IanH's 955hp V10 Audi RS6 - Another Car Diary!

[chuntington101]

Are there any uprated cams that could help extend the rpm range? Just thinking if you could hold the toque for longer the power would continue to climb.

[IanH755]

There's nothing off the shelf unfortunately. The tuning of these seems to be "fit bigger turbos" and thats it, no ported/polished heads, no cams or adjustable cam pulleys etc so no way to increase the flow of air other than "MORE BOOOOOOOST!"

[chuntington101]

IanH755 said:

There's nothing off the shelf unfortunately. The tuning of these seems to be "fit bigger turbos" and thats it, no ported/polished heads, no cams or adjustable cam pulleys etc so no way to increase the flow of air other than "MORE BOOOOOOOST!"

That's a shame! The other option would be to increase boost higher up the rpm range, but you have already said you are at about the max the turbos can flow and there is no room for larger units. What boost pressure does the car run at now?

[Tony Starks]

Just watching the 0-200 vid and I remember the old Top Secret Skyline/Supra doing similar times, but they weren't massive family wagons. Trips to the tip must be over before they've started

[Veeayt]

IanH755 said:

There's nothing off the shelf unfortunately. The tuning of these seems to be "fit bigger turbos" and thats it, no ported/polished heads, no cams or adjustable cam pulleys etc so no way to increase the flow of air other than "MORE BOOOOOOOST!"

If you contact Catcams, they can make you some bespoke CH gear, including pulleys, CAD and make cams (hollow, billet - you name it), tappets, lifters etc. Only speaking based on personal positive experience.

[IanH755]

A few pics from the lovely weekend weather -

[stuart-b]

Mental car, well done, looks great.

You mentioned going over to Germany and back, why not stay there for a weekend or 4 day long weekend and do it properly? Not sure I really understood the, go there, come back, in a day thing...

[IanH755]

I didn't explain it in my post but it was a spur of the moment decision made whilst I was at work because I suddenly realised I had no footage of it at 735hp and it was going to the tuners the next day so it was all very rushed, unplanned etc.

My next trip will be a proper one with planning and hotels and sleep etc

[IanH755]

Hi all, I needed to sort out my Exhaust after MRC fitted it offset by 3in to the right, causing the Left DP to bang on the gearbox mount on left turns on bumpy roads, plus causing all kinds of other fitment issues. I also had my removable eBay Cats fitted for the MOT later this week, lets see how well they work! It'll be going back to de-cat afterwards.

Plus a bonus Meyle HD front suspension kit pic.

[IanH755]

Well yeah, it probably is but not according to my car after a 45 minute A-road trip -



Fellow C6 RS6 owners will understand how strange this is but the pic below shows 255 miles already driven (a 200 miles a week B/A-road & Mway commute with another 55 miles of country road weekend fun) and I've still another 50+ miles left with no fuel light yet!!! -



Once I'd filled up I got this pretty ridiculous range figure -



Now the MPG figure will be down to the injectors which are bigger than stock and therefore have a lower duty cycle for the same amount of demand, which'll be throwing the OBC MPG calc's off but there is actually a noticeable improvement in the distance I get per tank. It used to be 1 tank per Mon-Fri for the commute with the fuel light on on Friday afternoon. Now I'm getting around an extra 30-50miles per tank with the same style of driving (measured over 3 weeks now) which is nice!

[VeegasRS6]

Surely that helps the man maths in justifying the cost of the upgrades!

Bloody impressive however you look at it though.

[Gallons Per Mile]

What is your real MPG then - assuming like you say that the OBC is incorrect due to different injectors/mapping? Have you done a fill/drive/fill cycle and done a rough 'real' MPG calc? Surely anything over 20 would be ridonculous?!

[MrBarry123]

The first and second pictures - the ones of the front of the car - look great.

[IanH755]

Real MPG is 18mpg combined, 23mpg Mway and 12-ish hooning on the road and if it's as bad as before then <10mpg on the track (all calc'd over 6-7 tanks of fuel by distance, not OBD)

Edited by IanH755 on Sunday 8th May 21:10

[problemchild1976]

well if it makes you feel better, i only get 22-25mpg in my BRAB

JJ

[Zombie]

Is that Slipknot and Theory of a Deadman I spy?

It doesn't look like there's much in the way of scilecers in there, what does it sound like? EPIC presumably...

[IanH755]

Good spot on the music!

The car normally has nothing from the turbos to the small backboxes (shoe boxed size - 30cm by 20cm) so the noise is epic, although maybe a little too loud 1st thing in the morning. The Cats however really mute the noise and blunt the "harshness" but I like that harsh sound so the de-cats will be going straight back on!

[griffin dai]

fking hell!!!!! Serious bit of kit!!

What size Garret or Holset would the TTE850's compare to?

More vids required! Have you timed a 60-100 on the new set up? Must be pretty ballistic

[IanH755]

Well flew though it's MOT but the hydrocarbons were close at 197ppm on a 200ppm limit. I just need to get it de-catted again on Friday as you can really feel the drop in power and noise from having the Cats fitted.

Griffin Dai -

Turbo size - I've no idea sorry
60-100mph - I've got some 100-200kph times (62-124mph) at around 6.4 seconds when it was still 735hp which puts it with the Carrera GT and Zonda R according to this website but I've not given it a go with 900+ yet. I though I'd posted this picture before but obviously not, here's some times recorded by RaceChrono timing software attached to a 10hz external GPS antenna (cheaper than a vbox but same accuracy) when it was still 735hp. After getting everything setup I forgot to turn the TCS off which is why the 0-60mph is slower than it should be for the power (with it off I've recorded around 3.6-3.8 seconds).

Edited by IanH755 on Tuesday 10th May 18:33

[renrut]

That is epic! I've never been a big fan of Audi generally but I have always loved the RS estates on principle. That you have one with comparable pace to genuine (2 seat!) supercars is astonishing!