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-   -   Boost Pressures (https://www.scoobynet.com/scoobynet-general-1/1038-boost-pressures.html)

Spikey 24 January 2000 01:58 PM

Can somebody please help me out on this one.
I have just installed the official Subaru column mounted boost gauge onto my UK MY00.
Under hard acceleration my peak boost reads exactly 1.0. Should it be higher than this?? I'm sure that I read somewhere it should be around the 1.2 mark...or did I dream it!?!

Lee 24 January 2000 03:31 PM

1 bar = 14.5 (or 14.7 in some books) PSI which is dead right for a normal 99/00 Impreza.

1.2 bar is achievable with a bleed valve and is about the limit before the ECU starts cutting the fuel to make you behave yourself.

Spikey 24 January 2000 03:45 PM

Thanks Lee, that has cleared it up for me.
What is a bleed valve???

sunilp 24 January 2000 06:49 PM

I thought a std UK MY99 holds around 13psi?

Bleed valve time for Spikey me thinks!

Ian Cook 24 January 2000 07:20 PM

Sunil, my 99 car on the RR produced 16 PSI peak and settled at 15 PSI, 13 is a bit low, 14/15 is correct.

sunilp 24 January 2000 08:10 PM

Oh well, i am wrong again... http://bbs.scoobynet.co.uk/frown.gif.....LOL


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