Black Widow back on track!! (for a little bit)
10-08-2009, 04:10 PM
#76
Rennlist Member
While on the subject of OIL FILTERS on race cars used exclusively on the track, I made the decision to run an 8 micron canister without bypass. My thinking was that the oil filter is inspected frequently and changed every 200 track miles, while the oil is replaced after every 600 track miles. The system holds 16 quarts.
The problem is that the only indication of a plugged filter would be loss of pressure. While there is a warning light for that, it only takes a moment to fry a motor. The next indication (smoke and noise) is too late. I've been mulling over possible fixes. I really don't want to run a conventional bypass and have been considering building a bypass to a second filter. Details appreciated from anyone taking this approach.
The problem is that the only indication of a plugged filter would be loss of pressure. While there is a warning light for that, it only takes a moment to fry a motor. The next indication (smoke and noise) is too late. I've been mulling over possible fixes. I really don't want to run a conventional bypass and have been considering building a bypass to a second filter. Details appreciated from anyone taking this approach.
10-08-2009, 05:28 PM
#78
Rennlist Member
im curious, what was the material that was ground up like a bearing failure? just the crank hitting the failed scraper??? was the material found in the filter the scraper or something else. Its also interesting that the noise was only audible during compression decel. It hurts my head to think about it any more!
mk
mk
10-08-2009, 05:31 PM
#79
Rennlist Member
dennis lost a motor due to the bearing failure, right? He only had one failure, right, or did he have another with the new engine too? maybe Im just thinking of the oil plug issue in the heads that required them to be pulled.
mk
mk
Hate to be the harbinger of bad news, but with Dennis' motor we found metal all through the Accusump, oil cooler, embedded in every bearing and around & inside the lifters. We could not flush the stock in-radiator oil cooler - we could see metal trapped inside it despite repeated flushes. Draining the Accusump and oil cooler may give you an early clue as to how widely the metal was distributed.
10-09-2009, 05:56 PM
#81
Race Director
Thread Starter
Dennis had two failures on literally back to back track days (a year apart)....the 1st engine lasted quite a long time with just a simple accusump...I think dennis got around 30 trackdays on it with an already used engine....
The 2nd engine was a used engine that was refreshed.....but something was not correct and it caused this fresh engine to experience rod bearing failure in under 200 miles....
His third engine is the hot cam 387whp setup he is running now....
