BRASS Restrictor Part Numbers
Does anyone have a list of part numbers for the Brass Restrictors used in the boost control solenoid pipes for both Pre96 and Post96
Pre96 in bottom hose from Boost Control Solenoid
Post96 in hose near Actuator/T-piece
I would ideally like a list of all the available sizes and part numbers i.e 1.0mm, 1.5mm etc...etc...
Cheers.......
I've managed to find 2 numbers :
22326AA090 (Standard Pre96)
22326KA120 (Standard Post96)
Pre96 in bottom hose from Boost Control Solenoid
Post96 in hose near Actuator/T-piece
I would ideally like a list of all the available sizes and part numbers i.e 1.0mm, 1.5mm etc...etc...
Cheers.......
I've managed to find 2 numbers :
22326AA090 (Standard Pre96)
22326KA120 (Standard Post96)
Post 96 - from invoices from when I dabbled to get boost to peak at 21-22psi.
part number 22326AA260 is for a 0.8mm (£2.28 +VAT back in 2001 !!
22326KA120 is for a std (on a UK98) 1.2mm - £2.02 + VAT (2001).
I found 1.0mm gave the desired peak with the ppp ecu and decatted exhaust and KN57 filter. All the experts of the day said I would melt pistons and the engine would blow - how wrong they were !!
Stan
Editted to say buy the small one and drill it out in increments until desired result !!
part number 22326AA260 is for a 0.8mm (£2.28 +VAT back in 2001 !!
22326KA120 is for a std (on a UK98) 1.2mm - £2.02 + VAT (2001).
I found 1.0mm gave the desired peak with the ppp ecu and decatted exhaust and KN57 filter. All the experts of the day said I would melt pistons and the engine would blow - how wrong they were !!

Stan
Editted to say buy the small one and drill it out in increments until desired result !!
Last edited by StanS; Jul 23, 2004 at 07:48 PM.
All models up to and including MY96 had a 2.0mm restrictor in the solenoid vent pipe, after that they were either 1.2mm or 0.9 mm depending on model apart from STi4 which used a three port solenoid with a longer 0.9mm in the turbo pipe.
If you say what you are after/trying to do I can trwl through the parts books I have and find you some info but I am not going to try and find all of them for obvious reasons.
bob
If you say what you are after/trying to do I can trwl through the parts books I have and find you some info but I am not going to try and find all of them for obvious reasons.
bob
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Suffering from overboost ive fitted a chip from Scott T and i want to stop it. Ive ordered 5 standard restrictors from Dave Henry cars and will drill them out till i get the result. Scott do you have any idea on the sory of diameter required?
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Bob
the restrictor is a seperate purchase
and so is the boost pipework, you have to order everything seperatly, including the clips
Subaru Parts describes the restrictor as 'orifice'
I know, I had the same problem when I needed to buy the boost pipework
Steve
the restrictor is a seperate purchase
and so is the boost pipework, you have to order everything seperatly, including the clipsSubaru Parts describes the restrictor as 'orifice'
I know, I had the same problem when I needed to buy the boost pipework
Steve
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