Club G40 Forum

Technical => Engine and Transmission => Topic started by: Dingle_Polo on August 08, 2009, 05:58:14 PM

Title: Boost?
Post by: Dingle_Polo on August 08, 2009, 05:58:14 PM
where is it going?

well my friend g40 is not geting any boost above 0.3 bar, the car runs fine but it hunting a little.
check for leaks on boost pipes and vacum hoses also if the return valve closes on full throttle which i does. ive alos checked the sive like thing in the bottom of the intercooler which is gd too.

wonderd if any1 had simular problems and could direct me in the right direction.

engine modification:
4 branch
ported throttle bodie and d/w
65mm pulley
gt inlet
stage 4 porting

any help would b great thanks
Title: Re: Boost?
Post by: hardchargin40 on August 08, 2009, 06:13:28 PM
isv hose come off?
Title: Re: Boost?
Post by: vwmk3jon on August 08, 2009, 09:17:08 PM
Am i right in thinking dewedging the throttlebody can have an effect on idle?
Title: Re: Boost?
Post by: hayesey on August 10, 2009, 10:14:14 AM
dewedging the throttle body shouldn't affect idle unless the holes left over haven't been sealed properly.

Are his charger belts slipping badly?  With that spec you should be seeing almost a bar of boost. 

What did you do to check for boost leaks? 
Title: Re: Boost?
Post by: Dingle_Polo on August 10, 2009, 07:29:01 PM
well i checked all boost hoses and vacum hoses, used a vacum tester on the small vacum hoses made sure the throttle return valve shuts fully. bit did fined the a/f meter o ring was pissed so remove and replaced but still only boost to 0.5 bar which still aint as much a should be. any suggestions wud be great.

cheers zack