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#1
07-20-2006, 03:36 AM
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d series piston bore
are the pistons way of for the bore size in the d series motors or are they all the same size? i have a d16a vtec and i think i might need to replace the pistons and rings.
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#2
07-20-2006, 04:49 AM
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Re: d series piston bore
all d series pistons are the same bore (75mm) but they do have diff compressions! but I have no clue why you would not bore it out .20....
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90 Honda CRX Si -Red/Black -B20B/b16 -AEM CAI -/\- Apexi GT Header/2¼" Custom Dynomax Exhaust -Tein SS CoilOvers with pillow ball monuts -/\- ST Swaybars/Energy Suspension Bushings -16x7 Lightweight Rotas -/\- Pro Stop Rotors -/\- Goodridge S.S. Brake Lines -Skunk2 Shifter -/\- MoMo Steering Wheel
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#3
07-20-2006, 12:26 PM
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Re: d series piston bore
oh because im just looking to rebuilt mine for now. not trying to make it fast yet. thanks for the help
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#4
07-20-2006, 01:32 PM
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Re: d series piston bore
well no sense in rebuilding it if you are not gonna bore it out .20 and have it honed....thats the right way to do it and you will be able to sleep easier at night
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90 Honda CRX Si -Red/Black -B20B/b16 -AEM CAI -/\- Apexi GT Header/2¼" Custom Dynomax Exhaust -Tein SS CoilOvers with pillow ball monuts -/\- ST Swaybars/Energy Suspension Bushings -16x7 Lightweight Rotas -/\- Pro Stop Rotors -/\- Goodridge S.S. Brake Lines -Skunk2 Shifter -/\- MoMo Steering Wheel
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#5
07-20-2006, 03:51 PM
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Re: d series piston bore
No point in boreing it over. As long as its properly honed it will be fine.
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#6
07-20-2006, 05:56 PM
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Re: d series piston bore
The stock platue hone from honda is VERY good, and inless there is some serious wear or scratches that can catch a fingernail, there is really no reason to bore, unless you're going for more power.
Also, check zealautowerks in my sig for a great compression calc, you can figure out what pistons will give you what compression with your setup.
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#7
07-20-2006, 05:57 PM
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Re: d series piston bore
do i need to take it to the machine shop for that? or do i just clean up the cylinder walls with the proper tools?
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#8
07-20-2006, 06:09 PM
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Re: d series piston bore
Quote:
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#9
07-20-2006, 07:32 PM
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Re: d series piston bore
Those drill hones can leave the bore out of round so you have to be very careful when using them.
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Cheap, Fast, Reliable..Pick two  Current project: Rio Red 91 hatch. A6/Z6 build, Hondata S300, Tokico illumina/Ground Control. "I'd rather run 12's on steelies than 15's on rotas."
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#10
07-20-2006, 09:25 PM
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Re: d series piston bore
Quote:
Anyway this man is correct, drill style hones are TRAAAAAAAASH. They don't make it out of round technically though, its more of a egg shape. The middle will be slightly larger then the top and bottom like this ()
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Saturn Stealership Technician #331 
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#11
07-20-2006, 09:46 PM
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Re: d series piston bore
thanks alot guys. i will look into that stuff. and if anyone has anytips for the piston transplant shoot. thanks
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#12
07-20-2006, 09:50 PM
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Re: d series piston bore
take it to a machine shop and get it honed properly, then get it hot tanked or atleast wash the cylinder walls down with warm SOAPY water. then reasemble. i thought your 4 door had a d15 vtec in it? hows it so beat already?
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Saturn Stealership Technician #331
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#13
07-20-2006, 09:51 PM
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Re: d series piston bore
oh and can i use my old hf pistons and it will still be an ok compression or should i just get some z6 pistons. i really just want it to run for cheap. so basicly the usuall.
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#14
07-20-2006, 09:53 PM
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Re: d series piston bore
well being that HF's are 8 valves, the pistons will not work.
get some z6's.
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Saturn Stealership Technician #331
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#15
07-21-2006, 02:41 AM
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Re: d series piston bore
It depends on what type of hone you use, I agree that the ball hones and the three stone spring loaded ones are junk though.
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