Any consensus on the number of Wastegate turns/cracking psi for K16's? (Mike/Jacob/Verruckt...?)

VR_Life · 11-26-2005, 11:15 PM

By psi for the lever to start moving ? Or by psi for the lever to complete its arc ?

I seem to recall it was ~3 complete turns inwards ~10psi cracking psi.

While I have the sub-frame off I want to do them while it's convenient. I found the lever on mine starts moving ~7psi and full travel by ~11 psi

[badmoon] · 11-27-2005, 05:49 AM

I'd make sure you know the consequences before doing so because it is a major PITA especially if you still have the DP heat shields on. Using overly adjusted WG's with standard software could cause positive deviation codes. But to answer your question, I believe mine were approximately 10mm from where they had been set to crack at 10psi. I would NOT go by number of turns or distance though, use a mityvac, tap into the wg line, do one side at a time. Pump and note when one starts to crack and check where the gauge is at, repeat for the other side.

VR_Life · 11-27-2005, 06:03 AM

I used compressed air and a pressure gauge accurate to 1 psi.

I set both so the lever just begins to rotate the same angle on both sides ~8psi. And fully open ~12psi

P.S. Turning wg screw three turns is a common UrS4 mod.

[badmoon] · 11-27-2005, 07:19 AM

I turned them back down to the settings when Jacob sent them to me, which happened to be 7.5psi. In theory I can see that turning the nut 3 turns would make sense, but that's assuming both wg's are set identically, either way I personally think that's a pretty inaccurate way of setting them and I would definitely want them to be as close to each other as possible. But it sounds like you're taking a methodical approach. Just make sure to log with ECUx after adjusting them...with mine adjusted so aggressively (ie 10psi) I had a positive deviation for the entire RPM range with a .5bar spike initially. At 8psi you're probably fine...just keep the posi dev in mind if things feel weird.

BLK01S4::HB B!SH · 11-27-2005, 11:23 AM

Click

BLK01S4::HB B!SH · 11-27-2005, 11:24 AM

BLK01S4::HB B!SH · 11-27-2005, 11:25 AM

on your boost gauge.

VR_Life · 11-27-2005, 10:37 PM

BLK01S4::HB B!SH · 11-28-2005, 12:49 PM

BLK01S4::HB B!SH · 11-28-2005, 12:50 PM

Clicky again

11-26-2005, 11:15 PM	#1
VR_Life Guest Account #: 58573 Join Date: Jul 2003 Posts: 9,721	Any consensus on the number of Wastegate turns/cracking psi for K16's? (Mike/Jacob/Verruckt...?) By psi for the lever to start moving ? Or by psi for the lever to complete its arc ? I seem to recall it was ~3 complete turns inwards ~10psi cracking psi. While I have the sub-frame off I want to do them while it's convenient. I found the lever on mine starts moving ~7psi and full travel by ~11 psi

11-27-2005, 05:49 AM	#2
[badmoon] Senior Member Account #: 43125 Join Date: Sep 2002 Posts: 6,021	Do you know why you're adjusting your wastegates? I'd make sure you know the consequences before doing so because it is a major PITA especially if you still have the DP heat shields on. Using overly adjusted WG's with standard software could cause positive deviation codes. But to answer your question, I believe mine were approximately 10mm from where they had been set to crack at 10psi. I would NOT go by number of turns or distance though, use a mityvac, tap into the wg line, do one side at a time. Pump and note when one starts to crack and check where the gauge is at, repeat for the other side.

11-27-2005, 06:03 AM	#3
VR_Life Guest Account #: 58573 Join Date: Jul 2003 Posts: 9,721	So yours are set to 10psi ? Just when the lever moves ? I used compressed air and a pressure gauge accurate to 1 psi. I set both so the lever just begins to rotate the same angle on both sides ~8psi. And fully open ~12psi P.S. Turning wg screw three turns is a common UrS4 mod.

11-27-2005, 07:19 AM	#4
[badmoon] Senior Member Account #: 43125 Join Date: Sep 2002 Posts: 6,021	Mine used to be set that high... I turned them back down to the settings when Jacob sent them to me, which happened to be 7.5psi. In theory I can see that turning the nut 3 turns would make sense, but that's assuming both wg's are set identically, either way I personally think that's a pretty inaccurate way of setting them and I would definitely want them to be as close to each other as possible. But it sounds like you're taking a methodical approach. Just make sure to log with ECUx after adjusting them...with mine adjusted so aggressively (ie 10psi) I had a positive deviation for the entire RPM range with a .5bar spike initially. At 8psi you're probably fine...just keep the posi dev in mind if things feel weird.

11-27-2005, 11:23 AM	#5
BLK01S4::HB B!SH AudiWorld Super User Account #: 52597 Join Date: Mar 2003 Posts: 5,924	Here Click __________________ Stage III Tip : ??? FATS (Race Gas) 3.43 Average Pump gas --------------- Fastest Tiptronic! ET: 12.259@118.25mph :) "Turbos are usually the cheapest/easiest way to add power - Posted by: Corrado79 on 2008-05-21 13:22:49 "Amazing that he could maintain a wedgie and talk out of his ass at the same time. That's one skill he CAN lay claim to. - Skydive@W?? 2007-12-18" --- "good I just added you to my " bitch " VIP list ." -Professional customer service - SIMPPLY@WMS 2007-12-17 --- "i tried the propane file on butane and it blew my ing grill up." - mjtaylor::pipedream 2007-08-23 14:21:46 --- "It takes a problem which we don't have and doesn't even solve it" - Mirror\|rorriM on 2006-09-26 --- "but yeah you want open loop when you go wot ;-)" - PiggieSmalls on 2006-11-10 --- $$$$$$$$$$$$$$$$$ = !@$#!#!!@&%! ----

11-27-2005, 11:24 AM	#6
BLK01S4::HB B!SH AudiWorld Super User Account #: 52597 Join Date: Mar 2003 Posts: 5,924	mine didnt operate properly at 10psi it was to much. __________________ Stage III Tip : ??? FATS (Race Gas) 3.43 Average Pump gas --------------- Fastest Tiptronic! ET: 12.259@118.25mph :) "Turbos are usually the cheapest/easiest way to add power - Posted by: Corrado79 on 2008-05-21 13:22:49 "Amazing that he could maintain a wedgie and talk out of his ass at the same time. That's one skill he CAN lay claim to. - Skydive@W?? 2007-12-18" --- "good I just added you to my " bitch " VIP list ." -Professional customer service - SIMPPLY@WMS 2007-12-17 --- "i tried the propane file on butane and it blew my ing grill up." - mjtaylor::pipedream 2007-08-23 14:21:46 --- "It takes a problem which we don't have and doesn't even solve it" - Mirror\|rorriM on 2006-09-26 --- "but yeah you want open loop when you go wot ;-)" - PiggieSmalls on 2006-11-10 --- $$$$$$$$$$$$$$$$$ = !@$#!#!!@&%! ----

11-27-2005, 11:25 AM	#7
BLK01S4::HB B!SH AudiWorld Super User Account #: 52597 Join Date: Mar 2003 Posts: 5,924	also test the car with no boost setting to see when the WG's open on your boost gauge. __________________ Stage III Tip : ??? FATS (Race Gas) 3.43 Average Pump gas --------------- Fastest Tiptronic! ET: 12.259@118.25mph :) "Turbos are usually the cheapest/easiest way to add power - Posted by: Corrado79 on 2008-05-21 13:22:49 "Amazing that he could maintain a wedgie and talk out of his ass at the same time. That's one skill he CAN lay claim to. - Skydive@W?? 2007-12-18" --- "good I just added you to my " bitch " VIP list ." -Professional customer service - SIMPPLY@WMS 2007-12-17 --- "i tried the propane file on butane and it blew my ing grill up." - mjtaylor::pipedream 2007-08-23 14:21:46 --- "It takes a problem which we don't have and doesn't even solve it" - Mirror\|rorriM on 2006-09-26 --- "but yeah you want open loop when you go wot ;-)" - PiggieSmalls on 2006-11-10 --- $$$$$$$$$$$$$$$$$ = !@$#!#!!@&%! ----

11-27-2005, 10:37 PM	#8
VR_Life Guest Account #: 58573 Join Date: Jul 2003 Posts: 9,721	I dunno what that has to do with anything Mike...

11-28-2005, 12:49 PM	#9
BLK01S4::HB B!SH AudiWorld Super User Account #: 52597 Join Date: Mar 2003 Posts: 5,924	You wanted to know how to and how far to tweak it right? __________________ Stage III Tip : ??? FATS (Race Gas) 3.43 Average Pump gas --------------- Fastest Tiptronic! ET: 12.259@118.25mph :) "Turbos are usually the cheapest/easiest way to add power - Posted by: Corrado79 on 2008-05-21 13:22:49 "Amazing that he could maintain a wedgie and talk out of his ass at the same time. That's one skill he CAN lay claim to. - Skydive@W?? 2007-12-18" --- "good I just added you to my " bitch " VIP list ." -Professional customer service - SIMPPLY@WMS 2007-12-17 --- "i tried the propane file on butane and it blew my ing grill up." - mjtaylor::pipedream 2007-08-23 14:21:46 --- "It takes a problem which we don't have and doesn't even solve it" - Mirror\|rorriM on 2006-09-26 --- "but yeah you want open loop when you go wot ;-)" - PiggieSmalls on 2006-11-10 --- $$$$$$$$$$$$$$$$$ = !@$#!#!!@&%! ----

11-28-2005, 12:50 PM	#10
BLK01S4::HB B!SH AudiWorld Super User Account #: 52597 Join Date: Mar 2003 Posts: 5,924	AH ! I posted teh wrong link I'm sorry Clicky again __________________ Stage III Tip : ??? FATS (Race Gas) 3.43 Average Pump gas --------------- Fastest Tiptronic! ET: 12.259@118.25mph :) "Turbos are usually the cheapest/easiest way to add power - Posted by: Corrado79 on 2008-05-21 13:22:49 "Amazing that he could maintain a wedgie and talk out of his ass at the same time. That's one skill he CAN lay claim to. - Skydive@W?? 2007-12-18" --- "good I just added you to my " bitch " VIP list ." -Professional customer service - SIMPPLY@WMS 2007-12-17 --- "i tried the propane file on butane and it blew my ing grill up." - mjtaylor::pipedream 2007-08-23 14:21:46 --- "It takes a problem which we don't have and doesn't even solve it" - Mirror\|rorriM on 2006-09-26 --- "but yeah you want open loop when you go wot ;-)" - PiggieSmalls on 2006-11-10 --- $$$$$$$$$$$$$$$$$ = !@$#!#!!@&%! ----

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