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can any one help, fitted turbosmart manual boost controller to car adjusted boost to 10psi,runs fine then parked the car, did use it for a few days drove it and boost showed to be back at 7psi, on a new auto meter boost gauge, so popped bonnet turned up 2 clicks drove car put the foot down and felt like car was running well over 10psi but was still only reading about 7-8psi whats going on, the car has a r34 turbo? i think how much boost can i run safely its a stock rb20det with trust 3" ex, big trust intercooler, re mapped ecu new walbro 255 pump. thanks peter also have a high idle proplem and also car plays up once a while like its staving of fuel , i put it in nutral rev it then its fine? can any one help or tell me were to go in eastern sub of melbourne.

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if the ecu is tuned for it you could run 18 psi

rb20det standard runs 10 psi . front mount plus exhaust will usually get it bout 13 . so run at least that .

was the ecu re mapped with a 34 turbo or the 20det one ?

and yeah get a real boost gauge . is it plumed up properly ?

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if the ecu is tuned for it you could run 18 psi

rb20det standard runs 10 psi . front mount plus exhaust will usually get it bout 13 . so run at least that .

was the ecu re mapped with a 34 turbo or the 20det one ?

and yeah get a real boost gauge . is it plumed up properly ?

its a brand new auto meter pro comp liquid filled boost gauge$180+ ( had them on ever car i have had, very good top quality), and the only vaccum i could find was the factory boost gauge line that runs to the small black box on the drivers side of the fire wall?

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https://www.sau.com.au/forums/topic/374123-r32-gtst-boost/#findComment-5967840
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just re read your post you said you connected your boost gauge to the hose for the factory gauge . did you join to that hose or run your boost line to the plenum? . that factory hose is well known for splitting and leaking at the plenum end check that

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