Welcome to the 2GNT Forum!
Home Site Background Info & Specs Mods & Tech Info CAPS Part Reviews Donate 2GNT Stickers
Search Printer-friendly copy 0 Users in Chat
Top 2GNT Technical Performance/Engine topic #136296
View in linear mode

Subject: "Stock 420A pistons? Pics." Previous topic | Next topic
740 turbo brickMar-21-12 08:35 PM
Member since Jun 09th 2008
831 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136296, "Stock 420A pistons? Pics."
Mar-21-12 08:35 PM by 740 turbo brick



          

What do they look like? Are they supposed to be flat or slightly domed? I got the head off my motor tonight and noticed they looked different than the ones I took out of the block Im building.......



Why do the ones on the left look like higher compression pistons?


95 Eclipse GS: 10.5:1, Crower 2's and MSII
186 WHP - 150 WTQ
14.697 @ 93.85 MPH......Gone, but not forgotten
99 420A Avenger: Given to my sister
99 GS OZ: Sold
03 Evo 8: Family Car with balls

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

Replies to this topic
RE: Stock 420A pistons? Pics., Global Ruler Of All ThingsDarkOne, Mar-21-12 08:38 PM, #1
RE: Stock 420A pistons? Pics., Wes Tank, Mar-21-12 08:40 PM, #2
RE: Stock 420A pistons? Pics., 740 turbo brick, Mar-21-12 08:50 PM, #3
      RE: Stock 420A pistons? Pics., Wes Tank, Mar-21-12 08:55 PM, #4
      RE: Stock 420A pistons? Pics., 740 turbo brick, Mar-21-12 09:00 PM, #5
           RE: Stock 420A pistons? Pics., Wes Tank, Mar-21-12 09:19 PM, #6
           RE: Stock 420A pistons? Pics., Global Ruler Of All ThingsDarkOne, Mar-21-12 09:26 PM, #7
           RE: Stock 420A pistons? Pics., Moderatorbullettdsm, Mar-22-12 03:12 AM, #8

Global Ruler Of All ThingsDarkOneMar-21-12 08:38 PM
Donating 2GNT member
14955 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136297, "RE: Stock 420A pistons? Pics."
In response to Reply # 0
Mar-21-12 08:42 PM by DarkOne



          

The piston on the left is a stock 2GNT piston. You've got what look like sohc neon pistons in the block.

Stupid Swype...

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

Wes TankMar-21-12 08:40 PM
Member since Oct 13th 2006
214 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136298, "RE: Stock 420A pistons? Pics."
In response to Reply # 0




          

Here's what my stock pistons looked like.

_____________________________________________
95TalonOwner on DSMTuners.com
Wes Tank on WiDSM.org

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

    
740 turbo brickMar-21-12 08:50 PM
Member since Jun 09th 2008
831 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136299, "RE: Stock 420A pistons? Pics."
In response to Reply # 2




          

:| WOW. So this entire time Ive had SOHC pistons in this block??


95 Eclipse GS: 10.5:1, Crower 2's and MSII
186 WHP - 150 WTQ
14.697 @ 93.85 MPH......Gone, but not forgotten
99 420A Avenger: Given to my sister
99 GS OZ: Sold
03 Evo 8: Family Car with balls

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

        
Wes TankMar-21-12 08:55 PM
Member since Oct 13th 2006
214 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136300, "RE: Stock 420A pistons? Pics."
In response to Reply # 3




          

Yes sir.

_____________________________________________
95TalonOwner on DSMTuners.com
Wes Tank on WiDSM.org

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

        
740 turbo brickMar-21-12 09:00 PM
Member since Jun 09th 2008
831 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136301, "RE: Stock 420A pistons? Pics."
In response to Reply # 3




          

Id like to know how this happened. Either someone rebuilt it a long time ago like that, or got a block out of a neon for a rebuild. Whats the compression ratio on those pistons?


95 Eclipse GS: 10.5:1, Crower 2's and MSII
186 WHP - 150 WTQ
14.697 @ 93.85 MPH......Gone, but not forgotten
99 420A Avenger: Given to my sister
99 GS OZ: Sold
03 Evo 8: Family Car with balls

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

            
Wes TankMar-21-12 09:19 PM
Member since Oct 13th 2006
214 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136303, "RE: Stock 420A pistons? Pics."
In response to Reply # 5




          

Quote from neons.org



SOHC pistons with a DOHC head=9.3:1
DOHC pistons with a DOHC head=9.6:1
SOHC pistons with a SOHC head=9.8:1
DOHC pistons with a SOHC head=10.3:1

_____________________________________________
95TalonOwner on DSMTuners.com
Wes Tank on WiDSM.org

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

            
Global Ruler Of All ThingsDarkOneMar-21-12 09:26 PM
Donating 2GNT member
14955 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136304, "RE: Stock 420A pistons? Pics."
In response to Reply # 5




          

Originally posted by 740 turbo brick
. Whats the compression ratio on those pistons?


A quick google search says a dohc head on a sohc block yields 9.3:1.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

            
ModeratorbullettdsmMar-22-12 03:12 AM
Donating 2GNT member
2676 posts,
Click to send email to this author Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list
#136307, "RE: Stock 420A pistons? Pics."
In response to Reply # 5


          

Originally posted by 740 turbo brick
Id like to know how this happened......got a block out of a neon for a rebuild.

^^This. Guy threw a rod and had a Neon bottom end available. Just swapped out bottom ends.

My guess.

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

  

Report This Post to Admin Printer-friendly copy | Reply | Reply with quote | Top

Top 2GNT Technical Performance/Engine topic #136296 Previous topic | Next topic
Powered by DCForum+ Version 2.2
Copyright 1997-2005 DCScripts.com, Copyright 2005-2026 2gnt.com
Generated in 0.064 seconds, executing 30 queries.