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Old 07 Dec 2008, 02:09 PM   #1 (permalink)
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boost presure

i have a 94 wrx import wagon and im only getting 7.5 -8 psi max boost, sure it should be more like 14, is this right and how can i adjust it, any help would be great-- chris
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Old 07 Dec 2008, 06:40 PM   #2 (permalink)
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Re: boost presure

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Originally Posted by chriswrximport View Post
i have a 94 wrx import wagon and im only getting 7.5 -8 psi max boost, sure it should be more like 14, is this right and how can i adjust it, any help would be great-- chris
Do you run it on the 95unleaded cause that will make the power drop so always run it on the super unleaded if its not that id clean the boost solenoid and if not that could try the maf sensor...........................
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Old 08 Dec 2008, 10:16 AM   #3 (permalink)
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Re: boost presure

check for boost leaks on pipework and dumpvalve.
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Old 08 Dec 2008, 07:17 PM   #4 (permalink)
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Re: boost presure

its being run on super unleaded, checked all pipe work and dump valve and cant find anything wrong. what should i use to clean the sensors. is the preasure controlled by the ecu or can it be adjusted manualy
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Old 08 Dec 2008, 08:11 PM   #5 (permalink)
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Re: boost presure

you not got a boost controller? if so turn it up a bit, but not too much
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Old 08 Dec 2008, 08:15 PM   #6 (permalink)
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Re: boost presure

no boost controller, all standard except for cat back exhaust and dump valve
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Old 08 Dec 2008, 10:11 PM   #7 (permalink)
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Re: boost presure

think you are going to need a boost controller, can turn boost up and down on them. you can get them on ebay for 15 quid. you got a boost gauge?
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Old 09 Dec 2008, 08:48 PM   #8 (permalink)
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Re: boost presure

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Originally Posted by SHEP6413 View Post
think you are going to need a boost controller, can turn boost up and down on them. you can get them on ebay for 15 quid. you got a boost gauge?
yeah ive got a boost gauge, how hard are the boost controllers to fit, what is the correct boost pressure, read somewhere it should be 13 - 14 psi, is this right cause i dont want to overboost.
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Old 09 Dec 2008, 08:50 PM   #9 (permalink)
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Re: boost presure

Lol yer but then youre gonna have a big problem-for it to run low boost in the first place theres something wrong-putting a boost controller on wont cure the problem yer ya can vary the boost but possibly at the expense of an engine-up to you it`s not my car


Best advice i`d ever give anyone with a scooby is find a good specialist who ya trust/have heard good reports about from others then if ya draw a blank from ppl on forums take it there-it`l save ya money in the long run.
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Old 09 Dec 2008, 08:56 PM   #10 (permalink)
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Re: boost presure

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Originally Posted by uk dave View Post
Lol yer but then youre gonna have a big problem-for it to run low boost in the first place theres something wrong-putting a boost controller on wont cure the problem yer ya can vary the boost but possibly at the expense of an engine-up to you it`s not my car


Best advice i`d ever give anyone with a scooby is find a good specialist who ya trust/have heard good reports about from others then if ya draw a blank from ppl on forums take it there-it`l save ya money in the long run.
think that is probbably the best thing to do cause the last thing i want is to wreck the engine, anyone know any good specialists in or around birmingham area?
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Old 09 Dec 2008, 09:05 PM   #11 (permalink)
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Re: boost presure

i Dont however try asking on here Subaru Central :: Index mainly west midlands based i believe so they`ll know somewhere
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Old 09 Dec 2008, 09:09 PM   #12 (permalink)
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Re: boost presure

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i Dont however try asking on here Subaru Central :: Index mainly west midlands based i believe so they`ll know somewhere
will do, cheers to everyone for the replys
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Old 09 Dec 2008, 10:13 PM   #13 (permalink)
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Re: boost presure

scoobyteknix in fleetwood near blackpool are excellent, if you fancy the drive up. worth it though

Scoobyteknixuk Tuning Products Performace Parts Ecu Remap Pre-Used Parts Breakers Servicing
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Old 10 Dec 2008, 08:15 PM   #14 (permalink)
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Re: boost presure

Graham goode in Leicester,about 30 miles from brum and have been tuning cars from the mid 80's
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