Not really s2 related, a friend just installed this turbo garette t3/t4 60trim stage 3, on a KR vw engine. It uses a 6mm oil restrictor. Turbo seem to be in very good shape, no shaft play, leaks etc. Problem that from what he says on idle turbo only start spining around 2000 rpm, and very slow. From what i saw ussualy journal bearing does not need oil restrictor, and the 1.8bar oil pressure in ilde, is far to low to cause any problem. Maybe the turbo to big ? or some other problems ? what should be checked. ?
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propper garrett shouldnt need a restrictor
turbo is probebly fake and should then need a restrictor, may smoke on idle when hot also
what is the build/serial number and or pic of the turbo please.1993 URS4 Avant Emerald Green 350+bhp
1991 Ford Sierra Sapphire 4x4 in Magenta
BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRP
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I think the turbo's journal bearing if distroyed.Audi S4 2.2T 5 spd 1992 for parts
AUDI A4 1.9TDI daily use
Audi 80 Quattro 2.0 16V (ACE) aka CompetitionComment
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466159-5004Comment
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i thought it was only ball bearing turbos that needed the restrictor?? when you say idle are you looking for the turbo spinning whilst its sitting still reving? or watching boost gauge whilst stationary? if so try it down the road with some load on it.. even then i wouldnt have thought it would be on full boost untill 3k anyway, sorry if i have the wrong end of the stickComment
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i have used garretts for over 20 years
T3,T34,T35,T38 and many T4`s
not one needed restrictors!1993 URS4 Avant Emerald Green 350+bhp
1991 Ford Sierra Sapphire 4x4 in Magenta
BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRPComment
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pretty sure its just the newer ball bearing turbos that need themComment
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bb needs them non bb ok.
the kr on stock cams generates very little low down. a 60 trim t04e will not boost til 3.5k or so id have thought depending on hotside.
does it go well after.
2 exhaust cams with correct timing mods is a good way forward for kr.Comment
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