer to 11.2:1. Especially with a stock head. Everyones wrong sometimes. I may be missing someting here but aren't p73's higher in compression?

    Nevermind...just used that calculator. That thing is neat. Aren't p30's also easier to use with stock rods. I know there's something you need to do to get p73's to fit with stock ls rods. Am i correct.
     
    Last edited: Aug 8, 2007
  7. eg6sir

    eg6sir Supa Mod Moderator VIP

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    the GSR head on the LS block will make the compression a little higher than a b16/itr head due to the smaller combustion chamber.. and no the p73s aren't higher in compression than p30s...
     
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