bodilx6 Posted June 18, 2011 Share Posted June 18, 2011 After a trackday, I'm certain the first turbo has changed in a way. It sounds different (more "turbo whine") when it spools from low revs and it feels like I'm lackinga bit of power (hard to tell for sure) untill the 2nd comes online. However, according to my boost gauge, all seems well with 0,7-0,9 bar around the 3000 rom going to 1-1,1 bar when the 2nd comes online. That seems to be "business as usual". I just have this nacking feeling that I might be a bit to sensitive but then again, I noticed it the first time I drove off driving normally. Is it possible that something has "changed" but it still produces the same (or very close to) the same boost? Thanks Quote Link to comment Share on other sites More sharing options...
bignum Posted June 18, 2011 Share Posted June 18, 2011 My twins always sounded louder/ more whistle after a trackday, still going strong on my uk spec that i sold. Quote Link to comment Share on other sites More sharing options...
Nic Posted June 18, 2011 Share Posted June 18, 2011 What air filter are you using? Could be that the compressor blades have been slightly damaged. Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted June 18, 2011 Author Share Posted June 18, 2011 Stock air filter and box. Just replaced to "lid" part of it to make sure it seals tightly. Quote Link to comment Share on other sites More sharing options...
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