TS/Xd Long Tube Header & Intake dyno results

[richardholdener]

Here are the dyno results of the new long-tube header for the 1.8L Taris TS and Scion Xd (possibly other apps as well). Equipped with just a home-made air intake, the otherwise stock Xd produced 123 wheel hp and 121 ft-lb of torque. Equipped with the long-tube headers and 2.5-inch mid pipe (2.25 would work equally well) and no axle back, the motor produced 134 wheel hp and 134 ft-lb of torque. At just 3000 rpm, the header and mid pipe offered an additional 15 ft-lb of torque. Next we installed the prototype of the Xd intake manifold. The peak power numbers jumped to 148 hp and 137 ft-lb of torque. At 6000 rpm, the intake offered gains of 16 hp. It appears from this testing that if we add an NST u-pulley and receive the same results as we did on the 1.5L Yaris motor, the 1.8L can produce a real 150 wheel hp (possibly more if it reponds favorably to the FIC). Can someone (Castrex) post this over on the Scion site as well-I can't seem to get the images attached. BTW-We already made 151 wheel hp with a version of the intake that won't be offered for sale-it adds a bit more peak power but sacrafices too much elsewhere)