Callaway (motor) explodes dyno??

[corvettecrazy]

I heard it from another person on another forum but here is what he wrote:
"Today my Father and I took our annual pilgrimage to the Bloomington Gold Corvette show up in St. Charles (Chicago). It's something we've done together for probably 10 years, awesome times.

Anyway, we were walking around and came up to the Breathless Performance booth where they had a protable Mustang Dynometer there. 3 pulls for $75, cool! As we're walking up they're straping down a C4. Not just any C4, a twin turbo Callaway C4.

We watch the guy make his first pull, and he is just all over this car. I mean he's shifting it hard enough to make it lurch on the rollers, which was totally un-needed. You're going to get the same numbers whether you shift like granny on slam the hell out of the gears. But never the less all is cool and the numbers come up. I think he made somewhere in the 370rwhp range (Mustang dynos typically read a lot lower than a dynojet).

He starts the second pull, winding through the gears, 1st... 2nd...3rd... and about 2000 rpm in fourth gear he goes wide open throttle. From where I was standing I could see the computer screen... 3000rpm.... turbos whistling loud as hell.... 4000rpm.... right at about 5250rpm BOOM!!!

Anti-freeze all over the place. Smoke everywhere. The people there were muttering about how they thought he blew the intercooler. The guy gets out of the car and he looks all sorts of angry. My Dad and I walked off and looked around in the swap meet for a bit. When we went back by 20 minutes later the car was still sitting there.

The owner gave me this look he was going to kill me so these are the only two pictures I took.

This was taken about 30 seconds after it blew. You can see the coolant in the lower left hand corner...

Looks sort of like the car took a ****, doesn't it?

"

can anyone fill me in more on what happened to this beauty???

 

[callaway4fun]

There was no damage done to this Callaway .The Radiator hose clamp failed it was replace and all is well . The intercooler hose clamp was loose and he was loosing boost. A quick look over the car and all is perfect with it now. It was just bad luck that this happens. I was driving on the highway once and my intercooler let loose . It is something that happens and is no big deal.

I heard it from another person on another forum but here is what he wrote:
"Today my Father and I took our annual pilgrimage to the Bloomington Gold Corvette show up in St. Charles (Chicago). It's something we've done together for probably 10 years, awesome times.

Anyway, we were walking around and came up to the Breathless Performance booth where they had a protable Mustang Dynometer there. 3 pulls for $75, cool! As we're walking up they're straping down a C4. Not just any C4, a twin turbo Callaway C4.

We watch the guy make his first pull, and he is just all over this car. I mean he's shifting it hard enough to make it lurch on the rollers, which was totally un-needed. You're going to get the same numbers whether you shift like granny on slam the hell out of the gears. But never the less all is cool and the numbers come up. I think he made somewhere in the 370rwhp range (Mustang dynos typically read a lot lower than a dynojet).

He starts the second pull, winding through the gears, 1st... 2nd...3rd... and about 2000 rpm in fourth gear he goes wide open throttle. From where I was standing I could see the computer screen... 3000rpm.... turbos whistling loud as hell.... 4000rpm.... right at about 5250rpm BOOM!!!

Anti-freeze all over the place. Smoke everywhere. The people there were muttering about how they thought he blew the intercooler. The guy gets out of the car and he looks all sorts of angry. My Dad and I walked off and looked around in the swap meet for a bit. When we went back by 20 minutes later the car was still sitting there.

The owner gave me this look he was going to kill me so these are the only two pictures I took.

This was taken about 30 seconds after it blew. You can see the coolant in the lower left hand corner...

Looks sort of like the car took a ****, doesn't it?

"

can anyone fill me in more on what happened to this beauty???

 

[corvettecrazy]

thanks for the reply. I was not there so I only heard about it. I will fill in those on the forum that the above was posted, just so they don't/can't slander Callaways work. I know this stuff happens. Bad timing.

 

[EricVonHa]

Truly, it took less than 2 minutes to fix the car and he had it all cleaned up a half hour later. It was the factory spring loaded upper radiator hose that let go causing the seemingly huge problem. Minor deal though. Steve's got another 50+hp hiding in that car once he gets the timing and boost levels squared away.

 

[SurfnSun]

Yes please send the original poster this way...the last thing we need is some crazy rumors about a car going around.

 

[*89x2*]

There was no damage done to this Callaway .The Radiator hose clamp failed it was replace and all is well . The intercooler hose clamp was loose and he was loosing boost. A quick look over the car and all is perfect with it now. It was just bad luck that this happens. I was driving on the highway once and my intercooler let loose . It is something that happens and is no big deal.

Pete, You are absolutely right on the money here! In the Callaway CLass, one of the maintenance topics included the condition of the hoses & the clamps thatretain them. Steve, who owns the blue B2K, said the clamp that failed, was the ONLY GM clamp left on the car and should have been changed out long ago by one of the previous owners.

I am sure it was quite the event to see the hot coolant spewing out with all of the effects that go with it - glad it was not more than that

 

[90Callaway]

Those clamps that let go were installed by Steve, the car owner, not Callaway. He recently purchased the car and had the turbos off for some work. The clamp on the intercooler pipe is very hard to get to and was apparently a little loose. It happens. He hasn't really driven the car much and that dyno run was probably the first full boost run. Think of it as "debugging". It's a beautiful car and he's a nice guy. I spoke to him extensively about the work he's done on the car and the dyno pulls. For the record he did the pulls exactly as instructed by the dyno operator.