LC Engineering has provided the racing industry with
a performance kit that includes a 4” Single Groove Crankshaft Power
Pulley, 7” Billet Water Pump Pulley and an Adjustable Timing Tag (Part
#18-410). We just recently developed a kit for the Street Customer that
includes the 4” Triple Groove Crankshaft Power Pulley, a 6” Billet Water
Pump Pulley and Adjustable Timing Tag (Part #18-415).
Underdrive Pulley Kit’s are basically used to slow down the revolution
speed of engine accessories such as water pumps, alternators, a/c pumps,
etc… This type of set up will assist the engine in gaining more usable
horsepower to the rear wheels.
Because of the extreme RPM ranges on Race applications, we recommend our
4” Single Groove Power Pulley and the 7” Billet Water Pump Pulley with
Adjustable Timing Tag. On Street applications we suggest using our Triple
Groove Power Pulley at the crankshaft and the 6” Billet Water Pump Pulley
with Adjustable Timing Tag. We do not recommend, however, any underdrive
kit on low RPM applications such as rock crawling or commuter traffic.
An Adjustable Timing Tag is required when converting to a 4” Crankshaft
Pulley which take’s the place of the original timing tag that is located
on the oil pump. To adjust the Timing Tag correctly, find indicated top
dead center on the #1 piston, set the pointer to the 0 (zero) mark on the
pulley and tighten it down. You will now use the pointer on the timing
tag to set correct timing. For specific applications or more detailed
information, please contact our Technical Department at 928-505-2501. |
