They have "plastic" pressure vessels now that hold 2500-5000 psi! Its making competition tough on us steel guys...

I would rule it as a fluke like Hohn stated...

 

This was posted as a warning. Our tech was lucky. What do I have to gain? Like another post said we arent promoting ours here. Sure I could have turned it into a beating, but it was a warning. Dyno with the hood down.

 

I agree with you Pat on the safety measures. Other things could always be compromised on a dyno, leaving the hood down would be best.

 

I'll give you that Pat-- you didn't try to push anything on anyone... it was just a heads up that morphed into all this other stuff.

 

Wow and there was only one gunman that shot Kennedy. This is no great conspiracy theory. You can phone and talk to the tech if you want. It blew, hit the hood and the roof of our shop. It wasnt 100psi. There was water meth on the truck, but it had been used the run before as well as that run. There was NO NOS on this truck, so therefore no NOS explosion. Again this was a warning to dyno with the hood down. I might be taking this a little to personally, but that is what happened.

 

Sheesh, why can't we just accept Pat's kind warning as what it is? They dyno'd the truck, the intake blew, and that's dangerous.

Bashing vendors is a sure way to make them go away, and I personally LOVE the kind of access we get to vendors on this site.

Thanks for hanging around, Pat-- I appreciate you taking time to share the warning with all of us.

Justin

 

Ok here goes.

1999 Ford with Cummins 5.9 12v Swap
Plus 1 Celcius. Dyno Mustang 1500
15deg timing. Water Meth injection. dont know the PSI hobbs switch was at
stock ford Intercooler.
First dyno run 410hp
Second Dyno run 385hp and boom.

Water meth had come on and we were only half way through the pull when it blew. The reason for the photo looking like it did is we put it where we take photos of our products with good lighting and on white paper. If you like I can take a picture of it with my camera phone so it looks more amateur.

 

Your welcome. I seem to be a sucker for a good beating.

 

Is there even a remote possibility that some type of malfunction with the water meth system could have caused the explosion?

 

There is always a small chance, but normally with water meth you dont see the spike in cylinder pressure like you would with NOS. I have tuned race cars for a few years and have definately seen NOS explosions. From what I heard this wasnt like one of those.

 

my cfm+ is holding up well so far although it has only seen 35psi. i will be purchasing the bd once i start running over 40psi because i too believe the cfm was designed for stock boost pressures.

ofcourse i will first have to see how the bd performes on the dyno

 

Hello,

Kantdrive55 could you please post close up picts of the fracture surface. Resin/plastics/composites are very hard to diagnose the failure mode, but it could not hurt to take a closer look.

Damon

 

FWIW - I don't think a plastic intake is any more susceptible to work hardening or harmonic stresses than a metal one... they just have to be adequately designed for the admittedly severe CTD environment.

However, I wonder if the failure mode could have been catalyzed by improper fastener torque - it's the sort of thing that composites can be more sensitive to. ???

 

The customer has taken it back to try and get warranty on it. I dont have it here any more.

 

I was thinking that same thing. A composite can crack from over-torque while a metal unit would likely just shrug it off.

It's because composites have little to no ductility--- which can enhance survivability in the harsh CTD environment.

Coming soon-- the Hohn Special Cast Copper Intake Horn