So you have a charged honda k20, you could spend many ££££ on IPS KSC cams from Intrinsic Performance, or you could just do what IPS might have done - check out the specifications on the standard type r inlet cam and the type s exhaust cam.
Guess which might cost you a mint and which you can get for a few quid?
I suppose all that harmonic research must account for the difference.
IPS-Ksc
Specifications:
Intake - duration (lift)
low speed lobe: 253 (9.25mm)
high speed lobe: 285 (12.7mm)
Exhaust - duration (lift)
low speed lobe: 265.8 (8.10mm)
high speed lobe: 294.7 (11.25mm)
Honda Type S
Specifications:
Int mid: 224 @ .050" / .276" lobe lift / .483" gross lift w/1.75 ratio
Int sec: 176 @ .050" / .161" lobe lift / .273" gross lift w/1.7 ratio
Int pri: 170 @ .050" / .155" lobe lift / .263" gross lift w/1.7 ratio
Exh mid:219 @ .050" / .241" lobe lift / .422" gross lift w/1.75 ratio
Exh sec:175 @ .050" / .154" lobe lift / .261" gross lift w/1.7 ratio
Exh pri: 171 @ .050" / .148" lobe lift / .251" gross lift w/1.7 ratio
Honda Type R
Specifications:
Int mid: 217 @ .050" / .276" lobe lift / .483" gross lift w/1.75 ratio
Int sec: 165 @ .050" / .168" lobe lift / .285" gross lift w/1.7 ratio
Int pri: 160 @ .050" / .164" lobe lift / .279" gross lift w/1.7 ratio
Exh mid:212 @ .050" / .246" lobe lift / .430" gross lift w/1.75 ratio
Exh sec:170 @ .050" / .167" lobe lift / .284" gross lift w/1.7 ratio
Exh pri: 165 @ .050" / .167" lobe lift / .275" gross lift w/1.7 ratio
