danny_silva Posted May 20, 2008 Share Posted May 20, 2008 hi guys!! just fitted anew exhaust on my tt and it is very quite and i love it... my problem is how can i tell if it is too restricted?? my car still boost well @ 11psi!! when 2nd turbo kicks in i can ear like a whsssssss noise but car is fast and full boost!! it is only cat back!! Cheers Danny Link to comment Share on other sites More sharing options...
danny_silva Posted May 20, 2008 Author Share Posted May 20, 2008 bump... Link to comment Share on other sites More sharing options...
merckx Posted May 20, 2008 Share Posted May 20, 2008 how can i tell if it is too restricted?? my car still boost well @ 11psi!! 11 psi is 0.76 bar and is about what you would expect from a stock TT. Do you know what boost you were getting before fitting the exhaust? Link to comment Share on other sites More sharing options...
danny_silva Posted May 20, 2008 Author Share Posted May 20, 2008 the same!! it didnt change anything at all... i just want to know if the is a way to know if it is restricted or not!! and i think that whsssss noise is only the air movement... or im totaly wrong!! Link to comment Share on other sites More sharing options...
miko_supra Posted May 20, 2008 Share Posted May 20, 2008 i didnt think that just fitting a cat back did anything to the boost pressure as the cats are so restrictive any way Link to comment Share on other sites More sharing options...
danny_silva Posted May 20, 2008 Author Share Posted May 20, 2008 ok.. so it is just my impression!! lol.. i think im going a bit paranoid with keeping the car runing right!! lol Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 20, 2008 Share Posted May 20, 2008 The only way to be sure is measure the pressure in the exhaust after the turbos and before the rest of the system (complicated). Or just accept what your system gives you (easy) Link to comment Share on other sites More sharing options...
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