Pro-M 76MM or 87MM MAF, and 42lb injectors (with chip reburn) Putting all of these together with the first stage will get your car safely past 250RWHPĤ. We realize there may be other aftermarket parts you can add, but these are the ones we have found to be most effective.įollowing these will get your SC up in the 210-220RWHP Range. After significant time at the dyno, we have come up with this list of suggested modifications. The extra 1.5 psi of boost was especially beneficial from 2,000 rpm to 3,600 rpm, where the 3.8L pumped out more than 300 lb-ft of torque.We have put hundreds of hours into the development of Thunderbird SC products and finding out which combinations work best.
Increasing the blower speed via the revised idler resulted in a jump in peak power to 216 hp, but the torque gains were as high as 12-15 lb-ft through most of the curve. This time we employed a 5 percent overdrive idler pulley, as the Super Coupe motors rely on a secondary idler (driven off the crank) to provide drive to the blower. With plenty of inlet flow available to the supercharged motor, we once again stepped up the blower speed. The larger MAF added power throughout the rev range, but was most effective near the top (where the additional airflow would be most useful). The C&L improved the peak power output to 211 hp at 4,100 rpm and torque production was now up to 315 lb-ft at 2,800 rpm. Being a true bolt-on performance piece, installation was easy, and we were up and running in no time. A call to C&L netted us a 73mm meter along with a free-flowing cone filter. After we had such good success with the K&N filter, we looked at the small factory mass airflow meter (MAF). With the blower now making more boost, we turned our attention to the inlet system.
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