APR Tune - 162TSI - worth every $$

[tigger73]

Of course, 1/4 and 0-100 km/h doesn't lie.

Not all 0-100 and 1/4 mile timers are built equal either. There's some that run off the OBD port and sample ECU speed but these can be out by a few tenths.

But what infuriates me is when Revo is saying their tune can take a car to 235~245kW, come on we know the stock turbo can't even physically flow that much air.

These are claimed crank figures. Nobody can verify them - not even the tuner!!!

[Dose Pipe Sutututu]

Not all 0-100 and 1/4 mile timers are built equal either. There's some that run off the OBD port and sample ECU speed but these can be out by a few tenths.

Drag strip, controlled environment (kinda) proper timing

These are claimed crank figures. Nobody can verify them - not even the tuner!!!

Let's use your results as an example, 162kW motor, 140kW output (rougly). That equates to a 15% drivetrain loss (not bad for AWD).
So.. if Revo or APR or any flash jobby say claims 235kW at the motor, that should equate to 200kW at the wheels

Now that's literally bs fairy numbers.

[tigger73]

Drag strip, controlled environment (kinda) proper timing

Let's use your results as an example, 162kW motor, 140kW output (rougly). That equates to a 15% drivetrain loss (not bad for AWD).
So.. if Revo or APR or any flash jobby say claims 235kW at the motor, that should equate to 200kW at the wheels

Now that's literally bs fairy numbers.

Read my post above with the dyno charts. A stock 155TSI with same drivetrain runs 120kwaw. Drivetrain loss on the DQ500 + AWD is around 25%

So 162TSI with 141kwaw is really pushing out closer to 185kw at the crank. That’s why I was calling BS with VW numbers.

I actually suspect my Tig is running the 180kw tune in it similar to the Golf GTI performance.




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[Dose Pipe Sutututu]

Read my post above with the dyno charts. A stock 155TSI with same drivetrain runs 120kwaw. Drivetrain loss on the DQ500 + AWD is around 25%

So 162TSI with 141kwaw is really pushing out closer to 185kw at the crank. That’s why I was calling BS with VW numbers.

I actually suspect my Tig is running the 180kw tune in it similar to the Golf GTI performance.

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Hopefully someone with the right software can fully send all the power to the fron wheels and disengage the Haldex so there is less drivetrain loss and do a pull in pure FWD.

Nissan days you just simply pull the fuse for the ATESSA system (R32 GT-R only) OR drop the front prop shaft for all other GT-Rs
EVOs are a bit trickier, you needed to lock the centre diff as they're viscous.

I might get the car past 10000 clicks and flash it, like you said if it can last that long there's a chance it's not going to go bang anytime soon.

[Psych101]

Read my post above with the dyno charts. A stock 155TSI with same drivetrain runs 120kwaw. Drivetrain loss on the DQ500 + AWD is around 25%

So 162TSI with 141kwaw is really pushing out closer to 185kw at the crank. That’s why I was calling BS with VW numbers.

I actually suspect my Tig is running the 180kw tune in it similar to the Golf GTI performance.




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Wouldn't it be illegal for a manufacturer to make false claims about engine output and what incentive would they have to claim the product produces less power than it actually does?

[tigger73]

Wouldn't it be illegal for a manufacturer to make false claims about engine output and what incentive would they have to claim the product produces less power than it actually does?

VW regularly underquotes power figures. It’s only a problem if they quote a figure and it’s proven to be less that what was sold. Same as if you went to the shop and bought 1kg of apples and you got 1.1kg there’s no problem as you got more than what you paid for.


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[Psych101]

VW regularly underquotes power figures. It’s only a problem if they quote a figure and it’s proven to be less that what was sold. Same as if you went to the shop and bought 1kg of apples and you got 1.1kg there’s no problem as you got more than what you paid for.


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18kw is a significant margin. I'm sure their marketing guys would want to cut it finer than that

[Sharkie]

18kw is a significant margin. I'm sure their marketing guys would want to cut it finer than that

Not really, my (supposedly) 118kw 2.0TSI Amarok makes close to 140kw stock as tested on a hub dyno. That's almost a 22kw margin. Though with a tune its now just over 200kw ....

[Sydneykid]

Let's use your results as an example, 162kW motor, 140kW output (rougly). That equates to a 15% drivetrain loss (not bad for AWD).
So.. if Revo or APR or any flash jobby say claims 235kW at the motor, that should equate to 200kW at the wheels.

Always good for a healthy discussion

So with the standard engine it "loses" 22kw but with the tuned engine it "loses" 35kw. Same gearbox, same diff, same drive shafts etc. So where does the extra 13kw go? It just disappears? Magically? Some guy called Newton (remember High School Physics) worked out that energy can be neither gained or lost, but it can be transformed into other types of energy. So what is the extra 13 kw transformed into? Heat, I don't think so, stand in front of 13 x 1kw heaters, that's how much extra heat we would be be talking about.

There is some logic is taking the constant kw loss, not a %. So 235kw on the engine dyno should be (235 - 22 =) 213kw on the rollers.

FWIW using a hub dyno results is less "loses" due to absence of tyre and roller friction, so I always expect to see a higher number on the hub dyno that what I see on the roller dyno (for the same engine output).


Cheers
Gary

[tigger73]

18kw is a significant margin. I'm sure their marketing guys would want to cut it finer than that

I’m only reporting what I’ve see on the dyno and to be honest I was quite surprised myself.

I was expecting low-mid 120’s. But I’ll take 141!!

Really I think it’s so Audi customers don’t get their noses out of joint and also it allows the marketing people to claim a new engine output when they need to prop up flagging sales figures.

At the moment they can’t get enough cars so no point advertising that it has 180kw. They’ll leave the “new“ engine for the mid-life update.


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