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Old 02-26-2009, 05:52 PM   #293
FuJi K
Scooby Guru
 
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
Vehicle:
MY99 GF4 JDM 6spd
NF Performance

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My Ej22T spun a bearing after about 10k miles of hard driving almost everyweekend and 3 lapping days with a drift day as well. The engine has seen 8000rpms a few times this summer but rev limit was dropped back down to 7500rpms. Spun a bearing testing revs at 5500-7500rpms.

'03 WRX heads stock valvetrain
'91 Ej22T shortblock NEW OEM std bearings on 170k mile EJ22E crank
EJ22T oil pump

I did talk with a Machine shop that builds engines as well. He said that having a constant oil feed to the bearing when they're at TDC is a good thing. They done that to 4G63's and it worked for high RPMs. This double crossed drilled will make the difference in rod bearings bring constantly pressured with oil. Even double cross drilled, oil still has to go through the rod bearing and crank.
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