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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> Dyno disaster
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Topic Review (Newest First)
03-01-2005 06:55 PM
NXS Well, you still got a good converter?!

Oh, I need that shifter bracket!
03-01-2005 06:51 PM
Crosley I tossed a few drive lines out in my high school daze.... did one in front of a crowd after i dropped ( LOL) my girl friend off. Front u-joint broke
03-01-2005 06:38 PM
Ghetto Jet WoW that's nuts!

That was your GTO?
03-01-2005 11:56 AM
M&M CUSTOM I guess if it's going to happen it is best it was on the dyno than on the street where it "could" have been worse, "could" have scared the snot out of you and ended up causing an accident, and "could" have cost a towing bill to add to what was already destroyed.

Oh, I edited your post to show the picture without having to click on the link.
03-01-2005 07:51 AM
willys36@aol.com Fun times at Ridgemont hi! Those are the events in life that check the ol' ticker.
02-28-2005 09:26 PM
lust4speed
Dyno disaster

We were running the '67 GTO on the chassis dyno at the local technical institute, and had completed two abbreviated runs without incident. We then went pedal to the metal on a full load 3,000 to 6,000 run in high gear. At 5,300 RPM and 129 MPH all hell broke loose. The student behind the wheel and the student running the dyno switch evacuated the dyno room at a full run, leaving the instructor and I to run in and shut the car down and hit the stop on the dyno. Half a driveshaft makes a fair amount of racket coasting down from that speed as it thrashes the underside of the car. Surprisingly, the 3" exhaust system took almost all of the blunt trama, and while the exhaust pipes were squished flat, the floorpan suffered very little. The driveshaft safety loop held the force for awhile until the bowing driveshaft became too short to stay inside. The trans totally seperated around the bellhousing and in front of the tailshaft area. Note that the driveshaft had absolutely no rust, and there was no vibration at all until the instant catastrophic failure. Totally destroyed was the Turbo 400 trans, stock driveshaft with HD universal joints, and the 3" exhaust system.


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