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Oct 11, 2023 13:30:31 GMT
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Has anyone successfully managed to make their own exhaust?
I need a new one on the Starlet, standard ones aren’t available any more & wouldn’t work anyway.
It’s a basic system from 4 branch to back box, but with a tight(ish) axle bend.
Thinking either using Jetex parts & cutting/bending/welding, or using something like a mk2 escort system as they’re readily available & have an axle bend as standard?
Don’t really want to go under the axle as ground clearance isnt great
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Oct 11, 2023 19:09:27 GMT
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No need to use Jetex parts, buy cheap bends on ebay and weld them together.
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1988 Mercedes w124 superturbo diesel 508hp
1996 Mercedes s124 e300 diesel wagon
1990 BMW E30 V8 M60 powered!
1999 BMW E46 323ci project car
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Oct 11, 2023 22:17:42 GMT
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Yeah I've made quite a complicated one. Have a look on the Jag thread linked in my sig. Just bought a bunch of mandrel bends and tubes, cut it up and stuck it together with the very-hot-glue-gun.
One thing I did right was fully welding it as I went along which meant any warping was accounted for already. One thing I didn't do so well was welding stainless with a MIG which I think caused the chromium to migrate away from the metal around the welds making it stop being stainless anymore...
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Oct 11, 2023 22:29:15 GMT
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i never thought about welding them as you go! DOH! thats a good tip.
stainless, i think unless its the highly polished stuff , just mig it and itll be ok, its not "that much" different to mild steal. If you hjave to cut it though it is. Using a grinder is ok, but like a makita chop saw itll melt and stick on the blade. My rally car has an exhaust made from Isuzu n75 bits we cut off at work, i found out the hard way.
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Last Edit: Oct 11, 2023 22:30:48 GMT by bmw2101
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Proton Jumbuck-deceased :-(
2005 Kia Sorento the parts hauling heap
V8 Humber Hawk
1948 Standard12 pickup SOLD
1953 Pop build (wifey's BIVA build).
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Oct 13, 2023 16:27:50 GMT
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I was going to go mild steel tbh, as my welding skillz are lacking at best & it's going to see very few miles, so should last a few years at least.
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tofufi
South West
Posts: 1,452
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Oct 17, 2023 10:18:31 GMT
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Yeah I've made quite a complicated one. Have a look on the Jag thread linked in my sig. Just bought a bunch of mandrel bends and tubes, cut it up and stuck it together with the very-hot-glue-gun. I've done this on a few of my cars (Volvo 740 diesel, Volvo 340 turbo), and pretty pleased with the outcome. I too just bought a bunch of tubing, bends and silencers and welded them together. I've got an old MIG set up for stainless, using stainless wire and argon gas, and it's OK - won't win any awards but it doesn't fall apart and seems as corrosion resistant as the rest of the (probably low grade) stainless...  If anything, a car used infrequently will benefit more from stainless exhaust... |
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Oct 19, 2023 17:39:46 GMT
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I built/adapted about half an exhaust - what made it much easier was asking the seller (on eBay: every exhaust part limited) very nicely to stretch one end of each section I bought from them. The result was each section slipped over the next meaning cuts didn’t have to be mm perfect and welding was a series of lap joints not butt welds which are easier. Cheers  |
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I priced up a DIY system from MIJ in Birmingham (they sell parts on ebay)
I called to ask about collection and they offered to built it for approx £75 more than the parts cost
I called mid week so they were quiet, needless to say I let them !
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