Dyno failure!

[750hp]

I bought a large gear driven supercharger, fuel system and intake in preparation for a slight horsepower increase in my Chevelle. The parts that I bought were on a 98 octane street engine that made 1530 horsepower on this dyno.

Steve Morris makes some pretty impressive engine combinations and posts the results on his website. Here's the outcome from a twin supercharged motor that was set to make 2000+hp...



Ouch!

[750hp]

Input shaft into the absorber...

[Rog246]

By the look of that shaft it's been ready to go for a while !

But as Confucius say..."****e Happens !"
or was that Buddah !??! well it was one of them smart fellas anyway

[mreid]

"We got to get a bigger shaft!"

Did the engine survive? Losing the load at that rpm can be damaging.

[Rog246]

Originally Posted by mreid

"We got to get a bigger shaft!"
.

Thats funny !
It reminded me of what the missus said on our wedding night !

[Avmaviator]

Holy crap, that was quite something! I like the metal "thug" a few seconds after the break up.

[750hp]

Luckily the engine wasn't affected. Forces like that could have torn the block apart... I don't know the specs of that motor, but a high end twin F2 Procharged Morris motor is probably a $40k package...!

[AC-460]

There looks to be an issue where the flange was weld onto the shaft I would say the shaft is a high carbon steel and the flange is a lower grade.... it looks to have broken where the two have been welded together. I think maybe a metalurgic problem between the steels and the weld and the heat...maybe a little misalignment aswell... The shaft and the flange should be spun out of one piece of Billet...