They're made by kolbenschmidt, second oversize, 84.48mm and part number ks 90102630 which when I search brings up a corresponding part number of 11251714804, which is a piston in the e series, starting from 09/87.
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Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
1987 Delphin 325IS
LS1•TSP 228r• condor speed shop solid subframe, diff, fcab, mounts•Airlift air ride suspension•e36 ps rack•Eibach sways•16" Spal puller•bbk 310mm front & rear•17" BBS RS•
Build Thread
1993 alpine 2 325IC
•Ground control coilovers•16" BBS RS• momo woodgrain -
starting from 9/87? would make it an 88 model. Only 88 ETA was the super ETA and the Super ETA has domed pistons like the ones in the picture."I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj
85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER
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from the pictures, i can say they are for the 885 "i" head. they could be for 2.7 crank/rods or 2.5. how would you expect us to tell the difference from your pictures?Comment
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Well that's why I supplied the p/n references that I managed to find...Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
1987 Delphin 325IS
LS1•TSP 228r• condor speed shop solid subframe, diff, fcab, mounts•Airlift air ride suspension•e36 ps rack•Eibach sways•16" Spal puller•bbk 310mm front & rear•17" BBS RS•
Build Thread
1993 alpine 2 325IC
•Ground control coilovers•16" BBS RS• momo woodgrainComment
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exhaust side valve recess look more like B25 but measure the pin C/L to top.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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well if you have the part number, why are you asking us what they are? there shouldn't be threads asking "what piston is this?", especially when 2 pistons look the same, and you already have a part number! someone putting together an engine should be able to determine these very simple things, not asking a forum.
/end rantComment
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What's the point in being rude? I ask because as stated above the exhaust valve recess looks too big for a seta piston. A forum is to help people, not to get on their case cause they asked a question YOU don't think should be asked.Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
1987 Delphin 325IS
LS1•TSP 228r• condor speed shop solid subframe, diff, fcab, mounts•Airlift air ride suspension•e36 ps rack•Eibach sways•16" Spal puller•bbk 310mm front & rear•17" BBS RS•
Build Thread
1993 alpine 2 325IC
•Ground control coilovers•16" BBS RS• momo woodgrainComment
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How do you figure? The super ETA uses the SAME head and valves as the 325i. It would make sense that the relief is the same size. Do you have a stock Super ETA piston next to you for comparison?Originally posted by Rc 415 View Post"I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj
85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER
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if the reliefs of SETA and I were the same it would most likely be that the crown would be the same. Given the SETA has more cc and much the same compression this does not add up.Originally posted by reelizmpro View Post
A SETA piston
Last edited by digger; 07-23-2011, 03:31 AM.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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same bore though, so IMO, reliefs should be the same.Originally posted by digger View Postif the reliefs of SETA and I were the same it would most likely be that the crown would be the same. Given the SETA has more cc and much the same compression this does not add up.
A SETA piston
You may have to shove those in a block.
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