GFB T9020 User Manual

Respons TMS Valve

Installation Instructions

Part # T9020

P.O. Box 1017 Riverwood NSW 2210

Ph: [phone] Fax: [phone]

Website: www.gfb.com.au Email: [e-mail]

Installation Instructions for GFB Respons (part # T9020)

The standard inlet and outlet of the GFB Respons T9020 are 20mm in diameter, which is a suitable size for
fitting into ¾” (19mm) I.D. hose. For different mounting options, a list of the adaptors available is found at
the end of these instructions, but if in doubt, check out the adaptors page on our website

www.gofastbits.com.au, or consult your local dealer.

T9020 is suitable for custom installations, and is also a suitable replacement for factory valves
on the following vehicles (some applications may require the factory hoses to be extended or
modified):

• Subaru WRX/STi MY94-96

• Subaru Legacy RS Turbo MY89-93

• Ford Laser TX3 KC-KH

• Mazdaspeed Miata SE

• Mazda RX7 Series 4-6

• Toyota Supra JZA80

For cars without factory fitted blow-off valves, a
location for the Respons must be found on the
piping between the turbo outlet and the throttle
body, and a suitable adaptor must be welded in
that location to which a ¾” hose can be
connected. A hose to connect the Respons
recirc outlet must also be fitted to the piping
before the turbo (after the airflow meter if one is
installed).

NOTE: GFB recommends mounting the BOV
closer to the throttle body rather than the turbo,
since some factory turbo piping can cause
pressure drops which may affect the
performance of the valve. If an intercooler is
used, it is preferable to mount the valve after the
intercooler, before the throttle.

1) Push the base inlet of the Respons into the boost pressure source hose (i.e. from between the turbo and
throttle body), and secure with a hose clamp.

2) Connect the recirc outlet on the side of the Respons (opposite the trumpet) to the recirc hose that leads
back to the turbo intake and secure with another hose clamp.

3) Connect the vacuum nipple on the top of the Respons to a suitable manifold vacuum source (after the
throttle body), using rubber or silicone vacuum hose of at least 4mm I.D. Try to avoid attaching any
other hoses and t-pieces to the vacuum hose and keep it as short as possible, as this will ensure rapid
response from your GFB valve. DO NOT CONNECT THE VACUUM HOSE TO BOOST

CONTROL, FUEL PRESSURE REGULATOR OR BRAKE BOOSTER HOSES.