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Nic
21-07-2008, 09:36 PM
This is something I haven't seen before....

http://www.thesamba.com/vw/forum/viewtopic.php?t=308584

letterman7
22-07-2008, 02:25 AM
Cool, eh? Like the thread suggests, they're custom. You can build anything with enough time. Even from scrap pieces I manages to fiddle together a custom exhaust for my buggy - off the banks heading forward, then curving back into some Harley straight pipes and out on an angle in front of the rear wheel. The only thing I had to have fabricated was the tight bend that I couldn't do by hand and a torch. Once everything is painted and in place I'll post a photo. Somewhere, I think it's on Dave's SSC site, there's a Sterling with sidepipes. Very cool touch!

islandman
22-07-2008, 10:40 AM
I decided to go the custom build route. It's easier if you start with a selection of bends that can be purchased from most custom exhaust places in advance.
http://i187.photobucket.com/albums/x91/euronova/islandman/20_the_start_of_the_new_exhaust.jpg
Then its just a case of weld a bit, cut a bit, weld some more, test it, re-cut and reweld......and hey presto - a full blown custom exhaust!
http://i187.photobucket.com/albums/x91/euronova/islandman/21_the_finished_exhaust.jpg

letterman7
22-07-2008, 01:00 PM
Yep...and it looks great, David! The big advantage with David's setup, especially for a VW engine, is the collector. Dual cannon style exhausts will rob the motor of horsepower...collectors will help gain!

jimcub
22-07-2008, 01:31 PM
Here is a picture of my CSP exhaust.
It has a ceramic header with stainless boxes and pipes.

http://i187.photobucket.com/albums/x91/euronova/UKK469H/underexhaustview.jpg

The black line where the pipes splits is not a crack but where something has dripped and melted to the pipe.
Will be able to modify to exit where the panels are in the Mk4 rear box.

Kym
22-07-2008, 03:17 PM
http://i187.photobucket.com/albums/x91/euronova/Kyms/Hole.jpg

Disregard the text as this was another post about cutting a hole in the bell housing to change the throwout retainer clips. focus on the stainless steel bits from eBay. Yes its a Subaru but the same thing could be done for any engine.

Kym

Nic
22-07-2008, 04:11 PM
The exhaust pipes coming off the back of the engine are just a few inches and the front has J tubes, which are much longer. I have heard its always a good idea to have equal lengths from the manifold to equalize pressure for all cylinders involved. Is that true? What adverse affects do unequal length exhaust pipes have, if any?

EDIT: Also... Rick, you mentioned the collector on David's car helping to void the power robbing dual setup. Would having some sort of cross over pipe connecting the 2 exhausts help as well? Maybe something across the back, under or over the tranny connecting the 2 sides.

letterman7
22-07-2008, 06:10 PM
I had considered the crossover pipe, Nic. I just haven't had the chance to fit something in. Once something like that is welded in place, then if something needs servicing I have to un-do both sides of the engine. Most headers that I've seen have un-equal length pipes. I think it only matters if it's a matter of feet, not inches, in total header length. Someone correct me if I'm wrong, but I believe the theory behind VW headers isn't necessarily to equalize the pressure between cylinders, but to aid in scavaging the exhaust gases from one cylinder to the next.