well guys its been about 3 months since i did my total S5 NA > S5 TII swap in my 91 brave blue coupe and over that last few weeks after fixing all the little idle problems, vac leaks and whatnot, we've noticed something slightly strange about the car. my mods list is below, but basically i just have a fuel pump, SAFC, TID, full exhaust. the car pulls pretty hard in the midrage, then the stock turbo starts choking and the boost falls off like most S5 turbos, but the midrage pull is quite impressive for 10-11 lbs..

here is the video of the car idling with a rev or two:

http://sweb.uky.edu/~alstal2/PICT0228.AVI

when buying a jspec you never know exactly what you're going to get and i think my motor is ported (this is what other people think) but i dont know how the different port jobs sound like... can anyone help me out here?

 

Possibly a medium to large streetport? I think you and I have talked about it at one point in time.

 

arn't turbos supose bo be quieter than N/As?

 

yes. i'd hate to hear an NA that has a straight 3" stainless exhaust with 2 bends going to a 3" inlet N1 muffler...

 

oh man that sounds badass

 

anyone else?

 

Really hard to tell by just a sound. My stock port N/A rumbled like that at idle with an open exhaust.

 

I could have told you, now i've got the same exhaust with a turbo and DP When the silencer is out it get's loud, but i havn't taken it out yet.

 

my car is actually kinda quiet with the silencer in it. its pretty nasty with it removed

 

My car is a ported n/a... sounds almost extactly the same at idle.

 

Sounds stock to me....Or a small streetport (which basically sounds stock anyway).

 

I have no port and my n/a sounds way louder than that... Might just be the exhaust I dunno.

 

i'm not talking about the volume, i'm talking about the lump in the idle

 

The lump could be many things...If you really want to know, just pull the lower intake and look with a light...Should be very obvious if the port was done properly.