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How to run more boost on my 850

How to go faster, stop quicker, and turn harder. Chips, exhaust, larger turbos, bigger/slotted/drilled rotors, high performance brake pads, manual boost controllers, performance shocks/struts/springs, airbox mods and more! Also discussion on HID and Xenon lights, aftermarket foglights and other exterior lighting.
devin850turbo
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How to run more boost on my 850

Post by devin850turbo » Mon Aug 19, 2013 5:38 pm

I have a 95 850 wagon turbo and im only pushing about 5 lbs of boost how can i up that?

devin850turbo
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Re: How to run more boost on my 850

Post by devin850turbo » Mon Aug 19, 2013 7:41 pm

can anyone help me out?

ChiNorm
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Re: How to run more boost on my 850

Post by ChiNorm » Tue Aug 20, 2013 1:56 pm

Go to Volvospeed and search for 'Stage 0' which will return your car to stock condition. Do this before any further upgrades. You probably have vaccum leaks, hence the low boost. Given the age of the car, the simplest thing is to simply replace all the vaccum lines.

Restore the motor to original condition before any further mods, else your money will be wasted.

Good luck.

95glt850
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Re: How to run more boost on my 850

Post by 95glt850 » Tue Aug 27, 2013 9:46 am

I had a similar issue with my 96 turbo when I first got it. I finished my stage 0 and still had only 5 lbs max. After rechecking all my vacuum lines i saw that the po had mixed up the lines on the tcv. I reinstalled them correctly and had the correct amount of boost. Check any of the schematics available on this site

Jush
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Re: How to run more boost on my 850

Post by Jush » Mon Sep 30, 2013 4:12 pm

Wastegate adjustment?

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