At last! A proper DPF delete.

[GoLfMan]

It'd be a dam shame the day they start checking on soot emissions. But honestly I dont know how they could possibly police it.

if I had a GT I'd be doing this ASAP!

except I cant find a second hand one!!!!

Seems people are holding onto the dam things!

I hope that this chip and DPF delete will be available for all other VAG cars with the same engine?

[Greg Roles]

Nothing is certain as I took the 15hp from a UK Seat forum post as it was the only real specific thing I could find. In my opinion the considerable fuel economy increase tells me it's a major restriction. There are similar impressive gains in the states when guys ditch their DPF off their pickups.

I'm sure Gavin from Custom Code will get us the actual figures shortly.

Golfie, the fact that DPF's are now a requirement tells me getting rid of it altogether needs to be carefully calculated. The states are about to make retrofitting DPF's to older diesels law, and we'll follow at some point.

[benough]

Ok cool.

Were people doing this when catalytic convertors were new?

Also did catalytic convertors inhibit the exhaust flow when they first came out and did they evenutally mature enough so that they don't inhibit the exhaust flow anymore?

My point is that our DPF's are the first generation? (correct me if I'm wrong) and wouldn't they be likely to mature?

Maybe when my DPF packs in it I can just install a good one from a secondhand MK8 Golf

[Greg Roles]

DPF differs dramatically from a cat, ( the DPF canister actually has a portion of cat in it ) but where a cat is a large number of small, straight through "straws", your DPF has all dead ends, the exhaust is forced through the ceramic walls thus trapping the soot, and then finds it's way to an outlet. It's nowhere near as good a flow path as a cat, and massively more restrictive.

Hopefully yeah DPF's will get better. With a rrp of $5000, you really going to be upgrading?

The MK6 diesels have even more anti pollution gear than we do, and I can't see Mk 7 or Mk 8 getting any simpler sadly.

[h100vw]

Still waiting on a price for shipping fellas. First one was a joke from Fedex. I could go and pick 2 up personally and have some change!!

Gavin

[jayjay]

the 170pd is already a beast. i cant imagine it with another 100nm of torque....

Is milltek australia affiliated with CC? couldn't they knock up some downpipes locally or is it uk specific?

aside, i love how you diesel guys are so much more lax with this chip warz business.
none of this "my chip is bigger than your chip" shannanigans.

[Greg Roles]

Oilers don't have as big a chip...on the shoulder?

[gldgti]

just on theorising about the dlf's removal and its effect..... look at it this way - if you run without an air filter, will you make more horsepower?

only with a DPF, you wont damage you engine in the long run by its removal

going from a stock exhaust on my mk3 TD to a 2.5" free system, the turbo spool was exceptionally improved.... it can only be a good thing. power gains will depend on just what your pushing though - if you've optimised a lot of other systems already, i think its fair to say you could expect reasonable gains. if the rest of the car is bog stock and all you do is ditch the dpf, then obviously the gains will be less.

i think generally (and this is largely to do with "chip war" type mentality), you cant put a quantifyable dollar value on each hp to be gained - it really comes down to the overall package....

[h100vw]

the 170pd is already a beast. i cant imagine it with another 100nm of torque....

Is milltek australia affiliated with CC? couldn't they knock up some downpipes locally or is it uk specific?

aside, i love how you diesel guys are so much more lax with this chip warz business.
none of this "my chip is bigger than your chip" shannanigans.

The pipes are all made in the UK. So not just a case of knocking them up. I believe JBS commissioned the downpipe and have exclusivity on supply as a result.
Having a pipe made locally wouldn't work, as they wouldn't let me have the software.
I already asked that.
Gavin

[benough]

going from a stock exhaust on my mk3 TD to a 2.5" free system, the turbo spool was exceptionally improved.... it can only be a good thing. power gains will depend on just what your pushing though - if you've optimised a lot of other systems already, i think its fair to say you could expect reasonable gains. if the rest of the car is bog stock and all you do is ditch the dpf, then obviously the gains will be less.

So what are you suggesting should be changed in accordance with the DPF delete?

Pod Filter? Bigger Intercooler? DPF back exhaust to match the diameter of the new downpipe?

[GoLfMan]

is it just GT TDI specific?

[gldgti]

So what are you suggesting should be changed in accordance with the DPF delete?

Pod Filter? Bigger Intercooler? DPF back exhaust to match the diameter of the new downpipe?

what i was saying is, it all depends how much power you want... sorry - the point i was trying to make, to clarify, is that: The expected gains from a DPF delete like the one being talked about by the OP cant really be quantified in terms of hp gained other than on an otherwise completely stock vehicle, since the gains it potentially allows are far greater than that will be realised on an otherwise stock vehicle.

hope that makes sense

[Greg Roles]

Turbo's work best with no exhaust pipe at all. The whole extractor / scavenging idea goes out the window after the turbine. As the DPF is by FAR the biggest restriction, ditching it will give the biggest gain. A big bore pipe and lower restriction mufflers would help, but by nowhere near as much. They never do.

On the inlet side again it all helps a bit, but just putting a POD onto a stock inlet is going to do stuff all really. As part of a total inlet makeover, yeah, great idea. I've not progressed there, due to both a lack of play money, and some new ideas I'm learning about. No rush, as this thread shows, the hot up parts are starting to flow, and I know a kit will appear for the inlet "up my alley".

The clutch and dual mass fly is going to be the biggest problem to hopped up TDI's in my opinion. Can't see the stock one holding up to a whack more torque. Part of my "dream" is an uprated "normal" clutch. It wouldn't be user friendly in a diesel though, the whole reason they use the "odd" dual mass in the first place.

Golfie, this would work in the Passat, Tiguan, any 170pd TDI, as it's the same donk.

[Greg Roles]

The pipes are all made in the UK. So not just a case of knocking them up. I believe JBS commissioned the downpipe and have exclusivity on supply as a result.
Having a pipe made locally wouldn't work, as they wouldn't let me have the software.
I already asked that.
Gavin

Gav, is the downpipe / cat back any bigger than stock? I sure hope so!!

[Greg Roles]

the 170pd is already a beast. i cant imagine it with another 100nm of torque....

I can imagine it with 200....550 sounds about right!