Posted By: SattyNoCar
MASSIVE explosion on engine dyno - 03/29/24 02:24 AM
Vortech supercharger was spun at almost double it's max RPM and let go. For how far and wide the shrapnel went, it's amazing no one got killed or seriously injured.
MASSIVE explosion on engine dyno
Vortech supercharger was spun at almost double it's max RPM and let go. For how far and wide the shrapnel went, it's amazing no one got killed or seriously injured.
Posted By: PhillyRag
Re: MASSIVE explosion on engine dyno - 03/29/24 02:58 AM
Window seems to be acrylic rather then polycarbonate material.
Posted By: MarkZ
Re: MASSIVE explosion on engine dyno - 03/29/24 03:34 AM
What was the failure? Chinese grade 8 fly wheel bolts or did someone not torque said bolts?
Posted By: Mr PotatoHead
Re: MASSIVE explosion on engine dyno - 03/29/24 04:26 AM
Ive always liked that guys attitude and outlook. As for the cat like reflex comment... watch any slow mo explosion where people react. The debris has flown past them, far past them before they even start the reaction motion.
Folks got lucky there.
Folks got lucky there.
Posted By: John Brown
Re: MASSIVE explosion on engine dyno - 03/29/24 04:57 AM
Originally Posted by MarkZ
What was the failure? Chinese grade 8 fly wheel bolts or did someone not torque said bolts?
At 28:06 in this latest video SM talks about what happened and why.
Posted By: poorboy
Re: MASSIVE explosion on engine dyno - 03/29/24 06:34 PM
For those that don't want to watch the video:
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
Posted By: Twostick
Re: MASSIVE explosion on engine dyno - 03/29/24 08:22 PM
Originally Posted by poorboy
For those that don't want to watch the video:
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
You got the carnage order reversed. Flywheel bolts broke first, disconnecting engine from absorber/load. Engine immediately went to 12,000 RPM followed a millisecond or 2 later by the compressor detonation.
Kevin
Posted By: A990
Re: MASSIVE explosion on engine dyno - 03/29/24 10:12 PM
Originally Posted by Twostick
Originally Posted by poorboy
For those that don't want to watch the video:
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
You got the carnage order reversed. Flywheel bolts broke first, disconnecting engine from absorber/load. Engine immediately went to 12,000 RPM followed a millisecond or 2 later by the compressor detonation.
Kevin
Similar to a transmission front drum explosion.
Posted By: abodyjoe
Re: MASSIVE explosion on engine dyno - 03/30/24 01:47 AM
i like watching his videos.. met him, his wife and son at sickweek this past january,, very nice people..
Posted By: HotRodDave
Re: MASSIVE explosion on engine dyno - 03/30/24 05:31 PM
Originally Posted by Twostick
Originally Posted by poorboy
For those that don't want to watch the video:
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
So lets turn the blower at nearly 2x the max rpm and wonder what happens?
Max RPM rating for the blower was 65,000, when it self destructed, the recorded RPM was over 105,000 RPM.
Oh! Look! it broke this other stuff too!
Well DUH!
You got the carnage order reversed. Flywheel bolts broke first, disconnecting engine from absorber/load. Engine immediately went to 12,000 RPM followed a millisecond or 2 later by the compressor detonation.
Kevin
Yup thats how it looks to me that it all went down.
Posted By: TJP
Re: MASSIVE explosion on engine dyno - 03/31/24 02:24 AM
I was just thinking a rev limiter would've saved somebody a WHOLE BUNCH of 🤑🤑🤑
OUCH!!! not sure who's gonna eat that but glad it's not me
OUCH!!! not sure who's gonna eat that but glad it's not me
Posted By: Twostick
Re: MASSIVE explosion on engine dyno - 03/31/24 06:21 AM
Originally Posted by TJP
I was just thinking a rev limiter would've saved somebody a WHOLE BUNCH of 🤑🤑🤑
OUCH!!! not sure who's gonna eat that but glad it's not me
OUCH!!! not sure who's gonna eat that but glad it's not me
A rev limiter has zero control over enertia.
Kevin
Posted By: stumpy
Re: MASSIVE explosion on engine dyno - 03/31/24 03:32 PM
They had a rev limiter but it happened so fast it diodn't have a chance to work
Posted By: moparx
Re: MASSIVE explosion on engine dyno - 03/31/24 05:28 PM
gives a new meaning to the word KA-BOOOM ! 
