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Subject secondo...
     
Posted by vorpalZed on April 11, 2019 at 10:35 AM
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In Reply To If you dont have any reputable local machinists, go IPP (n/m) posted by Stanky (BC) on April 10, 2019 at 11:23 PM
     
Message I have an IPP Stage III setup in my red track Zed. Spun #5 bearing at the track on my original motor. Sent the block down for IPP rebuild. Tracked it hard for a year after the install.

Spun #5 again at Spokane raceway. Deduced it was an oiling issue with the crank.

Had the engine completely rebuilt locally with a different crank in 2012. No issues since after dozens of track days.

Go IPP if you can deal close with them, for those further afield, I recommend finding a decent local engine builder if you're going for high Hp/ high abuse engines.

     
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