17RubyShelbyGT350
First Ford - First Shelby
- Joined
- Nov 15, 2017
- Threads
- 13
- Messages
- 135
- Reaction score
- 149
- Location
- Gainesville, FL
- Vehicle(s)
- 2017 Shelby GT350-Conven Pkg - 1st Perf Mods Done
FWIW, given I am taking a brief respite between assignments and it is a dreary rainy day here, I gathered a smidgen of anecdotal info to satisfy my own curiosity. Of course, you already know that "real data on the VooDoo motor vs comparative failures on similar high output motors" does not exist (or more likely is not available to the general public) in the way you defined it. I don't know what a "similar high output motor" is defined as. If it is an engine that is marketed to the general public as a warrantied street legal automobile sold to the public through a dealership, to me, it should be comparable to any other car sold that way.I know what statistical significance is and how to ascertain it, I spent my career in life sciences R&D. That's why I asked the question - I was wondering if you had some real data on the voodoo motor vs comparative failure rates on similar high output motors.
So the following is anecdotal, not meant to be scientific, data. The site says that there are 303 people that claim to own GT350s. I went through this thread and counted everyone who said they personally owned a car which had the engine replaced and a very few who stated that they had personal knowledge of an engine replacement. Some posts referred to knowledge of additional engine failures, but I excluded them as being not as directly knowledgeable of those episodes. This was a subjective decision on my part - again as an anecdotal exercise.
Given my selection criteria against this thread only, 17 engine failures were tallied. That is approximately a 5.5% failure rate, given the membership = 303.
Again, no attempt here to define this as a statistically significant number, just an interesting one. There are simply too many variables and unknowns that would be needed to confer statistical significance. Also, these numbers SHOULD NOT be extrapolated out to make any assumptions about relevancy of these instances among 303 members to however many of these cars are ultimately produced.