Ej257 rebuild

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turboedbug
Posts: 447
Joined: Tue Apr 18, 2006 1:22 pm
Location: washington

Ej257 rebuild

Post by turboedbug » Sat Dec 23, 2017 5:45 pm

Well some parts are starting to show up ImageImageImage

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1969 beetle rolling subie power
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billz60vw
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Re: Ej257 rebuild

Post by billz60vw » Sun Dec 24, 2017 1:10 pm

What cc''s are those pistons? Looks like you're going to make a high compression motor. What heads?

turboedbug
Posts: 447
Joined: Tue Apr 18, 2006 1:22 pm
Location: washington

Re: Ej257 rebuild

Post by turboedbug » Sun Dec 24, 2017 1:24 pm

billz60vw wrote:What cc''s are those pistons? Looks like you're going to make a high compression motor. What heads?
The compression would come out to 9:1 with ej257 heads.
I dont have the printout of the pistons with all the details on me.
I might be using a different comp ratio As that all can change with head gasket thickness, mods to combustion chamber.
I dont have 257 heads currently but do have 20k's and 205's laying around. Might end up using one of those but thats still all up in the air.



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1969 beetle rolling subie power
Ej20k vf-22 roller bearing turbo
Wright gearbox pro street -soon to be suby 5 speed
EMS stinger 4424 ecu
Wide 5 discs all the way around

User avatar
billz60vw
Posts: 183
Joined: Fri Feb 12, 2010 3:46 am
Location: portland or

Re: Ej257 rebuild

Post by billz60vw » Sun Dec 24, 2017 2:04 pm

That sounds good just make sure you work the combustion chambers and don't try changing compression with head gasket thickness or you will run in to problems/small window with detonation.

turboedbug
Posts: 447
Joined: Tue Apr 18, 2006 1:22 pm
Location: washington

Re: Ej257 rebuild

Post by turboedbug » Sun Dec 24, 2017 2:09 pm

billz60vw wrote:That sounds good just make sure you work the combustion chambers and don't try changing compression with head gasket thickness or you will run in to problems/small window with detonation.
Thanks for the tip. Been doin alot of reading on nasioc. What u just said has been suggested alot lol

Sent from my SM-J727T using Tapatalk

1969 beetle rolling subie power
Ej20k vf-22 roller bearing turbo
Wright gearbox pro street -soon to be suby 5 speed
EMS stinger 4424 ecu
Wide 5 discs all the way around

User avatar
billz60vw
Posts: 183
Joined: Fri Feb 12, 2010 3:46 am
Location: portland or

Re: Ej257 rebuild

Post by billz60vw » Sun Dec 24, 2017 5:47 pm

If you didn't know already use the 20k heads!!!don't bother with the 205's.they are prone to crack between spark plug and valve..

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