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Old 09-05-2020, 06:23 PM   #1
xbcaraudio
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Default Closed Deck Cooper Oring + MLS gasket!

Hello ! I'm just starting to puzzle and engine build know , and i would like to do it right at once !

Looking wich route to take to max out my GTX3076R.82 gen 1 with all the supporting mods !

Route # 1 Oem MLS ej257 gasket + cooper oring on top ?

Route # 2 JE PRO seal + cooper oring on top?

For both setups would you recommended 1/2 , 13mm or 14mm studs?

I know the IAG fire lock its the ultimate head gasket setup to date but I'm looking other options that proven to work

Thanks in advance to point me in the right direction!!!
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Old 09-05-2020, 09:01 PM   #2
user1029
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I had 14mm studs, JE pro seal, Copper Oring for 45k miles at 38-40psi with perfect compression before my GSC valvespring broke it is definitely a set up that works
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Old 09-05-2020, 10:37 PM   #3
xbcaraudio
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Quote:
Originally Posted by user1029 View Post
I had 14mm studs, JE pro seal, Copper Oring for 45k miles at 38-40psi with perfect compression before my GSC valvespring broke it is definitely a set up that works
Great to hear that ! Without doubt it works for you !
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Old 09-06-2020, 10:07 AM   #4
xbcaraudio
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Anyone that can share with us your recommendation or experience?

Thanks !
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Old 09-08-2020, 02:14 PM   #5
collin2ps
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I didnt go the copper oring route. However, i am using the JE/Athena fire ring gasket with 1/2 studs and have had no issues 45psi 750whp, 20 plus track passes and 2k miles of street driving.
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Old 09-08-2020, 06:23 PM   #6
xbcaraudio
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Quote:
Originally Posted by collin2ps View Post
I didnt go the copper oring route. However, i am using the JE/Athena fire ring gasket with 1/2 studs and have had no issues 45psi 750whp, 20 plus track passes and 2k miles of street driving.
Great to know that your setup it's holding fine 45psi ! JE/Athena fire ring gasket with 1/2 studs !

A poll will be great to decide which route to take Nowadays!
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Old 09-10-2020, 12:22 PM   #7
Homemade WRX
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I'd go RCM 14mm studs, JE pro seal/Athena, Copper Oring.

Athena also makes a fire-ring style headgasket. JE supposedly sells it now.
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Old 09-10-2020, 06:35 PM   #8
xbcaraudio
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Quote:
Originally Posted by Homemade WRX View Post
I'd go RCM 14mm studs, JE pro seal/Athena, Copper Oring.

Athena also makes a fire-ring style headgasket. JE supposedly sells it now.
Sounds like a great setup for sure!
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Old 09-20-2020, 04:07 PM   #9
xbcaraudio
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Has anyone tried cooper oringed oem block with mls gaskets & std ARP 2000 to 35psi with success?

Thanks !
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Old 09-20-2020, 10:20 PM   #10
user1029
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Quote:
Originally Posted by xbcaraudio View Post
Has anyone tried cooper oringed oem block with mls gaskets & std ARP 2000 to 35psi with success?

Thanks !
ARP 2000 is the weakest, I would go at least ARP age 625 for anything above 30psi. I wouldn***8217;t go higher than 35psi even with those ARP 625 bolts because the higher boost pressures would rip the threads out. If you want higher boost pressure then you need to do IAG 14mm studs where they actually redrill new threads to accommodate the 14mm bolts
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Old 09-25-2020, 11:58 AM   #11
BeastianSTI
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I'm running a GTX3576 with the JE Proseal gaskets. I didn't end up upgrading my head studs beyond the ARP2000s, so .... boost is capped to 30 PSI.

For 93 octane, my tuner limited boost to ~25 PSI, and then on e85 it's limited to 30.

I know a local shop that has had good luck running the ARP age 625s with the IAG firelock gasket. They were able to push 38-40 PSI if I recall correctly.
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Old 09-25-2020, 12:04 PM   #12
BeastianSTI
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I think if I had to upgrade, I'd go Firelock with 14mm heads studs. I'd have IAG do all the machine work so there'd be no issues.

I don't think it's worth it to do copper o-ringing nowadays, given the availability of the firelock setup (just a personal preference I guess).
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