Official RS5 supercharger thread!

It may not, some literature says DL511 for the S6/S7 and DL501 for the lower powered ROW A6/A7. Some say it is a misprint but I’d like to know for sure if the S6/S7 is the same housing, ie length as ours. Just means on a 4.0t conversion you would need the engine flywheel placed the same and then the OEM RS5 driveshaft (propshaft and front halfshafts) would all work. And you would think the extra 2 friction plates were installed because of the Torque difference between the RS5 and the S6/S7. Tuning benefit to sticking with the DSG would mean the engines ECU base code is tuned for the DSG, an A8/S8/RS6/RS7 motor would be tuned for a ZF 8HP.

1 Like

The DL501’s are all exactly the same dimensionally. The clutches are different and given more clutches, you’ll have more torque capacity. If I remember correctly, the diameter is different and the clutch basket may be different as well. If you swap clutch packs, I would think it’d require a custom tune to adjust the friction points, micro slip and other drivability parameters.

1 Like

If it does not blow out enough by itself, if youre likeminded to me, you can just sort of poke the ceramics out without engine out – has been done. Then see if you pass emissions where needed with a suitable fuel.

I have found 1-2 accounts of engine failues but they could be lemons due to valves dropping. max rpm 6800 should last

1 Like

As far as the S6/S7 DSG, I was only considering the use of it with a 4.0t which it was designed to work behind. Yes, the NSD & PWW were probably designed (oil pump for one) for the higher RPM’s of the CFSA and less friction plates due to the low torque of the motor. I do know 034 used the stock S4 DSG behind their 4.0t conversion, last I heard it was still running. But if I can get a S6/S7 DSG along with a 4.0t that is the route that I would prefer to take. My PWW has low miles and RS5 transmissions are getting hard to find (currently Audi says the are a year out at least if you wanted a new one). I sold the low mile NSD out of my parts car to a shop in N.H. as they had been on a waiting list from Audi for one of their customer cars and finally couldn’t wait any longer. No doubt there will be a market for a low miles 2015 PWW, as of now only 25~26k on it.

1 Like

6400 redline according to this. Max rev rs6 rs7 i googled to be 6800 . Panamera probably the same. You’d want the most solid S6 gearbox as well to tune it up then

It goes up to almost vmax in the 5th gear. I think gears 4 and up are all very high. Exhaust note does not seem great on the s6, might play in

1 Like

That’s about 15.7s to just over 124mph, pretty quick and that is the Avant which is definitely heavier than are car. I’d say that motor with a good tune in a B8.5 would easily do over 300kph and probably easily get into the 10’s with just a Stg2 tune.

1 Like

I also think that a stock motor 4.0tt with bolt ons and tune paired to the ZF8 can easily achieve 9’s when in a weight reduced B8.5 platform. One day I might achieve that. I see no reason to keep selling cars and buying used ones that are a few years newer. There’s a distinct change in quality in 2013 across almost every brand and I am drawn to 2011-2015 cars of every European brand. I think a 4.0tt deserves to be in the B8.5 as much as the CFSA. If Audi had put the 4.0tt in the B8.5 chassis there would have been no debate on the 2010’s greatest car ever. It would’ve smoked GTR’s and MKIV supras that owned the streets back then.

1 Like

Have to agree, almost everything has taken a downturn in terms of quality over the past decade or more. Either The Atlantic or the New Yorker did a fascinating article looking at that very topic, taking in the cost of inflation, globalization and a few other factors. There was another article by a woman who compared a bra she’d bought a decade prior. Bought the same bra but none of it was the same other than the cost. The company had taken measures to decrease production costs to keep the end cost within earshot of what it was a decade ago. Yet the bra didn’t last like the old one did and was quickly done in within a year. Consumers often don’t want to pay the increased cost for the same quality product due to historical economic bias. Then there’s the whole wage and economic disparity gap that’s zapped the middle class.

We live in the iPhone generation, a new model every year, where expensive tech is quickly outdated. At least my iPhone 4 still works. It’s so small I can’t read anything on the screen any longer (without glasses) but it comes in handy as a music-only device.

My only criticism of the 4.0TT is the overall nature of the motor isn’t as exciting from an aural and even drivability standpoint vs the CFSA. Race car drivers almost always prefer naturally aspirated motors for a reason. On top of that, a car is a system and as such, the engineering, top to bottom has to be equal. Otherwise you get a straight line monster and not much else. Or a widow maker. I had one of those. It made 603hp at the rear wheels and weighed about 2500 pounds with me in it. Blindingly fast, no traction control, it’d go sideways in 4th gear round 4500rpm when the GT42R turbo came on song (think dinner plate size). I could only stuff 285’s all around, nothing larger without flares, but being RWD, it simply wasn’t enough.

Not saying the RS5 couldn’t do with another 100hp/100ft lb. of torque but just make sure the rest of the package is improved as well.

It’s pretty good as is. Not a day goes by where I don’t drive it and hit redline a few times. No rule against having 2 of them :slight_smile:

Hate to keep interupting the Supercharger thread with more 4.0t thread but here is an impressive video of an S4 with a RS6/RS7 4.0t

Wasn’t sure about the gear ratios on the standard s6 box but does not matter if it’s that fast. Standard it shifts very predictably into 2nd at 50 kph, 3 100 kph, 4 150 kph and 200 kph 5 (exactly) could do with a tune to rev it higher imo. It’s an interesting tradeoff high rev vs engine life. I wonder at what price the RS6 engine can be bought. Quite a face lift putting into the b8 platform in my personal view :wink:

First customer car looks to be getting the supercharger installed now. Looking forward to some more visibility on the kit. I have more questions regarding bearing health, fueling, and current limitations.

1 Like

I’m friends with the owner of that car as he’s a long-time client. Excited to hear his thoughts.

Just a PSA, JHM is looking for two more people to have the SC installed at the shop. You’ll get a discounted price for the supercharger and installation (and it’s a very good price). If you 're interested, email me, sales@redmistracing.com and I can provide pricing/info and get you connected. The car must be in perfect working order and any issues with the car will need to be either fixed first or fixed there at JHM before the SC installation.

This will be a final run to make sure the instructions all make sense prior to kits being available to the general public. You can also purchase the full SC kit through me at www.redmistracing.com once the time comes.

You’ll be responsible for the car’s transportation to and from JHM so those that are closer, this is a pretty good deal. Or if you’re looking for a road trip, might be an awesome way to go about it.

2 Likes