drop in pistons

Boxer112 · 04-23-2006, 02:34 AM

I have a new 06 STI with 500 miles and I want to replace my pistons. I a want to know who sells drop in pistons, so I wont have to have everything balanced.

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nxttruck2002 · 04-23-2006, 02:42 AM

Quote:

Originally Posted by Boxer112

so I wont have to have everything balanced.

?????

Boxer112 · 04-23-2006, 03:32 AM

Not balanced but bored to meet clearence issues.

nxttruck2002 · 04-23-2006, 03:37 AM

Why don't you properly break the motor in frist...?

djviper · 04-23-2006, 04:20 AM

if your spending the money on putting up rated pistons in what is essentialy a new block id say spend the extra few dollars and get a matched set of pistons, incedently why?

and nxttruck, no real point breaking the motor in as when he changes the pistons he will have to run it in again as new to seat the new rings

Boxer112 · 04-23-2006, 06:02 AM

i was thinking since the block is still so new, i can drop the pistons in and not have to worry about sealing issues..am I in the right frame of mind? if not guide me, no use in spending $2300 for new block when i can spend $600 for pistons

STEALTH-WRX · 04-23-2006, 12:33 PM

All of the blocks have inconsistancies in the bores. The cylinders have "A" and "B" sleeves which are something like 2/10 - 3/10 of a thousandth different. I would suggest honing the block the block and getting a final bore. Then get that bore and order some pistons. I know most people dont like JE but they have a really bad ass new design for the EJ257 that they have availble that no one knows about. I have seen them with my own eyes.

Sko · 04-23-2006, 01:35 PM

Wiseco's? Just about any set of pistons will drop in be fine and give you no trouble. Any set of forged pistons will probably outlive the block, or at least the rods.

flycaster · 04-23-2006, 01:47 PM

Quote:

Originally Posted by STEALTH-WRX

The cylinders have "A" and "B" sleeves which are something like 2/10 - 3/10 of a thousandth different.

Actually, the "allowed" tolerance between the A and B sleeves is a full thou. On a recent new block we just built, it was more.

Boxer, at the very least measure to double-check and touch re-hone for better new ring seating. You can do this without splitting the case if you have someone who knows what they're doing.

04-23-2006, 02:34 AM	#1
Boxer112 Scooby Specialist Member#: 78751 Join Date: Jan 2005 Chapter/Region: Tri-State Location: Harlem, New York Vehicle: 2006 WRX STi Black	drop in pistons I have a new 06 STI with 500 miles and I want to replace my pistons. I a want to know who sells drop in pistons, so I wont have to have everything balanced. * Registered users of the site do not see these ads.

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04-23-2006, 03:32 AM	#3
Boxer112 Scooby Specialist Member#: 78751 Join Date: Jan 2005 Chapter/Region: Tri-State Location: Harlem, New York Vehicle: 2006 WRX STi Black	Not balanced but bored to meet clearence issues.

04-23-2006, 03:37 AM	#4
nxttruck2002 Scooby Specialist Member#: 90879 Join Date: Jul 2005 Chapter/Region: TXIC Location: Houston, Texas	Why don't you properly break the motor in frist...?

04-23-2006, 04:20 AM	#5
djviper Scooby Specialist Member#: 107276 Join Date: Feb 2006 Location: north london England Vehicle: 99 V.R.Special WRC blue	if your spending the money on putting up rated pistons in what is essentialy a new block id say spend the extra few dollars and get a matched set of pistons, incedently why? and nxttruck, no real point breaking the motor in as when he changes the pistons he will have to run it in again as new to seat the new rings

04-23-2006, 06:02 AM	#6
Boxer112 Scooby Specialist Member#: 78751 Join Date: Jan 2005 Chapter/Region: Tri-State Location: Harlem, New York Vehicle: 2006 WRX STi Black	i was thinking since the block is still so new, i can drop the pistons in and not have to worry about sealing issues..am I in the right frame of mind? if not guide me, no use in spending $2300 for new block when i can spend $600 for pistons

04-23-2006, 12:33 PM	#7
STEALTH-WRX Scooby Specialist Member#: 7822 Join Date: Jun 2001 Chapter/Region: SCIC Location: Huntington Beach, California Vehicle: 2002 WRX Multi layer snot green	All of the blocks have inconsistancies in the bores. The cylinders have "A" and "B" sleeves which are something like 2/10 - 3/10 of a thousandth different. I would suggest honing the block the block and getting a final bore. Then get that bore and order some pistons. I know most people dont like JE but they have a really bad ass new design for the EJ257 that they have availble that no one knows about. I have seen them with my own eyes.

04-23-2006, 01:35 PM	#8
Sko Scooby Specialist Member#: 90396 Join Date: Jul 2005 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2005 Legacy 2.5i Brilliant Silver Metallic	Wiseco's? Just about any set of pistons will drop in be fine and give you no trouble. Any set of forged pistons will probably outlive the block, or at least the rods.