Took my POS out for a little flogging tonight. Held her at about 40 PSI (pyro wouldn't break 1100* ) and the main charge pipe from the large turbo into the smaller one popped off at the small turbo inlet. I layed a TIG bead on all the ends of the pipe, kind of like a poor man's bead roller, and they have been fine. What else can I do to keep this on? I have all high quality silicone hoses with the T bolt clamps. If it won't stay on at 40 PSI, then it won't stay on when I floor it with water/meth and with the KSB on (I'm guessing 50 PSI or so). I've heard that installing it with hairspray helps, but will it fix the problem?

 

did it pop off after you put the bear on with the tig?

 

No. The part that popped off was the intake into the top turbo (where the air filter tube goes on a stock truck). There is no bead there or anything, just flat surface. Sorry if I wasn't clear in my first post. Where ever I have layed a bead or that has a bead rolled surface hasn't popped off. I really don't want to try and weld anything on that junky, cast aluminum compressor housing.

 

not sure, it's pretty deep any way you can get a second t-bolt on there? i'd definately try the hairspray though.

 

Thats a good idea, another T bolt. I'll see what others have to say.

 

if that doesn't work just throw some gorilla glue on there, that should hold, lol.

 

This may not help much on a rougher casting, but on shiny pipes hitting it with some coarse sand paper to rough it up always helps, and the hairspray trick does indeed work.

I had some couplers on my 95 Eclipse that kept slipping at anything over 30 psi. In this case it was typical aluminumized exhaust piping reducer cones. Just the sandpaper alone was enough to keep them on at 40 psi. Clamping force (from tbolt clamps for example) will only do so much, you need to help create the friction that ultimately prevents the sliding action.

 

Dang, I've not had any trouble with that one coming off. The connection at the intercooler discharge has been my problem child. I'm running 60 psi +.

 

One thing you could do is weld on a small tab or tang onto the pipe and bolt that tab onto the manifold or something else like another tab on the connecting pipe. I hope that is clear

Dean

 

We've had to hairspray most of ours.. and they seem to be holding some good pressures...

 

Is your truck the black one featured on Piers' site?

 

I'd try a constant tension clamp instead of the t-bolt clamp. Mine have been holding 60+psi.

 

If you think that a bead would help, could you create one out of JB weld on that aluminum housing rather than welding on it?

 

If you have a friend that has a large enough engine lathe, he could cut some grooves in the housing where the hose clamps, like that on a hose barb. The grooves wouldn't need to be deep, just sharp like an armory or buttress thread.