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Old 03-02-2018, 03:06 PM   #51
boostinsticnd
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Quote:
Originally Posted by stu View Post
Why only running to 6000 rpm.
Kept blowing the charge pipes off, with a meh bead and T clamps.

We have since increased bead size, folded the end of the pipe out and put hairspray on there.
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Old 03-02-2018, 06:23 PM   #52
user1029
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Which brand of hairspray? I personally use L'Oréal
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Old 03-03-2018, 12:42 PM   #53
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Which brand of hairspray? I personally use L'Oréal

The sticky kind haha.

You'd be surprised how many people use hair spray if you think i'm kidding haha.
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Old 03-03-2018, 02:31 PM   #54
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^^^Its true...
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Old 03-03-2018, 09:23 PM   #55
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Quote:
Originally Posted by boostinsticnd View Post
Kept blowing the charge pipes off, with a meh bead and T clamps.

We have since increased bead size, folded the end of the pipe out and put hairspray on there.
What is she revving it out to now? it makes great power.
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Old 03-04-2018, 12:05 AM   #56
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What is she revving it out to now? it makes great power.
Will be going to 8-8100 for sure
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Old 03-04-2018, 03:34 AM   #57
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Quote:
Originally Posted by boostinsticnd View Post
The sticky kind haha.

You'd be surprised how many people use hair spray if you think i'm kidding haha.
what is this sorcery you are talking about?
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Old 03-04-2018, 11:36 AM   #58
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Quote:
Originally Posted by Hyper View Post
what is this sorcery you are talking about?
Guys have been doing this for years.

Gotta think, whats hair spray? Basically a light spray glue.

Now, if you Clamped down on spray glue it will increase the friction between pipes and coupler. Allowing a strong clamping force and less of a chance of blowing charge pipes at higher psi.
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Old 03-05-2018, 04:02 PM   #59
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Quote:
Originally Posted by boostinsticnd View Post
Guys have been doing this for years.

Gotta think, whats hair spray? Basically a light spray glue.

Now, if you Clamped down on spray glue it will increase the friction between pipes and coupler. Allowing a strong clamping force and less of a chance of blowing charge pipes at higher psi.
All the real racers JBweld the couplers on.

Also we fill our blocks up with cement for max stiffness.
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Old 03-06-2018, 11:46 AM   #60
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Back to the original post, i've got the new gaskets with my Stage 4 block and built heads, have it together soon. Then will be waiting on a turbo kit and a few other little odds and ends to arrive to toss it all back together and get it in the car.

Hoping to have everything done and bugs worked out to get the car on the dyno in may and see what the gen 2 6266 can put down.
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Old 03-06-2018, 01:55 PM   #61
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Quote:
Originally Posted by linkubus06 View Post
All the real racers JBweld the couplers on.

Also we fill our blocks up with cement for max stiffness.
cement - like viagra for your short block
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Old 08-16-2018, 11:30 PM   #62
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Necro bump...Any more input on these gaskets? The draw seems to be the fire ring. Is there a power level where these are a better idea than a MLS gasket like the JE proseal? Or are they just better in general?

Lets say you've got both gaskets, JE and these, in hand -- On a relatively mild build, ~400hp, EFR6758, built short block, ARP625s, which gasket would you throw on there? Is there a compelling reason to use one over the other?

I contacted IAG, and was basically told 'high hp, high boost'. I'm not doing anything too crazy with my build, but that doesn't narrow it down much.
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Old 08-17-2018, 01:22 AM   #63
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Most 400-500 whp builds aren't having rampant HG failures. Guys making 1000 whp running all the boost and liftind heads while running 14mm or 1/2 headstuds are using these. IAG gave you good info.

Would it hurt to run them. Probably not.
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Old 11-27-2018, 09:48 AM   #64
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any updates on these?
Also, I only see them in .051" size, any clue if other sized will be available?
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Old 12-07-2018, 05:12 PM   #65
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any updates on these?
Also, I only see them in .051" size, any clue if other sized will be available?


Doubtful for different sizes as they use a fire ring which isn’t effective any smaller and the larger the thickness of the ring would become a stress point on the head causing potential issues there.
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Old 12-07-2018, 05:56 PM   #66
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So far so good,11 months 35-40 psi.
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Old 12-07-2018, 11:06 PM   #67
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The best gasket is the one that doesn't get installed. My current build uses custom copper sealant rings around the cylinders, oil and water jackets. No head gasket. I'm at 10k miles with tons of abuse and big turbo.
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Old 12-08-2018, 09:47 AM   #68
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The best gasket is the one that doesn't get installed. My current build uses custom copper sealant rings around the cylinders, oil and water jackets. No head gasket. I'm at 10k miles with tons of abuse and big turbo.


Technically that is still installing some sort of gasket. I get your point but it won’t ultimately have any effect of keeping a head from lifting.

Fasteners and clamping force is ultimately going to be the end all of preventing the head from lifting which is a large part of high horsepower failures, but even these things limited.
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Old 12-09-2018, 12:31 AM   #69
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Originally Posted by bp05obxt View Post
Technically that is still installing some sort of gasket. I get your point but it won’t ultimately have any effect of keeping a head from lifting.

Fasteners and clamping force is ultimately going to be the end all of preventing the head from lifting which is a large part of high horsepower failures, but even these things limited.
That's fair. I run ARP CA625's heat cycled and torqued down to 105ft-lbs. My heads have never lifted and I have been running various 30psi+ configurations since 2011.
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Old 12-09-2018, 01:30 PM   #70
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That's fair. I run ARP CA625's heat cycled and torqued down to 105ft-lbs. My heads have never lifted and I have been running various 30psi+ configurations since 2011.
What turbo? I lifted my heads on 1/2 studs torqued to 125 outer 135 centers running 40+ psi
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Old 12-09-2018, 10:37 PM   #71
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Did the threads pull out or did the studs plastically deform? How do you tell if the heads lifted or the gasket sealing just failed due to poor surface finishing/flatness or excessive cylinder pressure?

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What turbo? I lifted my heads on 1/2 studs torqued to 125 outer 135 centers running 40+ psi
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Old 12-12-2018, 01:26 AM   #72
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I run an ATP GTX3582R for drag and an upgraded VF48 auto x. The smaller 625's have more tension at 135ftlbs than 1/2" or even 14mm's studs.
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Old 12-12-2018, 07:04 PM   #73
stu
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I run an ATP GTX3582R for drag and an upgraded VF48 auto x. The smaller 625's have more tension at 135ftlbs than 1/2" or even 14mm's studs.
Not true! Im not sure who you are talking to but you got some bad info. If they were the same diameter then yes you are correct but not even close when apples to apples. If your assumption were true then every Subaru shop would be using 625+ but they aren't all big builds will be using 1\2 or 14mm studs. But yes the 625+ are still quite a bit better than the 11mm 2000s but that's about it.

25% stronger than 625+ studs and 40% stronger than 11mm ARP 2000's
reduced shank diameter (allows for no head gasket modifying)
more thread engagement in block over 11mm studs
uses stock alignment pins without modifying case or heads
over 200ft/lbs tested for stud "pull-out" in block
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Old 12-13-2018, 06:13 AM   #74
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Not true! Im not sure who you are talking to but you got some bad info. If they were the same diameter then yes you are correct but not even close when apples to apples. If your assumption were true then every Subaru shop would be using 625+ but they aren't all big builds will be using 1\2 or 14mm studs. But yes the 625+ are still quite a bit better than the 11mm 2000s but that's about it.

25% stronger than 625+ studs and 40% stronger than 11mm ARP 2000's
reduced shank diameter (allows for no head gasket modifying)
more thread engagement in block over 11mm studs
uses stock alignment pins without modifying case or heads
over 200ft/lbs tested for stud "pull-out" in block
According to this article. He is infact correct.

At 135 ft-lb, the 625s, do produce more tension than 1/2" or 14mm studs.

But its not the full story. Tension force VS rotation torque required to achieve that tension VS fastener elongation at tension VS fastener diameter all come into play here.... I suggest you read this article.


https://www.maracing.net/choosing-the-right-head-stud/
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Old 12-13-2018, 07:10 AM   #75
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I am curious to see what ARP claims vs what it tests in real life

I currently support a local team of Russian guys with access to various metals (which are vastly available in any configuration and compound for cheap here) and manufacture, who are trying to create a stronger and more affordable headstuds (including 14mm)

I recently gave them ARP CA625+ headstud that they will be torturing and testing

but this probably belongs to a separate thread
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