Remap pros and cons
Discussion
I have a 63 plate SEAT which has the common rail 2 litre TDi engine.
I am thinking that I want to remap it to get more power.
The thing is the car is still under warranty and it will invalidate parts of the warranty that cover the engine, lots of room for scope there, so do I wait until the warranty expires or do I just do it.
The P'Her in me says Just Do It.
I am wondering where to get it done (NW based), what the implications are.
The car has Flappy Paddles with DSG and currently produces 177 bhp as per standard.
Any thoughts on this please ?
Thanks
I am thinking that I want to remap it to get more power.
The thing is the car is still under warranty and it will invalidate parts of the warranty that cover the engine, lots of room for scope there, so do I wait until the warranty expires or do I just do it.
The P'Her in me says Just Do It.
I am wondering where to get it done (NW based), what the implications are.
The car has Flappy Paddles with DSG and currently produces 177 bhp as per standard.
Any thoughts on this please ?
Thanks
I'd be interested to hear views on this. I have a 2012 Mark 6 Golf with the 140bhp 2.0 TDi, and I'm informed that I can only have the Revo remap, as VAG did something sneaky to the EMU to prevent remapping.
The cost, including before and after dyno runs and the device which plugs into the diagnostic port to change the mapping back to standard comes to around £600, so it's not something to undertake lightly without there being tangible benefits in terms of increased BHP, torque and fuel consumption.
The cost, including before and after dyno runs and the device which plugs into the diagnostic port to change the mapping back to standard comes to around £600, so it's not something to undertake lightly without there being tangible benefits in terms of increased BHP, torque and fuel consumption.
If you go for a decent map, they'll put a warranty on the parts that the manufacturer won't cover. The only problem you may have is with the DPF, as a Diesel remap normally produces more soot, owing to the extra fuel that gets pumped it.
Having said that I got my old A5 remapped, and never suffered any DPF problems.
Having said that I got my old A5 remapped, and never suffered any DPF problems.
I spoke to a few remappers today and the one that gave me most confidence was more-bhp at Crewe.
He said the same about the DPF, if you drive a car hard constantly it will produce more soot, however you can say that about a non remapped car, I see the logic. Drive a non remapped hard and a remapped more reserved, which will produce the most soot ?
Secondly I asked about the affect on warranty and two of them said if you are honest with a dealer then there is usually no fuss. If there is an obvious condition that is caused by a remap then the dealer would have to prove this and ultimately you end up paying.
One other thing more-bhp said that they have software that counters the very latest VAG software so true remapping is successful and its not a remap module that they have fitted instead.
He also told me that he has only ever had one issue with a dealer after remapping, out of hundreds of remaps.
I will take my chances with this guy I think, the website looked good and he could answer everything I asked confidently.
I am not trying to sell him by the way !!!
He said the same about the DPF, if you drive a car hard constantly it will produce more soot, however you can say that about a non remapped car, I see the logic. Drive a non remapped hard and a remapped more reserved, which will produce the most soot ?
Secondly I asked about the affect on warranty and two of them said if you are honest with a dealer then there is usually no fuss. If there is an obvious condition that is caused by a remap then the dealer would have to prove this and ultimately you end up paying.
One other thing more-bhp said that they have software that counters the very latest VAG software so true remapping is successful and its not a remap module that they have fitted instead.
He also told me that he has only ever had one issue with a dealer after remapping, out of hundreds of remaps.
I will take my chances with this guy I think, the website looked good and he could answer everything I asked confidently.
I am not trying to sell him by the way !!!
Dermot O'Logical said:
I'd be interested to hear views on this. I have a 2012 Mark 6 Golf with the 140bhp 2.0 TDi, and I'm informed that I can only have the Revo remap, as VAG did something sneaky to the EMU to prevent remapping.
The cost, including before and after dyno runs and the device which plugs into the diagnostic port to change the mapping back to standard comes to around £600, so it's not something to undertake lightly without there being tangible benefits in terms of increased BHP, torque and fuel consumption.
The price I got today was half this, and not from a mobile jack the lad set up either !The cost, including before and after dyno runs and the device which plugs into the diagnostic port to change the mapping back to standard comes to around £600, so it's not something to undertake lightly without there being tangible benefits in terms of increased BHP, torque and fuel consumption.
I'm not planning to map my DPF'd TDI because I am still concerned about the DPF. You increase torque by using more boost and richer air fuel ratios. Both will increase soot and therefore the burdens on the DPF and regeneration systems which may cause issues. Most people remap as they want more performance, so the argument about the net overall soot isn't logical.
Don't think I'm anti-tuning, far from it, on the right engine. I'm happy to map my GTR and worked for Cobb for two years reverse engineering the ECU and making modifications to the software to add new features. On a petrol engine you have to worry about temperatures and knock. Diesel engines used to be tuned less aggressively so were nice to get big gains from without knock limitation, mainly limited by smoke and clutch or gearbox protection. Now they have higher specific outputs and the DPF on a tuned car would always be a fly in the ointment for me.
Don't think I'm anti-tuning, far from it, on the right engine. I'm happy to map my GTR and worked for Cobb for two years reverse engineering the ECU and making modifications to the software to add new features. On a petrol engine you have to worry about temperatures and knock. Diesel engines used to be tuned less aggressively so were nice to get big gains from without knock limitation, mainly limited by smoke and clutch or gearbox protection. Now they have higher specific outputs and the DPF on a tuned car would always be a fly in the ointment for me.
No. What about you? I find the 3.0 amusing enough for this sort of car, the 4.2 would be my bag if it was my main car, but I still wouldn't map it, perhaps more so as there are two DPFs IIRC? I know we discussed this a bit before, but you've perhaps not kept your Audis long enough to know if the DPFs were going to be an issue with remap?
DPF can be an in issue much sooner if the removal rate is less than the accumulation rate because of failed regenerations or excess soot from rich mixture.
If I tune my 3.0 TDI to the output of the 4.2 but don't add extra DPF capacity do I gamble that I can get the output of a 40% larger engine with twin turbos with LESS soot? It is, no pun intended, a pipe dream.
There are enough DPF issues on standard, well maintained cars. They can be hard to clean if attached to a cat.
If I tune my 3.0 TDI to the output of the 4.2 but don't add extra DPF capacity do I gamble that I can get the output of a 40% larger engine with twin turbos with LESS soot? It is, no pun intended, a pipe dream.
There are enough DPF issues on standard, well maintained cars. They can be hard to clean if attached to a cat.
Newer one if like the 3.0 will be Euro 6 with Adblue injection. It may have different injectors and turbos and other changes, would surprise me if not. A concern with DPF pointed out to me is how you measure smoke or soot with DPF when tuning? The VCDS readout seem a bit numb and wouldn't tell you which areas of the map were smoking. You could go for what you think is a safe lambda but on my oil boilers I don't just check the mixture but the smoke number too.
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