Viezu remap feedback?

[xfu990]

Hi,
This question has been asked before, but some time ago, so thought it may be worth a try again?
I'm interested upon receiving any feedback on Viezu engine remaps. I have a 2016 102 BHP T6 (Euro 5) and was wondering if there is any experience out there please?
Please, no doom posts with your 5 speed gearbox explodes at the first roundabout or the turbo will fall apart on the first hill. Please no Pendle or Revo are far better either LOL.
I've been offered a intermediate map, limiting the torque for gearbox protection, DPF removal and EGR removal. The guy that will possibly perform the Map has countless years of mapping experience, promising the vital (in my opinion) smooth Torque curve.
I'm interested in any real world experience out there. Real life MPG figures would be great. i.e. I currently get 28-32 MPG (however the computer tells me I get 38-42 MPG, joke) 28 MPG real world "normal" driving, a giddy high of 32 MPG with very restrained acceleration, Miss Daisy etc.
Hope you can help please

 

[xfu990]

Ok, no replies

So I went ahead anyway, like you do

The DPF was constantly regening, the EGR was blocked solid! So both now deleted.
DPF has had a boring bar put though it.
It has a new clutch and flywheel fitted, it started to rattle, prior to the MAP, it also has a new cambelt, due on miles, so no worries there. Also new genuine VW synthetic gearbox oil, again due to miles.

I asked for a smooth linear non gearbox breaking mid range map.
I received a nice mid range map. Circa 150 bhp but I do not know (rather annoyingly) the torque until the rolling road is available again.

Results after circa 9,000 miles:
Fuel consumption running a genuine 44-48 mpg. Around 40-42 when being less kind to the old girl. The screen now shows a reasonably accurate MPG reading, which is nice.

It's taking far too long to warm up in winter, this is due to the EGR delete, it's amazing how much difference that makes. Various engine tuners said it would make no difference, I can only conclude that they must be tuning in summer only! It is as bad as wanting to block the radiator off once the temperature drops to circa 4 degrees! Oh, it has had a brand new genuine thermostat, that made zero difference, lol. bypassing the EGR cooler helped a little but has not cured the over cooling, not good.

The original map used to have a (gearbox protecting?) flat spot, I was a lazy driver and used to let it struggle in the wrong gears!
Result now, after the map, the flat spot has now gone. However if I'm super lazy now it will induce a judder, suggesting to me that there is a little to much torque. If you drive with some sort of mechanical sympathy then there are no judder issues what-so-ever.
No gearbox whine or clutch judder yet, fingers crossed.
Driveability is great, the van is genuinely transformed and a nicer place to be.
Noise, slight increase, but seeing as the DPF was bored through perhaps the remains are having a silencing effect? This was done in situ with just the outlet disconnect and pulled to one side.
Does it smoke? No, nothing visual.

Please note I certainly do not endorse DPF removal or EGR deletes. I just thought I would share this information, make up your own mind on these.
Was it worth it? MPG and drivability, definitely a yes. Environmentally, definitely a no.

 

[Skyliner33]

Ok, no replies

So I went ahead anyway, like you do

The DPF was constantly regening, the EGR was blocked solid! So both now deleted.
DPF has had a boring bar put though it.
It has a new clutch and flywheel fitted, it started to rattle, prior to the MAP, it also has a new cambelt, due on miles, so no worries there. Also new genuine VW synthetic gearbox oil, again due to miles.

I asked for a smooth linear non gearbox breaking mid range map.
I received a nice mid range map. Circa 150 bhp but I do not know (rather annoyingly) the torque until the rolling road is available again.

Results after circa 9,000 miles:
Fuel consumption running a genuine 44-48 mpg. Around 40-42 when being less kind to the old girl. The screen now shows a reasonably accurate MPG reading, which is nice.

It's taking far too long to warm up in winter, this is due to the EGR delete, it's amazing how much difference that makes. Various engine tuners said it would make no difference, I can only conclude that they must be tuning in summer only! It is as bad as wanting to block the radiator off once the temperature drops to circa 4 degrees! Oh, it has had a brand new genuine thermostat, that made zero difference, lol. bypassing the EGR cooler helped a little but has not cured the over cooling, not good.

The original map used to have a (gearbox protecting?) flat spot, I was a lazy driver and used to let it struggle in the wrong gears!
Result now, after the map, the flat spot has now gone. However if I'm super lazy now it will induce a judder, suggesting to me that there is a little to much torque. If you drive with some sort of mechanical sympathy then there are no judder issues what-so-ever.
No gearbox whine or clutch judder yet, fingers crossed.
Driveability is great, the van is genuinely transformed and a nicer place to be.
Noise, slight increase, but seeing as the DPF was bored through perhaps the remains are having a silencing effect? This was done in situ with just the outlet disconnect and pulled to one side.
Does it smoke? No, nothing visual.

Please note I certainly do not endorse DPF removal or EGR deletes. I just thought I would share this information, make up your own mind on these.
Was it worth it? MPG and drivability, definitely a yes. Environmentally, definitely a no.

Out of interest who did the map? And why were you so set on this rather than Revo?

 

[xfu990]

Larton Engine Developments did the map, only used as he is local and old school, decent knowledgeable Guy. No preference on the map, only the mapper.

 

[The Flying Scotsman]

Ok, no replies

So I went ahead anyway, like you do

The DPF was constantly regening, the EGR was blocked solid! So both now deleted.
DPF has had a boring bar put though it.
It has a new clutch and flywheel fitted, it started to rattle, prior to the MAP, it also has a new cambelt, due on miles, so no worries there. Also new genuine VW synthetic gearbox oil, again due to miles.

I asked for a smooth linear non gearbox breaking mid range map.
I received a nice mid range map. Circa 150 bhp but I do not know (rather annoyingly) the torque until the rolling road is available again.

Results after circa 9,000 miles:
Fuel consumption running a genuine 44-48 mpg. Around 40-42 when being less kind to the old girl. The screen now shows a reasonably accurate MPG reading, which is nice.

It's taking far too long to warm up in winter, this is due to the EGR delete, it's amazing how much difference that makes. Various engine tuners said it would make no difference, I can only conclude that they must be tuning in summer only! It is as bad as wanting to block the radiator off once the temperature drops to circa 4 degrees! Oh, it has had a brand new genuine thermostat, that made zero difference, lol. bypassing the EGR cooler helped a little but has not cured the over cooling, not good.

The original map used to have a (gearbox protecting?) flat spot, I was a lazy driver and used to let it struggle in the wrong gears!
Result now, after the map, the flat spot has now gone. However if I'm super lazy now it will induce a judder, suggesting to me that there is a little to much torque. If you drive with some sort of mechanical sympathy then there are no judder issues what-so-ever.
No gearbox whine or clutch judder yet, fingers crossed.
Driveability is great, the van is genuinely transformed and a nicer place to be.
Noise, slight increase, but seeing as the DPF was bored through perhaps the remains are having a silencing effect? This was done in situ with just the outlet disconnect and pulled to one side.
Does it smoke? No, nothing visual.

Please note I certainly do not endorse DPF removal or EGR deletes. I just thought I would share this information, make up your own mind on these.
Was it worth it? MPG and drivability, definitely a yes. Environmentally, definitely a no.

This sounds suspiciously like the map that the conversion company got done to my van. @Dellmassive
What a disaster it has been.
It’s currently In the garage at a motorsport specialist who’s trying to sort the mess they made of it.
This boring through the DPF is ludicrous.
It was just meant to be a power upgrade but they mapped out the DPF and left it in place and bored a hole through it destroying every sensor inside it.
End result was the DPF and whole exhaust system got choked full of soot because the ecu didn’t know it existed and therefore did no regens.
I would be very wary of this mapping practice

 

[xfu990]

End result was the DPF and whole exhaust system got choked full of soot because the ecu didn’t know it existed and therefore did no regens.

Interesting. Sorry to hear that you are having issues.
I can only quote on my experience.
The map is what I asked for and the DPF boring also. The tuner did as I requested.
My idea is that it doesn't do any regens, the DPF was 60% blocked on mine prior to being bored.
How many miles has yours done since the work? Was/is yours perhaps using oil or is the EGR still in use? % blockage before work?
In essence you are (I am) returning the vehicle to a pre-emission type vehicle.
For example, my old 2.5 TDI T4 did 475,000 + miles without blocking the exhaust with carbon, this was a very loose engine, well used vehicle and abused and with no issues. so I am finding it difficult to understand a choked exhaust system full of soot. Religious 5,000 mile oil changes, always branded diesel and millers diesel additive.
Sounds to me like you need a clean standard system re-fitting and an appropriate map to go with it.
Hope you get it sorted

 

[The Flying Scotsman]

Interesting. Sorry to hear that you are having issues.
I can only quote on my experience.
The map is what I asked for and the DPF boring also. The tuner did as I requested.
My idea is that it doesn't do any regens, the DPF was 60% blocked on mine prior to being bored.
How many miles has yours done since the work? Was/is yours perhaps using oil or is the EGR still in use? % blockage before work?
In essence you are (I am) returning the vehicle to a pre-emission type vehicle.
For example, my old 2.5 TDI T4 did 475,000 + miles without blocking the exhaust with carbon, this was a very loose engine, well used vehicle and abused and with no issues. so I am finding it difficult to understand a choked exhaust system full of soot. Religious 5,000 mile oil changes, always branded diesel and millers diesel additive.
Sounds to me like you need a clean standard system re-fitting and an appropriate map to go with it.
Hope you get it sorted

It’s done 5000 miles since the original remap.
Started noticing black smoke at high revs which just got worse and worse
Im very aware of what removing the DPF and EGR does.
Strapping that shit to the diesel engine was the worst thing to happen to the diesel engine ever.

 

[xfu990]

It’s done 5000 miles since the original remap.
Started noticing black smoke at high revs which just got worse and worse
Im very aware of what removing the DPF and EGR does.
Strapping that shit to the diesel engine was the worst thing to happen to the diesel engine ever.

Ah, I see your frustrations now, not good, lots of unburned fuel = soot

 

[elbutio]

I had a viezu remap many many years ago on a BMW 320d. I thought it was awesome. Had other cars also tuned with different companies, no rolling roads, what would be deemed as generic maps I guess. Never had any issues with these either.
In fact I might look into viezu again soon