Fabricating your own exhaust?
07-01-2010, 12:39 PM
#62
Junior Member
Join Date: Jul 2008
Posts: 113
Total Cats: 1
What's a pulsejet? I don't have google.
I have filled in huge gaps in stainless with my Tig, I've also "sculpted" **** with it, just using filler wire to build up material where I needed it (making stops for the handle on my lawnmower so it wouldn't be so sloppy, etc). Not ideal for strength but easy to do with the control you have with a tig. But if you need the joint to be strong, like in a manifold, then there should be no gap.
I have filled in huge gaps in stainless with my Tig, I've also "sculpted" **** with it, just using filler wire to build up material where I needed it (making stops for the handle on my lawnmower so it wouldn't be so sloppy, etc). Not ideal for strength but easy to do with the control you have with a tig. But if you need the joint to be strong, like in a manifold, then there should be no gap.
That makes me a lot more confident in being able to do a "turbo-back" exhaust, now i just need to get some of that 220VAC **** up in my garage, i dun seent it in the laundry room and me a/c unit
Reply
0
0
07-01-2010, 12:43 PM
#63
Elite Member
iTrader: (9)
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,893
Total Cats: 399
http://www.youtube.com/watch?v=lwSpGkHRc84 it makes about 20lbs of thrust, works off of the expansion/contraction or heating/cooling of combustion.
That makes me a lot more confident in being able to do a "turbo-back" exhaust, now i just need to get some of that 220VAC **** up in my garage, i dun seent it in the laundry room and me a/c unit
That makes me a lot more confident in being able to do a "turbo-back" exhaust, now i just need to get some of that 220VAC **** up in my garage, i dun seent it in the laundry room and me a/c unit
EDIT: That's seriously one of the cooler things I've seen in a while.
Reply
0
0
07-01-2010, 09:34 PM
#64
Junior Member
Join Date: Apr 2008
Posts: 349
Total Cats: -2
In my first engineering job, we were working on pulse detonation engines. Basic theory was by making it an actual detonation, there would be greater kick and thrust yield/mass of fuel. Way louder. Not sure if anyone has a viable propulsion system yet, though.
Reply
0
0
07-05-2010, 11:49 PM
#65
Newb
Join Date: Jul 2010
Posts: 1
Total Cats: 0
I went into my exhaust makers today to try and get a price and it was a waste of time!
They wouldnt give me a price unless I took the car to them which I couldnt do!
So I asked for a price for them to sell me the pipes so I can get it done myself and they wanted £58 + VAT for 2M of 3" stainless. The same pipe is £38 off the internet. So I walked out in discrase!
They wouldnt give me a price unless I took the car to them which I couldnt do!
So I asked for a price for them to sell me the pipes so I can get it done myself and they wanted £58 + VAT for 2M of 3" stainless. The same pipe is £38 off the internet. So I walked out in discrase!
Last edited by gordonjj; 07-14-2010 at 07:01 PM.
Reply
0
0
07-06-2010, 11:34 AM
#66
Junior Member
Thread Starter
Join Date: May 2010
Location: Darlington, UK
Posts: 280
Total Cats: 0
So I could have got the 2 x 1M length and 2 x 90 degree bends delivered for £70. Thats a fraction above what they wanted fo just the 2M length.
http://exhaustpartsuk.com/index.php?...cPath=102_1366
Look for your self!
Reply
0
0
07-06-2010, 03:53 PM
#68
Here is a link to my self fabricated exhaust thread: https://www.miataturbo.net/diy-turbo-discussion-14/my-attempt-diy-exhaust-8192/
Mine is neither as good nor as pretty as Y8S but it has worked fine for years. I wouldn't even classify some of the connections as welds...more like two pieces of pipe stuck together with some weld wire. I had very little mig experience before I fabbed mine. My resonator is stainless and I mig'd aluminized piping straight to it and those welds actually turned out the best. In my experience migging stainless has been easy.
Mine is neither as good nor as pretty as Y8S but it has worked fine for years. I wouldn't even classify some of the connections as welds...more like two pieces of pipe stuck together with some weld wire. I had very little mig experience before I fabbed mine. My resonator is stainless and I mig'd aluminized piping straight to it and those welds actually turned out the best. In my experience migging stainless has been easy.
Reply
0
0
07-06-2010, 11:32 PM
#72
I wasn't saying your welds looked good, I just meant the exhaust as a whole looked better than my cobbled together mess. Now that I've gone back and actually looked at your welds I regret ever using the word pretty and your exhaust in the same breath. Please forgive me.
Reply
0
0
07-07-2010, 11:44 AM
#73
Junior Member
Thread Starter
Join Date: May 2010
Location: Darlington, UK
Posts: 280
Total Cats: 0
Looks like you have done a nice job with your exhaust!
The only thing stopping me progressing now is trying to get a downpipe cheap enough which is good!
I would like a 3" all the way through if they exsist. Then once I have that I can start to fabricate the pipe work to that. Without it would be just guess work.
The only thing stopping me progressing now is trying to get a downpipe cheap enough which is good!
I would like a 3" all the way through if they exsist. Then once I have that I can start to fabricate the pipe work to that. Without it would be just guess work.
Reply
0
0
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
