Unsolved mystery

SST159 · 11-05-2011, 10:33 AM

Looking for some input.
Last race out a few weeks ago between 1000’and finish line I heard the motor pop once.
After losing the round I drove back to the trailer thinking what was that all about.
I pulled the run up on the computer from Race Pac and I see a spike in the graph.
This explained the pop because it went up on the rev limiter chip.
The mystery is that the motor spiked only once and very briefly but the driveshaft did not. The converter slippage ratio was normal after the spike and the rest of the run was fine after the pop. Anyone ever experience this and if so what did they learn from it? Your input may save me from a wild wrench chase? I have to assume its either converter or trans related. PS converter is new with only 30 passes on it and Trans is PG with only 150 passes on it.

11-05-2011, 10:33 AM	#1
SST159 Member Join Date: Jul 2005 Posts: 317 Likes: 5 Liked 20 Times in 16 Posts	Unsolved mystery Looking for some input. Last race out a few weeks ago between 1000’and finish line I heard the motor pop once. After losing the round I drove back to the trailer thinking what was that all about. I pulled the run up on the computer from Race Pac and I see a spike in the graph. This explained the pop because it went up on the rev limiter chip. The mystery is that the motor spiked only once and very briefly but the driveshaft did not. The converter slippage ratio was normal after the spike and the rest of the run was fine after the pop. Anyone ever experience this and if so what did they learn from it? Your input may save me from a wild wrench chase? I have to assume its either converter or trans related. PS converter is new with only 30 passes on it and Trans is PG with only 150 passes on it. __________________ Drew Wonderly SST 159