B5234T Wastegate Setup

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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BrickyardCustoms
Posts: 13
Joined: Wed Jul 03, 2019 6:42 pm
Year and Model: 1997 Volvo 850
Location: Iowa
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B5234T Wastegate Setup

Post by BrickyardCustoms »

I just bought a 1995 850 turbo wagon b5234t to swap into my 97 sedan. I have an upgraded ARD factory style waste-gate actuator, and I’m not sure what to set it’s base psi to. IPD has in their turbo talk video a reccomended 1.8psi but that’s seems low, this car is also going to have a few upgrades and I have heard of people tightening these up a little.
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jimmy57
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Year and Model: 2004 V70R GT, et al
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Post by jimmy57 »

that is the spec. The base setting is very low as the turbo control valve will bleed the wastegate apply pressure down. Some ECMs cycle the TCV pretty much continuously and later ones will not do any control signal at times. Ones with continous cycling always leak so the setting is lower.
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