Any place with pre-made oval to round transitions?

I figure this may need to be a custom fab, and or machined, part but I figured I would ask. Trying to cut down on bench time for a fabricator, and make my life hella easier.

I have taken round junk aluminum and or stainless pipe, thin wall (exhaust) and put it is a vise in the past. Not sure if a thicker wall alloy would take to that, let alone be close to the shape I would need it to be when finished.

Any input is appreciated.

 

Have you checked Ross?

 

Yes, I checked RMR's webiste.
They offer a lot of DIY parts, but no transitions.

I am sure they could bang out a custom CNC job for me if needed.
Just thought I would dig for something more generic at first.

Thanks for the input.

 

If you heat the aluminum with a torch it comes down to oval must faster and easier, just make sure to cool it slowly.

Ian

 

Depending on the size/wall thickness I might have some, otherwise I'm sure I could make them.

Although what I've done for other shops is cut them dies to use in a vise/press. It ends up being cheaper in the long run because they can use their regular tubing instead of having the transitions machined from solid bar stock.

 

what about Burns Stainless?

 

I thought I checked there, but will go double check for sure.

I plan to ride it out and look for a manifold that will bolt up, having a hard time though. If not I will have to go custom, built from scratch and that is when I would need to get into this. The availability, variety, and cost of your average inlet bells/velocity stacks would make the transition worth it.

This is what I am dealing with...


Modified by billyVR6 at 5:09 PM 6/9/2008


Modified by billyVR6 at 12:05 AM 7/28/2008

 

eh just by some round tuning and use a vise to squish the end down then cut the uneven surface off that the head flange is going to be welded to, thats what i did.


mike

 

Yep, that is the last ditch effort process I would do.

I would got with a bit thicker wall, with a heavy bead around the mating surfaces to give me some meat to transition the shape to the flange.

Thanks for all the input, I have some things to look into. Going to ride it out just a little bit more to see if I can get a good manifold bolted to it, if not I will post up the solution. Thanks.

 

I wouldn't use a vice, I'd give a shop press a try. It'll give enough force but also give you some good control over it. Heat it up a good bit with a torch and use the shop press.

 

fsi intake, ftw.

 

yep, but not for long.

 

nice good to see somebody is messing around with that motor, good luck with your project!!!

 

Damn straight, and it is an N/A build as well!

 

 

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Totally.

 

Definitely get a couple of short sections of round stock and try to form it in a press before you spend time/money on a more elaborate solution. You would be surprised how accurately you can do it after a couple of tries.

 

i agree ,,try

 

Will do guys. My efforts doing it this way were without heat, combine that with not being a fabrication guy, I was't to happy with the outcome (IIRC, I think I might have even split part of it). I have some old stock laying around, I will mess with this, even just for the sake of knowing how.

Thanks.


Modified by billyVR6 at 3:27 AM 6/11/2008

 

post pics of your work

 

Site is acting up but hth, http://www.ovaltubing.com/?page=products

 

the trick would be to take a block of 6061, and mill it to an oval shape of the size needed and then cut it in half..
we can bolt fittings to our vices at the shop... makes life easy.

just attach it to the vise, place round pipe in and clamp.
you may have to heat it depending on wall thickness to keep it from creasing or cracking