mikeyb10supra Posted April 29, 2006 Share Posted April 29, 2006 Does the external wastegate on auto's sound from the outside while driving, or only when backing off the throttle?? Anyone have any vids of an Auto single turbo supra apart from drag supras? Mikey Quote Link to comment Share on other sites More sharing options...
Seb Posted April 29, 2006 Share Posted April 29, 2006 The external wastegate works the same way on auto and manual cars - it's atmospheric dump valves that only really sound when lifting off in an auto car, though some auto owners say they can hear the dump valve going between gears. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 29, 2006 Share Posted April 29, 2006 Does the external wastegate on auto's sound from the outside while driving, or only when backing off the throttle?? Mikey what do you mean mate, i have an external wastegate vented to atmosphere on a auto, when letting off from high revs it sounds awesome in combination with the dump valve and at high revs/speed it howls :D Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted April 29, 2006 Author Share Posted April 29, 2006 A mates single turbo manual car used to chatter on gear changes.....he had a wastegate venting to atmosphere, just wondering if it would be a similar scenario with the auto as your not lifting of the throttle in an auto?? Or am I totally confused here? Mike Quote Link to comment Share on other sites More sharing options...
LeeT Posted April 29, 2006 Share Posted April 29, 2006 A mates single turbo manual car used to chatter on gear changes.....he had a wastegate venting to atmosphere, just wondering if it would be a similar scenario with the auto as your not lifting of the throttle in an auto?? Or am I totally confused here? Mike i could here my wastegate between gears on the auto but was much louder on lift off. its much better now im manual:D Quote Link to comment Share on other sites More sharing options...
darren j adams Posted April 29, 2006 Share Posted April 29, 2006 leet did you fix your prob?? D. Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 29, 2006 Share Posted April 29, 2006 A mates single turbo manual car used to chatter on gear changes.....he had a wastegate venting to atmosphere, just wondering if it would be a similar scenario with the auto as your not lifting of the throttle in an auto?? Or am I totally confused here? Mike i never hear anything on full throttle gear changes i think thats the way the ecu controls the shifts, all the noise (chatter) is is on lift off Quote Link to comment Share on other sites More sharing options...
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