Honda/Acura Tech Honda tech discussion.

LS/VTEC question

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Old Aug 10, 2003 | 10:53 PM
  #11 (permalink)  
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Originally posted by Vapor
you get what you pay for... I'd consider a set of B16a pistons before CTR's in a LS block. good for 11.3-11.5 CR, PLENTY enough for the street
yeah, i have the ctr's laying around already, so i figured i'd use those, but 12:1 is a little excessive... 11.5:1 is more where i want to be. pr3 or p30?
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Old Aug 10, 2003 | 10:55 PM
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i will buy the civic pistons from you,Or trade you and some cashwith my b16 pistons/rods
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Old Aug 11, 2003 | 01:48 AM
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Oversized USDM b16a pistons are my pistons of choice for street ls/vtecs. They cost about $275 w/ rings or so and fit ls rods with no machining.
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Old Aug 11, 2003 | 07:16 AM
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I have almost exclusively used p30's with great results and I have built a few lsvtecs in my time...just remember to give the pistons you want to put in the block to the machine shop with the block and the clearances you want so they can get it exact...all castings are different...but definitely go .25 over, every bit helps...

...as for the block guard, I have seen them cause "phantom" overheating problems in the past 8 years...the coolant passages are not sufficient to cool the "combustion" area around the top of the sleeves, leads to little hairline cracks along the rim, this is why golden eagle makes a webbed sleeve to retain the open deck(this is also why honda's run so much cooler comparitively) and as for other solid deck sleeves, they are fine almost all the time they are Iron ductile not cheap honda sleeves...they won't hairline but they will get hot, I used to have solid deck sleeves on an old h22 accord back in the day and it always ran a little hotter than prior...
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