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Old 01-23-2018, 04:36 AM   #26
kellygnsd
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Quote:
Originally Posted by 2slofouru View Post
So these are designed for oem liner style with aluminum on the block and the heads for the fire ring to bite into apparently. Not for something that's been sleeved. Seems like a legit idea, so long as the composite holds up and the fire ring is a good bit harder than the aluminum.
The fire ring compresses on aluminum as well as it does on ductile iron. Why wouldn't these be compatible with sleeved motors?
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Old 01-23-2018, 07:11 AM   #27
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It was stated they bite into the aluminum, if that is the case, how hard would they be if they can bite into the aluminum and still compress? Iron is a little harder than block aluminum. Maybe I should have asked if they are designed for sleeved setups.
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Old 01-23-2018, 02:05 PM   #28
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I see. I thought stu was was talking about machining a receiver grove to accept the ring. Can't decide whether to O-ring or try these on my Benson block then.
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Old 01-23-2018, 10:16 PM   #29
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That is a question for IAG, the rings are only grooved on one side and the grooves go towards the heads.
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Old 01-23-2018, 10:41 PM   #30
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Hmm... so maybe the grooves just bite into the (known aluminum) heads to stabilize them once the heads are torqued. That would take the load off the surrounding composite. I'm sure someone from IAG will eventually explain all of the benefits. Hopefully this is a product that will allow a lot more higher power builds to survive.
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Old 01-23-2018, 11:11 PM   #31
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Hmm... so maybe the grooves just bite into the (known aluminum) heads to stabilize them once the heads are torqued. That would take the load off the surrounding composite. I'm sure someone from IAG will eventually explain all of the benefits. Hopefully this is a product that will allow a lot more higher power builds to survive.
Exactly!!
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Old 02-07-2018, 12:35 AM   #32
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That is a question for IAG, the rings are only grooved on one side and the grooves go towards the heads.
Yes, that is exactly what Athena had done. I guess JE for whatever reason won't supply them, so I'm glad someone is going through with it.
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Old 02-07-2018, 09:11 AM   #33
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Yes, that is exactly what Athena had done. I guess JE for whatever reason won't supply them, so I'm glad someone is going through with it.
These are Athena gaskets.

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Old 02-07-2018, 10:13 AM   #34
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Sweet, I didn't realize JE finally started selling the fire ring gaskets...either that or I forgot. I did check out of Subaru stuff for a couple years while doing Ford's race engines.

I'll ping my sales rep at JE and get the run down.
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Old 02-10-2018, 07:03 PM   #35
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I used Six Star. I've read bunch of people recommend Six Star.
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Old 02-11-2018, 10:49 PM   #36
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I used Six Star. I've read bunch of people recommend Six Star.
Do you work for Six Star
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Old 02-12-2018, 02:27 PM   #37
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Do you work for Six Star
Do you work at Graveyard?
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Old 02-12-2018, 10:41 PM   #38
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I used Six Star. I've read bunch of people recommend Six Star.
These are MLS gaskets so not really any different than all the rest out there. Not really anything to do with this thread.

On a side note I have 100 miles on these guys and so far so good. 120 psi on all 4 cyl running Amsoil break in.
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Old 02-13-2018, 01:03 PM   #39
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i cant find these for EJ20. are they only for EJ25? i would like a set of these for when i rebuild my 207 and cram 40psi down its throat
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Old 02-14-2018, 11:09 PM   #40
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You would have to call either outfront or IAG.
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Old 02-15-2018, 10:38 AM   #41
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gotcha, thanks!
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Old 02-22-2018, 05:55 PM   #42
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Anybody get some pulls with these unicorn gaskets? Curious to see how they handle over 35psi. Athena pn# OCONUS looks like 330040R.
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Old 02-23-2018, 12:36 AM   #43
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I've only hit 23 so far but still on break in for another 1000 miles. So far so good.


Last edited by stu; 02-23-2018 at 02:41 AM.
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Old 02-24-2018, 12:13 AM   #44
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Wife went out a made 743 on these headgaskets with no issues once we do some more breaking in she will be turning it up more.
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Old 02-26-2018, 05:03 PM   #45
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^^^ that's awesome. what turbo?
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Old 03-01-2018, 02:07 PM   #46
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Those composite gaskets with separate fire rings are 100% not manufactured by or associated with Fel-Pro.

Fel-Pro did just introduce new Performance head gaskets at PRI but they are MLS.

http://www.felpro.com/technical/tecb...d-gaskets.html

I have been running a pre-production set for about two years and in October of 2017 I took a trip out to their manufacturing and engineering facility to see some of the ways they test/validate the gaskets in the lab and then we ran some tests on my car to further validate the gaskets. All is well with them, hopefully I can finally jump on the E85 bandwagon and push them a bit harder this year.

The Fel-Pro performance gaskets were benchmarked against all of the options available at the time of their development. I can't say who all that includes but I can confirm the Fel-pro set offer some advantages over the other MLS options. They wouldn't have bothered producing them and launching into an already saturated market if not.
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Old 03-01-2018, 02:48 PM   #47
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Quote:
Originally Posted by STiSomeday View Post
Those composite gaskets with separate fire rings are 100% not manufactured by or associated with Fel-Pro.

Fel-Pro did just introduce new Performance head gaskets at PRI but they are MLS.

http://www.felpro.com/technical/tecb...d-gaskets.html

I have been running a pre-production set for about two years and in October of 2017 I took a trip out to their manufacturing and engineering facility to see some of the ways they test/validate the gaskets in the lab and then we ran some tests on my car to further validate the gaskets. All is well with them, hopefully I can finally jump on the E85 bandwagon and push them a bit harder this year.

The Fel-Pro performance gaskets were benchmarked against all of the options available at the time of their development. I can't say who all that includes but I can confirm the Fel-pro set offer some advantages over the other MLS options. They wouldn't have bothered producing them and launching into an already saturated market if not.
I put the felpro blues on N/A and Turbo cars. Haven't had a single issue with any of them.
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Old 03-01-2018, 09:31 PM   #48
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^^^ that's awesome. what turbo?
Compound 66mm and 80mm

E40
Very low timing(under 15*)
Charge pipe kept blowing off at 6200rpm
All on wastegate springs (28psi)
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Old 03-02-2018, 01:53 AM   #49
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Why only running to 6000 rpm.
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Old 03-02-2018, 09:41 AM   #50
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Why only running to 6000 rpm.
Because "DANGER TO MANIFOLD"
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