View Full Version : I think I fixed the beast!
I just got back from vacation and have been wanting to put on the new silicone vac lines to replace the dried up stock ones. Condition was very poor with all of the ones on top on the manifold and going to the FPRs, didn't touch the one going towards the intercooler driverside, looked fine.
Anyways, while doing this I think I found the dealer never put the air box in correct, as the two threadings that are on either side of the air box were missing the nuts and were not in the mounting areas! Looks like the MAFS were not seated and leaking due to this...
Does anyone know what size these are, guessing M6?
After getting everything all done the car runs great, for the time being... Lets see if its finally good! If it is Revo coming soon :jlol:
10SecS4
May 21st, 2009, 16:27
That would definitely explain your MAF voltage too high codes. Good job!
I'm just curious, why are you going with Revo? I've seen a couple RS6 timeslips with Revo software and the highest 1/4 mile trap speed was only 108. The guy in this thread only managed 103 and 107:
http://www.rs6.com/forum/showthread.php?t=4252
__________________
Marc aka 10SecS4
http://titsup-racing.com/video/rs6/rs6_sig.jpg
2003 Audi RS6
11.59 @ 118.63 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://titsup-racing.com/video/rs6/rs6_11_59_timeslip_resized.jpg)
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!)
I just got back from vacation and have been wanting to put on the new silicone vac lines to replace the dried up stock ones. Condition was very poor with all of the ones on top on the manifold and going to the FPRs, didn't touch the one going towards the intercooler driverside, looked fine.
Anyways, while doing this I think I found the dealer never put the air box in correct, as the two threadings that are on either side of the air box were missing the nuts and were not in the mounting areas! Looks like the MAFS were not seated and leaking due to this...
Does anyone know what size these are, guessing M6?
After getting everything all done the car runs great, for the time being... Lets see if its finally good! If it is Revo coming soon :jlol:
V8weight
May 21st, 2009, 16:30
Yes, they are 6mm nuts. I stock a few dozen of these because they are missing everytime I get my car back from the dealer and I have to reinstall them myself.:nono:
Scratch that on fizing the issue, boost cut and kicked in once again at the 5500rpm mark. :doh:
Well back to the drawing board, and time for more vag logs.
10secs4, I'm looking at revo due to the fact I have live at altitude ~6500ft and that you can customize it.
I haven't forgotten about your software either, but I'm just worried with you being on the other side of the country how well it can be tuned for my situation.
Spidercat
May 22nd, 2009, 00:00
I'm just curious, why are you going with Revo? I've seen a couple RS6 timeslips with Revo software and the highest 1/4 mile trap speed was only 108. The guy in this thread only managed 103 and 107:
http://www.rs6.com/forum/showthread.php?t=4252
__________________
Marc aka 10SecS4
http://titsup-racing.com/video/rs6/rs6_sig.jpg
2003 Audi RS6
11.59 @ 118.63 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://titsup-racing.com/video/rs6/rs6_11_59_timeslip_resized.jpg)
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!)
Here's a more recent Revo experience: (go down to #16)
http://www.rs6.com/forum/showthread.php?t=18303
SAFE4NOW ran an 11.53 according to the above (yes, I realize it was on race gas). Also, I don't know the trap speed and didn't see the timeslip. FWIW I have the Revo ECU/MTM TCU and I'm pretty happy with it, but I'm sure I didn't do the extensive testing/tweeking you did with your custom tune. Refresh my memory, your 11.59 was on 93 octane gas, no? Or was it a 50/50 pump/race mix?
I always run mine about 50/50. I was a little surprised when you wrote before that increasing the timing made more gains (in the 1/4) than increasing the boost on your RS6. I've always kept the boost all the way up and just adjusted the timing depending upon the fuel (as much as the Revo box lets you adjust, that is).
10SecS4
May 22nd, 2009, 00:14
Anything's possible, but based on all the Revo data I've seen both online and acquired first hand, I'd say he probably meant 12.53. Just a hunch. He also says it wasn't a "real" 1/4 mile, so I wonder what that means?
My 11.59 pass was on a 104/93 octane mix. I've made a few changes to the car since then and based on my VCDS logs, the car is a little bit quicker.
Running more boost on the RS6 won't make it much faster because it tapers big time after about 4500 RPMs.
Here's a more recent Revo experience: (go down to #16)
http://www.rs6.com/forum/showthread.php?t=18303
SAFE4NOW ran an 11.53 according to the above (yes, I realize it was on race gas). Also, I don't know the trap speed and didn't see the timeslip. FWIW I have the Revo ECU/MTM TCU and I'm pretty happy with it, but I'm sure I didn't do the extensive testing/tweeking you did with your custom tune. Refresh my memory, your 11.59 was on 93 octane gas, no? Or was it a 50/50 pump/race mix?
I always run mine about 50/50. I was a little surprised when you wrote before that increasing the timing made more gains (in the 1/4) than increasing the boost on your RS6. I've always kept the boost all the way up and just adjusted the timing depending upon the fuel (as much as the Revo box lets you adjust, that is).
10SecS4
May 22nd, 2009, 00:19
Did you have this same exact problem before you installed the 710N diverter valves? Did you clear the codes after you correctly seated the MAFs?
I can easily do a high elevation tune for you. Just curious though, how would Revo be customizing it for you? Do you mean through their Select Plus gizmo? I thought that only let you make changes to boost, timing, and primary fuel?
Scratch that on fizing the issue, boost cut and kicked in once again at the 5500rpm mark. :doh:
Well back to the drawing board, and time for more vag logs.
10secs4, I'm looking at revo due to the fact I have live at altitude ~6500ft and that you can customize it.
I haven't forgotten about your software either, but I'm just worried with you being on the other side of the country how well it can be tuned for my situation.
DHall1
May 22nd, 2009, 01:03
Steve ran that 11.53 on the dyno 1/4 time.
I dont think that will translate to the real track.
IMHO.
We wont know for some time as his car got rear ended.
Here's a more recent Revo experience: (go down to #16)
http://www.rs6.com/forum/showthread.php?t=18303
SAFE4NOW ran an 11.53 according to the above (yes, I realize it was on race gas). Also, I don't know the trap speed and didn't see the timeslip. FWIW I have the Revo ECU/MTM TCU and I'm pretty happy with it, but I'm sure I didn't do the extensive testing/tweeking you did with your custom tune. Refresh my memory, your 11.59 was on 93 octane gas, no? Or was it a 50/50 pump/race mix?
I always run mine about 50/50. I was a little surprised when you wrote before that increasing the timing made more gains (in the 1/4) than increasing the boost on your RS6. I've always kept the boost all the way up and just adjusted the timing depending upon the fuel (as much as the Revo box lets you adjust, that is).
DHall1
May 22nd, 2009, 01:07
Marc,
Refresh my memory here.
Your ECU upgrade is a new mother board install or reflash?
Can you send me a sample 2D screen shot of the timing map or fuel table before and after?
Does Audi use load factor against RPM for timing maps?
dhall.1 @ hotmail.com
Anything's possible, but based on all the Revo data I've seen both online and acquired first hand, I'd say he probably meant 12.53. Just a hunch. He also says it wasn't a "real" 1/4 mile, so I wonder what that means?
My 11.59 pass was on a 104/93 octane mix. I've made a few changes to the car since then and based on my VCDS logs, the car is a little bit quicker.
Running more boost on the RS6 won't make it much faster because it tapers big time after about 4500 RPMs.
Did you have this same exact problem before you installed the 710N diverter valves? Did you clear the codes after you correctly seated the MAFs?
I can easily do a high elevation tune for you. Just curious though, how would Revo be customizing it for you? Do you mean through their Select Plus gizmo? I thought that only let you make changes to boost, timing, and primary fuel?
Same problem before I replaced N75, 710N's, MAFS, and vac lines... I cleared all codes as well after replacing, I hate the car when it works like poo.
I was under the impression that the REVO could be further tuned in the right hands, maybe not, just what you are talking about.
Also, can your software be updated without removing the ecu? When I had a stage 3 by autospeed they would just send the files via email and I could upload them, do runs, log info, and send back to them for further revision and updating till it was spot on.
RS6-4dr911
May 22nd, 2009, 04:52
Fwiw, I just came off of an attempt with a custom code, vendor shall remain nameless to protect the guilty. Car was stunningly fast, only problem was roughly every 2 weeks the CEL came on with a check sum error that put it in limp mode. I gave up, after shedding a few tears, and went back to stock.
Tried the Revo test and ran a comparison using Dynolicious on my iPhone (I know, I know, its not perfect, but after 4 runs before and after it should be a valid basis for comparison) and it appeared to be faster 0-60 but max G's were roughly the same and the butt dyno readings could not detect a difference. I passed. Seems to confirm the comment above about Revo not being that much faster. Could be my imagination but seemed like w/ Revo the lag and low end throttle response were worse than stock. I'd definitely be interested in 10sec's version if it doesn't throw a CEL.
So what about it 10sec, care to share with the class?
By the way Dave, be careful about the Pelosi comments and cement Florsheims. If ACNA found you, so can her well connected hubby.
DHall1
May 22nd, 2009, 05:02
Yeah, your very correct.
If she has the balls to call out the CIA and not worry about it. She must have the ammo to back it up.
Actually, the Audi rep got my info from Audi World and plugged my info into the service system. There was my cell number and he called me. I told them to can Audi World and spend time over on RS6.com where all the people are.
By the way Dave, be careful about the Pelosi comments and cement Florsheims. If ACNA found you, so can her well connected hubby.
10SecS4
May 22nd, 2009, 17:02
Please excuse my ignorance, but how does somebody run a 1/4 mile on a dyno?
My ECU upgrade is a re-flash. If some of you still have warranties or service contracts, the dealer or shop would not be able to tell from looking at the board that it has been modified.
Yep, you are correct on the timing. This is why removing weight from a car requires a re-tune if you want the most power:
http://titsup-racing.com/ecux/c16_choppy_timing/image006.gif
I'll see if I can e-mail you some screen shots over the weekend.
Marc,
Refresh my memory here.
Your ECU upgrade is a new mother board install or reflash?
Can you send me a sample 2D screen shot of the timing map or fuel table before and after?
Does Audi use load factor against RPM for timing maps?
dhall.1 @ hotmail.com
Steve ran that 11.53 on the dyno 1/4 time.
I dont think that will translate to the real track.
IMHO.
We wont know for some time as his car got rear ended.
10SecS4
May 22nd, 2009, 17:07
Yeah I think Revo only lets you make small changes to boost, timing, and fuel.
Unless you're local, you'd have to remove your ECU and ship it to me for an updated file. Chances are the first time it'll be perfect, although you may want an updated file if you go with more mods in the future. :thumb:
I've never heard of Autospeed sending files to customers via e-mail. Were they sending the files directly to you the customer or were they doing this through one of their affiliated dealers? If the former, what did you use to upload the file to the ECU?
Have you been able to log your requested/actual boost when you're experiencing the issue? If so, is there a substantial difference between the two?
__________________
Marc aka 10SecS4
http://titsup-racing.com/video/rs6/rs6_sig.jpg
2003 Audi RS6
11.59 @ 118.63 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://titsup-racing.com/video/rs6/rs6_11_59_timeslip_resized.jpg)
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!)
Same problem before I replaced N75, 710N's, MAFS, and vac lines... I cleared all codes as well after replacing, I hate the car when it works like poo.
I was under the impression that the REVO could be further tuned in the right hands, maybe not, just what you are talking about.
Also, can your software be updated without removing the ecu? When I had a stage 3 by autospeed they would just send the files via email and I could upload them, do runs, log info, and send back to them for further revision and updating till it was spot on.
10SecS4
May 22nd, 2009, 17:14
Definitely no check sum errors or CELs over here! I can also provide a full money back guarantee if you're not completely satisfied for any reason. :race:
Where are you located? Is your car bone stock right now?
__________________
Marc aka 10SecS4
http://titsup-racing.com/video/rs6/rs6_sig.jpg
2003 Audi RS6
11.59 @ 118.63 | Video (http://www.titsup-racing.com/video/rs6/rs6_11_8.wmv) | Timeslip (http://titsup-racing.com/video/rs6/rs6_11_59_timeslip_resized.jpg)
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!)
Fwiw, I just came off of an attempt with a custom code, vendor shall remain nameless to protect the guilty. Car was stunningly fast, only problem was roughly every 2 weeks the CEL came on with a check sum error that put it in limp mode. I gave up, after shedding a few tears, and went back to stock.
Tried the Revo test and ran a comparison using Dynolicious on my iPhone (I know, I know, its not perfect, but after 4 runs before and after it should be a valid basis for comparison) and it appeared to be faster 0-60 but max G's were roughly the same and the butt dyno readings could not detect a difference. I passed. Seems to confirm the comment above about Revo not being that much faster. Could be my imagination but seemed like w/ Revo the lag and low end throttle response were worse than stock. I'd definitely be interested in 10sec's version if it doesn't throw a CEL.
So what about it 10sec, care to share with the class?
By the way Dave, be careful about the Pelosi comments and cement Florsheims. If ACNA found you, so can her well connected hubby.