johnemms
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| posted on 8/6/17 at 08:53 AM |
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DIY Exhaust :) a few locost pics..
Bought a few bits from my local exhaust shop... Locost style..
Decided to try my hand at a repackable exhaust - first attempt  !!
 
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Started with an end cap..
 
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End cap to be welded on and polished..
 
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Mig welded two end plates on perf tube to make a bobbin .. Horrible welding 
 
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In it goes.. Removable..
 
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Left a snug gap for tail plate..
 
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Drilled & welded screws tail plate..
 
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One screw in to help align holes..
 
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Allen bolts - plate to be linished polished..
 
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Swaged pipe for align & fitting to manifold ..
 
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Tail pipe exit - to be linished polished & tail end pipe welded on..
 
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Current exhaust ..
 
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Seems like a good idea for £50 in bits..
Wadding is looking expensive though ..
Comments welcome..
Cheers..
[Edited on 8/6/17 by johnemms]
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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Mark Murphy
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| posted on 8/6/17 at 11:56 AM |
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Looks very good, i like it.
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coyoteboy
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| posted on 8/6/17 at 12:22 PM |
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good effort!
Do they have an online presence? Does anyone know of good online sources of exhaust parts? I'm looking at a couple of options for my car and
want to plan parts- haven't scanned the airwaves for sources in a few years.
[Edited on 8/6/17 by coyoteboy]
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johnemms
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| posted on 8/6/17 at 12:32 PM |
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http://stores.ebay.co.uk/MIJ-EXHAUST
I collected cash - 5" x 24" cylinder - 4 end plates - 1 perf tube - 1 long swaged tube
eBay for my M3 Dome heads and nuts..
Probably ask them to weld and polish it as they are local to me..
[Edited on 8/6/17 by johnemms]
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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craigdiver
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| posted on 8/6/17 at 01:02 PM |
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Great info, had not considered making my own exhaust. I will still need to buy & insert a cat into it though but could save some cash building the
exhaust myself.
If it ain't broken, fix it anyway (just because).
Building - BMW powered Haynes Roadster/442E hybrid.
Volvo C30 T5 Polestar
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johnemms
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| posted on 8/6/17 at 03:07 PM |
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My original was an old robin hood...
 
Side Exhaust
Which blew all the stuffing out and was very loud..
Next was a 5"x24" .. which has started to sound loud..
Next is a work in progress ..
however .. i fancied filling with this stuff..
Trackday Motorsport Exhaust Silencer Packing Wadding Acousta Fill ZT1 1000'C
But.. at £78.96 for 2.35meters x 600mm in that size can... Maybe overkill ...
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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jps
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| posted on 8/6/17 at 03:58 PM |
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quote:
Originally posted by johnemms
Wadding is looking expensive though ..
Comments welcome..
Cheers..
[Edited on 8/6/17 by johnemms]
Don't bother with wadding - but do move house so you live somewhere with lots of tunnels
Seriously though - looks good to be! I know nothing about exhausts and silencers though...!
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johnemms
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| posted on 8/6/17 at 04:25 PM |
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I have my rev limiter set to a hard 5800 rpm ..
I get a nice bang bang bang and flames when bouncing off it ..
That answers where my filler has gone
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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ianhurley20
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| posted on 9/6/17 at 07:12 AM |
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quote:
Originally posted by johnemms
http://stores.ebay.co.uk/MIJ-EXHAUST
I collected cash - 5" x 24" cylinder - 4 end plates - 1 perf tube - 1 long swaged tube
eBay for my M3 Dome heads and nuts..
Probably ask them to weld and polish it as they are local to me..
[Edited on 8/6/17 by johnemms]
I used their parts, in my case a ready made 22" x 6" universal stainless polished silencer, excellent quality and 94db at IVA, mine was
about £50 delivered
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johnemms
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| posted on 9/6/17 at 07:57 AM |
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Yes.. that's what I have at the moment..
You can get end plates off them and mod yours to a repackable..
I was going that route but decided for £50 to start from fresh 
Own chassis & Build - First time pass!!
"7's" aren't really "cars", they are 'experiences"
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Ian2812
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| posted on 9/10/17 at 10:42 PM |
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Very nice job indeed...
I went to a few places to try and get a new silencer to replace mine but struggled to get one longer than 20", Mine is 29" and
didn't really want to reduce in size for noise reasons.
Have had a change of heart and decided to get some custom high temp carbon fiber made and going to give mine a new lease of life... will update my
thread when I've completed it...
Thread
Westfield Megabusa - Modifictions and Upgrades.
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