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brucey106 · 05-08-2008, 18:43

last week i had new bcs's(boost solinides) and a new vxr actuator fitted. car was set up on the road not rollers.(85 quid an hour for 1-2bhp was not an option!)

but for a while before i have been hearing a hissing noise? could not find it and was waiting for it to get worse. car still ran well. anyway had vxr actuator fitted and set up last week. today when i got home i lifted bonnet and i found the air leak. lol. there is a small straw type boost pipe going to the back of engine to a sensor like a bcs (vacum pipe?) and it was off? i dont know what pipe it is??? it seems to come from back of engine, up side by side with boost gauge pipe work and i think it goes under air filter(maybe to ecu?) anyway seeing as i have cured this leak, what is this pipe and would it effect boost? would the actuator set up now be wrong? (would there be too much boost or not enough? on the gauge its idling at -15 if this helps (sure it used to be -20! which courtenays said is good)

please please if you can let me know i would be very greatfull

thanks

trickyb · 05-08-2008, 19:25

Hi mate, thats the pipe that comes from the rear boost controll solenoid to the standard dump valve. Has your car got an aftermarket dump valve fitted ???? with the stanadard d/v pipe disconnected (without a spacer fitted inside the standard d/v) the car would have been leaking boost.

brucey106 · 05-08-2008, 19:37

i dont have a dump valve mate. been told no good on zlets.
so would this have affected actuator set up?

brucey106 · 05-08-2008, 19:38

i am worried that now the leak is fixed i might have too much boost of something? suprised courtenays never noticed this?

ZAF_GSI · 05-08-2008, 19:38

Check under the engine at the back vacume could of come off perhaps?

brucey106 · 05-08-2008, 19:49

Quote:

Originally Posted by ZAF_GSI

Check under the engine at the back vacume could of come off perhaps?

thats the one i found mate

just wondered if it would effect actuator setting. boost level? been off a while and had vxr act. fitted and set up last week.

thanks so far

ZAF_GSI · 05-08-2008, 20:01

I would of thought boost levels.

brucey106 · 05-08-2008, 20:02

would it now be boosting too much?

brucey106 · 05-08-2008, 21:13

Quote:

Originally Posted by ZAF_GSI

I would of thought boost levels.

thanks for your input mate

dazerc · 05-08-2008, 21:57

what is it boosting to when you floor it ?

05-08-2008, 18:43	#1
brucey106 AS Fanatic Join Date: Apr 2007 Location: North Norfolk Drives: 2003 clio 172 cup Posts: 996	please help zlet peeps in the know :D last week i had new bcs's(boost solinides) and a new vxr actuator fitted. car was set up on the road not rollers.(85 quid an hour for 1-2bhp was not an option!) but for a while before i have been hearing a hissing noise? could not find it and was waiting for it to get worse. car still ran well. anyway had vxr actuator fitted and set up last week. today when i got home i lifted bonnet and i found the air leak. lol. there is a small straw type boost pipe going to the back of engine to a sensor like a bcs (vacum pipe?) and it was off? i dont know what pipe it is??? it seems to come from back of engine, up side by side with boost gauge pipe work and i think it goes under air filter(maybe to ecu?) anyway seeing as i have cured this leak, what is this pipe and would it effect boost? would the actuator set up now be wrong? (would there be too much boost or not enough? on the gauge its idling at -15 if this helps (sure it used to be -20! which courtenays said is good) please please if you can let me know i would be very greatfull thanks __________________ 2003 clio 172 cup sorry guys!!

05-08-2008, 19:25	#2
trickyb AS Fanatic Join Date: Aug 2005 Location: Langdon Hills Essex Posts: 951	Hi mate, thats the pipe that comes from the rear boost controll solenoid to the standard dump valve. Has your car got an aftermarket dump valve fitted ???? with the stanadard d/v pipe disconnected (without a spacer fitted inside the standard d/v) the car would have been leaking boost. __________________ 553 bhp @ 22 psi on gt35 z20let

05-08-2008, 19:37	#3
brucey106 AS Fanatic Join Date: Apr 2007 Location: North Norfolk Drives: 2003 clio 172 cup Posts: 996	i dont have a dump valve mate. been told no good on zlets. so would this have affected actuator set up? __________________ 2003 clio 172 cup sorry guys!!

05-08-2008, 19:38	#4
brucey106 AS Fanatic Join Date: Apr 2007 Location: North Norfolk Drives: 2003 clio 172 cup Posts: 996	i am worried that now the leak is fixed i might have too much boost of something? suprised courtenays never noticed this? __________________ 2003 clio 172 cup sorry guys!!

05-08-2008, 19:38	#5
ZAF_GSI AS Fanatic Join Date: Nov 2007 Location: eltham Posts: 2,501	Check under the engine at the back vacume could of come off perhaps? __________________ PHASE 3 ON A SWITCH WIV A GARRETT

05-08-2008, 20:01	#7
ZAF_GSI AS Fanatic Join Date: Nov 2007 Location: eltham Posts: 2,501	I would of thought boost levels. __________________ PHASE 3 ON A SWITCH WIV A GARRETT

05-08-2008, 20:02	#8
brucey106 AS Fanatic Join Date: Apr 2007 Location: North Norfolk Drives: 2003 clio 172 cup Posts: 996	would it now be boosting too much? __________________ 2003 clio 172 cup sorry guys!!

05-08-2008, 21:57	#10
dazerc AS Fanatic Join Date: Jan 2004 Location: Wiltshire Posts: 1,484	what is it boosting to when you floor it ? __________________ SMIC, miltek catback, precat, Thorney remap 242.7 bhp 281lb/ft torque

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