2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Stock S5 turbo's boost patter and other ?'s

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Old Jan 11, 2004 | 11:25 PM
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1987RX7guy's Avatar
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Eat Rice Don't Drive it.
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From: Laredo, Tx
Stock S5 turbo's boost patter and other ?'s

Hey all I just wanted to know what the stock S5 turbo's boost patter is like. Also whats its efficiency range and by what PSI level is it over spinning itself.
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Old Jan 12, 2004 | 12:46 AM
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jacobcartmill's Avatar
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i think 15psi is where the actual turbo starts to fall off drastically in the efficiency.

i think 12-13 is maxing out the intercooler and shortly thereafter, 14, is where the turbo starts workin too hard for not enough money.
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Old Jan 12, 2004 | 01:31 AM
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NZConvertible's Avatar
I'm a boost creep...
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What's boost patter? You typed it twice...
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Old Jan 12, 2004 | 01:33 AM
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EIT
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anything over 1bar and the turbo tends to start puking oil, I think you nailed the efficiency pretty well. With a nice front mound the turbo makes power well to about .9bar; after which any higher pressures begin to just spin the **** out of the turbo abusing it's poor bearings.
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Old Jan 12, 2004 | 12:05 PM
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1987RX7guy's Avatar
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From: Laredo, Tx
Pattern ok

bump!
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