Respons TMS Valve Installation Instructions Part # T9004 P.O. Box 1017 Riverwood NSW 2210 Ph: +612 9534 0099 Fax: +612 9534 3999 Website: www.gfb.com.au Email: sales@gfb.com.
Installation Instructions for GFB Respons (part # T9004) For Nissan Silvia/200SX S14-15 models. Please read the operation notes BEFORE installation. 1) Unclamp the battery and remove it. This will make access much easier, but before doing so check that it will not affect any aftermarket alarm, stereo or other electrical accessories. 2) Loosen the hose clamps shown in figure 1. Using a 10mm socket, undo the two mounting bolts holding the factory valve to its bracket.
Spring Adjustment Contrary to popular belief, the spring pre-load DOES NOT need to be adjusted to suit different boost levels. The valve will stay shut under full throttle conditions regardless of boost pressure or spring pre-load. Rather, the spring pre-load affects how easily the valve opens when you lift the throttle, and how long it stays open when it vents. Adjusting the spring is a simple matter of ensuring the valve opens enough to release the air, but not long enough to cause idling problems.
Adjusting the Noise The unique patented venting bias adjustment feature on the GFB Respons lets you vary the amount of air vented to atmosphere or recirc, thereby changing the volume of the sound. Turning the venting bias adjuster (figure 3) fully anticlockwise means all the air will vent through the trumpet, which is the loudest setting. Turning the adjuster clockwise from this position will begin to open up more of the recirc outlet, until a ratio of 50/50 is reached.
