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Hi all,

My first post on this board. I don't own an RS yet but I'm hoping to replace my M5 E39 with a heavier but more powerful station wagon next year.

There is an RS6 C6 for sale with a sleeved engine. Other upgrades include high pressure fuel pumps, larger turbochargers, exhaust, methanol/water injection and intercoolers which, supposedly, results in 950 hp. Nothing really out of the ordinary so it makes me wonder about the sleeves. I decided to ask since I couldn't find anything on this board or anywhere else about it, related to this or at least another Audi engine. There was a brief discussion for an R8 but that's about it.

Is the TT V10 in need of sleeves to produce power < 1000 hp? It doesn't seem to be, looking at what has been built. Is there anything speaking against sleeves for this particular engine? Are there perhaps cars that I have overseen with a sleeved engine?

"In need" - Not exactly but, while I don't know all of the other UK C6's with 900+ (less than 10) those few where I directly know the owner have not got sleeved engines. However I do know from the cylinder wall scrape in mine (at 105k miles, 12k of which was 900+) that the engines aren't bullet proof, so this one may/may not have been sleeved for added protection or as a repair to a damaged cylinder.

Spring rings overheat and lose tension on these, causing scoring of the bores, leading to excessive oil loss.
Sleeving is one way to repair it, but dont know of any 1k engines that have had it done for reinforcement.