User Manual

ManualsBrandsPrecision Turbo and Engine ManualsCarPrecision Turbo & Engine PW66 Wastegate

Precision Turbo & Engine 616A South Main Street P.O. Box 425 46341-0425

Phone (219) 996-7832 Fax (219) 996-7749 Web: www.precisionturbo.net

Thank you for purchasing our PW66 external wastegate. With over 60 years of combined turbocharger

development and racing experience, we at Precision Turbo take great pride in providing you with the

best external wastegate on the market today. The PW66 is made from high grade, high temperature

stainless steel and billet aluminum components. It features our own purpose designed Kevlar reinforced

wastegate diaphragm and a 347 stainless investment cast valve body. Our investment cast valve body

has a smooth internal surface and the largest valve on the market today. This gives you better flow and

more accurate boost control. The PW66 features a Nickel Chromium Alloy valve and 5 different 17-7

precipitation hardened springs. Also included are stainless steel inlet and outlet flanges with clamps.

With a satin black anodized, 6061 aluminum billet wastegate cap you will have years of good looks and

protection from the elements. The PW66 is generally compatible with most aftermarket manual and

electronic boost controllers on the market today. If you have any questions or need any technical

support, our experienced Sales Staff are here to help.

Summary of content (9 pages)

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Precision Turbo & Engine 616A South Main Street P.O. Box 425 46341-0425 Phone (219) 996-7832 Fax (219) 996-7749 Web: www.precisionturbo.net Thank you for purchasing our PW66 external wastegate. With over 60 years of combined turbocharger development and racing experience, we at Precision Turbo take great pride in providing you with the best external wastegate on the market today. The PW66 is made from high grade, high temperature stainless steel and billet aluminum components.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Contents Please verify that the following parts are included in the box. PART NUMBER WG002 WG002-104 WG002-103 WG002-102 WG002-101 WG002-100 WG002-026 WG002-019 WG002-010 WG002-011 WG002-050 WG002-012 WG002-051 PW66-MAN QTY 1 1 1 1 1 1 2 2 1 1 1 1 1 1 DESCRIPTION External wastegate assembly Small natural 1.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Operational overview Your PW66 wastegate, controls turbocharger boost, by bypassing turbine inlet exhaust gas via a spring loaded valve diaphragm assembly. Spring rate, in conjunction with boost pressure signal, and back pressure control the opening point of the wastegate valve. Once the spring rate has been over come, the valve will open.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Installation Instructions Note: The optimum mounting and placement of your new PW66 wastegate will be determined by your manifold and turbocharger configuration. These notes should be considered when installing your new wastegate. - - - - Be sure to install the valve seat into the body of the wastegate before final installation. Tighten the supplied V-band clamp bolts to 85-90 inch /lbs (9.6 – 10.2 Newton meters).
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Wastegate spring removal and installation 1. Remove the PW66 WASTEGATE from the inlet pipe. USE CAUTION AS THE WASTEGATE MAY STILL BE VERY HOT! 2. WARNING! THE WASTEGATE CAN TOP IS UNDER HIGH SPRING TENSION. USE SAFETY GOGGLES AND REMOVE WITH CARE. Using a 4mm hex key, loosen and remove the wastegate v-band clamp. The use of a press or vise may be used to hold down the wastegate can top while loosening the clamp.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Wastegate spring removal and installation continued 3. Remove the spring top plate and spring/springs from the wastegate. Determine which spring/springs you will be installing using the Wastegate Spring Utilization Chart on page 8. Install the spring/springs into the wastegate, on top of the diaphragm and install the spring top plate on top of the springs. Use care to ensure that you do not to tear or scratch the diaphragm. 4.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Boost controller installation recommendations A. Spring Rate Controlled Method If you want to use spring rate to control boost level, install boost signal hose from the compressor cover hose barb, to the bottom banjo barb port of the wastegate can. You will leave the top banjo barb port unused and vented to atmosphere.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Wastegate spring utilization chart PSI 0.9 1.8 2.7 2.9 3.8 6.3 7.2 8.1 9 9.2 10.1 12.8 13.7 14.6 15.5 15.7 16.6 BAR 0.06 0.12 0.19 0.20 0.26 0.43 0.50 0.56 0.62 0.63 0.70 0.88 0.94 1.01 1.07 1.08 1.14 SPRINGS Yellow Red Natural X PSI COLOR SIZE 1.
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PART NUMBER: PBO085-3000 NAME: PW66 DESCRIPTION: 66MM EXTERNAL WASTEGATE Warranty Each Precision Turbo PW66 wastegate is warranted to be free from manufacturer’s defect for a period of 12 months or 12,000 miles, whichever occurs first from the date of the original invoice. Manufacturer’s warranty otherwise applies. Seller expressly disclaims all implied warranties of merchantability and or fitness for a particular purpose.