at Mahdavi. All I can say is I can't stop doing this : . Engine sounds nice, love how the turbo is spooling faster, but there's some noise from 4,500 to around 6500 rpm. its sorta like clicking, but it's discreet. Could that be a leak, or will it be the turbo spooling? I'm still a n00b lol
no it doesn't sound like a turbo spooling up, it's like a real rapid click click click, and it sounds like its coming from the general area of the uppipe/turbo. but it doesn't happen when I hit the gas in neutral, just pulling in 2nd or higher
does it increase with speed? or is it just related to rpm? ur turbo won't produce much boost in neutral or 1st so if its just making the sound in 2nd or higher, it must be related to to something in the airflow path... im not a mechanic so i won't talk outa my ass... hopefully some of the more experienced members have an idea something similar happened with me on the interstate on friday... i heard a real wierd repetitive sound... so i pulled over to look but everything seemed fine... got back on the road and the noise was gone
Wastegate opening and closing? That would be my guess. I could hear my wastegate really well in my car. Right around that same range too.
took the car for a 'spirited' drive today and the noise is gone, now I just need to find some free afternoon so I can reset the ECU.
disconnect the battery... hold down the brake for 10 sec or so... reconnect the battery... takes a few minutes
but after that I need some open roads so I can reprogram it. total cost was $142.80 for just the Uppipe, Uppipe + downpipe would have been $200.00.
there's some post on NASIOC from Shiv at Vishnu Tuning about the best way to get your ECU to up the hp after a reset. I think there's another good tutorial on Scoobymods.com What I always do is just reset the ECU and then drive how you normally would and then the ECU will program itself accordingly.