RS6 C7 | 800+ BHP

[finance-nick]

Looks MRC is getting closer at finalizing their charge cooler (for those who have money!)

Yes indeed, exciting times as could release alot of extra power, the heat soak is killing this engine

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[DXB_RS6]

I've been talking to the guys at Heat Shield and sent images of the engine bay for an engineer to recommend the best products.

Here is the reply:

Wow. They don’t leave you much room in that engine compartment.

First up, covering the hot side of the turbos with our Lava turbo shields

https://www.heatshieldproducts.com/auto ... rbo-shield

Next, all the exhaust piping with our Heatshield Armor material. Covering this with our thermal barrier will help to drastically cut underhood temps, reducing the amount of heat the engine is soaking up and how much the cooling system has to dissipate.

https://www.heatshieldproducts.com/auto ... ield-armor

If the Heatshield Armor won’t work for these areas, our Lava Exhaust Wrap will be the next best choice

https://www.heatshieldproducts.com/auto ... haust-wrap

To help the intercooler, I would recommend using our Lava Tube material to install around the intercooler lines in the engine compartment, to shield them from heat and help the coolant stay colder as it travels towards the intercooler.

https://www.heatshieldproducts.com/auto ... ube-sleeve

For the air intake piping, I’d recommend our Thermaflect Sleeve, to protect those pipes from heat soak and heating the air traveling through them before reaching the engine.

https://www.heatshieldproducts.com/auto ... eve-velcro



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[dasquade]

Nice .
Did they said what Lava turbo shield will fit our turbo?
The rest is doable but would require to remove several parts. I do think it all would benefit as audi didnt do much effort to cover most line, pipes or parts against heat.

[dasquade]

Not sure if i posted before, but after driving my car 1 houre non stop with EGT around 770-800 EGT, my thermo coated catless downpipes where 230°C surface temp 5 seconds after shutting down engine.

[dasquade]

I guess for the manifolds we can use the same material they suggest for exhaust pipes right?
Will look a bit what is possible and try to get an estimated price for most of it.

[DXB_RS6]

Nice .
Did they said what Lava turbo shield will fit our turbo?
The rest is doable but would require to remove several parts. I do think it all would benefit as audi didnt do much effort to cover most line, pipes or parts against heat.

I'll check with them for the turbo fitment.

Yes, the rest could be a ball ache to get too.



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[finance-nick]

They won't do an RS6 specific turbo shield IMO, the turbo housings are huge on these as they are part of the downpipe, and would be very surprised if one existed. I too have been talking to them, basically i plan to get the lava header armour .5" and use it as a blanket, not much room but will fit.

Its important its fitted all the way up to the back of the turbo's - this will be the biggest gain by far from all the recommended bits above as this will protect the cold side of the turbo AND the cold air feeding the turbo's - it one hit.

You can also use the very same stuff to wrap your downpipes, as ceramic coating only holds back 30% heat max, this stuff holds back 80%,

You can even get them in gold now !!!
.

[DXB_RS6]

Changed the spark plugs today so got a few snaps of the engine bay. You can see how tight it is! Here's a video also : https://youtu.be/j4WwooyWjLY[IMG]https: ... 8f1b09.jpg[/IMG]

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[dasquade]

I know how tight it is in there (did downpipes and plugs aswell).
I guessing manifold, downpipes and turbo shielding might be the most important. Then shielding the cold (and warm) pipes of the turbo cooling (oil/coolant). Maybe warm side of airbox aswell (easy one). The rest might be all very hard and intense to wrap (lower coolant lines etc). Still wondering if we couldnt exrta cool the coolant reservoir (big tank we might be able to watercool?).
Anyway, definatly something i try to look in.
Currently still have 100% G12 coolant, tought mixing it with water (destilated?) helps cooling more.

[dasquade]

I did some rough measurements, looks 2 sheets 18" 24" for turbo's/manifolds and 1 (or 2) sheets 10" 36" for downpipes (depending how far you want to wrap them.
More or less brings it on +-420€ (or 610€)..hm :s. Getting pricey for just some heat insulation, i'm sure it helps a lot and maybe why audi cheaped out on that material. Prices are taken from ebay, 1/2 thickness (better thicker then do a half job).
The left overs would be good for the oil/coolant lines to the turbo's.
Interesting fact, but was recording some temps after the car was in garage for already some time...most stuff was around 50-55°C. The 'cold' side of the turbo's are aluminium if not mistaken, those were still 70°C . Fact is aluminium picks up and holds heat longer then cast metal, no wonder IAT before the throttle body gets so high.
Anybody knows 'cheaper' source?

[finance-nick]

I did some rough measurements, looks 2 sheets 18" 24" for turbo's/manifolds and 1 (or 2) sheets 10" 36" for downpipes (depending how far you want to wrap them.
More or less brings it on +-420€ (or 610€)..hm :s. Getting pricey for just some heat insulation, i'm sure it helps a lot and maybe why audi cheaped out on that material. Prices are taken from ebay, 1/2 thickness (better thicker then do a half job).
The left overs would be good for the oil/coolant lines to the turbo's.
Interesting fact, but was recording some temps after the car was in garage for already some time...most stuff was around 50-55°C. The 'cold' side of the turbo's are aluminium if not mistaken, those were still 70°C . Fact is aluminium picks up and holds heat longer then cast metal, no wonder IAT before the throttle body gets so high.
Anybody knows 'cheaper' source?

There is always cheaper but not better, this is the best stuff out there. You'll be surprised what happens to temps when your full throttle !!

[dasquade]

I understand and know (cheaper often is waste of money) and fully know what heat it porduces.
*S6 stage 2: IAT before throttle body 20°C -> 140°C under WOT! (as far as i know this is instant engine bay heat + turbo heat! Luckly the charge cooler etc cools the IAT manifold back to 50-60°C before it gets used, but still).

[finance-nick]

Needs to be more like 20c MAX, anything over 40c is classed as horrible heatsoak !!

[DXB_RS6]

Are you chaps going to a stage 3 and upgrading turbo's etc?

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[dasquade]

Decided to order 2 sheets Heatshield Armor Downpipe Shield Kit ½" x 10" x 36" (155.82£ shipped to Belgium).
In the first place to wrap the manifolds and hot side turbo's. Not sure if wrapping the cold side is a good thing (the aluminum might be better of unwrapped).
I'll see how far i get with those 2 sheets, maybe with the rest i should be able to cover half of my downpipes and the oil/coolant pipes of turbo's. Altough maybe again it is best not to cover the hot lines so heat isn't trapped, but cove the inlet lines and prevent them from heat).
Will see how it goes...