S6 Drag Radial Launch Video

[Vol 4.0T]

s6

[ryanhmusic]

Here's a video I took yesterday of my S6 launching with the drag radials at the factory 5K RPM LC setting:

https://www.youtube.com/watch?v=F9hPJ9NpAlM

Still spins on the launch even with the drag radials. The combination of wheel spin AND the computer then short shifting the 1-2 creating a bog is what kills these S-Tronic cars in the 1/4 mile. It doesn't matter if you try manual mode too, because it's still fooled into thinking you've reached a certain engine RPM due to the wheel spin and will short shift every time. The simple fix would be to buy the APR TCU for $1K and use a lower RPM LC setting but that's no fun.

The A8/S8/RS7 has a huge advantage in drag racing because the ZF automatic trans with torque converter applies power much smoother out of the hole than the S-Tronic's twin disc which is just dumping the clutch at 5K, not much different than dumping it yourself on a manual trans car.

I'm hoping with some tire pressure, suspension and sport differential tweaks at the strip I can make this work but so far on the street I'm not impressed. Still did 0-60 in around 3 and 0-100 in mid 7's.

can't keep your hands to yourself?

[hubris]

Interesting, thanks for sharing. Which DRs? What mode was the suspension in? I have seen avid 1/4 mile RS7 racers on here discuss using comfort suspension mode for better results.

[sciblades]

You can release the launch control on the upswing, you don't have to wait till 5k.

Which nitto tire?

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[F16HTON]

I always launched our S6 on the upswing, Tracee got pretty good at it too. I have found the best way to reduce the wheel spin is to lower the air pressure to 26-28psi rear and 31-33 in the front.

If you do lower the air pressure, make sure to set it back to specs immediately before driving on the road.

[markreed]

I always launched our S6 on the upswing, Tracee got pretty good at it too. I have found the best way to reduce the wheel spin is to lower the air pressure to 26-28psi rear and 31-33 in the front.

If you do lower the air pressure, make sure to set it back to specs immediately before driving on the road.

Is that with DRs or street tires?

[F16HTON]

Is that with DRs or street tires?

Pilot super sports...

Drag radials will not make that much of a difference, as you are not going to be able to heat them up to get sticky.


Also, for anyone who watched the video, it is not a good idea to launch your car with less than 1/4 tank. You can cause damage to the fuel pump from starvation.

[gk1]

Drag radials will not make that much of a difference, as you are not going to be able to heat them up to get sticky.

2nd...drag radials need a lot of heat or very sticky track to be truly useful.

[DrBeerMD]

Put some fuel in that thing. Talk about fuel starvation

[agent47]

I bet there is some *highly technical* explanation behind that fuel level being so low.

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[sciblades]

Did you watch the video? I launched it on the upswing just as it was approaching 5K RPMs.

Nitto drag radials.

Nt 555r
OR
Nt 05r

I watched the video, keep practicing.

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[sciblades]

Not on a modern car like the S6 or RS7. The computer will never let you starve the pump, even on a road course which is about the only time you could run into fuel starvation issues anyway. You're not going to have that problem in a straight line. Trust me, I've been racing cars for a long time.

This is not true and the main reason efi upgraded his fuel system.

Also you do realise you are trying to tell eurocofe they don't know what they are talking about.

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[Dguth]

I just put brand new Yokos on my car. 265/35/20. Did two launches back to back at the 5k rpm launch. Absolutely zero wheel spin. This was on the APR 1.1 tune.


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[sciblades]

Keep practicing why? There isn't much to driving an AWD car with an automated dual clutch trans in a straight line. I feel like catching it on the upswing if anything is just going to cause more wheel spin.

Your wheelspin is proving launching a awd car is easy.

Take my and eurocode's advice we have actually tracked our cars.

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[sciblades]

You are hopeless, good luck troll.

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[Dguth]

Because you may not be making the same power as me. The next time you launch it tell me where your RPMs drop just after the clutch is dumped at 5K. I bet your RPMs drop a lot more than mine. Also, take a video of the speedo so we can compare acceleration times. Not exactly scientific but it can be somewhat comparable if you do yours on a flat road.

What other power mods do you have on your car right now? You running stage 2 software or upgraded turbos yet? I'm almost complete getting all my stuff in but install won't be for another week or so.


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[F16HTON]

This is not true and the main reason efi upgraded his fuel system.

Also you do realize you are trying to tell eurocode they don't know what they are talking about.

*disclaimer* I am not Eurocode, however I am good friends with them and have a pretty close relationship.

There is no point in continuing dialogue with the OP. I tried to give him the benefit of the doubt by stating that he had a quarter of a tank in the car (political correctness) when in reality he has about 2 gallons max (shows 25 miles range).

It only takes a few moments for the in-tank pump to get damaged if it runs dry without fuel, therefore for those who are reading this, the 19 pounds of weight that you save (3 gallons @ 6.3 pounds per gallon) by running your tank down could cost you greatly.

Tracee and I have quite a bit of experience with the S6 and ran it in the QM quite often.

If you want to get faster, improve as a driver. The biggest gains you will find (albeit they are rathe small) will come from adjusting air pressure, icing down the charge cooler between runs and driving straight down the track.

[F16HTON]

I never said it was easy. But "practicing" like you said isn't going to do anything. Practicing would be on a car like a Viper where launch technique and experience is key. So I think I have a little bit more experience here than you and Eurocode. Have you or Eurocode ever gone single digits in a car? No, I didn't think so. My stock turbo GTR ran 9.8@141. So stop thinking you're all big and bad just because you launched your S6 at every stoplight showing off to the rest of the trust fund kids and eventually exceeded the 200 limit. You don't know jack.

*disclaimer* I am not Eurocode, however I am good friends with them and have a pretty close relationship.

So, if you want to classify me as Eurocode so be it. Yes, I personally have been single digits in a car, many times. My best time ever is 5.98 @ 233 MPH (the only time I ever made a full pass)

Didn't have launch control or any fancy electronics, had to use a clutch pedal off the line and air shifted into second and third.

Granted to say, this is pretty slow by today's standards, but was the best we could obtain with a BAE equipped Keith Black Hemi back in the 90s

[ryanhmusic]

My best time ever is 5.98 @ 233 MPH (the only time I ever made a full pass). Granted to say, this is pretty slow by today's standards, but was the best we could obtain with a BAE equipped Keith Black Hemi back in the 90s

holy shit that's quick.

[Brooklyn]

Now he has a sub-10 second GTR to go with his matrix headlight S6!

[agent47]

Now he has a sub-10 second GTR to go with his matrix headlight S6!

It was the RS7. He also has an s8.

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[LW3]

This is setting up for an epic drag race battle between VOL and Sciblades. If Vol wins, he gets to continue to contribute on the forums with his enlightening posts. If Sciblades wins, Vol has to agree to permanently ban himself from the forum.

[LW3]

Vol, you posted over the weekend that you wrecked your car? Was this video before that?

[S6Express]

I love these threads!

[F16HTON]

You're obviously not too familiar with the S6 or else you'd know you have approximately 2.5 gallons left even when the distance to empty is showing 0. This is why APR purposely tunes their 100 tunes for a 93/100 mix, because they know people are not likely to properly evacuate all pump gas out before putting in race fuel and switching maps. So they run it down close to 0 and end up with a 100/93 mix because they fail to realize how many gallons of fuel still remain even when you're on 0.

I'm open to tips and discussion and have no issues with your posts but don't like sciblades thinking he knows everything about drag racing because mommy and daddy bought him a $110K RS7 which my grandmother could run down the track with her pinky finger. Him making the comment that I should take his advice because he and Eurocode have "tracked" their cars was foolish considering I've gone way faster in multiple cars than he has in his RS7.

As for the fuel pump sucking air, it's not going to happen in a straight line and even if it could happen in a straight line, the electronics would not allow it. Modern cars like the S6 and RS7 will kill the engine and not allow a restart long before you have to chance to starve the pump. The S6 won't even let you engage LC if you're too low on fuel. Trust me, I know what I'm doing here. Been racing Audis alone for a long long time.

I'm very familiar, I owned the car for three full years before turning the lease back in. When ours hit zero, it was pretty much zero (maybe 5-10 miles if we were lucky). The launch control and wheel spin are not the reasons that the ZF 8 Speed performs better in the QM, you may want to consider the gear ratios to include the final drive with each of the transmissions.

Page 11 of this link compares the S7 and RS7 transmission gear ratios side by side.

With the ZF tip, you have a much shorter first gear (albeit a taller final drive) which equates to better traction with equal or greater power. Tire diameter does also come into play, however it is pretty similar between the S6&7/RS7.

With the RS7 you do not achieve a 1:1 gear ratio until 6th gear vs 4th gear in the S6/S7. Lower gear ratios are a torque multiplier, the RS7 essentially is able to use more engine torque down low than the S6/S7.

Because of this gearing, we see a Stage III S6 have a ET of .2 to .3 seconds slower than the RS7, with a very similar MPH, to overcome this gearing difference, more horsies are going to be required

[GTS21]

Vol 4.0T getting schooled!! I guess he's not as smart as he thinks.....

[Brooklyn]

ahhh, he has the elusive GTRS78!

It was the RS7. He also has an s8.

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[F16HTON]

Vol 4.0T getting schooled!! I guess he's not as smart as he thinks.....

Let's not try to argue with him, since he has an S6 and is wiling to contribute; encourage positive posts.

Just like with the S4/S5 DSG, I have always felt that the gear ratios were the handicap from making better quarter mile times.

[agent47]

ahhh, he has the elusive GTRS78!

Dont forget the supras and gallardos that he has or does possess.

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[sciblades]

You're obviously not too familiar with the S6 or else you'd know you have approximately 2.5 gallons left even when the distance to empty is showing 0. This is why APR purposely tunes their 100 tunes for a 93/100 mix, because they know people are not likely to properly evacuate all pump gas out before putting in race fuel and switching maps. So they run it down close to 0 and end up with a 100/93 mix because they fail to realize how many gallons of fuel still remain even when you're on 0.

I'm open to tips and discussion and have no issues with your posts but don't like sciblades thinking he knows everything about drag racing because mommy and daddy bought him a $110K RS7 which my grandmother could run down the track with her pinky finger. Him making the comment that I should take his advice because he and Eurocode have "tracked" their cars was foolish considering I've gone way faster in multiple cars than he has in his RS7.

As for the fuel pump sucking air, it's not going to happen in a straight line and even if it could happen in a straight line, the electronics would not allow it. Modern cars like the S6 and RS7 will kill the engine and not allow a restart long before you have to chance to starve the pump. The S6 won't even let you engage LC if you're too low on fuel. Trust me, I know what I'm doing here. Been racing Audis alone for a long long time. And like I said, it's not 19lbs. The difference between a full tank (20 gallons) and 1/4 of tank is close to 100lbs.

Vol, you are beyond help, we all try to give you information to actually help you run better and then you take this high and mighty tone, you have not tracked your car. You still don't understand the mechanical differences between the rs7 and s6.

The s6 I had for 3 1/2 years and tracked considerably I am aware of how to make it stick as I used to hit 1.6 60' with larger turbos. The rs7 I hit 1.5 60' foot with pzeros, this is not gloating just trying to help you with your issues.

You like some on this board just love to argue. That is fine you own a high milage s6, I own a rs7, frankly Im sure I work much harder than you do because the amount you are able to post on the Internet indicates you don't work too often.

The issue with vol is he feeds the community with mis information and when someone is trying to actually learn he is giving his unqualified opinion.



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[sciblades]

I don't disagree with you about the shorter 1st gear ratio being a factor too but that's not the only reason. Don't forget that since the RS7 is a true slushbox with a converter, it's not able to launch anywhere near the 5K RPMs that the factory launch control in the S6/7 launches at so that negates some of the torque multiplication gain the RS7 has from the shorter 1st gain. The RS7 is limited to its stall speed (or slightly under it as limited by the TCU) of approx. 2800 RPMs whereas the S6's LC is set to 5000 RPMs. You're also going to have much smoother power on launches with a true automatic transmission with a torque converter vs a manual transmission with a clutch which is essentially what the S6 uses for a trans albeit electronically controlled. There's a reason why the vast majority of drag cars seen at any dragstrip are automatic. It's because they launch smoother without shocking the driveline, are more consistent and the better overall option for drag racing versus manuals.

I've been telling people for a long time that the best 4.0T platform is the A8 with the short wheelbase. Uses the same ZF trans as the RS7 but with an even shorter final drive (although more or less offset by slightly taller tires), a better liquid to air intercooler setup than the S6 and is more aerodynamic than both the S6 and RS7. All that for low to mid $30's used. I believe that's the best bang for your buck 4.0T platform but you rarely see anyone doing anything with one of those.

This proves my point, please let the community know where the shift point is for an a8 4.0t.

When you tell them then you can explain why they run 12s.

Please tell the community who can tune a zf transmission to change the shift points.

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[F16HTON]

I don't see a 10.99 on stock turbos happening...if you can pull it off, kudos to you.

My wife weighs just over 100 pounds and has trapped a best of 121. All of her 60ft times are in the low 1.6s

[sciblades]

Vol you are an Internet troll, you probably bought your mother a house and your father a sports team.

My llc owns my car, I own the llc works better for taxes, but being this giant business mogel that drives every exotic car I manageable im sure you will school us all on tax law now too.

BE HONEST ARE YOU DONALD TRUMP?

There are a8 time slips on my Instagram, please let the community know the mtm dealer in the United States. Also let them know the cost of a zf flash.

Vol run your car, not your mouth post a slip. I'm going back to the original I will not respond to you till you have a record slip.

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[F16HTON]

Then you must not be as familiar with these cars as you think. APR ran 11.0 with stock turbos and it was in a heavier S7, although we're unsure if they used their 110lb driver mod or not. They were also launching at only 3000-3500 RPMs on regular street tires. I'll be on drag radials and coming out of the hole harder hopefully. I guess we shall see.

You said "stock turbos and stock downpipes/cats". I know the Stage II is capable of 10's especially on a track/conditions that is more favorable than what APR tested at.

I just do not see it happening without downpipes and the programming.

My goal is to run 10's with the stock turbos and stock downpipes/cats.

We were able to get a best of 520WHP (dynapack) and 585WTQ (dynapack) with stock turbos/downpipe/cats. Stage II (downpipes & cats) is capable of much more power (+30WHP and +85 TQ) and the torque delivery is much more linear.

There are many areas in the charge cooling system that can be improved, especially the intake manifolds, but you would need tuner support to iron out the programming.

This motor has a shitload of potential, it is just going to take the right motivation ($$) to make it happen.

[sciblades]

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[F16HTON]

Fair enough. Only thing we may disagree on is the downpipes. I don't believe upgrading them and/or the cats results in appreciable gains. The gains you just referenced is from the more aggressive software. Tune only RS7s have gone 10.4@133 through the stock DPs/cats. Also, Unitronic ran 11.4@121 with an aggressive tune and stock downpipes/cats on their S6 and APR ran essentially the same thing in very similar DA but with their own DPs and aggressive tune. Only real difference between the two cars being the downpipes/cats. And Unitronic also has dyno sheets showing the downpipes, high flow cats, and catback are only good for 9 HP vs their tune only. It's because their tune only was already aggressive so the comparison between their tune only and their Stage 2 package with DPs/catback is more of an apples to apples comparison than comparing APR's stage 1 software to their stage 2 package since that's comparing much weaker software in the Stage 1 versus more aggressive software in the stage 2. It doesn't accurately show what the downpipes' gains are because the software in stage 1 and stage 2 is very very different. If you ask APR for a graph of the boost in stage 1 and stage 2 they will not provide it, just like they won't publish any data on their downpipes vs stock (backpressure, exhaust gas temps, etc). The stock downpipes and cats are very very good. Even Spero and Nikko know this from years ago when with DP/cat mods they didn't really go any faster at all. I can dig out the posts if need be. So anyway, that's why I think I can go 10's with the stock downpipes... They're just not a restriction at these power levels.

I'm pretty confident Tracee has some copies of Nikko's timeslips with 60 foots in the 1.6X range. It has been some time however so I'll see if she can dig them up. All of our timeslips turned black from heat so hey are worthless now.

Our testing, prior to any stage II software release with identical APR files, resulted in the 4.0T with stock downpipes/cats to make less power and be slower than the motor with upgraded downpipes that did not have cats. There was never a scenario when we tested the two cars in which the car with stock cats made more power or was faster in acceleration. (in layman's terms, we were gapped every time we raced)

This was independent testing outside of APR and had nothing to do with them.

I would not say this if I was not 100% confident that the upgraded downpipes make more power than the S6 is capable of with stock downpipes/cats.

I applaud your efforts for wanting to hit 10's with stock downpipes/cats and would be very amazed if it happens.

[F16HTON]

1.774 is the average 60ft of all times posted (20 cars, to include Nikko's outlier of a 1.896 60 ft)

If you hit anything 1.6X (which is typically 1.65 to 1.69) you are doing much better than average. This includes S6, S7 and RS7.

You keep beating up Nikko on his one published time slip, but until you better it, be a little more respectful. You do not even know if that is Nikko's best time. We posted only one stock time slip and one stage I time slip, however our car made hundreds of timed passes.

[Chris Morales]

Just to go on the record on a few points - Vol, you mean the S8 (not A8) is the best 4.0T platform, right?

S8 shifts at 6400. That's a significant increment over the 6000 shift point for the A8.

My S8 weighed 4580 with nearly 1/2 tank of fuel when it ran 10.95@126. Only weight reduction is removal of spare. I don't know if that really is all that much heavier than the actual weights of the other 4.0T cars. Call them all boats.

[GTS21]

Lol. Now I'm convinced Vol 4.0T knows nothing!! His mommy and daddy spring for his S6, and he doesn't know how to use it! Sad.

[BlueSVT]

You're obviously not too familiar with the S6 or else you'd know you have approximately 2.5 gallons left even when the distance to empty is showing 0.

Negative, ghost rider.

I've hit zero before fueling mine, and was able to put 18.9 gallons in... which means there's about a gallon left, maybe 1.2 if you include the filler neck, etc. More theories you spew as fact, when you're completely wrong.