|
|
| BASELINE | | RPM | LB-FT | HP | | 2,500 | 165 | 83 | | 2,600 | 172 | 87 | | 2,700 | 182 | 94 | | 2,800 | 184 | 98 | | 2,900 | 186 | 103 | | 3,000 | 188 | 108 | | 3,100 | 189 | 112 | | 3,200 | 191 | 117 | | 3,300 | 193 | 122 | | 3,400 | 192 | 125 | | 3,500 | 191 | 128 | | 3,600 | 190 | 131 | | 3,700 | 189 | 134 | | 3,800 | 192 | 140 | | 3,900 | 206 | 155 | | 4,000 | 222 | 171 | | 4,100 | 225 | 177 | | 4,200 | 228 | 184 | | 4,300 | 232 | 191 | | 4,400 | 231 | 195 | | 4,500 | 231 | 199 | | 4,600 | 230 | 202 | | 4,650 | 230 | 204 | | | | | Average torque | 201 lb-ft | | Average power | 139 hp | | | | QUARTER-MILE | | 60-ft: | 2.27 | | 11/48-mile: | 9.88 @ 69.61 mph | | 11/44-mile: | 15.40 @ 90.53 mph |  Murphy uses the shortest accelerator...  Murphy uses the shortest accelerator pumps he can get, since they have the most fuel capacity. A garter spring (hidden) keeps tension on the cup, which helps keep it sealed against the pump cavity. The cups are methanol resistant, a plus when running California-spec gas. Murphy also pays attention to delayer spring length. If the spring binds, the pump can't compress the fluid and can't provide a full pump shot.  This type of Q-jet actually...  This type of Q-jet actually has a throttle position sensor (TPS). It's important that the sensor protrudes through the proper opening in the gasket (arrow) so it can contact the spring-loaded TPS actuating pin, which runs off the accelerator pump. The hooklike appendage is used to adjust TPS height, if necessary.  In this case, computer control...  In this case, computer control doesn't eliminate the traditional Q-jet voodoo involving secondary metering rods and hangers. "There used to be about 40 rods," Murphy observes. "Now we're down to 10." Hole location on the hangers varies in 0.005-inch increments; raising the hole makes for a richer mixture that kicks in faster. Rods are lettered from B to V; we started with AU rods on an I hanger, as opposed to a stock CH on an M hanger
|