So would a standard Vrs TDI 184ps with 380nm

Tuned to 240ps and 500nm be Quicker then a standard TSI Vrs 220ps with 350nm or the new 230 for that matter?

I know the figures are bigger but would it really be quicker then the TSI?

I would of thought with more power and torque it would have to be

Yes that's what I was thinking too as it seems obvious, but I was wondering was there any reason it wouldn't be...

You may have trouble getting that sort of power to the ground, meaning standing start launches won't be significantly faster, but in gear acceleration would be quite rapid.

There is also more to it than just peak outputs. A solid wide power band may be quicker than a narrow, but higher, band because the engine is developing more power more of the time. In a car with tall gearing a wider band will be more effective.

Wouldnt be a lot to tell between them I wouldnt have thought....might go a little better in gear in the right rev range with all that extra torque.

I guess thats the trouble. The diesel has v short gears up to 4th and quite a narrow powerband that the box wouldnt change. Getting the power down cleanly will be quite difficult too...its a challenge in damp conditions in a stock one as it is.

My guess it would take the car from not quite as quick to nearly as quick, if perhaps a touch quicker in real world conditions. The torque will ultimately most likely make it feel a little quicker than it actually is. Similar thing for the TSI....its not much quicker than the previous gen 210/200hp versions really, just slightly better power band and a considerable increase in torque output.

I think its the diesel like torque output which tends to make people comment that they feel it has more than 220ps, it will be easier and less work to get up to speed than the older motors but revved out there wont be alot of difference.

A tuned TSI would destroy a tuned TDI but we all know that already :-)

.....as an ownership prospect though for me I think the diesel does win out stock for stock.

For what equates to quite a minor difference in usable performance real world, the diesel is v cheap to run and will return 40+ mpg pretty much regardless how it is driven.

The petrol is efficient if driven with a level of restraint but used hard it'll be returning low-mid 20's...I gather most people are seeing low/mid 30's mpg with mixed use. Its the compromise you make for slightly better performance and a nicer character motor (though I wouldnt say a 220 TSI is bubbling with character in the vRS).

I made some 'theoritical' computation some times ago related to this subject.

I used the Power and Torque curves from a stage 1 remap TDI, so only 220hp, 450Nm.

Already, we can see the gearbox ratios are not very well suited to the power and torque increase, especially at low speeds.

The remap TDi closes the TSI performances only at high speeds.

 

First curve shows the max torque (in Nm) made availble to wheels for different cars.

The second one shows the associated max acceleration (in m.s^-2).

("RS TDI reprog" stands for the stage 1 TDI remap)

 

 

Edited 14 November, 201510 yr by JPH0091

On Uk roads it's pretty irrelevant with cameras, congestion. You might as well buy diesel for economy and probably residuals. On a clear Autobahn, having seen a YouTube car magazine comparison of acceleration to top speed of both stock cars, the TDI is destroyed. The remap might equalise it.

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Edited 14 November, 201510 yr by JPH0091

On Uk roads it's pretty irrelevant with cameras, congestion.

Can't believe that comment is coming from someone in Lincolnshire. We have some great roads and little congestion!

Edited 14 November, 201510 yr by GuyVXT

Seems a little biased comparing a mapped TDI VRS against a standard petrol version.

 

Try putting the mapped TDI against a mapped petrol VRS, Revo for instance do a stage 1 map for the TSI mk3 VRS which comes in at between 309-328bhp and between 320 and 360Lbft of torque.

 

I know which one my money would be on.

I have a DTUK'd TDI and have driven a std TSI from when a nice member on here came over or coding (both manuals)

To drive in the real world they felt the same but the TSI carried on pulling where as mine inevitably peaked then dropped off.

I going to the dealer tomorrow to hopefully trade in for a TSI DSG with a few toys proving the deal is good, Will miss the mpg though and once the TSI is DTUK'd it will hopefully be much quicker and smother.

I'd say it depends on the roads. I found with my last tdi vrs it wasn't the power that limited it's speed but the chassis.

On tight twisty stuff in the Yorkshire dales it just couldn't cope, it felt very roly poly and constantly hitting the bump stops. The brakes in the mk2 are terrible too.

My new one feels a bit better and the brakes are far better but it could have 500 bhp and wouldn't be anywhere near a megane 250/265/275 over anything but the longest flattest and straightest roads.

Don't get me wrong I obviously really like my vRS but it's not a speed machine. If you want that then other brands offer much better packages.

Can't believe that comment is coming from someone in Lincolnshire. We have some great roads and little congestion!

Yes the roads are clearer than other areas, the speed limit's still the same though and you can't outrun a GATSO. That's why I suggested the autobahn for a good blast or a track day.

So would a standard Vrs TDI 184ps with 380nm

Tuned to 240ps and 500nm be Quicker then a standard TSI Vrs 220ps with 350nm or the new 230 for that matter?

I know the figures are bigger but would it really be quicker then the TSI?

 

i have a VRS TDI, using the lap timer in the maxidot  adding a DTUK box to 0-100 time is 6.7 sec.

traction is an issue, i have the DSG so in normal Drive mode the car gets a lot of axle tramp and it sounds like something will break, putting into Sport mode with traction control off, gives a better take off with less axle tramp, but using the launch control take off is smooth, and fast.

Can't believe that comment is coming from someone in Lincolnshire. We have some great roads and little congestion!

And one of the highest number of killed and seriously injured on the roads.

Having now owned both, both in standard form are quick enough for the public road.

Never had my TDI remapped but I would have thought it would give the TSi a run for its money, losing out on the top end power.

With the TSI, I would imagine a remapped version would 'king fly!

So far I've not had the need to take it past 4krpm as it's had plenty of pull.

i have a VRS TDI, using the lap timer in the maxidot  adding a DTUK box to 0-100 time is 6.7 sec.

traction is an issue, i have the DSG so in normal Drive mode the car gets a lot of axle tramp and it sounds like something will break, putting into Sport mode with traction control off, gives a better take off with less axle tramp, but using the launch control take off is smooth, and fast.

 

How does the DSG box cope with the extra power from the DTUK box? I understand that it surpasses the torque limit in lower gears? I'd love the extra overtaking shove but I really don't want to break anything

If it's any comparison I had a MK2 FL TSI, manual with Shark Stage 1 and had a spirited play with a diesel of the same generation with a Revo stage 1 and I was miles ahead...

How does the DSG box cope with the extra power from the DTUK box? I understand that it surpasses the torque limit in lower gears? I'd love the extra overtaking shove but I really don't want to break anything

The DSG seems to be holding up ok, if it goes bang I'll unplug the box and get it fixed under warranty.

Had to take the car in because the boost pressure sensor had failed, no trace of the dtuk was detected when they connected the diagnostic computer up.

Is the DTUK box plug in and play?

I would imagine a mapped TDI would perform similar to a standard TSI however it still won't feel anywhere near as smooth, refined or fun to drive especially since with its short powerband. the petrol feels great with plenty of torque as soon as it comes on boost and it just keeps going and going and going unlike the diesel which gives you a punt then it just tails off.

I would imagine a mapped TDI would perform similar to a standard TSI however it still won't feel anywhere near as smooth, refined or fun to drive especially since with its short powerband. the petrol feels great with plenty of torque as soon as it comes on boost and it just keeps going and going and going unlike the diesel which gives you a punt then it just tails off.

You've just made the case for staying with a TSi when buying a vRS, unless fuel consumption is a major issue.

 

If 'tis so, then surely you can't really afford a £25k+ car, & should be looking  to spend a little less on your vehicle?

 

Just a thunk.............

 

 

DC 

The DSG seems to be holding up ok, if it goes bang I'll unplug the box and get it fixed under warranty.

Had to take the car in because the boost pressure sensor had failed, no trace of the dtuk was detected when they connected the diagnostic computer up.

I have a DTUK box on my tdi DSG Vrs.

My boost pressure sensor failed and had to be replaced. I've not had the guts to put my box back on yet as I wasn'the sure if it was possibly the box that made it fail in the first place.

Any idea on whether this could be the case?

I have a DTUK box on my tdi DSG Vrs.

My boost pressure sensor failed and had to be replaced. I've not had the guts to put my box back on yet as I wasn'the sure if it was possibly the box that made it fail in the first place.

Any idea on whether this could be the case?

I had the boost pressure sensor on mine fail too, running the car with the box installed, done over 3,000km since it was replaced with the box installed, i found with map 1 under light throttle at around 1800 rpm and the car changing gear there was a hesitation/flatspot, changed to map 2 and seems to be ok.