IanH's 955hp V10 Audi RS6 - Another Car Diary!
Discussion
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
My next trip will be a proper one with planning and hotels and sleep etc
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.
Plus a bonus Meyle HD front suspension kit pic.
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!
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!
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!
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).
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
Just been told I made the front page of PH as "readers car of the week", which is nice. There's a few things wrong in the story but if you read through this thread you'll get a good idea of what I've done.
big_rob_sydney - It's not really a 1/4 mile car as its too heavy (2.2tons), a slush box automatic (no L/C) and a lot of torque to cope with when the wheels won't spin on a grippy drag strip so I've not bothered. However when it was still 735hp I did a concrete drag strip and recorded 11.14sec at 127mph which is a bit quicker than a real strip would show. My guess would be around 11.5sec at 120mph of a proper strip.
Striple - Yeah the insurance went up around 50% but it was already cheap on the stock car (<£350) so it's not that much considering I was paying £1K+ on an R34 I had, the benefits of age and great postcode!
Smilo996 - The two stages were absolute opposite ends of the scale. The 580 to 735hp stage 2 cost £2k where as the 735 to 920hp stage 2 cost nearly £18k so "valve vs performance" means stage 2 is a winner every single day for 99.9% of owners.
big_rob_sydney - It's not really a 1/4 mile car as its too heavy (2.2tons), a slush box automatic (no L/C) and a lot of torque to cope with when the wheels won't spin on a grippy drag strip so I've not bothered. However when it was still 735hp I did a concrete drag strip and recorded 11.14sec at 127mph which is a bit quicker than a real strip would show. My guess would be around 11.5sec at 120mph of a proper strip.
Striple - Yeah the insurance went up around 50% but it was already cheap on the stock car (<£350) so it's not that much considering I was paying £1K+ on an R34 I had, the benefits of age and great postcode!
Smilo996 - The two stages were absolute opposite ends of the scale. The 580 to 735hp stage 2 cost £2k where as the 735 to 920hp stage 2 cost nearly £18k so "valve vs performance" means stage 2 is a winner every single day for 99.9% of owners.
Edited by IanH755 on Friday 13th May 19:40
Nokia N95 - It's connected via bluetooth to an external 10hz GPS Sensor. The newer Android version of the RaceChrono software doesn't have any performance tests so I had to buy the N95 from eBay a few years ago just to run the Symbian version. I was using it with a military/ex-miltary rally team I was in (in-car camera, GPS & datalogging etc).
Rob - To get to 11.5-ish needed 735hp-740lbs/ft which is £2k for 2 remaps (ECU & Gearbox ECU), air filters and a bypass of the "main" cats (also called the secondary cats) just leaving the post-turbo pre-cats fitted.
My C5 RS6 (V8 Twin Turbo) had 500hp and did a Santa Pod measured 13.02sec @ 107mph and the software on the N75, measured over 6-7 runs, came back with around 12.75sec @ 110mph so the software/10hz GPS combo is pretty accurate (slower launch on the grippy drag strip and ET cal'c over last 60ft so slower too).
My C5 RS6 (V8 Twin Turbo) had 500hp and did a Santa Pod measured 13.02sec @ 107mph and the software on the N75, measured over 6-7 runs, came back with around 12.75sec @ 110mph so the software/10hz GPS combo is pretty accurate (slower launch on the grippy drag strip and ET cal'c over last 60ft so slower too).
Edited by IanH755 on Saturday 14th May 22:34
Msportman said:
Great stuff Ian.
Any vids yet of it 900bhp form??
What did they do to strengthen the box?
I assume a stage 2 car's gearbox will cope time and time again with just a software upgrade?
Seems a great value package even on stage 2 as a tourer and some fun on track! Have you done Castle Combe in her yet as I always attend the Audi Driver magazine event? It's quite a bumpy track and I suspect the straight is a bit too short before you start braking into Avon Rise before Quarry bend!
I was out in TSR's 550bhp Cupra last October which is racing this year.....thought that was rapid ......900bhp must be breathtaking!!
18k looks like good value for what's available......you must have a good job!!
How does it compare to a tweeked GTR??
Ok so lots of questions, I'll answer them all separately - Any vids yet of it 900bhp form??
What did they do to strengthen the box?
I assume a stage 2 car's gearbox will cope time and time again with just a software upgrade?
Seems a great value package even on stage 2 as a tourer and some fun on track! Have you done Castle Combe in her yet as I always attend the Audi Driver magazine event? It's quite a bumpy track and I suspect the straight is a bit too short before you start braking into Avon Rise before Quarry bend!
I was out in TSR's 550bhp Cupra last October which is racing this year.....thought that was rapid ......900bhp must be breathtaking!!
18k looks like good value for what's available......you must have a good job!!
How does it compare to a tweeked GTR??
Vids - Nothing yet, it'd break every UK speed limit in less than 4 seconds of full throttle so taking a video probably isn't the cleverest of things so I'll wait until I get back over to Germany in the Summer.
Gearbox - Uprated friction plates (exedy I think), uprated input & intermediate shafts and basket, uprated valve body assy for better control of the shifts and uprated torque converter. The OEM gearbox will cope with stage 2 all day long, MRC haven't yet seen a failure of one.
Castle Combe - I'm waiting for a set of AP Racing 410mm discs/calipers before I go back out on track as the OEM sized AP Racing discs I currently have would struggle I think.
GTR - No idea
The last GTR I went in was my friends which had around 650hp but it was 4 years ago I think so I cant really compare it, although the RS6 gearbox is slower than the DCT type one in the GTR, plus there's no launch control etc so it'll probably be slower from 0mph but from 100mph+ I'd guess it'd really pull away with nearly 300hp extraOn Friday I'd noticed that, either the car was a bit down on power or that maybe I'd got really used to it, after I took a couple of friends for a drive. It was still quick to them but it felt back at mid 700hp levels to me.
I logged some values with VCDS and saw it was pulling timing due to elevated intake heat which was unexpected as the day was cool and it was the first "full throttle" of the day so it wasn't heat soak. After some serious head scratching I found the most unlikely culprit - I'd been showing my friends the Aquamist Water Injection gauge which lives in my glove box and had taken the protective cover off and forgotten to refit it before closing the glove box and at some point the pair of 3D glasses I keep in there (for the cinema) had bumped into the On/Off button on the front of the gauge and switched off the WI, which explains the higher intake temps. After a pretty epic actual facepalm (it hurt) I switched it back on and took it for a spin and was back at 900+ level.
So, I've decided to move it from it's current position. The reason it's in the glove box is that I don't need to see it because the water/meth "reservoir" is my windscreen washer bottle so I have the cars own level sensor to tell me if/when the level is low. Plus there is literally nowhere else "easy" to put it without using a ugly A-Pillar or Dash pod mount. I've seen a car with it in the front ashtray which looks great but it was a huge pain to get fitted and the air vents are narrower than the gauge so I can't use a Vent Gauge either.
Burwood - That was the plan about 7-8 months ago but as mentioned in a November '15 post the seller (German eBay) dropped out over shipping issues and the moeny I saved allowed me to buy the uprated Gearbox instead.
I logged some values with VCDS and saw it was pulling timing due to elevated intake heat which was unexpected as the day was cool and it was the first "full throttle" of the day so it wasn't heat soak. After some serious head scratching I found the most unlikely culprit - I'd been showing my friends the Aquamist Water Injection gauge which lives in my glove box and had taken the protective cover off and forgotten to refit it before closing the glove box and at some point the pair of 3D glasses I keep in there (for the cinema) had bumped into the On/Off button on the front of the gauge and switched off the WI, which explains the higher intake temps. After a pretty epic actual facepalm (it hurt) I switched it back on and took it for a spin and was back at 900+ level.
So, I've decided to move it from it's current position. The reason it's in the glove box is that I don't need to see it because the water/meth "reservoir" is my windscreen washer bottle so I have the cars own level sensor to tell me if/when the level is low. Plus there is literally nowhere else "easy" to put it without using a ugly A-Pillar or Dash pod mount. I've seen a car with it in the front ashtray which looks great but it was a huge pain to get fitted and the air vents are narrower than the gauge so I can't use a Vent Gauge either.
Burwood - That was the plan about 7-8 months ago but as mentioned in a November '15 post the seller (German eBay) dropped out over shipping issues and the moeny I saved allowed me to buy the uprated Gearbox instead.
Edited by IanH755 on Sunday 22 May 21:26
I popped back to MRC yesterday to have a bunch of "post re-build" niggles sorted and then stayed for the AudiSRS forum Dyno day today where it made a much more respectable (and expected) 890hp and 1080nm which is more like the figures I was expecting rather than the 780hp at the earlier Surrey Rolling Road which I found out was caused by me accidentally switching the water meth injection off, doh!.
I did about a dozen passenger runs in the end too which are always a highlight for me
I did about a dozen passenger runs in the end too which are always a highlight for me
Edited by IanH755 on Saturday 28th May 21:49
Richyvrlimited said:
I imagine it is used for both, that's what I did when I ran WI anyway
Yeap thats what I do, methanol (or similar) is already used in most screenwashes in a very diluted mix (<20%) along with all the detergents, colours and scents etc so I've effectively got super strong "pure" screenwash now I actually find it's better at cleaning the screen than the pre-mix Halfords Purple screenwash I was using before too.
Update time - New brakes arrived!!!!
AP Racing 410mm discs mated to Radi-Cal CP8522 Calipers mounted on custom made brackets by BG Developments who do all of AP Racings Customs work. I've also got AP Racings DS-25pads (Ferodo DS2500 compound), HEL brake lines and Castrol SRF fluid.
I'm doing the ASDA charity trackday again on the 6th so, now I've got an extra 180hp over last year, we'll see how they cope with multiple 175+ to 30mph stops. Last year when I was at 730hp the OEM Caliper with AP- Racing 390mm discs, DS2500 pads and ATE Superblue fluid it did 49 160+ to 30mph stops with only a tiny bit of fade in stopping power but a longer pedal travel throughout the day so I'm hoping for much better from these.
Once I get these fitted on the 2nd I'll put up a full review with more pics and fitting guide etc.
AP Racing 410mm discs mated to Radi-Cal CP8522 Calipers mounted on custom made brackets by BG Developments who do all of AP Racings Customs work. I've also got AP Racings DS-25pads (Ferodo DS2500 compound), HEL brake lines and Castrol SRF fluid.
I'm doing the ASDA charity trackday again on the 6th so, now I've got an extra 180hp over last year, we'll see how they cope with multiple 175+ to 30mph stops. Last year when I was at 730hp the OEM Caliper with AP- Racing 390mm discs, DS2500 pads and ATE Superblue fluid it did 49 160+ to 30mph stops with only a tiny bit of fade in stopping power but a longer pedal travel throughout the day so I'm hoping for much better from these.
Once I get these fitted on the 2nd I'll put up a full review with more pics and fitting guide etc.
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