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boost gauge 

 

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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 6:58 pm 
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Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

hmmm...
can you here the blow off valve at all?? maybe the blow off valve is not closing? or you have a huge boost leak somewhere before the manifold
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 7:00 pm 
Stock as a Rock
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Age: 27

Posts: 125

Joined: 2nd Apr 2010

Ride: EF xr8

Location: Albany
WA, Australia

yer it goes off wen it should. ill have a look for some leaks but other than that im not sure
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 7:05 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

its strange....
does the car feel slugish?

try running the boost gauge fron the blow off valve line..
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 7:34 pm 
Stock as a Rock
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Age: 27

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Ride: EF xr8

Location: Albany
WA, Australia

i think iv figured it. i think it has a leak on the pipe from the bov to the intake pipe coz i fukd round with it and i just got bout 4 psi
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 9:54 pm 
Stock as a Rock
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Age: 27

Posts: 125

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Ride: EF xr8

Location: Albany
WA, Australia

yayay fixed, was few leaks, such a mission to get it all on properly tho. but now making 4psi 4000rpm threw all gears. same as the dyno sheet
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 9:57 pm 
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Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

thats good news...
with boost all hoses need to be tight, no vacuum leaks ect... where there could be a vac leak means there is also a boost leak...
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 9:58 pm 
Stock as a Rock
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Age: 27

Posts: 125

Joined: 2nd Apr 2010

Ride: EF xr8

Location: Albany
WA, Australia

yer learnt the hard way lol will be getting my mechanic to check it all ova next week
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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 10:00 pm 
Getting Side Ways
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Age: 25

Posts: 4599

Joined: 30th Aug 2010

Ride: BF XR6,

Location: NEWCASTLE
NSW, Australia

how much power are you making on that much boost?

 

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xr8 snorkel,typhoon lower snorkel,territory intake pipe,20% underdrive kit,pacemaker extractors,high flow cat,xforce exhaust,t56 conversion hd turbo clutch/ flywheel,m86 3.45 lsd,custom tune187.1rwkw as an auto

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 Post subject: Re: boost gauge
Posted: Tue Jun 14, 2011 10:02 pm 
Stock as a Rock
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Age: 27

Posts: 125

Joined: 2nd Apr 2010

Ride: EF xr8

Location: Albany
WA, Australia

at 4psi at 4000rpm bout 240hp, but it made 285hp at 4800rpm with bout 6.5psi. on the dyno we were having problems with fuel, it starts to lean out not long after 4000rpm so i wont take it past that till the fuel reg and fuel pump are in. the guy put a 4800rpm lifter on it to.
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