It is apparently 'easy'  to push 228hp out of a 170hp diesel VW

"4muddyfeet - bare knuckle with an EZ30" (4muddyfeet) 05/07/2016 at 15:59 • Filed to: Skoda

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So I’ve been wanting to gut the DPF on the Skoda Octavia for a while now, and the well reputed company behind my desire to gaslight the Skoda’s ecu offers 3 levels of power upgrade: ‘Stage 1' 204hp, ‘Stage 2' 218bhp (no DPF) , and ‘Stage 2+’ 228HP (no DPF), all available with nothing but a K&N panel filter and some £££ as modification.

Currently I want to play it safe and aim for the Stage 2 tune, which is the first available once the DPF has been gutted, but 10 horsepowers is 10 horsepowers, and I’m assured that the engine/trans/blah blah is capable. Should I be sensible? Or risk early turbo retirement due to over-exertion? I’m assuming that the more power that is pushed out of the little 2.0, the more coal will be rolled out of the NOx tubes. Not a desirable effect in my books. This is also my reliable DD, so that’s something to consider.

Cé hé sin > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:04

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Will you fail your MOT if you remove a DPF that’s supposed to be there, even though they don’t check particulates?

dogisbadob > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:06

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Very easy to get a VAG-COM and tweak the cheat box ;)

4muddyfeet - bare knuckle with an EZ30 > Cé hé sin 05/07/2016 at 16:08

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Yes absolutely, although the company who does it drops the exhaust, cuts along the manufacturers welds from the top, guts the DPF, and rewelds before bolting back up so it’s invisible. They also offer an MOT guarantee which no one has, apparently, ever had to claim on.

4muddyfeet - bare knuckle with an EZ30 > dogisbadob 05/07/2016 at 16:11

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Supposedly it needs a full remap with a DPF delete. There's a few horror stories about some of the cheaper DPF deletes.

Vlad_the_impaler > Cé hé sin 05/07/2016 at 16:12

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The engine won’t rev over 2.5k rpm or 3 on idle and it does not produce any particulates if it is not under load

Svend > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:18

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What have the guys and gals said on Briskoda?

4muddyfeet - bare knuckle with an EZ30 > Svend 05/07/2016 at 16:21

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Only that the company (Shark) are the best lot to do it. I don’t think I actually checked to see if anyone did the 228.

His Stigness > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:27

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I get people wanting to get more power from their cars, but gutting DPF’s, or deleting catalytic converters is just so selfish. So you may get a few more horsepower, but in return, you’re spewing a ton of toxic shit into the atmosphere and making the air quality around you worse.

And people wonder why this planet is fucked.

Svend > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:29

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I’ve heard Shark mentioned a few times and they appear to be quite respected in the Fabia and Octavia community.

KatzManDu > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:32

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What about emissions testing at MOT time?

4muddyfeet - bare knuckle with an EZ30 > His Stigness 05/07/2016 at 16:33

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Or perhaps it’s because the DPF filter on the PD170 is a complete afterthought and regularly clogs up because it wasn’t designed to be used with pumpe duse. The power increase is a by-product, the DPF delete is necessary to make my car work for more than 2 short journeys in a row. 'Fixing' my car requires a remap, so if I can get some free power from it then I will.

4muddyfeet - bare knuckle with an EZ30 > Svend 05/07/2016 at 16:44

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Although... http://www.seatcupra.net/forums/showthr…

dsigned001 - O.R.C. hunter > His Stigness 05/07/2016 at 16:47

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While I appreciate the sentiment, in the case of VW diesels and general passenger vehicles: it’s not really making much of a difference. The diesels that are causing the Lion’s share of the emissions are all from industry - shipping, rail and road freight are all diesel, and all uncorked.

What’s more, the big problem is that the fuel used generates the NOx and SOx as much or more than the engine itself. The combustion if very efficient, but if you’re efficiently burning sulphur, then you’re still burning sulphur.

Svend > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:50

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True but that is from October 2012 so I’d imagine any problems would of been corrected by now.

Have you brought this up with Shark?

His Stigness > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 16:52

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It wasn’t an afterthought in that they thought of it afterward, they had to add it to meet emission testing, so by deleting it you’re polluting more

4muddyfeet - bare knuckle with an EZ30 > Svend 05/07/2016 at 16:55

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Yes, and they're confident with all their available levels of upgrade, but their confidence doesn't translate into my confidence! There's no cost difference for whichever I choose, so the only deciding factor is the longevity of the vehicle components.

His Stigness > dsigned001 - O.R.C. hunter 05/07/2016 at 16:56

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And that mentality is what makes the situation worse. It’s true that industry is what is creating the lion’s share of emission in the world, but it’s also true, at least in the US that only 10% or so of cars are the ones emitting 80-90% of the emissions. I can’t remember if that figure applies to all of the US or just California. But in the case of California, the lion’s share is older broken cars because our emission testing is a joke, and a dirty car can pass. Or people can temporarily fix their car then allow it to pollute more afterwards.

But that mentality of, “well, I’m just one car,” adds up. If everyone thought like that soon enough every car is polluting more, making the situation worse.

And yes, diesel still has sulfur which is being burned, but that’s why there are exhaust treatments in place. In the case of VW TDI’s there are several different catalysts meant to handle different gasses. That’s why you don’t delete shit in the exhuast system.

4muddyfeet - bare knuckle with an EZ30 > His Stigness 05/07/2016 at 17:02

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It was an afterthought in that it was bolted on to meet said emissions standards rather than VW/Skoda release the common rail diesel engine (which is designed to work with the DPF) in time for the introduction of the standards. Emissions standards aren’t just sprung on the manufacturers with no warning. They have time to build and adapt systems to comply, and the DPF on the PD170 is a quick fix that wasn’t properly tested and doesn’t work for anything less than 20 minute motorway drive so the particulates can combust properly.

Svend > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 17:05

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Hmmm. I’d say if you have more than reasonable doubt to either investigate it further, look to see who else can or not to do it.

Saying that. Should anything go wrong, how much would it cost to repair and would Shark pay for it or you.

4muddyfeet - bare knuckle with an EZ30 > Svend 05/07/2016 at 17:08

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I can safely assume they offer no guarantee on the associated components, only on an MOT pass and their own workmanship.

A turbo? Maybe £800-1000 shop price. Trans and motor, who knows. I'd have to ask Vee Dubs in Gateshead.

Cé hé sin > KatzManDu 05/07/2016 at 17:13

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They don’t test particulates but a visibly missing DPF when there’s supposed to be one will fail. The company doing the job disguise what they’ve done so no failure.

Invinciblejets > His Stigness 05/07/2016 at 17:16

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I’m just gonna plug my ears.

Svend > 4muddyfeet - bare knuckle with an EZ30 05/07/2016 at 17:20

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Ouch. In that case, any doubts, step away.

KatzManDu > Cé hé sin 05/08/2016 at 03:36

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They hook emissions equipment up to the tailpipe here in the Belgium for CT.

Cé hé sin > KatzManDu 05/08/2016 at 05:19

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As they do throughout the EU but they don’t test NOx or (so far as I know) particulates other than a visual check for visible smoke.

Two strokes and rotaries are exempt from emissions testing completely.

Smoggi - powered by 3 cylinders > His Stigness 05/08/2016 at 13:42

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If I remember this correctly from last week’s lecture on ICEs the situation in Germany atleast was the following.

VAG used diesel engines without common rail injection. That makes them unsuitable for use with a DPF because the regenerate a DPF you need to dump fuel into the exhaust which is not really easy with the system VAG used at the time. Not running a DPF itself wasn’t a problem.. the cars were still meeting the Euro 4 emissions standard just like they were designed. The afterthought pops up when Germany very suddenly changed legislation to immensly reduce the tax for diesel vehicles with a DPF compared to those without one. So to not lose out on marketshare VAG had to quickly put some kind of DPF on an engine that was never designed with one in mind.

So you could say it was actually an afterthought.

His Stigness > Smoggi - powered by 3 cylinders 05/08/2016 at 15:27

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Alright so it was an afterthought, but I'm assuming it still does reduce emissions? In which case it should stay on their. And if it is truly crap then perhaps one should buy a different car?