Unorthodox Racing Underdrive
Check out the Stage 2 pulley install here
I have found in the heat of Dallas in summer that at a stop light your AC will run weak
due to low rpms... goose it up a few 100 rpms and you will run cooler. With the car
in motion the AC is fine. At night the car blows ice cold. I also have not had
any cooling issues though I do not have a Consult or Techtom to verify. I also have
the Nismo radiator so I didn't expect a cooling issue. The belt is a 6 groove 390
length (I hope I translated that right - Courtesy Nissan has the belt number cross
referenced). Only reason I know that is last weekend the alternator seized, chewed
up the belt, and left me stranded. Luckily with an Optima battery you can drive that
4 cylinder a long time! - at least back to Courtesy!
I have been running the set-up for about a month. Installed and bought from Courtesy
Nissan - $199 for the pulleys + 2 hours labor. I walked in and they had one set on
display. The car was on the rack the next morning. John at SERious Performance is an
Unorthodox dealer and put the bug in my ear at the last Texas Rally at Austin. I
believe his price was a bit more competitive - $180. The only dyno run I was able to
make was at Team Dynotech in Dallas. I rushed over there on a blistering day with AC
blasting. I was supposed to be on the way to my brother's graduation and tried to
squeeze a run in. With the car completely heat soaked (no cool down time and no fan
to put on engine or cold air intake) I managed a 1 HP gain (133.3 vs 134.2) and 1 lb ft
torque (129.0 vs 130.0). Also to note I disconnected the Stillen Fuel Pressure Riser
for this run.
||Good shot of the crank pulley, with water pump belt on and the
alternator belt off.
||Shot from above with motor mount and alternator out of the way to
get a clean picture.
||Shot directly below up into engine showing the 2 pully set-up.
||Extreme close-up of crank pulley installed.