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D15B6 Piston Specs?

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Old 11-03-2003, 07:48 PM
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Default D15B6 Piston Specs?

My gf's cousin has a D16Z6 with some HF pistons in it...said it gave it some nice compression. He's goin to be giving me the motor if this other guy doesn't buy it...so I wanted to see what I'm lookin at gettin. Where would the HF pistons sit compared to the other stock d-series pistons? Anyone have any specs on them or can tell me where to go?
Old 11-03-2003, 08:28 PM
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Default Re: D15B6 Piston Specs? (H23 EG Hybrid)

wasnt the HF an 8 valve engine? people keep saying you cant use a 16 valve head with the 8 valve pistons because they interfere. ive never tried it though.
Old 11-03-2003, 11:55 PM
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Yeah...it sounds weird...but supposedly he has it done.
Old 11-04-2003, 05:06 AM
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the only way he has that done is if he cut new valve reliefs in the pistons. That would make the already weak HF pistons, even weaker. If i were you and wanted to go the cheap OEM piston route. Just get dx pistons. There .4:1 higher than the Si's.
Old 11-04-2003, 05:20 AM
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Default Re: (phatrick2332)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phatrick2332 &raquo;</TD></TR><TR><TD CLASS="quote">Just get dx pistons. There .4:1 higher than the Si's.</TD></TR></TABLE>

do you know where to find the specs on the dx (d15b2) pistons? ie...compression height, piston-to-deck clearance, dish/dome volume?
Old 11-04-2003, 05:41 AM
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d15b2
stroke: 84.5mm
rod lenght: 134mm
rod/stroke ratio: 1.59
deck height: 212
total piston height: 61.76mm
compression height 30.70

and there is no dish/dome..there flat tops
Old 11-04-2003, 09:16 AM
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d15 pistons have the wrist pin in a slightly different location. you should get some pm7/p29 pistons (88-89 teg), or some 86-87 teg PGB6 pistons.. (i think thats right..)
Old 11-04-2003, 12:18 PM
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Thnx for the insite...hopeully his motor doesn't blow on me too fast. He's been running around on it for awhile now, so I should be ok. Do you have the compression height, piston-to-deck clearance, dish/dome for the D15B6 piston by chance also?
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