Facelift Managed to get on dyno briefly

[Ed_rx7]

Managed to get on a dyno briefly today..... didn’t get a print out unfortunately and phone ran out of charge

Car made 400.5 bhp at the fly on a DynoDynamics 4WD

Audi are spot on with their figures and so was the Dyno.



Just thought I would share

Car has done 1300 miles

 

[Rocketer]

Should be great to see if the PFL delivered 367 hp as Audi say on just that particilar dyno? Do you know if they have done any runs of the PFL?

 

[Evil Diesel]

What transmission loss was applied?

 

[Ed_rx7]

18 or 20% iirc

 

[Ed_rx7]

Should be great to see if the PFL delivered 367 hp as Audi say on just that particilar dyno? Do you know if they have done any runs of the PFL?

Not sure bud... didn’t get a chance was a quick on and off just but they did mention they tuned a facelift on a custom map and got 470

 

[Spinstorm]

Managed to get on a dyno briefly today..... didn’t get a print out unfortunately and phone ran out of charge

Car made 400.5 bhp at the fly on a DynoDynamics 4WD

Audi are spot on with their figures and so was the Dyno.



Just thought I would share

Car has done 1300 miles

Actually don’t want to be pedantic - I do actually

But Audi says 400PS - 394Bhp - so if its giving 400BHp then its above Audi numbers.

I know we all probably assume that 400bhp is more accurate anyway but technically that’s not the power Audi says it has.

 

[Ed_rx7]

I thought it was 395 actually....

 

[Evil Diesel]

When the engine loosens up a bit you should see a bit more. Lots of dynos are showing 420 - 440 assuming 20% loss. At the end of the day Audi are selling these cars as 400ps power so the worst one off the line should deliver this - you would think that the average is 5 - 10% higher at least.

 

[Ed_rx7]

Yes but we must remember dyno figures are pub talk.... to many variables and easy to make cars look like they make more power than they actually do...... plus some dynos read higher than others ... blah blah blah

So will always be a minefield

 

[AudiNutta]

Mine is going on one on Saturday if all goes well, I’m a little worried it won’t make the quoted figure with 900 miles on the clock but it goes like sh*t off a stick.

 

[Rocketer]

Yes but we must remember dyno figures are pub talk.... to many variables and easy to make cars look like they make more power than they actually do...... plus some dynos read higher than others ... blah blah blah

So will always be a minefield

Yes, but same dyno is a good start therefore some PFL has probably been measured if it isn’t a new shop? What was their name and maybe somebody from here has been there before?

 

[AudiNutta]

So I was hoping mine would have done a bit better, 950 miles on the clock.

395.9hp, Audi quote 394.3hp.

570nm of torque.

Will take it back after a few thousand to try again.

 

[Ed_rx7]

Thats good going dude.... remember dynos can be manipulated... plus some read higher than others so dont get caught up on the numbers.......you could take it to another dyno tomorrow and it could read 425.....lol


You should have be worried if it gave a reading of 297bhp....lol

 

[Ed_rx7]

any idea what make dyno it was?

 

[Beebee-one]

So I was hoping mine would have done a bit better, 950 miles on the clock.

395.9hp, Audi quote 394.3hp.

570nm of torque.

Will take it back after a few thousand to try again.

Well you can't grumble with that result. Power output is right on the money but your torque is way up on the stock 480nm. Dyno's can give different results on different days, you could go to the same place on Monday and find the figures are different.

 

[AudiNutta]

Thats good going dude.... remember dynos can be manipulated... plus some read higher than others so dont get caught up on the numbers.......you could take it to another dyno tomorrow and it could read 425.....lol


You should have be worried if it gave a reading of 297bhp....lol

any idea what make dyno it was?

Yeah I was initially worried at first it wouldn’t meet the spec, but now it’s achieved what it should I feel a little disappointed haha.

My S3 ran on this dyno and ran 336hp, rather than the quoted 306hp. This dyno seems to be a little cruel to people on times, like yesterday a 750hp mapped RS6 came out at 730hp and the guy was gutted apparently.

The specs of it are: Dynocom Industries AWD 5000

I went out of my way to a certain Shell garage. The company who ran it said that most V Power is in retro-fitted fuel tanks in old stations so there is an additive added at the pump. The station I used he said it true V Power and is delivered as V Power. Their expert with remapping said he can see a change of pattern between stations on the maps. The station I used was different to my regular and different to that the S3 ran on.

 

[AudiNutta]

Well you can't grumble with that result. Power output is right on the money but your torque is way up on the stock 480nm. Dyno's can give different results on different days, you could go to the same place on Monday and find the figures are different.

It is pretty bang on, but I guess just part of me was hoping it would over achieve.

Do you think it is possible the torque is much higher or do you think it was an anomaly? The car ran 3 runs and I had the printout from the third which they took it right to the top of the rev range unlike on the first two. I didn’t think to ask of the other two runs at the time, I was too overwhelmed by the noise my car had just made.

 

[AudiNutta]

Here is the video, once it has processed....

 

[Beebee-one]

It is pretty bang on, but I guess just part of me was hoping it would over achieve.

Do you think it is possible the torque is much higher or do you think it was an anomaly? The car ran 3 runs and I had the printout from the third which they took it right to the top of the rev range unlike on the first two. I didn’t think to ask of the other two runs at the time, I was too overwhelmed by the noise my car had just made.

Dont get too hung up on dyno numbers, they are good as a comparison if you have a bunch of cars all running the same day as a dyno shootout session for example. Your torque figure does look a tad optimistic, but it could have been a spike (can you post up the dyno printout?)
Better to have a nice flat torque plot which comes in as early as possible and spreads across the rev range.

 

[AudiNutta]

Dont get too hung up on dyno numbers, they are good as a comparison if you have a bunch of cars all running the same day as a dyno shootout session for example. Your torque figure does look a tad optimistic, but it could have been a spike (can you post up the dyno printout?)
Better to have a nice flat torque plot which comes in as early as possible and spreads across the rev range.

Apologies for quality but they laminated the printout so getting a good photo is tricky.

Sent from my iPhone using Tapatalk

 

[D0C]

Love seeing/hearing a car on a dyno! Will be interesting to see what it does with a few more miles under its belt.

 

[Phil3]

Random one here... your rear numberplate surround, is it an Audi Sport one? and if so, did it come with the car? or bought yourself?

 

[AudiNutta]

Love seeing/hearing a car on a dyno! Will be interesting to see what it does with a few more miles under its belt.

It did put a huge smile on my face. I was a little nervous about it being drown out by the dyno, having heard a modified 8P on there first... mine blew that out of the water sound wise, much raspier.

I suggested 3000 miles and they agreed, so will wait until between 3000 and 4000, then take it back.

 

[AudiNutta]

Random one here... your rear numberplate surround, is it an Audi Sport one? and if so, did it come with the car? or bought yourself?

Yes correct, you can buy them genuine off of eBay for just over a tenner.

The Mrs’ got me them.

 

[DW81]

It did put a huge smile on my face. I was a little nervous about it being drown out by the dyno, having heard a modified 8P on there first... mine blew that out of the water sound wise, much raspier.

I suggested 3000 miles and they agreed, so will wait until between 3000 and 4000, then take it back.

Certainly had a few spectators there mate

 

[AudiNutta]

I’ve just looked at my figures again.

Now I’ve gone a mapped PFL ran 446hp, his wheel horsepower came out at 350hp.

My car ran 395hp, the wheel horsepower was 260hp... suggesting a 140hp loss give or take for drivetrain?!?

He had 50hp more at the flywheel but 90hp more at the wheels. Surely they messed something up there on mine? I may pop back Tuesday if that’s the opinion I get from here and ask for an explanation.

I can recall my S3 ran 336hp at the fly, 260hp wheels......

 

[AudiNutta]

Certainly had a few spectators there mate

It was an opening day for the company, new unit... loads of people went, they ran cars on the dyno from 10:00 to 18:30.

 

[DW81]

I’ve just looked at my figures again.

Now I’ve gone a mapped PFL ran 446hp, his wheel horsepower came out at 350hp.

My car ran 395hp, the wheel horsepower was 260hp... suggesting a 140hp loss give or take for drivetrain?!?

He had 50hp more at the flywheel but 90hp more at the wheels. Surely they messed something up there on mine? I may pop back Tuesday if that’s the opinion I get from here and ask for an explanation.

I can recall my S3 ran 336hp at the fly, 260hp wheels......

Don’t worry to much about it go out enjoy the car then pop back in a few months time when you have put more miles on it

 

[Evil Diesel]

I’ve just looked at my figures again.

Now I’ve gone a mapped PFL ran 446hp, his wheel horsepower came out at 350hp.

My car ran 395hp, the wheel horsepower was 260hp... suggesting a 140hp loss give or take for drivetrain?!?

He had 50hp more at the flywheel but 90hp more at the wheels. Surely they messed something up there on mine? I may pop back Tuesday if that’s the opinion I get from here and ask for an explanation.

I can recall my S3 ran 336hp at the fly, 260hp wheels......

They have set this thing up wrong. 260 at the wheels suggests 325 at the fly max. It will be the dyno settings that are off.

 

[Ed_rx7]

Those wheel figures don’t sound right. 20-% trans loss is around 315 whp

 

[Leo-RS]

Do not waste your time nor get concerned about dyno numbers as you can go around chasing your tail looking for issues that just do not exist.

How tight the straps are, how high the tyre pressures are, how the operator has run the car during the run, there are far too many variables.

As for the figures, that will be down to you granny driving it yesterday thinking you were driving an A3 diesel what was it 37mpg?

Forget the wheel figures, something amiss there, your car will be losing about 60hp from fly to wheels. I gave up on dyno figures years ago and invested in a vbox, best money I’ve ever spent and probably saved me hundreds if not thousands chasing dyno numbers. Vbox chases tenths of seconds and this way you can reliably monitor the performance of your car far better than any dyno will ever tell you.

 

[Leo-RS]

New gen haldex cars btw should be around the 15% transmission loss mark. The 20% figure is outdated and comes from fixed 4wd systems or older type awd systems. Evos/Imprezas etc.

I’d expect a figure around 340 @ wheels from a 400ps car. I’m pretty sure MRC have a couple of standard graphs somewhere.

Yep, found one...

 

[AudiNutta]

They have set this thing up wrong. 260 at the wheels suggests 325 at the fly max. It will be the dyno settings that are off.

Pretty much spot on there, my S3 was around 260hp at the wheels (don’t have it on paper), with 336hp at the fly.

But the RS3 that ran after was about right, so whatever they did when they run the car up to speed to work out transmission losses must have been off.

 

[AudiNutta]

Do not waste your time nor get concerned about dyno numbers as you can go around chasing your tail looking for issues that just do not exist.

How tight the straps are, how high the tyre pressures are, how the operator has run the car during the run, there are far too many variables.

As for the figures, that will be down to you granny driving it yesterday thinking you were driving an A3 diesel what was it 37mpg?

Forget the wheel figures, something amiss there, your car will be losing about 60hp from fly to wheels. I gave up on dyno figures years ago and invested in a vbox, best money I’ve ever spent and probably saved me hundreds if not thousands chasing dyno numbers. Vbox chases tenths of seconds and this way you can reliably monitor the performance of your car far better than any dyno will ever tell you.

I took it on a 300 mile round trip on the motorway haha, it returned 32.6MPG.

Well the flywheel figures seem to be about right so I will just leave it now and go back in a few months, take my old graph and show them so it doesn’t happen again.

Because I’m not mapping, a Vbox would be wasted on me.

 

[AudiNutta]

New gen haldex cars btw should be around the 15% transmission loss mark. The 20% figure is outdated and comes from fixed 4wd systems or older type awd systems. Evos/Imprezas etc.

I’d expect a figure around 340 @ wheels from a 400ps car. I’m pretty sure MRC have a couple of standard graphs somewhere.

Yep, found one...

View attachment 143047

Well that’s pretty good there to compare to mine, bhp is pretty much bang on and the torque is nearly as high as mine.

I did have a shock when I saw 140hp transmission losses.

 

[Rocketer]

Still waiting for some numbers from the PFL cars which has been on the market over 2 years already or are these tuners all new ones with no other RS3 from the past? These fiddling with explanations here and there isn’t better than different cars are measured on the same dyno. If the FL is so much faster than PFL it should be putting down better figueres than these or don’t you agree?

 

[Tristan2]

Yes correct, you can buy them genuine off of eBay for just over a tenner.

The Mrs’ got me them.

Have you got a link please mate?

 

[AudiNutta]

Have you got a link please mate?

Here you go bud

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/172388029015

 

[Leo-RS]

Still waiting for some numbers from the PFL cars which has been on the market over 2 years already or are these tuners all new ones with no other RS3 from the past? These fiddling with explanations here and there isn’t better than different cars are measured on the same dyno. If the FL is so much faster than PFL it should be putting down better figueres than these or don’t you agree?

No, even dyno days are pretty poor at producing repetitive figures with the same cars. Car A may have had a 10 min commute to the dyno, car A is not heatsoaked and is ready to produce good figures on the dyno. Car B travels 150m ragging the nuts off the car on his way there and is severely heat soaked, goes onto the dyno and produces poorer figures. Then all the variations inbetween. Car A has 40psi in his tyres, Car B 30psi, car A is strapped down a little tighter than Car B. Car A is run for about 30secs on the dyno to red line, Car B, a full minute.

Lost all faith in car dynos many years ago, I used to go from dyno to dyno chasing bhp and questioning tuners and dyno operators and just ended up going round and round in circles. One tuner tells you you have a faulty recirc valve, another tells you you have a small boost leak, gets pretty expensive chasing horsepower figures.

Also 400ps in a facelift may not be the same as 400ps in a pre facelift. 400 peak yes, but measure the values all the way through the Rev range to compare, facelift may have 380ps at 5500, pre facelift may have only 360ps at 5500, both have 400ps at 6800 tho. The car with the most horsepower through every rpm measure will be quicker even though both cars may have the same peak horsepower figure. Same obviously applies with torque, the greater the spread of peak torque, the quicker the car will be, even if both have same peak torque figures.

Best just buying a vbox (performance box) that way you can track exactly what your car is doing throughout its life, whether it’s losing power or gaining power and what effect those mods have on your car. As long as you run your car in the same conditions and the same bit of road/runway then results are more consistent.

Or you could just go from dyno to dyno going around in circles.

 

[Terminator x]

Still waiting for some numbers from the PFL cars which has been on the market over 2 years already or are these tuners all new ones with no other RS3 from the past? These fiddling with explanations here and there isn’t better than different cars are measured on the same dyno. If the FL is so much faster than PFL it should be putting down better figueres than these or don’t you agree?

Tbf although power between the two is almost identical the FL does seem to be running with a lot more torque as standard.

TX.

Sent from my STV100-4 using Tapatalk