Hi Lads and Lassies

                                  My company have just ordered me a Golf GTTDI 170 DSG DPF its arriving very soon and i have a few questions you may be able to help me with.

Ive been searching heavily on this site to find some answers but getting nothing concrete or what im looking for.

To be honest i am quite heavily into tuning but not via V.A.G so quite unaware of what can and can.t be done,this car is just for work and work tend to stick with VW or AUDI , Now your in the picture lets commence.

Reading around it appears that that these Golfs now have whats called DPF and it causes a problem to release more power from the 170 range looking around its between 200-210bhp because of this clogging issue .

Question 1 :  What is the crack with the DPF removal pipe will this be the answer for a more aggressive map and open up a better path for tuning, Will there be lights lit on the dash CEL or the likes ?

Question 2 : Can this DPF REMOVAL pipe be removed come servicing time and map put back to standard so VW have no idea really important for me this.

Question 3 : What power can i take it too safely with the DSG box i am well aware that its the torque that needs governing on the box but can i push the power to 250-260bhp with this DPF removal pipe without any problems or is this just unrealistic , bearing in mind the 170 has stronger internal components and more aggressive cams i believe.

Question 4 : Who could map this type of set-up and what price would i be looking at , i live in salford (Manchester) and not too far away from Awesome Gti.

Reading through many posts i am quite impressed with Chipped UK's Work but via DPF its very limited could these build me a custom map to suit the removal pipe .

It must be safe as i do 20-30k a year and it defo needs to be fully reversable via software or the likes.

So is 250-260bhp with 390-400 ft realistic and reliable your comments and proven knowledge respected as for forum members and tuners/Remappers care to reply.

Hi Mods just realised maybe i should of posted this in the performance and technical area please move if you deem necessary.

Any more info required please ask

Dave

 Anyone have any info !

 I am sure the partical filter can not be removed for some reason or another,my mate has his running about 205bhp with it on and other reason i dont think he could take it off was for warranty issues

 Thx i understand that they could be a warranty issue if you left it on going in to the Dealers but miltek do this replacement pipe surly the tuners have got to grip with the relevant mapping and Dash lights i may give a few a call via phone tomorrow to discuss this further as not had too many replies so far.

Just trying to get as much info as possible , on a positive note what does your mate think of the remap and have you been in the car and bear to give your review.

Who did the remap chipped uk is it reversable?

Dave

I have my GT170 running the Chipped uk fast road map - made 205 bhp 330ft/lbs

Not once have i seen the DPF light on.

It gets used propperly too ;)

I have the Miltek DPF removal pipe, being fitted tueday - we're gonna see whats what with the lights that come on......will keep you posted

Check out my r/r graph - >>>  HERE <<< (scroll down)

Using the ST3 unit from chipped uk i can switch between the maps as i please - handy for the dealer issues you may or may not have

As for service time, i doubt the dealer will be looking for the DPF removal pipe so you'll be fine leaving it on

Looking forward to the CEL ligth issues tuesday...will  keep you posted :D

 My car will be a DSG version will that make a difference also let me know about the DPF removal pipe defo apparently makes a massive difference

Been alittle busy today, this was removed :



.....and replaced with :



I've not changed the map yet...but i have one ready waiting from Chipped Uk. Just removing the DPF has made a marked improvment.

NO CEL light issues as of yet....shouldn't be either.
I'll do about 1000 miles before swapping maps i think, that way the car will have gone though several ignition cycles was should have settled with the new hardware  ^_^

A massive thanks to Corey @ Quattronics (01636 822 288) for fitting my removal pipe this morning - attention to detail was exemplary (he knows how fussy i am)

 Keep me informed think i am going down the same route . Do you think you will get more power and wider curve , its just i spoke to someone in the know and they said it does not release much more power as its not like replacing a Cat converter , but it will be much better with a DPF golf and no issues for people who do low mileage and short runs.

I am following this thread please keep me informed in your findings car is is arriving shortly.

I take it chipped uk will doing a custom map to suit your DPF replacement pipe as soon as you got it mapped let me know the outcome, in the deepest of respect it is usually me being the guinea pig.

You any idea what your expecting as the tuner gave you any indication also with the current map and DPF replacement pipe on what sort of differences have you noticed

Cheers Dave

 So you swapped the CAT for a DOG.... Cool!!!!

 Asking around i have found the main reason for removing the DPF is to improve fuel economy rather than for performance gain.

A DPF removal pipe will reduce the back pressure in the exhaust system allowing for better engine breathing. If you purchase a DPF replacement pipe with all the sensor bosses to take the DPF sensors, you can leave the sensors plugged in, so not causing the dashboard MIL lights to come on.

The limiting factor on the 2.0TDi 170PS engine is the exhaust gas temperature, rather than the engine. Tests have seen exhaust gas temperatures reaching 1000°C on higher power output tests, which for the component life isn't acceptable, so we limit back to 200bhp with the DPF fitted. The torque is capped to 430Nm/ 320lb/ft, due to very poor drivability issues if the torque is increased a lot more past that with the DPF fitted.

If the car had the remap and DPF removed, I'd expect a further 10bhp increase in power on top of the standard DPF remapped car.
 

All of the above was answered by a very knowledgable tuning team so hopefully cleared a bit more up.

Dave

GTITILIDIE:

 Keep me informed think i am going down the same route . Do you think you will get more power and wider curve , its just i spoke to someone in the know and they said it does not release much more power as its not like replacing a Cat converter , but it will be much better with a DPF golf and no issues for people who do low mileage and short runs.

I am following this thread please keep me informed in your findings car is is arriving shortly.

I take it chipped uk will doing a custom map to suit your DPF replacement pipe as soon as you got it mapped let me know the outcome, in the deepest of respect it is usually me being the guinea pig.

You any idea what your expecting as the tuner gave you any indication also with the current map and DPF replacement pipe on what sort of differences have you noticed

Cheers Dave

Well, after doing about 500 miles with out the DPF inplace my findings so far are :

faster turbo spool

not as asthmatic when revving, even in the higher rev range

better fuel econ

and sounds better too - lol

This is on all the fast road map intended for car fitted with the DPF.

I flashed the map that Simon sent me, for cars with out the DPF, and i'm alittle dissapointed - i think he may have sent the wrong map as it feels like an epic fail compared to the other fast road map. I've put the origional fast road map inplace now.

I'll speak with Simon, to clear it up.

But in conclusion todate, the car flys now. Alot better - and obviously there is alot of headroom for more power.

(ohh, and my car when fitted with the DPF and current fast road map made 205.8bhp and 330ft/lbs on dynodynamics rollers)

andyfa:

 So you swapped the CAT for a DOG.... Cool!!!!

LOL

GTITILIDIE:

 

 Asking around i have found the main reason for removing the DPF is to improve fuel economy rather than for performance gain.

A DPF removal pipe will reduce the back pressure in the exhaust system allowing for better engine breathing. If you purchase a DPF replacement pipe with all the sensor bosses to take the DPF sensors, you can leave the sensors plugged in, so not causing the dashboard MIL lights to come on.

The limiting factor on the 2.0TDi 170PS engine is the exhaust gas temperature, rather than the engine. Tests have seen exhaust gas temperatures reaching 1000°C on higher power output tests, which for the component life isn't acceptable, so we limit back to 200bhp with the DPF fitted. The torque is capped to 430Nm/ 320lb/ft, due to very poor drivability issues if the torque is increased a lot more past that with the DPF fitted.

If the car had the remap and DPF removed, I'd expect a further 10bhp increase in power on top of the standard DPF remapped car.

All of the above was answered by a very knowledgable tuning team so hopefully cleared a bit more up.

Dave

Interesting, watch this space for afew more results and options to come ..... it'll be about a week or so so just wait

 any news mucker???

GTITILIDIE:

 any news mucker???

Not yet fella - end of the week.

They have my car - so i'm not expecting much untill later on in the week

 Any update yet geezer!

GTITILIDIE:

 Any update yet geezer!

Sorry, yes, it's going well.

The map is strong, nice and revvy too.

Day to day driving it's better on fuel about town by 3 or 4 mpg and this is continued on a run too. Doing about 80 - 90 units on a run, then the car returned 54mpg.

Obviously driving spiritedly the econ suffers lol, but hey, i don't care about that

There are couple of minor issues, but these are being attended to and will be flashed onto the ecu early next week.

but over all, extremely happy.

And the Revo customer service offered by Revo has been exellent

Any specific questions ?

Tom

Ohh, and NO CEL light issues !

 i know custom code now have a remap developed to tune and remove the dpf from the car, i think its about £500 for both services, not sure if that inc taking the pipe out of not though

 Thought you had yours mapped by Chipped UK not revo ???

What sort of power increase you reckon also you have any real dyno graphs so i can look at the power curve, thx for your replies

Dave

 Interesting like to see peoples reviews on this anywhere with more info graphs and the likes?

jakewalsh:

 i know custom code now have a remap developed to tune and remove the dpf from the car, i think its about £500 for both services, not sure if that inc taking the pipe out of not though

GTITILIDIE:

 Thought you had yours mapped by Chipped UK not revo ???

 

What sort of power increase you reckon also you have any real dyno graphs so i can look at the power curve, thx for your replies

Dave

Mine WAS running the CUK map, but to be honest i've had little joy on getting a fast road map out of them for use with the DOF removal pipe.

They send me a "no DPF map", i flashed it in, and it went no better !

So when i looked at the maps, they were identical. But this issue i will have to take up with Simon @ CUK

The opportunity to have my car used for development came up and so i took it. TBH, the difference is epic !

Such a stronger map, but then Revo have altered more than 3 boost tables.

Once the final adjustments have been tweeked i'll have the car rolling roaded, then post the comparison maps and i'll even do an overlay too

 thx for the update pal i do appreciate it . Revo do come highly recommended make sure you get them maps posted mucker.

GTITILIDIE:

 thx for the update pal i do appreciate it . Revo do come highly recommended make sure you get them maps posted mucker.

Will do fella, will do.

The stage 2 will be great too ......

 Stop leaving me tailing stage 2 blow my brains out mucker WTF

GTITILIDIE:

 Stop leaving me tailing stage 2 blow my brains out mucker WTF

Stage 2 will be great....going by how stage 1 goes

 What does stage 2 compile of??

Inlet manifold ,injectors,fuel pump more boost , remap possible manifold could be a big restriction just going off my tuning history?

Whats your thoughts?

GTITILIDIE:

 What does stage 2 compile of??

Inlet manifold ,injectors,fuel pump more boost , remap possible manifold could be a big restriction just going off my tuning history?

Whats your thoughts?

TBH, the 170 has alot of headroom as standard. The injectors are no where near there safe limmit. The inlet manifold, although having that stupid little flap, is very free flowing, the turbo's is bigger than the 140 so thats got some extra left init.

At the moment it'll just be a higher boost map in my application, but this will probably get afew extra things added along the way.

Currently sat on my kitchen table is an EGR delete.

I was thinking about an exhaust system, but the std bore is the same as the miltek DPF delte pipe, so i personally belive that changing the rest of the system to a larger bore would disrupt the flow going from a2-1/2" to a 2-3/4" half way down the pipe imo.#

When i get some factual info in the stage 2 i'll let you know, but whatever the stage 2 comprises of, it'll be interesting

 like ur style remind me of myself.

NotNormal:

GTITILIDIE:

 Any update yet geezer!

 

Sorry, yes, it's going well.

The map is strong, nice and revvy too.

Day to day driving it's better on fuel about town by 3 or 4 mpg and this is continued on a run too. Doing about 80 - 90 units on a run, then the car returned 54mpg.

Obviously driving spiritedly the econ suffers lol, but hey, i don't care about that

 

There are couple of minor issues, but these are being attended to and will be flashed onto the ecu early next week.

 

but over all, extremely happy.

And the Revo customer service offered by Revo has been exellent

 

Any specific questions ?

Tom

Did the flash get sorted and rectify the problems pal? Any futher imput at this time!

No, not had the updated flash yet, i've been moving house and along with work, not had much time.

I should be getting over there to have the update ASAP.

Will keep you posted

 Had that update yet me main man?

How would you rate the Revo map over the Chipped Uk map as honestly as you can?

Any info on stage 2?

Dave

GTITILIDIE:

 Had that update yet me main man?

How would you rate the Revo map over the Chipped Uk map as honestly as you can?

Any info on stage 2?

Dave

Not had chance to get over ot have the update yet, should be this week sometime, when i have a spare few mins.

The two maps are like chalk and cheese, littereally, they drive so differently.

The Chipped Uk map was very torquey but not very revvy, and was all down at the bottom of the rev range.

The Revo version is totally different, alot smoother and a more linier torque delivery. They both start at the same point but the Revo map rev's so much faster and free'r.

doesn't feel as restricted.

The latter half of the map is stronger too, but this is an unfair comparison with the Chipped UK map as there map was designed with the DPF in mind so was damped off in the higher rev's.

The stage to will be a high boost map......more details to follow as and when i get them

 Just had my GT Sport 170 TDI DSG remapped by CHIPPEDUK. I used their ST3 (Self Tuning system). Similiar to Bluefin in that firstly I plugged in the ST3 to read my original map, emailed it to them, they emailed me back 2 modified files (fast road and economy) load them onto the ST3 and finally plugged in the ST3 and loaded the new map onto my ECU. Sounds complicated but was quite simple.

I was a bit sceptical how good their map would be and also concerned whether a DSG could be remapped because VW state the max torque for a DSG is 350NM, which the 170 TDI has as standard, I shouldn't have been worried because I'm very happy with the result. Simon at chippeduk said they make the DSG map more progressive because the DSG doesn't like big spikes of torque, it can handle lots of BHP and lots of torque if it's progressive. I was also concerned about my DPF, again Simon reassured me that they only increase the BHP to 210 as this preserves the DPF. Anyway down to the nitty gritty of performance. Some example pre and post-remap times were recorded amateurly by me with a stop watch, each done twice though to try to get some accuracy, the post remap is the fast road map for which chippeduk quote +40BHP and +90NM torque. I used the same stretch of road which was a steepish uphill motorway entry slip road and the weather and temperature was the same both days. Pre-remap 35-80 in 4th 10.3 secs, fast road map 9.0 secs. Pre-remap 50-80 in 5th 9.6 secs, fast road map 8.2 secs. Also on a flat road my pre-remap 30-70 in 3rd was 5.9secs and my fast road map is 5.2secs. On the surface these might not seem much of an increase, however they represent around a 15% improvement. I know that in the summer my pre-remap 0-60 was 6.9, an average of 3 runs 6.8, 6.9 and 7.0, but this time of year the traction isn't there to make a comparative run so I will post later when roads are better. Haven't tried the economy map, but power gains quoted are +25BHP and +60NM torque and 4-6mpg, however I have noticed a gain of 3-4mpg with the fast road map when driving a routine journey sensibly. I was considering DPF removal but thought it all seemed a bit scary and am now more than happy with my remapped DPF car. I'm looking forward to meeting a game 330d driver, I quite fancy my chances as I'm around 150kg lighter to boot!

looks like I will be going down the DPF removal route now

Car is in @ VW today to fix my engine cover. All my torque must of blown it off .....

**** Just a quick update****

Currently running some 'beta' software.

Only had this on for about 1000 miles or so, but the finished article shouldn't be too long in the pipeline now