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Old 01-03-2008, 11:57 AM   #57 (permalink)
UTRacerX9
165 mph and counting...
 
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Join Date: Sep 2001
Location: Dallas, TX
Drives: like Jason Bourne
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Default Re: What is with Rod Bearings dying?

Quote:
Originally Posted by Patryn View Post
One thing I have noticed is that I've never came across a stock engine that has spun the bearing under 100K. It has always been rebuilds.
Then you haven't searched the archives much. Read my post and click the link I posted on the last page. There are many of us in that post with spun bearings that happened on stock engines under 100k. Mine in particular was at 59k (right under the 60k warranty limit, thank god.)

My current car has a stock shortblock, with 91k on it now. Only time I've ever opened the engine was when I took the heads off after my adjustable cam gears slipped a bit and the valves hit the pistons just slightly on #3.

If I do spin a bearing, and I decide to keep the car, I will be going with a forged crank and I will have it crossdrilled. I also thought about using two rod bearing sets, and just using the "grooved" sides, but I think that dramatically cuts down on surface area needed.
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1991 Stealth Twin Turbo
Mods: 13T turbos, Stillen downpipe, HKS Super Drager catback, Fidanza adjustable cam gears, UR flywheel, DXD-F, DSM sidemount intercoolers, front mount oil cooler, LS6 MAFT, DN Y-pipe, gutted precats, ported exhaust manifolds, Apexi AVC-R set to 1.0 kg/cm, Greddy BOV type S, Supra pump, and an Unorthodox racing pulley.
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