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Chip tuning the 3.0TDI A5


Golfer
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[ QUOTE ]

I wonder how much BHP can be freed by superchiping the 3.0TDI engine?, If as quoted the 3.0TDI covers 0-60 in 5.9 then with 50+BHP should be down to 5.0Secs, as quick as the S5 tongue.gif

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Think the engine will just be tweaked from the one currently in use 233ps which maps to about 285ps, so would expect figures around that.

Closer to 5.5 i would think and maybe 2 - 3 secs of the 0 - 100 time, but with figures audi have been quoting car must be light maybe around 1500/50 Kg. 169144-ok.gif

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[ QUOTE ]

[ QUOTE ]

I wonder how much BHP can be freed by superchiping the 3.0TDI engine?, If as quoted the 3.0TDI covers 0-60 in 5.9 then with 50+BHP should be down to 5.0Secs, as quick as the S5 tongue.gif

[/ QUOTE ]

Think the engine will just be tweaked from the one currently in use 233ps which maps to about 285ps, so would expect figures around that.

Closer to 5.5 i would think and maybe 2 - 3 secs of the 0 - 100 time, but with figures audi have been quoting car must be light maybe around 1500/50 Kg. 169144-ok.gif

[/ QUOTE ]

Looking aorund the internet I've found these stats on carfolio.com (not the most accurate site in the world I know but...)

A5 3.2 FSI FWD 1495KG

A5 3.2 FSI 4WD 1535KG

A5 2.7TDI FWD 1575 KG

S5 1630KG

These weights seem on the high side given the cliamed performance/economy figures...

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[ QUOTE ]

[ QUOTE ]

[ QUOTE ]

I wonder how much BHP can be freed by superchiping the 3.0TDI engine?, If as quoted the 3.0TDI covers 0-60 in 5.9 then with 50+BHP should be down to 5.0Secs, as quick as the S5 tongue.gif

[/ QUOTE ]

Think the engine will just be tweaked from the one currently in use 233ps which maps to about 285ps, so would expect figures around that.

Closer to 5.5 i would think and maybe 2 - 3 secs of the 0 - 100 time, but with figures audi have been quoting car must be light maybe around 1500/50 Kg. 169144-ok.gif

[/ QUOTE ]

Looking aorund the internet I've found these stats on carfolio.com (not the most accurate site in the world I know but...)

A5 3.2 FSI FWD 1495KG

A5 3.2 FSI 4WD 1535KG

A5 2.7TDI FWD 1575 KG

S5 1630KG

These weights seem on the high side given the cliamed performance/economy figures...

[/ QUOTE ]

New S4 weight MAX 1660Kg!!!!!!!!!!!!!!

Same engine, 30Kg MAX diference, something wrong with the 0-60 times?.

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once is for sure, they won't lie...remember, it's got a completly new construction, new gearbox etc...just look at the power/torque graph, 3.0 diesel's max power is available between 4000-4400rpm, and revs up to 5000rpm.. the torque of 500nm between 1500-3000rpm...

about the weight..1610 kg for 3.0TDI, and 1630kg for S5..those figures are from the german audi configurator...

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Or Audi are less conservative in their stats these days.

[/ QUOTE ]

Or maybe they're fed up of BMW overstating their power outputs and 0-60 times grin.gif

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I know BMW are buggers for this, the new 335i coupe is rated at 306bhp and 5.5 seconds to 60mph, but every car that goes on the rolling road is actually reading 330bhp+ and doing the sprint to 60mph in around 5 seconds. BMW never get their figures right! smile.gif

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[ QUOTE ]

[ QUOTE ]

[ QUOTE ]

Or Audi are less conservative in their stats these days.

[/ QUOTE ]

Or maybe they're fed up of BMW overstating their power outputs and 0-60 times grin.gif

[/ QUOTE ]

I know BMW are buggers for this, the new 335i coupe is rated at 306bhp and 5.5 seconds to 60mph, but every car that goes on the rolling road is actually reading 330bhp+ and doing the sprint to 60mph in around 5 seconds. BMW never get their figures right! smile.gif

[/ QUOTE ]

I agree this is the case for turbo cars. It's the same for Audi too. Turbo cars are very susceptible to air temp etc...

But BMW's N/A cars are usually overstated. Ask anyone who's been on a rolling road day with a BMW owner wink.gif 231BHP = 220BHP, 256BHP = 240BHP etc...

BTW I'm not anti BMW I think they're great motors and I've owned them in the past and probably will again 169144-ok.gif. It's just that they had a reputation for being a bit generous with power outputs. Whereas Audi were the other way round.

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[ QUOTE ]

once is for sure, they won't lie...remember, it's got a completly new construction, new gearbox etc...just look at the power/torque graph, 3.0 diesel's max power is available between 4000-4400rpm, and revs up to 5000rpm.. the torque of 500nm between 1500-3000rpm...

about the weight..1610 kg for 3.0TDI, and 1630kg for S5..those figures are from the german audi configurator...

[/ QUOTE ]

As vier_ringe says, the A5/S5 is available on the Audi.de configurator.

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[ QUOTE ]

I agree this is the case for turbo cars. It's the same for Audi too. Turbo cars are very susceptible to air temp etc...

But BMW's N/A cars are usually overstated. Ask anyone who's been on a rolling road day with a BMW owner wink.gif 231BHP = 220BHP, 256BHP = 240BHP etc...

BTW I'm not anti BMW I think they're great motors and I've owned them in the past and probably will again 169144-ok.gif. It's just that they had a reputation for being a bit generous with power outputs. Whereas Audi were the other way round.

[/ QUOTE ]

I would suggest that Audis (and others as well) are just as susceptible to under performance when it comes to N/A engines. However, the turbo engines are much closer to the money.

They may well free up a bit over time but there are some fair shortfalls there in some instances EEK2.GIF

RRI tests

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[ QUOTE ]

[ QUOTE ]

I agree this is the case for turbo cars. It's the same for Audi too. Turbo cars are very susceptible to air temp etc...

But BMW's N/A cars are usually overstated. Ask anyone who's been on a rolling road day with a BMW owner wink.gif 231BHP = 220BHP, 256BHP = 240BHP etc...

BTW I'm not anti BMW I think they're great motors and I've owned them in the past and probably will again 169144-ok.gif. It's just that they had a reputation for being a bit generous with power outputs. Whereas Audi were the other way round.

[/ QUOTE ]

I would suggest that Audis (and others as well) are just as susceptible to under performance when it comes to N/A engines. However, the turbo engines are much closer to the money.

They may well free up a bit over time but there are some fair shortfalls there in some instances EEK2.GIF

RRI tests

[/ QUOTE ]

They're all down on power there aren't they? All I know is that my N/A S4 is bang on the money (339HP) at 30k miles that's good enough for me 169144-ok.gif

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Comparing rolling roads is virtually impossible.

AMD's had a reputation for being high.

Perhaps RRI's is low

Perhaps the corrections used for weather humidity/etc is flawed.

You really can't take anything on these as fact....unfortunately. I believe manufacturers figures are allowed quick a big tolerance due to this.

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Yep. You can only really rely on rolling road results as a relative measure against other cars tested on the same RR.

Going back a bit, I always remember Prodrive saying there was a huge variance in output from standard UK Impreza Turbos that they saw through their shop. They'd always test before and after any upgrade work they did. Standard outputs used to vary from around 200bhp to 235+bhp - Subaru's official figure at the time was 208bhp.

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[ QUOTE ]

Comparing rolling roads is virtually impossible.

AMD's had a reputation for being high.

Perhaps RRI's is low

Perhaps the corrections used for weather humidity/etc is flawed.

You really can't take anything on these as fact....unfortunately. I believe manufacturers figures are allowed quick a big tolerance due to this.

[/ QUOTE ]

I would broadly agree, there does seem to be a fair variation between one and another. As a vaguely related example, some Focus ST owners did a RR recently and the std cars were allegedly coming up with 250-260 bhp (which sounds around 15-25 bhp too high to me). At the same RR, the tuned cars were well down on expected outputs - go figure confused.gif

However, at the same time, looking at the RRI website it does seem to be rather more than 2 men and an industrial unit (at least on the face of it) and the RR is a different design to usual - looks more technical at least.

Some of the figures look fairly close but, to pick on a couple of examples, the latest S6 is way beyond manufacturer tolerance and the 3.2 V6 from various iterations always seems to be a fair bit down (and matches evo test on MkV R32).

Still, at the end of the day it's not the end of the world and not absolutely central to what people are looking for, just interesting in some respects when looking at claims versus actual real world.

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