Cams Specs For B Series Engines

**Trust-Me** · 11-09-2003 12:12 PM

Cam Specs

B - Series

Manufacturer Intake Exaust
Toda Spec A 11.6 mm, duration - 250 @ 1mm 11.2mm, duration - 240 @ 1mm
Toda Spec B 12 mm,duration - 255 @ 1mm 12 mm, duration - 245 @ 1mm
Toda Spec C 12.5 mm,duration - 255 @ 1mm 12.5 mm, duration - 255 @ 1mm

Jun Type 1 10.9 mm, duration - 265.3 @ 1mm 10.0 mm, duration - 268 @ 1mm
Jun Type 2 12.0 mm, duration - 266.6 @ 1mm 10.9 mm, duration - 265.3 @ 1mm
Jun Type 3 12.0 mm, duration - 265.3 @ 1mm 11.5 mm, duration - 265.3 @ 1mm

Spoon Sports 11.53 mm, duration - 256 @ 1mm 11.13 mm, duration - 245 @ 1mm

Skunk 2 stage1 11.58 mm, duration 252 @ 1mm 10.9 mm, duration 249 @ 1mm
Skunk2 stage 2 12.3 mm, duration 266 @ 1mm 11.8 mm, duration 262 @ 1mm
Skunk2 stage 3 12.8 mm, duration 273 @ 1mm 11.5 mm, duration 273 @ 1mm

Crower 63400 10.72 mm, duration - 234 @ 1mm 9.60 mm, duration - 234 @ 1mm
Crower 63401 11.38 mm, duration - 249 @ 1mm 10.54 mm, duration - 240 @ 1mm
Crower 63401T 11.81 mm, duration - 230 @ 1mm 11.30 mm, duration - 226 @ 1mm
Crower 63402 11.84 mm, duration - 258 @ 1mm 11.84 mm, duration - 251 @ 1mm
Crower 63402A 11.84 mm, duration - 246 @ 1mm 11.81 mm, duration - 239 @ 1mm
Crower 63403 12.04 mm, duration - 267 @ 1mm 11.84 mm, duration - 257 @ 1mm

Integra Type R 11.5 mm, duration - 240 @ 1mm 10.5 mm, duration - 235 @ 1mm

Civic Type R 11.5mm, duration - 243 @ 1mm 10.5 mm, duration - 235 @ 1mm

Hope you enjoy it!
okies credit goes to superhonda.com again..

**INFLYT** · 11-09-2003 12:45 PM

Observing those spec's, at which point is an aftermarket ECU required?

**Trust-Me** · 11-09-2003 12:48 PM

well i guess i would change the ECU for all of them, but u should get away for the 1st stage with ur stock ECU but i would definately change the ECU straight away for stage 2 and on..and upgrade springs and valves