paulbeyer
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| posted on 28/3/07 at 05:45 AM |
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Home made exhaust
Without having to trawl through everyones picture archives does anyone have any pictures of an exhaust made from s/s dairy bends they could point me
at? Especially a 4 into 1 system. I don't know how to create the 4 pipe collector.
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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Fred W B
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| posted on 28/3/07 at 05:59 AM |
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exhaust
Collector is a piece of 3 inch pipe forced into a sqare shape with rounded edges by pressing 4 bits of steel bar of the approx header dia welded
together into one end, and a fabricated 3 to 2 inch cone on the other by cutting wedges out the pipe, bending closed and welding up.
The welded up 4 bar former obviously has to have the end tapered to fit into the pipe
Don't forget to weld a star plate between the 4 pipes before you put the collecter on
Cheers
Fred W B
[Edited on 28/3/07 by Fred W B]
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Mr Whippy
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| posted on 28/3/07 at 07:12 AM |
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nice job
[Edited on 28/3/07 by Mr Whippy]
Fame is when your old car is plastered all over the internet
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Hellfire
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| posted on 28/3/07 at 08:35 AM |
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Lovely bit of piping....
Steve
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smart51
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| posted on 28/3/07 at 08:45 AM |
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http://www.locostparts.net/index.php?cPath=21&osCsid=814bka9qc9ek9pvu290auml7j4
look at these self assembly exhausts.
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MikeR
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| posted on 28/3/07 at 09:50 AM |
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look up NS Dev and exhaust.
he's made a lovely system and made a 4-1 collector.
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NS Dev
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| posted on 28/3/07 at 10:28 AM |
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exhaust 4
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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paulbeyer
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| posted on 28/3/07 at 11:08 AM |
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quote:
Originally posted by MikeR
look up NS Dev and exhaust.
he's made a lovely system and made a 4-1 collector.
It's hard to tell from that angle but isn't NS Dev's exhaust a 4-2-1? NS, Fred thats amazing work on both parts. Would you be able
to form a collector like yours Fred if it was made from s/s?
Thanks for the info gents.
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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Fred W B
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| posted on 28/3/07 at 11:35 AM |
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Thanks for the kind words guys.
The "classic" way to do a 4 branch collector is as NS dev has done, but with 4 bends cut and tigged together.
Mine is not as neat, but it gets the job done and means buying 4 less bends.
As for fabricating in stainless, steel is steel, in fact ss may form better as it is more ductile than carbon steel - which my pipes are.
If you don't have a 3" pipe and a suitable press and former, you would have to fabricate from sheet.
email me if you would like some more detail on how I made the manifolds
Cheers
Fred W B
[Edited on 28/3/07 by Fred W B]
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ayoungman
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| posted on 28/3/07 at 12:18 PM |
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weve certainly got some talented fellas on this site haven't we.?
Switch to green with envy mode !
"just like that !"
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NS Dev
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| posted on 28/3/07 at 12:22 PM |
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quote:
Originally posted by paulbeyer
quote:
Originally posted by MikeR
look up NS Dev and exhaust.
he's made a lovely system and made a 4-1 collector.
It's hard to tell from that angle but isn't NS Dev's exhaust a 4-2-1? NS, Fred thats amazing work on both parts. Would you be able
to form a collector like yours Fred if it was made from s/s?
Thanks for the info gents.
yeah, 4-2-1 but it shows the collectors, made as fred suggested, and the same works for 4-1, you just make two slash cuts in the collector bends, at
90 degrees to each other, and weld them all together.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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liam.mccaffrey
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| posted on 28/3/07 at 02:45 PM |
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http://www.locostbuilders.co.uk/viewthread.php?tid=41221
link to thread where i asked questions about collector fabbing
Build Blog
Build Photo Album
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TangoMan
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| posted on 28/3/07 at 03:00 PM |
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I haven't got any pictures but I made my collector by shaving down four lengths of pipe (same as primaries) progressively from one end to the
other and them welded them together to form a funnel. I works OK but was a bit time consuming.
If that doesn't make sense, One end was around 270degrees left on the pipe while the narrow end, sized to fit the main pipe, was around 100
degrees of pipe.
I would draw a picture but I ned to get back to work.
Steve
Summer's here!!!!
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paulbeyer
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| posted on 28/3/07 at 03:26 PM |
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Excellent info and pictures, thanks. What do you recommend for cutting the pipe work accurately? I can imagine that it would be easy to screw up a
join if you dont get the cuts sorted out properly. I was thinking angle grinder with a thin cutting disk but I can see that wandering too much.
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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Simon
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| posted on 28/3/07 at 07:10 PM |
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ATB
Simon
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JoelP
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| posted on 28/3/07 at 07:48 PM |
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a 0.8mm disc in a grinder can be remarkably accurate. I use one at work to cut extractor chinmeys to length. Its quite easy.
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MikeRJ
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| posted on 29/3/07 at 07:25 AM |
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I found an air powered hacksaw to be excellent for cutting thin wall tube such as exhausts. The stroke is very small so it doesn't tend to snag
on the edges of the material as a hand hacksaw would.
e.g. one like this.
[Edited on 29/3/07 by MikeRJ]
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NS Dev
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| posted on 29/3/07 at 03:00 PM |
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I would say it would be impossible to have made my manifold without a belt linisher.
They are cheap enough now, the ones with a 4" wide belt and a disc sander on the side. You can square the ends with the table on the disc sander
and debur and profile using the belt, plus re-angle ends until you have no gap before welding.
To give you some idea of how good the fits need to be......I used about 3" of filler rod on that manifold, all the rest was done without filler
(Autogenous welding I think its called), apart from the head flange to pipe welds.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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paulbeyer
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| posted on 29/3/07 at 07:53 PM |
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quote:
Originally posted by NS Dev
I would say it would be impossible to have made my manifold without a belt linisher.
They are cheap enough now, the ones with a 4" wide belt and a disc sander on the side. You can square the ends with the table on the disc sander
and debur and profile using the belt, plus re-angle ends until you have no gap before welding.
Hi Mate do you mean this sort of thing?
Ebay
linky
If so any recommendations as I was about to buy a standard bench grinder anyway.
Just noticed that was a 2" width belt. Probably to0 small.
[Edited on 29/3/2007 by paulbeyer]
[Edited on 29/3/2007 by paulbeyer]
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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timf
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| posted on 30/3/07 at 08:00 AM |
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this one i think
A prisoner of war is a man who tries to kill you and fails, and then asks you not to kill him."
- Sir Winston S. Churchill, 1952
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paulbeyer
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| posted on 30/3/07 at 10:50 AM |
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Mmmmm, looks nice (read expensive). Do you know make and model?
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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PeterW
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| posted on 30/3/07 at 11:00 AM |
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Looks like an Axminster one
Here
Cheers
Pete
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paulbeyer
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| posted on 30/3/07 at 11:04 AM |
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Cheers for the quick response Pete. Tis deffo an axminster. Price is not too shabby either. Are Axminster tools any good? Must admit I've never
heard of them before.
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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MikeRJ
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| posted on 30/3/07 at 11:30 AM |
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quote:
Originally posted by paulbeyer
Cheers for the quick response Pete. Tis deffo an axminster. Price is not too shabby either. Are Axminster tools any good? Must admit I've never
heard of them before.
Quite a well known company IMO, they have a good reputation for customer service. The lower priced lathes and mills they sell tend to be the better
quality chinese products, I suspect that probably applies to the unbranded power tools as well.
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