10.9 Second S6 shopping list and advice.

[Boosted_six]

Hi all

Looking at the next project (currently in a mid/high 11 second B9 S4), in the UK low mileage 2018 S6's are really good value right now, this looks like a chance to drive a V8 before they are outlawed...

I'm thinking the minimum list is going to be:

* DS1 software
* RS7 intake
* RS7 turbo cartridges (SRM / HPA?)
* HFC downpipe (Redstar?)
* Bigger coolant pump

That should be good for low 600bhp and scraping out a 10.99 I'm led to believe?

Assuming this list sounds sane / adequate as a starting point, my next job is to do a bunch of research and understand the practicalities at hand. The main question I have however is for the replacement turbo cartridges, once all the intake stuff and oil lines are out the way, can you easily change the turbine and housing without having to remove all the exhaust side manifolds etc? Is this a DIY job for someone with medium skill?

Thank you!

[MattyMarkey]

Hi all

Looking at the next project (currently in a mid/high 11 second B9 S4), in the UK low mileage 2018 S6's are really good value right now, this looks like a chance to drive a V8 before they are outlawed...

I'm thinking the minimum list is going to be:

* DS1 software
* RS7 intake
* RS7 turbo cartridges (SRM / HPA?)
* HFC downpipe (Redstar?)
* Bigger coolant pump

That should be good for low 600bhp and scraping out a 10.99 I'm led to believe?

Assuming this list sounds sane / adequate as a starting point, my next job is to do a bunch of research and understand the practicalities at hand. The main question I have however is for the replacement turbo cartridges, once all the intake stuff and oil lines are out the way, can you easily change the turbine and housing without having to remove all the exhaust side manifolds etc? Is this a DIY job for someone with medium skill?

Thank you!

You’ll need a TCU tune to achieve those numbers. Plus, it may save you a clutch replacement for a bit - the DL501 will not be able to handle the torque levels alone.

If you have E85 near you, many have seen running cooler temps and HP gains.


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[ry0t05]

There's a guy that hit mid 10s with stock turbos and full weight. Aggressive custom ECU and TCU tunes with ethanol would get you there. Your list is adequate, though you may need custom tunes as well.

[MattyMarkey]

Stock turbos may be a ticking time bomb - over spin fatigue has happened.

Don’t forget about the oil screen - do something with it - remove or relocate; big debate which is still the best option.


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[John@DEADBEEF_DynoSp]

In the UK when it is cool and with 99 RON fuel you can do OK, but the S6 is a higher compression engine than the S8/RS6/RS7 so can be disappointing for results if you use pump petrol only and don't have some methanol in the tank or water methanol injection. The 4.0T charge cooling is really poor and whilst the UK climate is never properly hot, the charge temperatures in summer can get too hot and really kill performance.

With good conditions and good technique one guy got 10.8 in the US with E85 on an A8 with RS7 turbos and intakes and downpipes without pushing hard as he was just using an OTS map that is designed for harder use than just best quarter mile acceleration.

We have higher staged OTS maps that push RS7 turbos hard, but they need supporting octane and ideally cooling. There is a tendency to push 4.0T engines really hard because they are tough, but people end up crossing the quarter mile with silly charge temperatures just holding out to get another tenth or mph. It is quite short term thinking in terms of reliability and can encourage grenade style tuning.

Do have a look at the S8 too, they are also good value and a somewhat better base to modify.

[dealermaintnd]

Hi all

Looking at the next project (currently in a mid/high 11 second B9 S4), in the UK low mileage 2018 S6's are really good value right now, this looks like a chance to drive a V8 before they are outlawed...

I'm thinking the minimum list is going to be:

* DS1 software
* RS7 intake
* RS7 turbo cartridges (SRM / HPA?)
* HFC downpipe (Redstar?)
* Bigger coolant pump

That should be good for low 600bhp and scraping out a 10.99 I'm led to believe?

Assuming this list sounds sane / adequate as a starting point, my next job is to do a bunch of research and understand the practicalities at hand. The main question I have however is for the replacement turbo cartridges, once all the intake stuff and oil lines are out the way, can you easily change the turbine and housing without having to remove all the exhaust side manifolds etc? Is this a DIY job for someone with medium skill?

Thank you!

I run 10.49 on rs7 cartridges and downpipes only (SRM ECU and TCU)

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[c13thx]

Hi all

Looking at the next project (currently in a mid/high 11 second B9 S4), in the UK low mileage 2018 S6's are really good value right now, this looks like a chance to drive a V8 before they are outlawed...

I'm thinking the minimum list is going to be:

* DS1 software
* RS7 intake
* RS7 turbo cartridges (SRM / HPA?)
* HFC downpipe (Redstar?)
* Bigger coolant pump

That should be good for low 600bhp and scraping out a 10.99 I'm led to believe?

Assuming this list sounds sane / adequate as a starting point, my next job is to do a bunch of research and understand the practicalities at hand. The main question I have however is for the replacement turbo cartridges, once all the intake stuff and oil lines are out the way, can you easily change the turbine and housing without having to remove all the exhaust side manifolds etc? Is this a DIY job for someone with medium skill?

Thank you!

Good to see another UK guy on the S6 band wagon

I have the DS1 on Stage2 with Peron 3.5 inch decat and milltek non res cat back current with the SRM intake and its amazing in current climate but what John said is completely right come summer time without meth it cripples the performance. You get a couple of good pulls and that's it heat soak.

I have the SRM +4mm lined up to go in and just about to purchase aquamist hfs-4 to go with it for the cooling mainly but added octane will benefit for sure.

For me I had the bigger pump but felt no benefit so will see what comes in the form of air to air in the future but hoping for now the water meth will drop the temps enough to get a little more run time before losing so much to heat.

With just what I have currently alone its a whole world of difference and the DS1 like John said is solid not only for keeping the car within its limits safely but just wakes it up to what it should be. If your big into your cars what the DS1 brings with tune abilities also is next level for seeing what is actually going on in real time.

I'll be sticking with the OTS for now but when the time comes with the DS1 at least I can just get it done remotely with a solid tuner rather than having to lose the car for a day and drive out of my way.

That's my 2 pence anyway but like you said enjoying the V8 while it lasts is the main thing.

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[Optimus247]

I run 10.49 on rs7 cartridges and downpipes only (SRM ECU and TCU)

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What ...??

Stock air intake (filter and tubes) ...?

[dealermaintnd]

What ...??

Stock air intake (filter and tubes) ...?

I made a big 3 inch intake with filters but it didn't help much so I run stock airbox. Realllllllly want the SRM inlets to help get my compressor rpm down. Where I am I have extremely low DA so I get results that are impossible in warmer climate

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[Dasquade]

I mostly can understand your point going for S6 versus RS6/S8 as prices on the S are definatly more affordable. Went for S6 here in Belgium aswell few years ago, for roughly 20.000€ back then i found an S6 as good as fully loaded with options with ceramic brakes compaired to a semi loaded RS6. Definatly worth it and don't regret at all, especially it is more of a sleeper....but yeah, when it comes to performance, the RS/S8 difference in terms of engine and trans are pretty big :). But can't go wrong with both imho, just need to accept once you go stage 2 or higher, you will need to throw bigger money to support the performance!

[Sinister6]

I run 10.49 on rs7 cartridges and downpipes only (SRM ECU and TCU)

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No kidding, that's awesome.

I'm going RS7 turbos very soon as well. I'm currently full bolt-on stage 2 so I'd be extremely happy with 10.5 (ish)

What kind of tire were you running at the time?

[dealermaintnd]

No kidding, that's awesome.

I'm going RS7 turbos very soon as well. I'm currently full bolt-on stage 2 so I'd be extremely happy with 10.5 (ish)

What kind of tire were you running at the time?

Stock spec p0's on stock black optics wheels. Minnesota DA 100 - -100 and 30 degrees

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[Sinister6]

Stock spec p0's on stock black optics wheels. Minnesota DA 100 - -100 and 30 degrees

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Nice work! I'm in Wisconsin and I'm running a lighter HRE with Michelin PS 4S.

[dealermaintnd]

Nice work! I'm in Wisconsin and I'm running a lighter HRE with Michelin PS 4S.

All I can say: launch rpm 3000, LLRMR(launch torque in NM) 300. This is the key to going fast.

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[Sinister6]

All I can say: launch rpm 3000, LLRMR(launch torque in NM) 300. This is the key to going fast.

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Thank you for the advice...I was not sure where to set the LC. I believe I currently have it set at 4K RPM.

[dealermaintnd]

If you dont change that launch torque in the ecu tune it will just spin every launch and barely break 2.0 60ft

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[Sinister6]

If you dont change that launch torque in the ecu tune it will just spin every launch and barely break 2.0 60ft


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Okay, 300 NM is approximately 225 ft lbs?

[dealermaintnd]

Okay, 300 NM is approximately 225 ft lbs?

I dont think this value is corrected or accurate, im just telling you what number worked for me in the ecu tune. You might be able to turns yours up more. But the stock 360 is wayyyyyyy too high for any tire.

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[MattyMarkey]

Nice work! I'm in Wisconsin and I'm running a lighter HRE with Michelin PS 4S.

Nice work indeed - boost weather for sure at 30degrees lol. You may want to use this set-up in warmer weather, so likely the DA won’t be the same as the other member.

PS4S’s cannot be used in temps below 40degrees - per Michelin


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[dealermaintnd]

Nice work indeed - boost weather for sure at 30degrees lol. You may want to use this set-up in warmer weather, so likely the DA won’t be the same as the other member.

PS4S’s cannot be used in temps below 40degrees - per Michelin


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Do a burnout launch first, thats what I do.

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[Sinister6]

Nice work indeed - boost weather for sure at 30degrees lol. You may want to use this set-up in warmer weather, so likely the DA won’t be the same as the other member.

PS4S’s cannot be used in temps below 40degrees - per Michelin


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For sure, The race that I signed myself up for will be taking place late June. looking for every advantage.

[MattyMarkey]

Do a burnout launch first, thats what I do.

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Just making a distinction with Sinister6’s set-up versus the temperature you did your run - his tire set-up is not ideal in 30degree temps.


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[dealermaintnd]

Just making a distinction with Sinister6’s set-up versus the temperature you did your run - his tire set-up is not ideal in 30degree temps.


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Do you think mine is? Far from it.

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[Sinister6]

Do you think mine is? Far from it.

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Were you still spinning hard out of the hole on your 10.4 run?

I'm curious what the peak of the S6 (with RS turbos) performance is. A 10.4 has to be close...perhaps a tenth or two better?

[dealermaintnd]

Were you still spinning hard out of the hole on your 10.4 run?

I'm curious what the peak of the S6 (with RS turbos) performance is. A 10.4 has to be close...perhaps a tenth or two better?

With the 300nm launch in the winter I get some spin yes, after warming tires up with a fake launch its more of a chirp. In the summer it will grip and go most of the time

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[Sinister6]

With the 300nm launch in the winter I get some spin yes, after warming tires up with a fake launch its more of a chirp. In the summer it will grip and go most of the time

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Thank you for the insight

[skiptowncat]

Good to see another UK guy on the S6 band wagon

I have the DS1 on Stage2 with Peron 3.5 inch decat and milltek non res cat back current with the SRM intake and its amazing in current climate but what John said is completely right come summer time without meth it cripples the performance. You get a couple of good pulls and that's it heat soak.

I have the SRM +4mm lined up to go in and just about to purchase aquamist hfs-4 to go with it for the cooling mainly but added octane will benefit for sure.

For me I had the bigger pump but felt no benefit so will see what comes in the form of air to air in the future but hoping for now the water meth will drop the temps enough to get a little more run time before losing so much to heat.

With just what I have currently alone its a whole world of difference and the DS1 like John said is solid not only for keeping the car within its limits safely but just wakes it up to what it should be. If your big into your cars what the DS1 brings with tune abilities also is next level for seeing what is actually going on in real time.

I'll be sticking with the OTS for now but when the time comes with the DS1 at least I can just get it done remotely with a solid tuner rather than having to lose the car for a day and drive out of my way.

That's my 2 pence anyway but like you said enjoying the V8 while it lasts is the main thing.

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Make that 2 UK guys, picking mine up tomorrow 👍

[MattyMarkey]

Do you think mine is? Far from it.

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Does your tire manufacturer specifically call out “Do not use in temperatures below 40degrees”???

Because Michelin does for the PS4S. Exactly the distinction being made.


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[dealermaintnd]

Does your tire manufacturer specifically call out “Do not use in temperatures below 40degrees”???

Because Michelin does for the PS4S. Exactly the distinction being made.


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Yes, use below 45 degrees voids the warranty on the p0's. I can confirm they perform pretty poorly in the cold too. But if you warm them up with a spinning launch they do alright

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[Skipperdawg]

I've gone 10.53 on mine.

Mods are:
DS1 on 4x tune
SRM TCU tune
RS7 turbos
SRM inlets
SRM stage 1 coolant pump
APR Downpipes

on 104 file. I imagine running lower octane, but with ethanol, you should definitely be in the 10s. I've broken into the 10s on 93 octane with a DA of around 2500 before if that helps for reference.

[Boosted_six]

Thanks for the feedback all.

Just some thoughts overall:

The DSG gearbox while it doesn't exactly love monster torque, it don't seem particularly fragile? I think it will be fine with some sympathy right?

I have 94aki/99ron fuel for the daily that can be bumped 2-3 points with a slosh of Boostaine when required. Ethanol is not really an option.

The car was built in the summer of 2018 so has the latest revision oil screen.

I'm trying to find a UK supplier for the RS6/7 turbo cores and compressor. I'm not sure 2 grand is good value for an OEM core and cover shipped over from the USA. There are lots in China for cheap cheap, but I'm not that brave.

[skiptowncat]

Thanks for the feedback all.

Just some thoughts overall:

The DSG gearbox while it doesn't exactly love monster torque, it don't seem particularly fragile? I think it will be fine with some sympathy right?

I have 94aki/99ron fuel for the daily that can be bumped 2-3 points with a slosh of Boostaine when required. Ethanol is not really an option.

The car was built in the summer of 2018 so has the latest revision oil screen.

I'm trying to find a UK supplier for the RS6/7 turbo cores and compressor. I'm not sure 2 grand is good value for an OEM core and cover shipped over from the USA. There are lots in China for cheap cheap, but I'm not that brave.

As long as you're not launching it everywhere then it should be fine for the occasional lunatic driving.

I'm looking into doing a 20% methanol blend when I get my DS1 which should yield decent results, you can get it delivered in 25l drums off ebay

As for turbos, hit this guy up and see what he can do to your existing turbos for you

https://en-gb.facebook.com/Turbo-Ber...2262361478082/

[Sinister6]

Thanks for the feedback all.

Just some thoughts overall:

The DSG gearbox while it doesn't exactly love monster torque, it don't seem particularly fragile? I think it will be fine with some sympathy right?

I have 94aki/99ron fuel for the daily that can be bumped 2-3 points with a slosh of Boostaine when required. Ethanol is not really an option.

The car was built in the summer of 2018 so has the latest revision oil screen.

I'm trying to find a UK supplier for the RS6/7 turbo cores and compressor. I'm not sure 2 grand is good value for an OEM core and cover shipped over from the USA. There are lots in China for cheap cheap, but I'm not that brave.

Have you looked at CTS Turbo? They have the RS7 turbos on sale for $1,445.00 USD.

https://www.ctsturbo.com/product/cts...s7-s8-rs6-rs7/

I too have a 2018 S6 with the revised oil screen, but for safety purposes, I'm still going to do the external oil screen relocation kit.

https://jhmotorsports.com/stainless-...8-s8-4-0t.html

[skiptowncat]

Have you looked at CTS Turbo? They have the RS7 turbos on sale for $1,445.00 USD.

https://www.ctsturbo.com/product/cts...s7-s8-rs6-rs7/

I too have a 2018 S6 with the revised oil screen, but for safety purposes, I'm still going to do the external oil screen relocation kit.

https://jhmotorsports.com/stainless-...8-s8-4-0t.html

3.5% import tax plus 20% VAT + shipping costs to the uk...gets expensive!

[Dasquade]

3.5% import tax plus 20% VAT + shipping costs to the uk...gets expensive!

Maybe check with TurboSystems, they are Europe....but if not mistaken since you guys had the Brexit there is again import costs on European stuff afaik and recently read in the newspaper (i'm from Belgium).
For what it is worth, might want to check that UK turbo shop, forgot the name but a Youtuber got a hybrid one from them (the guy that broke his axle before doing the swap) and sold his RS6 little after he installed the hybrids. They told it was not a crazy top end turbo, but allowed quick spooling.

[skiptowncat]

Still have to pay the VAT whatever it is, now if you can get the company to mark down the value of the goods however....

That link I posted is a decent fella, he did loads of hybrids and upgrades for the Mazda platform.

[choppedfish]

Maybe check with TurboSystems, they are Europe....but if not mistaken since you guys had the Brexit there is again import costs on European stuff afaik and recently read in the newspaper (i'm from Belgium).
For what it is worth, might want to check that UK turbo shop, forgot the name but a Youtuber got a hybrid one from them (the guy that broke his axle before doing the swap) and sold his RS6 little after he installed the hybrids. They told it was not a crazy top end turbo, but allowed quick spooling.

This guy?

https://youtu.be/TU3_YAgSQns

[Dasquade]

This guy?

https://youtu.be/TU3_YAgSQns

Yes, Turbo Technics.

[Boosted_six]

Please don't lynch me... I've decided to head back to BMW with a 4.4L twin turbo V8

[John@DEADBEEF_DynoSp]

Please don't lynch me... I've decided to head back to BMW with a 4.4L twin turbo V8

I'd have one already if I had faith in the rods not to bend. Audi have their fair share of problems too though.