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> Piston options, Just a thought
post Nov 14, 2004 - 9:04 PM
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FallenHero



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Ok, the 7a has a 81mm bore, and so do the B-16/18 honda engines. I wonder what the difference in pin diameter and such is...

take a look:
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...7933659089&rd=1

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...7934016265&rd=1

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...7932518309&rd=1


Any ot these would make a great set of pistons. I just don't know if they would work with the 7a rods. But hey, NICE forged pistons for like... $200, you gotta love that. Especially if we could get a general idea about the compression they would produce.

Jon
 
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post Nov 15, 2004 - 12:57 PM
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thedevilmaycrie



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STOP the best option is the sr20det pistons they are 82mm and WILL fit nice and snug ae86 guys do this alot with there 4age high comps

-DMC
post Nov 15, 2004 - 3:18 PM
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Kwanza26



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QUOTE(thedevilmaycrie @ Nov 15, 2004 - 5:57 PM)
STOP the best option is the sr20det pistons they are 82mm and WILL fit nice and snug ae86 guys do this alot with there 4age high comps

-DMC
[right][snapback]206954[/snapback][/right]


Umm... SR20 pistons are 86mm...


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post Nov 15, 2004 - 3:29 PM
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FallenHero



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QUOTE(Kwanza26 @ Nov 15, 2004 - 1:18 PM)
QUOTE(thedevilmaycrie @ Nov 15, 2004 - 5:57 PM)
STOP the best option is the sr20det pistons they are 82mm and WILL fit nice and snug ae86 guys do this alot with there 4age high comps

-DMC
[right][snapback]206954[/snapback][/right]


Umm... SR20 pistons are 86mm...
[right][snapback]207011[/snapback][/right]



He's right. Stock honda bore is 81mm. I was just putting those up as an example. I would use 81+ overbore pistons anyway, were I to build a bottom end. There are just so many options here... I wonder how the honda/acura rods would fit a 7a crank...

light weight pistons would be a huge plus, especially if they were forged. And these, like all honda parts, are hella cheap. I could get foged pistons for a B16 for $300, or for a toyo for 600. And don't say use GZE pistons because there are compression problems assiciated with them. I wonder how the compression would be on a 7ag though...

See, I just don't know. I figured this would be a good topic for discussion...

Such as, we know the 2zz pistons work well if you bore out the 7a, but I wonder if the rods work on a 7a crank. I have heard the 2zz crank is Remarkably similar... we just need the information to check it.

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