bowie Posted August 28, 2007 Report Share Posted August 28, 2007 Hi all, can you here the recirculating valve working on your turbos ? The reason I ask is that on the weekend I took a friend to buy an 05 GTi and when snapping the throttle closed you could hear the valve dumping. On my 06 car, I can't ever recall hearing it do this. Friend who's a VW tech says that mine is ok as it should be silent. Anyone know ? Chris. Link to comment Share on other sites More sharing options...
RedRobin Posted August 28, 2007 Report Share Posted August 28, 2007 The recirculating valve doesn't dump air on the 2.0T FSI but recirculates it. Forge make an aftermarket spacer which does nothing more than allow a dump of air and hence the whooshy sound associated with older technology turbos. The 05 GTI you saw may have had an aftermarket spacer fitted. You only begin to hear the turbo when you fit an aftermarket air intake or larger turbo hoses but it's still not that dumping sound. Link to comment Share on other sites More sharing options...
winrya Posted August 29, 2007 Report Share Posted August 29, 2007 Its quite normal, its the wastegate releasing the pressure. It makes a lovels whoosh sound on mine when you change gear or ease off the throttle. I can only hear it when the window is down but ive heard it on other gti's and an a3 with the same engine Link to comment Share on other sites More sharing options...
Jack_is_Back Posted August 29, 2007 Report Share Posted August 29, 2007 Funny how some folk say they don't get any noise on a standard setup - I get a very pronounced "tshhhh" noise when backing off the throttle in my 06 GTI. Link to comment Share on other sites More sharing options...
winrya Posted August 29, 2007 Report Share Posted August 29, 2007 [ QUOTE ] Funny how some folk say they don't get any noise on a standard setup - I get a very pronounced "tshhhh" noise when backing off the throttle in my 06 GTI. [/ QUOTE ] Maybe reds 4 exhausts cover up the sound Link to comment Share on other sites More sharing options...
DHA Posted August 29, 2007 Report Share Posted August 29, 2007 On hot days with the window open I can hear the turbo spooling up. But yes it is odd how some can and some can't hear it. Link to comment Share on other sites More sharing options...
bowie Posted August 29, 2007 Author Report Share Posted August 29, 2007 When I say 'dump' I mean recirculating it. I was assured the 05 car was standard. I always heard my previous S3s recircing but not on my GTi. I would say my valve maybe shot but with the 1.8t if it was shot you'd hear the turbo stalling (fluttering) but I'm not getting that this time. I'm going to drive another tonight to see how that sounds. Don't get me wrong here though. I'm not after the atmospheric dump sound, but trying to ascertain whether my valve is shot. Chris. Link to comment Share on other sites More sharing options...
RedRobin Posted August 29, 2007 Report Share Posted August 29, 2007 ....Chris, if your valve was shot you'd expect to find a noticeable difference in performance. As Ryan suggests, I think my xzorsts cover up a certain amount of sound. I don't often travel with my windows down though. Link to comment Share on other sites More sharing options...
bowie Posted August 29, 2007 Author Report Share Posted August 29, 2007 I have thought its lost its edge lately. Hard to say if I'm just used to it or has it lost something. Have to vagcom it. Chris. Link to comment Share on other sites More sharing options...
RedRobin Posted August 29, 2007 Report Share Posted August 29, 2007 I don't know if anyone here has experienced a DV failure to be able to tell you more. However, I know one guy on another forum who has experienced several stock DV failures! Link to comment Share on other sites More sharing options...
bowie Posted August 29, 2007 Author Report Share Posted August 29, 2007 who's that then ? And where ? Chris. Link to comment Share on other sites More sharing options...
RedRobin Posted August 29, 2007 Report Share Posted August 29, 2007 ....cmdrfire on www.golfmkv.com He has a nice Laser Blue Mk5 GTI and is based in the UK. I met him at Castle Combe. Link to comment Share on other sites More sharing options...
Medway Posted August 30, 2007 Report Share Posted August 30, 2007 ED30 owners: Just out of interest, is turbo noise louder on your car than that of a regular GTI? Link to comment Share on other sites More sharing options...
bowie Posted August 30, 2007 Author Report Share Posted August 30, 2007 Red, just read the thread on the Forge DV on mkv.com Heated ! Chris. Link to comment Share on other sites More sharing options...
RedRobin Posted August 30, 2007 Report Share Posted August 30, 2007 ....The heat in that thread has got nothing compared to the Vortex thread. Someone summed it up when they posted that the same boost spike that people have been seeing with the forge DV can be seen on the stock DV also. And that the Forge DV is more robust. Reports are that boost is held longer - I don't have any graphs or scientific evidence to back that up (and I'm not interested in getting any!) but I do know that power comes in just as strongly from 80 up to 120 mph - Whether that is down to the remap, turbo discharge/charge pipes, DV, or combination I really don't know and don't really care. All I know is that it's a joy to drive and extremely responsive. Link to comment Share on other sites More sharing options...
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