IanH's C6 RS6 - 955hp & 1200nm - Updated 09 Feb '24

[IanH755]

This was the leather repair on the bolster, really well done, I can't even feel any difference!





I think I might have to replace the drivers Seatbelt as it's covered in dozens of odd looking round "stains" (not visible in pics) which look like (but aren't) something like oil droplets or maybe grease spots, yet they won't come out even with a steam machine on them. Really odd?

[VaudiGR]

Sent elta may come with a bunch of extra items which are connected to the airbag system. I doubt it would be a cheap fix. Are you sure there is no way to clean? It's fabric so if steam doesn't do it then water based cleaning products?

[chunky79]

Seen some great YouTube videos done by Signature, some "big names" use these guys. Car looks great Ian.

[IanH755]

Seen some great YouTube videos done by Signature, some "big names" use these guys. Car looks great Ian.

I can believe the "big names" bit from what I saw parked there, plus a bunch of the staff are Audi S/RS owners too so a 5min pick-up of the car turned into an hour long conversation about our various cars

[IanH755]

Back from MRC after a little remapping for the new Wagner IC's inc a few switchable maps - I was originally at 907hp & 1130nm with a 6500rpm redline due to the restrictive KWE IC's, then I had the map dropped to 870hp & 1100nm with a 6500rpm redline as the intake temps were getting a bit too spicy at redline and now, after fitting the better cooling and better flowing Wagner IC's I'm at 930hp and 1125nm with an increased 7500rpm redline.



Things from the dyno session - my 112k mile LP fuel pump is very close to max'ing out as it's not quite hitting the same pressure a new pump would so I'm fitting an uprated one (believe it's from a Veyron?) and the plugs & coils will also be getting a look at too, mainly due to age/heat over time (coils) and new plugs which I haven't changed in 4 years so it's always a good idea. I'll be back to MRC again in a few weeks for those bits and may get a slight bump in power too once the fuel delivery is more reliable.

Switchable Maps - Got this map which is 99RON fuel + 50/50 Water/Meth, a backup map of just 99RON fuel for about 900hp (oh no ) and another map all switchable whilst driving. Plus they've also added switchable (very important to me) "pops and crackles" which is the biggest understatement I've heard in a while. These aren't your tame little OEM pops and farts; with my free-flowing exhaust these are full fledged Anti-Lag/2-Step gunfire like explosions. Happily they only happen once you let off the revs above 3000rpm and they are switchable in-car so I only have them when I want them. They've a little OTT for me but I can drive the car without them "On" just fine.

[IanH755]

Did a quick 1/4 mile test using a 10hz GPS device on a disused concrete strip (old airfield/taxiway type thing) near me, it's juuuuuuust about long enough if you brake very hard at the end which, at the 150+ mph I was doing, was a little squeaky bum time as the concrete surface which is already not great is really becoming broken up in the braking area. I'll have to find somewhere else TBH as the newly found damage makes it just too sketchy I think and I should have done a "recon" of the area first as I probably wouldn't have done it had I seen the braking area first.

Did 11.27sec at 134mph with a slight engine stumble as it changed from 1st to 2nd which was worth probably 0.25 sec so with a perfect launch on a proper surface (and not cracked concrete) I think I could get into the 10's. It also did a 3.6sec 0-60mph and a 6.16sec 100kph to 200kph which would put me in with the McLaren F1



PS The elephant in the room, I know, please excuse the N95!!! As I've said before the software (Racechrono) thats on it is still better than virtually everything else available due to the completely custom nature of it's recording speed/distance etc (i.e. want to record 3mph to 127.7mph - no problem, want to record 1.7654 miles - no problem etc) however the phone screen is failing so I've just bought a Dragy to replace it which, whilst cheaper than Vbox and Racebox etc is still way more expensive than the £30 10hz GPS receiver that the free Racechrono software uses (Android Racechrono only does lap timing now, no performance tests, such a stupid mistake).

[jnrdavo]

Are you doing the sprint with traction on or off? I thought the figures would be slightly lower times with 900bhp+ and 1000nm on tap... Does the MRC come with launch control?

Don't get me wrong, it's an awesome build and I love my molded cars !

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[IanH755]

Thats all ASR/ECS off and, as it's an older type Torque Converter based gearbox, there's no software based launch control etc just the natural "stall speed" of the TC (about 2000-2500rpm) using left foot braking whilst rev'ing, which really isn't good for the life of the gearbox as it overheats the GB oil very quickly leading to wear and slower shifts, so you don't want to do that often.

Basically it's not really meant for drag racing TBF, it's more of a 2nd gear and upwards type car as 1st just bogs down low then spins up high i.e. the TC can't get the rev's high enough for a proper launch so the car bogs down right at the start and then, once on boost, the car wheelspins hard into 2nd gear on a normal road - it's just all very messy

***EDIT*** - Just had a quick look at an American "Power and Speed vs ET" calculator online and with 930hp (fly), 4750lbs weight (me + car) and 134mph trap speed my ET "should", according to the maths, have been around 10.45sec with a perfect run.

My Dragy has arrived so I might stick-up another run at some point just to compare.

[Fatneck73]

Great write Ian…i think i gotta go pops n bangs…would love that.

[IanH755]

Great write Ian…i think i gotta go pops n bangs…would love that.

It's a little anti-social TBH but because it's switchable On/Off using the ASR/ECS, meaning you can choose when to be anti-social, I quite like it at the very specific times I'd use it.

I suppose it's probably my "understated is best" personality which cringes internally at the extremely showy "look at me, LOOK AT ME" aspect of the very loud pops and bangs so while I'd never use it around people (i.e. going past people on a dual carriage/Mway etc so they get a face-full of unburnt fuel, flames and noise) on a quiet B-road blast it's been very fun!

[RMC83]

Great curves there Ian, i bet your happy with that.

Re your map without your WMI mapped in, is that the run file 9 on your graph, or is there another graph for that map?

Cheers
Roy

[IanH755]

Yeap thats run 9, the 910ps one.

[IanH755]

I thought the figures would be slightly lower times with 900bhp+ and 1000nm on tap... Does the MRC come with launch control?

1st just bogs down low then spins up high i.e. the TC can't get the rev's high enough for a proper launch so the car bogs down right at the start and then, once on boost, the car wheelspins hard into 2nd gear on a normal road.

I did a Dragy run and you actually see this happen in the acceleration graph - there's a little spike at launch followed by a dip as the car bogs, then a massive dip at 1st-2nd gear change (it just stops accelerating shown as the line dropping back to 0g) and then it takes 0.25 to 0.5sec to get back to full acceleration. I'm quite impressed by the Dragy's plotting software TBH as it makes describing what I "feel" during the event much easier to understand with a visual line to point at.

Most of the speeds and time are almost (or exactly) the same as previous so thats pretty consistent between runs using different devices, which is nice.

[jnrdavo]

What about a gearbox remap? Is that available?

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[IanH755]

The gearbox software has been remapped but that can only edit what software is already there, not install new software. So it can adjust things like the shift points, lock-up pressures etc but not add any new functions like Launch Control etc.