427 dyno gone wrong! (Pics and Video)
Thread Starter
Instructor
Joined: Mar 2009
Posts: 225
Likes: 1
From: Dripping Springs TX
427 dyno gone wrong! (Pics and Video)
**Update in Post 24**
Textralia oz 700 is on national backorder for at least 90 days so I need to pick another clutch. I'm eyeing the RPS twin carbon. Input appreciated.
Hello All,
As some quick back story of my luck, My '01 Z06 had a 418cid LS2 in it at time of purchase. At the begining of the year, the cam had too much lift for the heads and needless to say the engine ate itself from the inside out. Wiped cam, damage to heads, pistons, sleeves.... yada yada. Put in an ERL built 427. (Thanks to JC02Z) ERL 427, ETP 245's, Thunder Racing V3 cam, Fast 107/107 setup. Had the motor street tuned to put some miles on it. Finally got around to Dyno tuning it today. My tuner and I went to a local shop here, strapped it down and made a few pulls and adjustments. Air, fuel, timing and all aspects were looking just shy of perfect. The dyno is a mustang dyno. I wasn't in it for the numbers but instead the tune itself. It was putting 440/440 rwhp/rwtq. seemed a little low, They were questioning the clutch. The clutch is a Textrailia OZ700. The graphs showed no sign of slippage. As always, on the last run, the car pulled hard and fast to 6800, as soon as they pushed the cluth, sparks, smoke, and the shrapnel followed. Housing and clutch all over the floor... got the car towed home and here I sit. I will get it towed tomorrow to a shop for full assessment. here are some pics and the dyno run. The camera shot falling at the end is me doubling over from the sound. Not the best vid, but here it is....
PICS:
VIDEO:
Textralia oz 700 is on national backorder for at least 90 days so I need to pick another clutch. I'm eyeing the RPS twin carbon. Input appreciated.
Hello All,
As some quick back story of my luck, My '01 Z06 had a 418cid LS2 in it at time of purchase. At the begining of the year, the cam had too much lift for the heads and needless to say the engine ate itself from the inside out. Wiped cam, damage to heads, pistons, sleeves.... yada yada. Put in an ERL built 427. (Thanks to JC02Z) ERL 427, ETP 245's, Thunder Racing V3 cam, Fast 107/107 setup. Had the motor street tuned to put some miles on it. Finally got around to Dyno tuning it today. My tuner and I went to a local shop here, strapped it down and made a few pulls and adjustments. Air, fuel, timing and all aspects were looking just shy of perfect. The dyno is a mustang dyno. I wasn't in it for the numbers but instead the tune itself. It was putting 440/440 rwhp/rwtq. seemed a little low, They were questioning the clutch. The clutch is a Textrailia OZ700. The graphs showed no sign of slippage. As always, on the last run, the car pulled hard and fast to 6800, as soon as they pushed the cluth, sparks, smoke, and the shrapnel followed. Housing and clutch all over the floor... got the car towed home and here I sit. I will get it towed tomorrow to a shop for full assessment. here are some pics and the dyno run. The camera shot falling at the end is me doubling over from the sound. Not the best vid, but here it is....
PICS:
VIDEO:
Last edited by 01Z0Sixx; Oct 31, 2011 at 05:24 PM. Reason: update
Burning Brakes
Joined: Mar 2008
Posts: 983
Likes: 36
From: Middle Of Kali CA
WOW,
glad no one was hurt as that is ugly.
Sorry to hear of your bad luck. Was that clutch in it when you bought it with the 418?
I wonder what the forensics will show you. Installed fastener type, stripped holes or what
glad no one was hurt as that is ugly.
Sorry to hear of your bad luck. Was that clutch in it when you bought it with the 418?
I wonder what the forensics will show you. Installed fastener type, stripped holes or what
Thread Starter
Instructor
Joined: Mar 2009
Posts: 225
Likes: 1
From: Dripping Springs TX
The clutch was in when I bought it. It was inspected when The engine was swapped. All was good with it. It scared everyone but all the shrapnel stayed under the car. I am curious to see what caused the failure.
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Melting Slicks
Joined: Jan 2009
Posts: 2,127
Likes: 33
From: Easley/Anderson South Carolina
lets hope when the bell housing broke it didnt break the mounting points on the block! Very lucky that nothing came out through the tunnel area and stayed under the car.
Thread Starter
Instructor
Joined: Mar 2009
Posts: 225
Likes: 1
From: Dripping Springs TX
That's the one i'm eyeing. I'm hoping the damage is limited to the housing and clutch only. *fingers crossed*
Melting Slicks
Joined: Jul 2005
Posts: 2,586
Likes: 2
From: Bardstown Kentucky
Sheww that would be scary.. My guess is the clutch came apart and blew some holes in the bellhousing. I bet you will be fine on the mounting holes to the block. Also there is a 6 speed bellhousing for sale I believe in parts. Good Luck! 
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
