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Old 10-14-2004, 02:50 PM   #1 (permalink)
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tech wrench OEM D-Series Piston Information

I came across this info on another forum and copied the info here. It was just too good for it only to reside in one place. Thanks to Sonny who originally posted this information on HT.

You may want to play with the D-series compression calculator after reading this post :

http://www.knology.net/~jediklc/D.htm

You can click here to See a Diagram of Piston Specs.

Additional piston specs are available here : https://www.superhonda.com/forum/show...postid=1207532

Late Model D-Series Piston Archive is available here : http://heeltoeauto.com/httech/YaBB.p...1160787887/0#0

Quote:
Originally Posted by Sonny
Hi All:

So far, I have 6 different D series pistons to work with. I have almost every piston from 1.6 liter engines. I think I'm missing one from the 96+ Civic HX, but nobody has that car.

Here are the contenders so far:












I've measured the P29 and PM7 pistons in several ways and as far as I can tell, they are exactly the same. I wonder why Honda made 2 different part numbers and castings for the same piston? Hmmm...

Sonny
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Old 10-14-2004, 02:53 PM   #2 (permalink)
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tech wrench

Quote:
Originally Posted by Sonny
The main motivation behind this project is to determine what compression ratio is yielded using different combinations of D series pistons and D series heads. There is such a large variance in the way that Honda designed the pistons that just about any compression ratio is doable.

For example, the PG6B (86-87 Integra) and the P28 (92-95 Civic) both have the same compression height (1.181"). They will be flush with the top of hte block when installed. However, the Integra piston has a small dome, but the Civic piston has a HUGE dish. The difference between the 2 pistons afa compression ratio is very large.

Here are some pics comparing the P29 (88-89 Integra) to the PM7 (88-91 JDM ZC). This Integra piston was slightly modded on top, but I've seen a very clear picture of the top of this piston and can say that it is identical in shape to the PM7.







Sonny
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Old 10-14-2004, 02:55 PM   #3 (permalink)
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Quote:
Originally Posted by Sonny
Ok guys, last pic for now.



Sonny
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Old 10-14-2004, 09:39 PM   #4 (permalink)
 
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Great, the one piston he doesn't haev is the one I need to see.
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Old 02-15-2005, 03:45 PM   #5 (permalink)
 
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Great thread kommon.
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Old 03-09-2005, 05:31 PM   #6 (permalink)
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The ultimate d-series piston archive is back up :

http://www.heeltoeauto.com/tech/dseries/dseries1.shtml

I'll work on pulling this info into SHO so that we have it archived in case it goes down again.
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Old 05-07-2005, 10:55 PM   #7 (permalink)
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Suzuki Vitara Piston Specs are available here :

http://sohchonda.com/v-web/bulletin/...ic.php?p=31242
http://sohchonda.com/v-web/bulletin/...pic.php?t=3607
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Old 05-07-2005, 11:05 PM   #8 (permalink)
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*wink*

we got all the good stuff. =)

kommon rocks for the effort he puts in here. u guys should love him.
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Old 01-31-2006, 11:57 AM   #9 (permalink)
 
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civic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a lifecivic_x_95 You need a life
Why isn't this stickied? This should be stickied.

kommon.... you are teh shit.
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