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#31
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Bad tuning causing massive increase in dynamic compression ratio is more to blame than head studs IMO.
Kudos to Amtrapid for sharing his knowledge. |
#32
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Details, details. I can't give specifics of torque settings, lube used etc. That's a bit hard to say unless your there at the time but not too many people get to see this. But I do know factory gaskets were used along with ARP2000 head studs. I can say 100% the ARP's in my STi are definitely stretched. Hence why I will future proof it with stronger studs and a builder that I know and trust. Plus I've seen his work.
On the subject of experience. Who do you build your engines for Amtrapid? Do you do private work? Who on the forum is running around with one of your engines? Be good to know... Quote:
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MY06 STi |
#33
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Just LOL
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#34
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MY06 STi |
#35
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I used ARP 2000's head studs & case bolts in my semi-closed deck 207 build
It ran up to 1.8 bar on a VF34 It currently runs 1.5bar on a TD05-20g Motor has done 45,000km since being built. Perhaps it's just the 2.5's that need all the help they can get to hang together??
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[CENTER][SIGPIC][/SIGPIC][/CENTER] [CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER] |
#36
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99 wrx seized engine.
There are many examples of 257's in the U.S. with stock internals and 450 plus hp that have done over 50,000 Kms. If stock studs can hold this hp then stronger ones such as the arp2000 are hardly likely to be the cause. I think they are the result of some other error or failure.
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#37
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There was a noted failure with ARP with the 2000 arp.
Most were snapping not stretching |
Tags |
625+ cock riding club, 99, engine, rebuild, seized, wrx |
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