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Thread: Topspeed's Suby motor package strikes again!!

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    Speed Junkie JDM-STI's Avatar
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    Quote Originally Posted by 5.7_Tundra
    Thats kinda funny considering you told me once the motor starts up for the first time, the rings start seating immediately. Why wait and "rack up" more miles? Why not tune it more aggressive now?
    They do "start" seating right away. But it takes boost pressure and high temperatures to seat completely. Do not confuse the "starting" and "completing".
    On a side note, the car performs wonderfully on the street. It is super strong to be running minimal timing. I can't wait for the 30+ psi meth tune.

    Last edited by JDM-STI; 03-26-2008 at 08:14 PM.

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    IAs Most Hated OG!! BLK JDM's Avatar
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    Quote Originally Posted by JDM-STI
    They do "start" seating right away. But it takes boost pressure and high temperatures to seat completely. Do not confuse the "starting" and "completing".
    On a side note, the car performs wonderfully on the street. It is super strong to be running minimal timing. I can't wait for the 30+ psi meth tune.

    I wouldn't say it takes boost pressure to seat completely. It takes compression, vacuum, heat, and other smaller variables to seat rings completely. Drive cycles with varying load and RPMs is what seats rings. This has to be done w/ a good tune for proper sealing. Pre-Igniton, detonation, running too rich, and overheating play a devastating role on rings sealing correctly. That's why you break a car in on the dyno whether it be turbo or N/A.
    Quality Perfomance and Fabrication!!

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    Speed Junkie JDM-STI's Avatar
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    Quote Originally Posted by BLK JDM
    I wouldn't say it takes boost pressure to seat completely. It takes compression, vacuum, heat, and other smaller variables to seat rings completely. Drive cycles with varying load and RPMs is what seats rings. This has to be done w/ a good tune for proper sealing. Pre-Igniton, detonation, running too rich, and overheating play a devastating role on rings sealing correctly. That's why you break a car in on the dyno whether it be turbo or N/A.
    5.7 Tundra was the one who needed the complete explanation. I know the break in routine.
    2005 STI~Siegel tuned TopSpeed RR1 race longblock and UR 35R kit~550+ WHP coming soon!

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    Not bad... for a Subaru.

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    Speed Junkie JDM-STI's Avatar
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    Quote Originally Posted by iloveboost
    Not bad... for a Subaru.
    Especially on a very conservative tune.
    2005 STI~Siegel tuned TopSpeed RR1 race longblock and UR 35R kit~550+ WHP coming soon!

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    Speed Junkie JDM-STI's Avatar
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    520whp/462wtq (file 41) on 93 octane and 75/25 meth/water mix. 26.5 peak psi tapering to 23 psi at redline. More to came after the AVCR install. The Hallman manual wouldn't hold much more at redline on the dyno.
    Break in was done with a .82ar hotside and the high boost was done with the .63ar. You can see the difference down low without much change up top. Run file 18 (.82ar) and 27 (.62ar) were identical as far as boost and timing and almost identical on the graph except for down low. The difference down low is night and day on the street.

    2005 STI~Siegel tuned TopSpeed RR1 race longblock and UR 35R kit~550+ WHP coming soon!

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