Acura B18 Valve Spring Set Instructions
The COMP Cams® Acura/Honda B-Series VTEC valve spring set (Fig. A) utilizes dual springs on the intake side and a single spring on the exhaust side. Below are the information and diagrams to ensure correct installation.
Installation Instructions:
Dual Intake Spring
Installed Height: 60lbs at 1.375
Open Height: 220 lbs at .875
Coil Bind Height: .815
Spring Rate: 300 lbs per inch
Single Exhaust Spring
Installed Height: 43 lbs at 1.375
Open Height: 148 lbs at .875
Coil Bind Height: .815
Spring Rate: 210 lbs per inch
Warnings and maintenance information! It is important to orientate the outer valve spring of the intake and exhaust (See Fig. B & C) with the *tightly wound coils on the bottom. THE ORIENTATION OF THE INNER INTAKE SPRING IS NOT CRITICAL.
*Note: To figure out which end is the tightly wound end start at the end of the coil. Follow it around 180° (See Fig. D) then look at the distance between the two coils. Now follow the same steps from the other end of the spring. Whichever end is closest together needs to be on the bottom.
Get pdf Acura B18 Valve Spring Set
