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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
Todays job - Straight through exhaust - Td5
So since I've had the 110 Td5 I've had the Alive stage 2 map with de-cat and centre box removal. I was only running the small rear silencer in the system and it sounded pretty good. Not too noisy at all except when flooring it.

I've been running a straight through 3" bore on my 200tdi 110 for a few years now and it's certainly not loud and sounds pretty mean. So today I thought I would give it a go and remove the rear section from my td5 all together.

Now I'm not a pro welder by any means so please don't start commenting on my welds Laughing


I've welded in a piece of stainless pipe as that's what I happened to ahve left in my metal scrap pile. I've also give it a quick coat of paint on the welds to hold off the rust.

The result -


Click image to enlarge


Click image to enlarge


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Click image to enlarge


I've taken it around the block and it seems ok. It's certainly a bit louder that my 200tdi but not obscene by any standards like a boy racer. It gives a meaningful growl under heavy acceleration and it fairly tame when cruising. I'm sure it's not to everyone taste. I'll run it for a bit like this and if I change my mind then I can always weld the silencer back on lol

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
Post #529748 7th May 2016 2:50pm
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chinnus



Member Since: 24 Aug 2012
Location: UK
Posts: 119

2001 Defender 90 Td5 ST Coniston Green
be careful the turbo has enough back pressure to fire up!
Post #530380 10th May 2016 2:02pm
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Fatboy Slim



Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006

Wales 
The turbine in the turbo creates all the back pressure the engine will ever need. You just want to get rid of the gas once it's out of the turbo for performance and efficiency Thumbs Up

Got a straight through on my 110 it sounds luuuush Thumbs Up
Post #530382 10th May 2016 2:10pm
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
Does anyone sell the rear section without the box? Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #530387 10th May 2016 2:52pm
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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
Nobody sells one that I'm aware of
Post #530389 10th May 2016 3:04pm
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1978



Member Since: 04 Aug 2015
Location: Lancashire
Posts: 519

United Kingdom 2003 Defender 90 Td5 HT Belize Green
I did the decat and middle box delete on mine a couple of weekends back, it has made a massive improvement to the vehicle and I'm really pleased I did it. It does sound superb, but its pretty loud..... does the backbox delete not make it TOO loud?
Post #530390 10th May 2016 3:15pm
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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
It does make it a bit louder 😀
Post #530391 10th May 2016 3:20pm
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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
I unbolted the rear section and took it for a drive to gauge how loud it would be before I committed to cutting and welding.
Post #530392 10th May 2016 3:22pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
I have a welder. And a td5. I may have to remove my middle box! Also a '99 so no cats in the way either!
Post #530405 10th May 2016 5:09pm
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Super7



Member Since: 05 Feb 2014
Location: South Bucks.
Posts: 132

United Kingdom 1999 Defender 90 Td5 CSW Rutland Red
I've been thinking of removing my middle box as its so big every time I go off roading it grounds out Rolling Eyes

The rear box also looks a bit vulnerable but I've not clouted it yet. '99 TD5 Defender 90
'52 Series 1 80"
'99 Caterham 7
Post #530406 10th May 2016 5:19pm
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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
You can buy off the shelf straight through centre boxes. It certainly sounds good with just the rear box only. The rear box takes it to the next level of growl.
Post #530408 10th May 2016 5:35pm
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marsie



Member Since: 17 Nov 2011
Location: sheffieldish
Posts: 532

England 2010 Defender 110 Puma 2.4 XS CSW Galway Green
Done the same with my 110, not much louder without the rear bean can but a bit more pronounced turbo whistle Thumbs Up 2000 90 TD5,galv chassis, d2 axles ,Bas remap , alisport intercooler , d2 transfer box , side windows-more to come-much more!! *GONE*
2004 110 TD5 Double cab. *GONE*
2010 110 2.4 XS station wagon
Post #532166 16th May 2016 8:38pm
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chinnus



Member Since: 24 Aug 2012
Location: UK
Posts: 119

2001 Defender 90 Td5 ST Coniston Green
can you post a video of the growl lucifus?

Tom
Post #532400 17th May 2016 4:05pm
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Lucifus



Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

United Kingdom 
It's been a few weeks and I've driven it a few hundred miles. I've come to the conclusion that it's a lot louder on the outside than I thought. Had a few friends follow me with their windows open and they commented that it sounded loud when booting it but awesome! Under mild acceleration and cursing it's fine. Under full throttle full boost it's a beast.

Sorry although I have a go pro I don't have a mount to attach to the outside of the car.
Post #538311 7th Jun 2016 8:20pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2847

United Kingdom 
I have not had such good results with my 110 TD5.

I removed the CAT and fitted a straight through pipe, it did seem a bit better as in not actually any faster but the turbo spooled up quicker.

However when on the motorway there was a fairly loud resonance/drone at 65-70 mph which was tiring after a while, so l ended up refitting the CAT.

The rest of the exhaust is standard and 11 years old, so l wonder if my silencers are OK? As nobody else has complained of this issue after CAT removal.
Post #541093 17th Jun 2016 5:31pm
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