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View Full Version : New best 1/4 mile ET for my '03 RS6: 11.8 @ 117!



10SecS4
March 14th, 2009, 18:11
As some of you know, I've been street tuning my RS6 for the past 8 months. Along the way I've tried out all kinds of new things and different combinations trying to see which yield the quickest acceleration and most horsepower. After 37 different file revisions, I was finally content with a couple of my latest files, so I decided to run the car last night at Island Dragway to see what she could do. Island Dragway (http://www.islanddragway.com/) is an NHRA quarter mile dragstrip in Great Meadows, NJ.

My best pass of the night on straight 93 octane pump fuel was 12.0@113. I then added 3 gallons of 104 octane, uploaded my race tune and ran 11.84@116.76 (http://titsup-racing.com/video/rs6/rs6.htm) which was then backed up with a 11.86@116.22 (http://titsup-racing.com/video/rs6/rs6_11_8.wmv). I was pretty happy with these numbers to say the least!

My race weight with me in it was 4357lbs. That included my helmet, laptop, misc. tools (just in case), and a few other items. I did, however, remove the small inflatable, donut sized spare and portable air compressor. I believe both of those combine to weigh somewhere around 50lbs.

Here's the link to the timeslips:

RS6 11 Second Timeslips (http://titsup-racing.com/video/rs6/rs6.htm)

And here's the link to the video that my friend Mike with the 9 second Evo shot:

RS6 11 Second Video (http://titsup-racing.com/video/rs6/rs6_11_8.wmv)

As far as I know, this is the quickest and fastest RS6 in North America. What's funny about that is my RS6 has only two modifications! It would be really easy for anyone to replicate these mods and go just as fast. Neither of these mods are all that expensive either, so you too can go 11's on a budget. ;) With RS6s selling for as little as $15K to $20K on the net these days, I really think it's the best overall car out there in terms of luxury, performance, value, etc.

The only mods I have are:

Gutted out pre-catalysts
Custom tuned ECM/TCM.

Boost is a solid 11.5 to 12.0psi to redline. A lot of tuners run 1 bar of boost or more, but I found through lots of back to back, A-B A-B testing that the car is actually faster with less boost and more timing. My TCM software makes for quicker, firmer shifts while retaining the factory's DSP (Dynamic Shift Programming).

My RS6 currently has 94K miles on it, the last 8K of which have been HARD miles, including hundreds of WOT runs and it has been 100% reliable (knock on wood). I have not had a single problem with it and the transmission and torque converter are all original and untouched. I see about 2-3 more miles per gallon with my tune than I do with the factory calibration. Last night on the way back from the track I averaged 23.3 MPG on the highway.

If anyone has any questions about my RS6 or about the custom tuning that I offer for the RS6, please feel free to e-mail me at marc@10seconds4.com. :rs6kiss:

__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

V8weight
March 14th, 2009, 23:24
What happened to your thread on Audizine? I have a few questions. Did you remove your own precats? Were you able to remove the downpipes without removing the engine/ transmission? If you were to tune my car would you need the whole car or just the ECU/ TCU? I have to admit, you have my full attention.

hahnmgh63
March 14th, 2009, 23:26
Did you have to pull the downpipes to gut the pre-cats? How does the car sound with the gutted pre-cats? Any codes from the O2 sensors with the pre-cats gutted? Did you do the TCU tune yourself? Sounds lke you have a real screamer. I had mine to an indicated 175mph the other night but mine is definitely not as quick as your times, I think my tranny maybe slipping a little. I have Revo ECU, MTM TCU. I have flushed the tranny fluid and changed the filter. I recently did a tune-up, plugs, N75, some new vacuum lines. She feels a little stronger, maybe I'll try another acceleration run as it really didn't feel very strong past 150~155 before but it pulled fairly strong to 175mph before I let up.

DHall1
March 14th, 2009, 23:52
Ok,

I like the fact that you posted real world proof with this thread. Nice vids. I also like the fact that your not just taking wastegate duty cycles and making the tables 100 across the board.

So you have my attention as well.

Can you send me any data logs of a typical run?

Thanks for the info



As some of you know, I've been street tuning my RS6 for the past 8 months. Along the way I've tried out all kinds of new things and different combinations trying to see which yield the quickest acceleration and most horsepower. After 37 different file revisions, I was finally content with a couple of my latest files, so I decided to run the car last night at Island Dragway to see what she could do. Island Dragway (http://www.islanddragway.com/) is an NHRA quarter mile dragstrip in Great Meadows, NJ.

My best pass of the night on straight 93 octane pump fuel was 12.0@113. I then added 3 gallons of 104 octane, uploaded my race tune and ran 11.84@116.76 (http://titsup-racing.com/video/rs6/rs6.htm) which was then backed up with a 11.86@116.22 (http://titsup-racing.com/video/rs6/rs6_11_8.wmv). I was pretty happy with these numbers to say the least!

My race weight with me in it was 4357lbs. That included my helmet, laptop, misc. tools (just in case), and a few other items. I did, however, remove the small inflatable, donut sized spare and portable air compressor. I believe both of those combine to weigh somewhere around 50lbs.

Here's the link to the timeslips:

RS6 11 Second Timeslips (http://titsup-racing.com/video/rs6/rs6.htm)

And here's the link to the video that my friend Mike with the 9 second Evo shot:

RS6 11 Second Video (http://titsup-racing.com/video/rs6/rs6_11_8.wmv)

As far as I know, this is the quickest and fastest RS6 in North America. What's funny about that is my RS6 has only two modifications! It would be really easy for anyone to replicate these mods and go just as fast. Neither of these mods are all that expensive either, so you too can go 11's on a budget. ;) With RS6s selling for as little as $15K to $20K on the net these days, I really think it's the best overall car out there in terms of luxury, performance, value, etc.

The only mods I have are:

Gutted out pre-catalysts
Custom tuned ECM/TCM.

Boost is a solid 11.5 to 12.0psi to redline. A lot of tuners run 1 bar of boost or more, but I found through lots of back to back, A-B A-B testing that the car is actually faster with less boost and more timing. My TCM software makes for quicker, firmer shifts while retaining the factory's DSP (Dynamic Shift Programming).

My RS6 currently has 94K miles on it, the last 8K of which have been HARD miles, including hundreds of WOT runs and it has been 100% reliable (knock on wood). I have not had a single problem with it and the transmission and torque converter are all original and untouched. I see about 2-3 more miles per gallon with my tune than I do with the factory calibration. Last night on the way back from the track I averaged 23.3 MPG on the highway.

If anyone has any questions about my RS6 or about the custom tuning that I offer for the RS6, please feel free to e-mail me at marc@10seconds4.com. :rs6kiss:

__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 01:02
What happened to your thread on Audizine? I have a few questions. Did you remove your own precats? Were you able to remove the downpipes without removing the engine/ transmission? If you were to tune my car would you need the whole car or just the ECU/ TCU? I have to admit, you have my full attention.An Audizine moderator removed my threads because I am not an authorized vendor/advertiser over there and thus not allowed to post on their site. I hope my thread over here on RS6.com won't meet the same fate now that I've let the cat out of the bag on that. Since I don't see a single vendor, advertiser, or ad banner over here, I'm hoping I'll be OK. :thumb:

I gutted out the pre-cats with a buddy of mine who is master Audi technician. It took us a solid day to complete the job. It's a lot of work. We didn't need to remove the engine or transmission though. We did lower it several inches and that allowed us just enough room to access the downpipes. We got lucky in that none of the studs broke. I've heard of some guys breaking the studs while trying to remove their downpipes and then it's almost guaranteed that you have to drop the engine. The reason why I say we got lucky is because my RS6 has over 90K miles on it and I was almost expecting the studs to snap due to corrosion and rust. My friend has a ton of pictures that we took. I'll see if I can get them during the week and I'll post them up for you guys.

All I would need is your ECU and TCU. I could overnight them back the same or next day that I receive them. PM or e-mail me for more details.
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 01:28
Did you have to pull the downpipes to gut the pre-cats? How does the car sound with the gutted pre-cats? Any codes from the O2 sensors with the pre-cats gutted? Did you do the TCU tune yourself? Sounds lke you have a real screamer. I had mine to an indicated 175mph the other night but mine is definitely not as quick as your times, I think my tranny maybe slipping a little. I have Revo ECU, MTM TCU. I have flushed the tranny fluid and changed the filter. I recently did a tune-up, plugs, N75, some new vacuum lines. She feels a little stronger, maybe I'll try another acceleration run as it really didn't feel very strong past 150~155 before but it pulled fairly strong to 175mph before I let up.Yep, you definitely need to remove the downpipes from the car in order to gut them out. Some guys even pull the motor to gain access to them, but we were able to do it without going that far. If you look it up on ELSA -- the system used by Audi dealers for troubleshooting and servicing Audis -- it actually lists "Remove engine" as one of the first steps. It was pretty funny the way that it was worded.

There are no codes or CEL for the rear O2s with my calibration. That has been taken care of, so you need not worry about relocating the rear O2s or stacking up spark plug defoulers. ;)

I did do the TCU tune, although not by myself. I've received contributing help and support from friends across the pond. I only had to make a couple small changes to a handful of maps in the TCU. The Bosch Gmbh engineers already did a really good job with the transmission tuning on this car and the DSP stuff is truly fascinating.

I've only had my RS6 up to around 165, but I bet it would go 185+ without a problem based on how quickly it got up to 165. Here are a couple 0-150 MPH and 0-155 videos from inside my RS6. These were taken over the summer towards the beginning of my tuning R&D. I did not have the gutted pre-cats at this time either. BTW, according to back to back runs done with similar oil/coolant/intake air temps on the same exact stretch of road in the same direction, etc., gutting out the pre-cats was worth approx. 1 tenth and 1 MPH in the 1/4 mile on my tuned RS6. I was expecting a little more than that, but then again, I'm only running 11.5-12.0psi of boost, so I'm sure the benefits of gutted pre-cats will be better realized at higher boost/power levels. It just doesn't look like these turbos are efficient past 11-12psi, at least not on the 4.2L motor. I was thinking about tweaking the wastegate actuators to see if I can hold more boost to redline without massive taper, but if I'm going to be dropping the motor, I might as well just install some bigger turbos. :hahahehe:

0-150 MPH Video (http://titsup-racing.com/video/rs6/rs6_0-150.wmv)
0-155 MPH Video (http://titsup-racing.com/video/rs6/rs6_0-155.wmv)
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 01:37
The car sounds awesome with the pre-cats removed! You can really hear the turbos spooling up now. It's not really any louder, it just sounds much cooler!
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 01:43
Ok,

I like the fact that you posted real world proof with this thread. Nice vids. I also like the fact that your not just taking wastegate duty cycles and making the tables 100 across the board.

So you have my attention as well.

Can you send me any data logs of a typical run?

Thanks for the infoThanks for your kind words. I'm hoping to get the car on the dyno soon. I'll be dynoing it with the factory tune, then my tune on 93 octane, and then my tune on the pump/race mix. My race tune is a blended tune which can be run on a mix of 93/104 or 93/100. I wanted to tune for a blend so that guys don't have to worry about draining their pump fuel out. Still, you don't want to add race fuel to a tank that's 3/4 full already. :hihi:

Believe it or not but I didn't data log a single run from the track. I have tons of logs from the street though. Is there anything specific that you want to see? Overall timing? Timing correction factor? Boost? O2 voltages? Anything else?
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

p3u
March 15th, 2009, 02:21
Wow! Big improvement for a chip! I clocked 0-200 km/h around 14 seconds? Big wow!

I wonder what else you could get out of it with a full exhaust?

PM me with more info!

DHall1
March 15th, 2009, 02:33
Street tuning with logs is just about as good as dyno tuning. Its nice to document in the end and post final numbers but we can just about nail the hp from 1/4 times and mph.

I say yes to those parameters for logs. That will get a good snapshot of the tune. Any run will do just pick one.

Thanks again
Dave


Thanks for your kind words. I'm hoping to get the car on the dyno soon. I'll be dynoing it with the factory tune, then my tune on 93 octane, and then my tune on the pump/race mix. My race tune is a blended tune which can be run on a mix of 93/104 or 93/100. I wanted to tune for a blend so that guys don't have to worry about draining their pump fuel out. Still, you don't want to add race fuel to a tank that's 3/4 full already. :hihi:

Believe it or not but I didn't data log a single run from the track. I have tons of logs from the street though. Is there anything specific that you want to see? Overall timing? Timing correction factor? Boost? O2 voltages? Anything else?
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

FLACO X3
March 15th, 2009, 03:30
sweet. have heard great things about your S4 tuning. when I get my RS 6 I'll be contacting you about the ECU/TCU.

10SecS4
March 15th, 2009, 03:45
Wow! Big improvement for a chip! I clocked 0-200 km/h around 14 seconds? Big wow!

I wonder what else you could get out of it with a full exhaust?

PM me with more info!Yep, but those in-car speedo runs were only on pump gas and that was before I gutted the pre-cats. ;) I should do another in-car video to show how quick the car is now and then compare the two, like I did here (comparing stock vs tuned from 0-60 MPH and 0-120 MPH):

Split screen comparison video showing stock vs tuned acceleration (http://titsup-racing.com/video/rs6/RS6ComparoV4.mov)

What's also interesting about this comparison is the stock run was done in 17 degree temps whereas the tuned run was done in 60 degree temps! Huge difference there, yet the car was still way faster!

For those folks living in California and other regions of the country where you only have access to 91 octane, I already have a 91 octane tune available. :D

Edit: I just sent you a PM.
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 03:50
Street tuning with logs is just about as good as dyno tuning. Its nice to document in the end and post final numbers but we can just about nail the hp from 1/4 times and mph.

I say yes to those parameters for logs. That will get a good snapshot of the tune. Any run will do just pick one.

Thanks again
DaveAll of my data logs are in raw form, so what I can do is convert them into easy to read charts and maybe even show the comparison in boost/timing/etc. between stock and tuned. I'll get this up during the week and start a new topic for it. Sound good?
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 03:55
sweet. have heard great things about your S4 tuning. when I get my RS 6 I'll be contacting you about the ECU/TCU.You certainly picked a good time to buy an RS6! I've seen some of them go for as little as $15K or less at auction in the past few months. It's really unbelievable how much these cars have depreciated. You're talking about a 6 year old car that stickered for $85K+ depreciating to ~$15K to $20K. That's like 80% depreciation. Nuts! Doesn't bother me though especially since I love every second of driving mine and doubt that I'll ever sell it. I am thinking of picking up another though and going all out with it: upgraded turbos, built trans, high stall converter, etc. I think it would be extremely easy to get one of these into the 10's. :mech:
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

FLACO X3
March 15th, 2009, 04:14
You certainly picked a good time to buy an RS6! I've seen some of them go for as little as $15K or less at auction in the past few months. It's really unbelievable how much these cars have depreciated. You're talking about a 6 year old car that stickered for $85K+ depreciating to ~$15K to $20K. That's like 80% depreciation. Nuts! Doesn't bother me though especially since I love every second of driving mine and doubt that I'll ever sell it. I am thinking of picking up another though and going all out with it: upgraded turbos, built trans, high stall converter, etc. I think it would be extremely easy to get one of these into the 10's. :mech:
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).
yeah theres a lot of RS 6 cars here in CO, i see at least one a day. Last I checked theyre b/w $28k and 43k. I even put my GTRS install on the A4 on hold because Im considering buying one.

10SecS4
March 15th, 2009, 04:32
yeah theres a lot of RS 6 cars here in CO, i see at least one a day. Last I checked theyre b/w $28k and 43k. I even put my GTRS install on the A4 on hold because Im considering buying one.If you shop around, you can definitely find one for $20K or less. There's one on Autotrader right now for $17K obo, although it does have over 100K miles. I also saw one on the Chicago Craigslist for $17.9K with only 41K miles, but that could be one of those Nigerian scams so caveat emptor. Here are the links:

http://www.autotrader.com/fyc/vdp.jsp?ct=u&car_id=258922914
http://chicago.craigslist.org/chc/cto/1070972029.html
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

FLACO X3
March 15th, 2009, 05:11
thanks for the links

p3u
March 15th, 2009, 15:34
Falco X3, where in Colorado are you? Wonder if I've seen you around...

10secs4, how much slower would it be on a 91 tune? Being at high altitude I'm thinking there me be some tweaking to be done to have the tune work well at 6k feet.

DHall1
March 15th, 2009, 16:54
Actually you can run even more timing at your altitude.



Falco X3, where is Colorado are you? Wonder if I've seen you around...

10secs4, how much slower would it be on a 91 tune? Being at high altitude I'm thinking there me be some tweaking to be done to have the tune work well at 6k feet.

10SecS4
March 15th, 2009, 17:50
Falco X3, where is Colorado are you? Wonder if I've seen you around...

10secs4, how much slower would it be on a 91 tune? Being at high altitude I'm thinking there me be some tweaking to be done to have the tune work well at 6k feet.The only difference between my 91 and 93 octane tunes is spark advance. If you want my best guess based on all of my testing and data logging, I'd say the difference between 91 and 93 octane is 1 tenth and 1 MPH in the 1/4 mile.

I can do some back to back 91/93 octane testing at either the track or on the street using Ross-Tech's latest VCDS release (formerly known as VAG-COM). It has a built-in acceleration tool that can give you your 0-60 MPH, 1/4 mile ET, 1/8 mile ET, 1/4 mile trap speed, etc. It's semi-accurate, but for these purposes all we're trying to do is test the difference between two runs -- as opposed to absolute accuracy -- so for that it's perfect. Here's a screen shot of it. This is from early testing done last fall:

http://titsup-racing.com/video/rs6/rs6_12.3_115mph_VCDS.jpg

Elevation is a non-issue on ME7.1.1 ECMs. It features an on board F96 elevation sensor, as seen here:

http://www.rs6.com/forum/attachment.php?attachmentid=7806&stc=1&d=1237139307

The only time you'd need a custom tune for an RS6 at elevation is if you had radical modifications, a lot of boost, etc. At the boost levels seen with my tune, it's not an issue at all. Even if it were, it's something I could easily rectify. :D
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

10SecS4
March 15th, 2009, 17:51
Actually you can run even more timing at your altitude.On a normally aspirated car, you're absolutely correct. On a turbo car, however, it gets a little trickier.
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!).

FLACO X3
March 15th, 2009, 19:03
Falco X3, where in Colorado are you? Wonder if I've seen you around...

Parker. I've seen your car at the Euro GTG back in January.

Spidercat
March 17th, 2009, 03:12
I am thinking of picking up another though and going all out with it: upgraded turbos, built trans, high stall converter, etc. I think it would be extremely easy to get one of these into the 10's. :mech:



You have GOT to do that!!!
Huge congrats on the 11 sec runs! :bow:
The videos were great, too. What a composed brute of a car. No squeeling, smoking, fanfare, etc. Just awesome numbers! Giving the other guys more than a few lengths was a nice added touch for drama.:hahahehe:
Nice job!

SeattleS4
March 17th, 2009, 06:16
Awesome!

Your 60ft times are really impressive. Those are the 60ft times I cut in my Syclone so I know how violent of a launch that is. :)

You much be boost launching (brake launching)...how much boost can you hold at the line?

10SecS4
March 18th, 2009, 12:50
I'm leaving the line with 7-8psi of boost and launching at around 2400 RPMs. My RS6 currently has snow tires on it. If you watch my first 11.8 run, you can actually see and hear them spin for the first 10-20 feet or so.

Thanks for the compliments guys!
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!)

Yellow RS6
March 18th, 2009, 15:06
Great runs - congrats! Like SeattleS4 said, impressive 60ft times. But what's with the R/Ts? -lol

So you are power-braking (boost launching, brake launching, whatever it's called)? I thought I had read that the RS6 will not allow you to apply brakes and gas at the same time? Maybe I misunderstood what I read, or your ECU/TCU changes get around it? I know I could just try it on my car, but didn't want to risk throwing a CEL or anything.

allwheelsdriven
March 18th, 2009, 15:19
the beauty of all this is that you get those times and you still have cushy heated seating for 4

Yellow RS6
March 18th, 2009, 15:24
Wait, I just watched the video again. So your 1/4 time doesn't start until you've crossed the line? Meaning, the R/T doesn't affect the time anyway? Sorry, I'm a bit of a drag-racing noob :confused:

Tom C
March 18th, 2009, 18:24
Congrats!! Very nice drag strip times! :cheers:

Do you think you have enough gearing to hit 185mph? It seems like the car would have some trouble topping 175mph based on the revs during your video runs. Did you raise the redline?

Tom

Ruergard
March 18th, 2009, 18:30
You've got one quick beast there. Love to see it going off the line that hard! :thumb:

Have you dynoed it to see how much ponnies and torque it's putting down?

terrytcl
March 18th, 2009, 18:45
Wait, I just watched the video again. So your 1/4 time doesn't start until you've crossed the line? Meaning, the R/T doesn't affect the time anyway? Sorry, I'm a bit of a drag-racing noob :confused:


your reaction time doesnt' have anything to do with your 1/4 time.

you can sit at the line for an hour before you run and still click off a nice run. all that matters is from the time both staging lights turn off until you pass the 1/4 marker.

10SecS4
March 20th, 2009, 00:49
Great runs - congrats! Like SeattleS4 said, impressive 60ft times. But what's with the R/Ts? -lol

So you are power-braking (boost launching, brake launching, whatever it's called)? I thought I had read that the RS6 will not allow you to apply brakes and gas at the same time? Maybe I misunderstood what I read, or your ECU/TCU changes get around it? I know I could just try it on my car, but didn't want to risk throwing a CEL or anything.That was just me toying with the competition. I gave them both huge jumps and still reeled them in with no problem. :hihi:

Yep, I'm power-braking the car at the line. My software enables you to hold the gas and brake at the same time without the computer dropping the boost and/or closing the throttle like it does with the factory tune.

My software won't trigger any CELs or any other lights on the cluster for that matter. I've also tuned the software so that even if you gut your cats or go with aftermarket downpipes, you will not get a CEL for the rear O2 sensors. Thus, there's no need to relocate the rear O2s or stack defoulers to fool the computer.

Despite the substantial power/torque increase, the car still runs and drives just as smooth as stock with my software.
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!)

10SecS4
March 20th, 2009, 00:53
Congrats!! Very nice drag strip times! :cheers:

Do you think you have enough gearing to hit 185mph? It seems like the car would have some trouble topping 175mph based on the revs during your video runs. Did you raise the redline?

TomAbsolutely. I'm only crossing the traps in beginning of 4th gear. I still have the rest of 4th gear as well as 5th gear. I think the RS6 with the stock gearing and 255/40/18's has enough gear for around 200 MPH, although I haven't crunched the numbers.

I have not changed the shift points or rev limiter with my current tune. I have tried bumping up the shift points but the car was actually slower during my testing. With some real turbos and no boost taper to redline, I think then the car would benefit from higher shift points and a higher rev limiter. But as of right now, I think the factory shift points are perfect.
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!)

10SecS4
March 20th, 2009, 00:54
You've got one quick beast there. Love to see it going off the line that hard! :thumb:

Have you dynoed it to see how much ponnies and torque it's putting down?Not yet, but I hope to dyno it soon. I'm planning on dynoing it back to back with the stock tune and then my tune, then overlay the data to see the difference. I'll be sure to post up the charts once I get the car dynoed. :addict:
__________________
Marc aka 10SecS4

http://titsup-racing.com/video/rs6/rs6_sig.jpg

2003 Audi RS6
11.84 @ 116.76 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://www.titsup-racing.com/video/rs6/rs6.htm)
Mods: No pre-cats & my own custom tuned ECU/TCU. That's it!

2000 Audi S4
10.73 @ 132.76 | Video (http://titsup-racing.com/video/s4/s4_10_73.wmv) | Timeslip (http://titsup-racing.com/images/s4/s4_10_73.jpg)
Mods: K04s + bolt-ons + weight reduction (bone stock motor!)

Yellow RS6
March 20th, 2009, 14:32
That was just me toying with the competition. I gave them both huge jumps and still reeled them in with no problem. :hihi:

Yep, I'm power-braking the car at the line. My software enables you to hold the gas and brake at the same time without the computer dropping the boost and/or closing the throttle like it does with the factory tune.

My software won't trigger any CELs or any other lights on the cluster for that matter. I've also tuned the software so that even if you gut your cats or go with aftermarket downpipes, you will not get a CEL for the rear O2 sensors. Thus, there's no need to relocate the rear O2s or stack defoulers to fool the computer.

Despite the substantial power/torque increase, the car still runs and drives just as smooth as stock with my software.

Toying with the competition..........priceless :addict:

Thanks for clearing that up about the power-braking, I thought I had read that you couldn't with the factory tune. So I guess the times the magazines got back in '03 were just by smashing the gas. One more question, how are you shifting? I assume you're doing it manually, but am curious if you tried "S" mode also? And what the time difference was? Ok, so it was 3 questions :lovl: