Vast RS6 Turbo logs

[Meow]

Stock block, conservative vast tune, just did some pulls this morning to check up on everything. Overall this tune is awesome, tons of top end power and flow!!! I love these turbos. Hardly any ignition retard at all, all in the single digits. First pull is a 2nd gear and the other two are 3rd gear pulls. I did more but non turned out well because of not the best roads. Ended up with a 3.62 FATS time, not sure if that is good or not, but it sure hauls like a freight train up top!

Basic mod list:

• Vast OEM full RS6 turbos (slarger turbine housing than rs4 k04s)
• RS4 Headgasket
• 710n's Diverter Valves
• Vast Custom
• Vast 90mm Aluminum Elbow (4") with integrated MAF housing with AEM Dry Flow Open Element Filter
• Bosch EV14 Injectors
• Deatschwerks 300lph Fuel Pump
• Vast 5 bar Fuel Pressure Regulator
• Vast Kevlar Clutch with modified RS4 Pressure Plate with Single mass flywheel
• AWE Side mounts intercoolers with Samco silicone hose kit
• apikol snub mount, stern tranny mounts
• SSAC full exhaust with modified catless downpipes to fit OEM RS6 turbos
• Zeitronix ZT-2 Wideband with LCD display of AFR, Boost and Oil pressure
• Electric fan kit
• Vast Phenolic spacer
• JHM short shifter
• Power Steering Cooler
• Rebuilt trans with upgraded syncros and 1-2 shift collar and taller 6th gear.
• ST Coilovers (surprise from my old man)

I inherited the wheels off my dads s4, VMR v710's which look amazing. Along with the wheels he surprised me with a set of ST coilovers which make the car look just mean as all get out.

As of right now:












2nd gear pull




3rd gear pull



Another 3rd gear pull.

[AudiSportB5S4]

Looks good.. You could definitely run a little more boost up top, but you have the AWEs without methanol I'm guessing and you can see the IAT rise starting to hurt already. I bet it pulls a bunch harder in the cooler weather :)

[Meow]

Looks good.. You could definitely run a little more boost up top, but you have the AWEs without methanol I'm guessing and you can see the IAT rise starting to hurt already. I bet it pulls a bunch harder in the cooler weather :)

stock bottom end with 163k miles on it. I am unsure of how well it was taken care of with the oiling and stuff because I already had to rebuild the head... hoping the bottom end has faired better. Also the pistons have some small valve marks on them which can create hot spots and knocking. All of this adds to an overall conservative tune for rs6's.

This morning it was 68 degrees, which made it pull real nice and hard compared to the 100+ degrees the past week or two. The AWE's are doing ok, but the delta is still high. Methanol would surely help this, but again, I don't want to push the stock block much. There is WAY more room to be had with these turbos and racegas or methanol, or even more boost on pump gas.

I really love the streetability of the tune. It runs like a stock car, no hickups or issues. I am very pleased with the around town driving and overall feel of the tune. So glad I went stage 3 now... lol.

[Don Supreme]

Car looks good, enjoy it...

Meth would help though.

[Doug@FrankenTurbo]

I'm impressed by your summertime boost onset. Nearly a bar at 3000. I didn't think RS6's were capable of that.

[S4 00 2.7]

Nice.

[temanuele]

I would look into some intercooler shrouds if you aren't going to do water-methanol. It will help keep your IAT's flatter. For a conservative tune, your corrections are a bit high.

Trust me when I say that you are only scratching the surface with your setup. With some well sorted tuning and hardware, you can absolutely dip those FATS into the 2's!

[badbiturbo]

Thanks for the logs, you have me excited about installing mine! Definitely considering Rods though

[z00lander]

Is that 22 pounds before 3000 rpm????

Correction, I put my eyes back in and re-looked at that graph

[jibberjive]

With some well sorted tuning and hardware, you can absolutely dip those FATS into the 2's!

FATS mean jack.

[FlyboyS4]

FATS mean jack.

If recorded and evaluated properly it is a useful measurement.

[jibberjive]

If recorded and evaluated properly it is a useful measurement.

Like dyno numbers, on a micro level FATS times should only be used to compare a car against itself to measure progression (or to compare to another car that is there driven on the same road under the same conditions). 99% of the cars that do FATS aren't done with a V-box to measure incline/decline, aren't necessarily started at the same RPM, started at the same load, same quality of road, etc, etc. As such, I have zero faith that a similarly equipped RS6 3sec FATS on the internet car will be necessarily beat a different RS6 car from another state that runs 3.6 sec FATS on the internet, if they were to line up next to each other in real life, just as an example. That said, I have no doubt that a relatively honest 1.8 sec FATS GT car will likely kill a relatively honest 3.5 sec K04 car or something (just like a 600whp will usually beat a 400whp car, independent of which dyno).

I think of FATS from random people on the internet just like I think of dyno numbers from random people on the internet. Though the dyno is a useful tuning tool as well, of course.

Usual disclaimer applies, this is all my opinion, and anyone is free to disagree.

[FlyboyS4]

Though the dyno is a useful tuning tool as well, of course.

Yes, a FATS or dyno can be manipulated and comparisons between different vehicles if not done under controlled conditions is not reliable. But just as a dyno can provide useful information, so can a FATS. My remark was merely a disagreement with your statement that "FATS mean jack".

[jibberjive]

Yes, a FATS or dyno can be manipulated and comparisons between different vehicles if not done under controlled conditions is not reliable.

It's not that FATS 'can' be manipulated [with implications of intentional distortion], so much as it is that FATS, as they generally exist on the internet, have no means of standardization and verification (outside of the definition of being a pull between a certain RPM range). There is no standard 'contolled conditions', nor means/requirement to verify some of the factors that can sway it significantly.

To me it's like as if people all over the country were to find a local road, measure 1320ft themselves, time a 1/4mi run themselves with a stopwatch, and then try to draw conclusions by comparing tenths of a second differences with other people across the country who did the same.

My remark was merely a disagreement with your statement that "FATS mean jack".

I was speaking in context of the person I quoted in that post ("With X your FATS can be in the 2's"). For all we know, on a different stretch of road and under different conditions, that car as-is could possibly post a FATS in the 2's (or the 4's). Hence FATS [as some sort of absolute value] mean jack.

[c0rrup]

You are correct, lets stop sharing information that can be potentially helpful to others even if it is not NASA precise.

[temanuele]

Unfortunately, FATS is the closest thing that we have to a benchmark. Most of the S4 guys aren't doing vbox 60-130's, as evidenced by the poor showing in the times section. Even on a somewhat uphill road, a well sorted RS6 car will be under 3.6. This is more at what I was getting at, that the car has room to improve (not only based on the FATS, but the logs as well). I use FATS times as a benchmark for myself, taking them on the same stretch of road under similar conditions. I see improvement in my own car through various file tweaks, but I agree that it is inaccurate to extrapolate such data to create comparisons. The OP has room for more, I'll just put it that way. Whether he wants to measure this growth through FATS or dyno time, is up to him.

[jibberjive]

You are correct, lets stop sharing information that can be potentially helpful to others even if it is not NASA precise.

I wasn't trying to discourage sharing of FATS by any means (I think the OP has an awesome attitude about FATS), just saying it shouldn't necessarily be used as a benchmark that carries much weight when comparing cars.

The OP has room for more, I'll just put it that way. Whether he wants to measure this growth through FATS or dyno time, is up to him.

Understood. I thought you were more basing that statement off of trying to compare to other RS6 FATS times, rather than interpreting the logs and simply seeing room for improvement.

[Meow]

I would look into some intercooler shrouds if you aren't going to do water-methanol. It will help keep your IAT's flatter. For a conservative tune, your corrections are a bit high.

Trust me when I say that you are only scratching the surface with your setup. With some well sorted tuning and hardware, you can absolutely dip those FATS into the 2's!

I have shrouds, the car is setup pretty conservative for power with the stock bottom end. If i wanted to push it, I would talk with mike and have him crank it to the max. Right now its setup so I can throw racegas in it and the correction factors will go down and I will have the proper timing for race gas. The boost is what is conservative. The turbos can easily do 26 psi or more on pump gas, even more with meth, but that is beyond what Im willing to push my stock bottom end. When I get new rods I will push it more. I am very happy at the power its at right now. Its more than enough to scare myself when I need it ;)

[Meow]

Looks good.. You could definitely run a little more boost up top, but you have the AWEs without methanol I'm guessing and you can see the IAT rise starting to hurt already. I bet it pulls a bunch harder in the cooler weather :)

Just went back to look at these logs again, Im only seeing a 13 degree rise in temps in my 2nd gear pull. I think thats pretty good for AWE's without meth.


Looking at what other rs6 cars run for boost I am very happy with how this car is running on the conservative boost. Im 5-6 psi lower than most rs6 setups, which is very safe for my block. I am probably close to what most guys push their RS4 setups to but with much less strain on the turbos to do so.

[AudiSportB5S4]

I wasn't trying to discourage sharing of FATS by any means (I think the OP has an awesome attitude about FATS), just saying it shouldn't necessarily be used as a benchmark that carries much weight when comparing cars.

Same. Where I log my car, and all the others who come to me for whatever reason, it's a great benchmark for performance. I wouldn't publish the number and say hey I will destroy a car that did 2 tenths more than me. lol... Using the same exact stretch and same method of doing the pulls in my case where I've collected a folder of 25 people's S4s on multiple setups, it works for me.

Just went back to look at these logs again, Im only seeing a 13 degree rise in temps in my 2nd gear pull. I think thats pretty good for AWE's without meth.

Haha, yeah they are.. When plotted using those graphs it looks like that 13* rise is way more substantial. I'm just used to reading Mark P's template time and time again.

[Meow]

Haha, yeah they are.. When plotted using those graphs it looks like that 13* rise is way more substantial. I'm just used to reading Mark P's template time and time again.

Charging up my laptop right now. Ill go out and do some more pulls in 2nd and 3rd to see what kind of deltas I am getting in a normal summer days heat. These were done in the morning (nice and brisk temps) so its a bit unfair to judge.

Ill be posting them tonight once I get done logging ;)

[AudiSportB5S4]

Charging up my laptop right now. Ill go out and do some more pulls in 2nd and 3rd to see what kind of deltas I am getting in a normal summer days heat. These were done in the morning (nice and brisk temps) so its a bit unfair to judge.

Ill be posting them tonight once I get done logging ;)

Don't forget about good old Mark P! Download the 4runsCompare :)

[Meow]

Don't forget about good old Mark P! Download the 4runsCompare :)

Interesting calculator. Before I use it I would like to know what it does... lol. Looks like it allows you to paste data in and it graphs stuff for you. Does It automatically grab the correct columns based on their title from ECUx or does it it require you to log specific groups? Any more info on this mark p setup?


edit: found this http://ctny.audiworld.com/mark/s4/ecux/ thanks for pointing me in that direction... very useful. Ive been using ECUx plot...

[AudiSportB5S4]

Yeah man... Mark made that years ago for everyone and it works very well IMO, very clear and concise. ECUx plotter is nice, but the graphs aren't as easy to read I feel.

[jibberjive]

Don't forget about good old Mark P! Download the 4runsCompare :)

I say do forget about good old MarkP excel graphs. The ECUxPlot could use a couple of tweaks (like being able to set standard max/min values on some of the graphs, so that you can compare general trends easier), but the MarkP templates require so much more filter, cut/paste etc. ECUxPlot is way less laborious, and works with ME7Logger out of the box (unlike the excel templates).

Interesting calculator. Before I use it I would like to know what it does... lol. Looks like it allows you to paste data in and it graphs stuff for you. Does It automatically grab the correct columns based on their title from ECUx or does it it require you to log specific groups? Any more info on this mark p setup?


edit: found this http://ctny.audiworld.com/mark/s4/ecux/ thanks for pointing me in that direction... very useful. Ive been using ECUx plot...

It does the same thing as ECUxPlot, just from excel. You have to filter it using a different excel file and cut and paste everything by hand. It is like three times the amount of manual work on the computer. Also, since the MarkP templates are set up to be used with ECUx, it won't automatically grab all of the right info from the ME7Logger logs. Also, the time stamps are different, so FATS and accel info won't work with MarkP's ECUx templates either. If you're going to do multi-gear pulls, it'd probably be worth the time to reconfigure his mulit-gear template to get it to work with the ME7Logger data. For single gear pulls done through ME7Logger though, I'd just stick with the ECUxPlot and just pay close attention to the axes when comparing graphs (until the feature to set permanent axes is added to ECUxPlot).

[Meow]

Sooooo it looks like its pulling some timing due to intake air temps, not really due to knock. It was also 90+ degrees out today, only dropped to about 88 by the end of my logging session, which is crazy hot!!! lol. I think meth is in order :)

MultiGear Pull

[Meow]

LOADS OF LOGS!!!!!!!! mwahaha, you can never have too much info ;) lol

5th gear, testing for overboost, seems to be behaving fine.



2nd Gear Pull








1st Gear Pull








3rd Gear Pull








2nd Gear Pull









1st Gear Pull





3rd Gear Pull








3rd Gear Pull









3rd Gear Pull









3rd Gear Pull









2nd Gear Pull

[jibberjive]

I don't see any graphs...

[Ribbie]

Holy Logs Batman!!!

[Fourplay]

160F IATs at the end of that multi-gear pull. Holy crap. I can't even imagine what my IATs are when it's 105+ out. Yeesh.

[RobBanks]

I Can't believe your doing pulls like that in this heat. Your car is gonna feel crazy fast when its 45 degrees with no humidity....25 and you might be pushing the limits of those rods.

[CCW M3]

Rob banks is this the guy who use to have a black avant that i busted its ass all over m53 multiple times in my stage 2 sedan?

[CCW M3]

we have a local stock motor avant pulling 2.6 fats on pump gas...With rs6 turbos we can do a pull against this car to see where he is at!! LOL

[RobBanks]

Rob banks is this the guy who use to have a black avant that i busted its ass all over m53 multiple times in my stage 2 sedan?

Yep kinda funny I was just out there to see a surgeon and it came to mind. Made me laugh thinking how you were taking it to like 125+ and even going into 5th. Thats over 5 years ago. Got an avant coming across the pond so I've been trollin tryin to see whats up.....I've seen some videos of how your car turned out. You back in The mitten?

[CCW M3]

Yeah albert im just kidding with you lol..... Im excited to see what you picked up!!!

[Meow]

I Can't believe your doing pulls like that in this heat. Your car is gonna feel crazy fast when its 45 degrees with no humidity....25 and you might be pushing the limits of those rods.

25 degrees out today and my rods were safe :) lol. FATS has dropped significantly with temperature, like .3 or so, ill have to do some more logging when the roads clear a bit, (still rainy... no snow yet)

[haggard69er]

love the cold weather. hey meow, can i still send you my ecu?

[andyid]

160F IATs at the end of that multi-gear pull. Holy crap. I can't even imagine what my IATs are when it's 105+ out. Yeesh.

I was thinking the same thing!
160F for IAT's is NUTS!

I have just k04's, and here in Maine, it gets up to 90-110F but with HIGH humidity and i can just imagine what mine would be like especially since im pushing 23-24psi!

Imma have to log it like he has! Never though about doing that!
Might be the time!

[Meow]

MOAR, never can have enough data.














The acceleration calculation is almost exactly the same as the torque calculation, thats why they match so well. Note this is ECUx Plot's calculations ;)

[Soopaman15]

If I buy this cable how hard is it to log my S4 with RS6's???
http://www.audizine.com/classifieds/...usb-can&cat=21

Or should I follow JibberJive's tutorial and buy this one...
http://www.ebay.com/itm/NEW-FTDI-FT2...8135cf&vxp=mtr