does anyone run a hotter plug on their H23. I know that on most engines that are naturally aspirated that a hotter plug will run better. does anyone know if it works on the H23 and if so does anyone have a part number.

 

1992-01 Prelude (Si non-vtec and ALL VTEC models)

Replacement Plugs (for Stock or relatively stock engines, i.e. bolt-ons, stock compression):

-NGK Laser Platinum Spark Plugs, part# PZFR6F-11 - $11.00 each
-NGK Copper Spark Plugs, part# ZFR6F-11 - $2.50 each
-NGK Iridium IX Spark Plugs, part# ZFR6FIX-11 - $6.95 each

Colder Plugs (for track use, heavily modified engines, Turbo, or Supercharged setups):

-NGK Copper Spark Plugs (1-step colder, ALL-MOTOR) - $2.50 each
-NGK Iridium Spark Plugs (1-step colder, ALL-MOTOR) - $6.95 each
-NGK Laser Platinum Spark Plugs (1-step colder, ALL-MOTOR) - $11.00 each

-NGK Copper Spark Plugs (1-step colder, FORCED INDUCTION) - $2.35 each
-NGK Iridium IX Spark Plugs (1-step colder, FORCED INDUCTION) - $7.50 each

These NGK Spark Plugs are pregapped, and ready to install immediately.

I ordered from preludeonline with a discount. I say they were worth it.