Possibly looking to build a TYPE 4 vintage speed copy type exhaust in stainless as the bought ones are out of my price range . I did ages ago build a stainless steel one for my beetle but that got sold . Has anyone built there own ? I know its not simple with regards to back pressures and baffles .... any info ?
I know a man who does! These guys are next door to us at work http://racefituk.com/ they do some beautiful stuff and in the back of their workshop have a very early Porsche Motor they are doing some development work on
MorkC68 ..... what grade of stainless to those guys make the bike exhausts from ? love the heat blueing ... I know Paul has made his own but i`ve `fingered `the poor guy for so much info already ..... Its not the making its the back pressure and baffles that i know nothing of , unless anyone want to cut their VS exhaust in half
I think some are made from 316L & they also make ones from Ti6Al-4v as we use the same supplier. Its *******ing it down with rain here, I'll nip across on Monday & ask them!
must be titanium ..... never welded it and over kill on my bus altho i have some titanium rod i was going to make my carb linkage out of
I've made a few 4-2-1 systems, so the silencing is left to a regular off the shelf muffler... I normally use a magnaflow silencer The VS stuff is pretty basic inside, a couple of baffle plates, and then a silencer insert in the actual tailpipe!!
You can see where the baffle plates are spot welded into the exhaust. One -ve for the VS exhausts is the mating flanges, the VS ones are too soft/small and easy to bend. I've heard they have a habit of loosening their nuts after a few days of fitting and I wouldn't be surprised if this is because of the give in the flange plates.
I'm going to get in touch with these guys in Macclesfield for a different application...might be worth an ask if you're local
Of what? I can give it a good measure up next week and what's more I can be trusted to measure things properly.
This is some cheap software that does all the calculations for you. http://www.maxracesoftware.com/PIPE395.htm
silencer or exhaust ? i made a silencer many many moons back , it was a bit noisy but that was good them days , length and baffle are the critical bit ,ie for power and noise.
They are excellent, my father in law uses them for his vintage cars and Subaru, he's an ex engineer and perfectionist so it's all the recommendation I'd need.
