Car Manager Crashes When Engine Revs Past 8100 RPM

So, I was messing around with the fastest (impractical) car competition, and found out I needed to raise my rev limiter to increase my top speed. I revised my engine, and brought it up from 6000 to 8500 RPM, but every time I tried to adjust my top speed the game would crash. Not content to go to sleep at the perfectly unreasonable time of 4:00am... I decided I had to figure out why.
Mod edit:Post moved to support
Turns out, the highest RPM's I can go with this particular engine is 7600 for optimal HP and TQ. From 7600 - 8100 I received no further HP or TQ, but increased my MTBF, and the engine would work in the car fine. At 8200RPM I still experienced an increase in my MTBF during testing mode, but after I equipped it into my car and tried to adjust my top speed the game crashed. I've replicated this numerous times, and created a short YouTube video to show what happens. When the video abruptly ends, that's when the game crashed. Hope this helps.
The video can only be accessed through this link, as I don't generally make bug reports public on my channel:
http://youtu.be/vdg3y6pJXR4
Mod edit:Post moved to support
Turns out, the highest RPM's I can go with this particular engine is 7600 for optimal HP and TQ. From 7600 - 8100 I received no further HP or TQ, but increased my MTBF, and the engine would work in the car fine. At 8200RPM I still experienced an increase in my MTBF during testing mode, but after I equipped it into my car and tried to adjust my top speed the game crashed. I've replicated this numerous times, and created a short YouTube video to show what happens. When the video abruptly ends, that's when the game crashed. Hope this helps.
The video can only be accessed through this link, as I don't generally make bug reports public on my channel:
http://youtu.be/vdg3y6pJXR4