I've been looking around for some 4" stainless tubing to do my downpipe and everywhere I've seen, whether it be donuts or 90's all use 16ga material. I'm looking to do at most 18ga, maybe even thinner to keep the weight down. The bend's would need to have a 6" clr, maybe even 4" clr as I've seen that's what the donuts have. (Also saw a supplier that was able to have 90* bends with a 4" center line radius too)

Does anyone know of good suppliers who may carry this?

 

I dont know of any SS tubing in 4" with a thinner wall than .065" wich is 16gage...
might be able to find some thing lighter in a ducting pipe, but any laminar type of fittings... eh I dont know ?

 

http://stores.ebay.com/KLG-Sta...QtZkm

4" Stainless Steel (304) 45 Elbow (B2WK)

 

Not bad prices, but they're either the same as 16ga (.065") or thicker like that 45* bend was (.083"). I need thinner

 

Did you try PMing mbpwrx? He works for Ace Stainless and if he doesn't have it, he can probably let you know who does.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daveG &raquo;</TD></TR><TR><TD CLASS="quote">Did you try PMing mbpwrx? He works for Ace Stainless and if he doesn't have it, he can probably let you know who does. </TD></TR></TABLE>

Thanks for the referral Dave but we won't be able to help on the thinner wall bends. In the future when we get our bender thin wall bends will definitely be in stock.

 

By "thin" do you mean less than .065"? That would be great to have access to 18-20ga tubing in big diameters. Could pretty much drop the weight of a 4" exhaust system in half! When do you guys plan to get a bender?

 

The problem why no one has it may be, it's impossible to do... mandrel bending thins out the outside wall while bending, and maybe at those sizes a u bend will just rip the outside if done in 18g?

The difference is no much in weigth really.... plus evertyhing will be a little bit stronger in 16g

 

Call burns stainless they might be able to help...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">By "thin" do you mean less than .065"? That would be great to have access to 18-20ga tubing in big diameters. Could pretty much drop the weight of a 4" exhaust system in half! When do you guys plan to get a bender?</TD></TR></TABLE>

18ga and thinner is not a problem when it comes to straight lengths of tubing...it's the bends we don't have access to.

We are thinking about mid-late 07 when it comes to buying a bender.

 

It's far from impossible. We do SS-321 in .035 for aircraft on 1*D radiuses. It's all about having the right machinery, with the best tooling, and highly trained operators.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by danielm3 &raquo;</TD></TR><TR><TD CLASS="quote">The problem why no one has it may be, it's impossible to do... mandrel bending thins out the outside wall while bending, and maybe at those sizes a u bend will just rip the outside if done in 18g?

The difference is no much in weigth really.... plus evertyhing will be a little bit stronger in 16g</TD></TR></TABLE>

 

I think I'm just going to end up using 16ga and deal with the extra weight. The downpipe I'm hoping to have done by next week so I'm in a bit of a rush. The rest of the car isn't going anywhere fast, but the more I do now, the less I have to do this winter. I'm afraid I can't wait till mid/late '07 but that's good to hear it will be available by then.

 

The problem you run into is finding straight material to bend.

The thinnest largest bend we do is .035 X 3" OD 321ss on a 4" CLR 90 deg bend