anyone kno what the difference is (if any) between stock gsr cams and stock b16 cams? i kno the type r's are different. i was just wondering about the gsrs n b16s tho. i get mixed responses all the time. was wonderin if anyone could tell me for sure. thanks yall!

 

the gsr cams have a high degree of duration.

 

so im guessing that the b16 cams are higher lift? or that they dont have as much duration?

 

The vtec lobes on usdm b16 cams are .02 mm smaller than the gsr cams, as I have measured several sets.
The claimed lift spec for gsr vtec is 10.7mm lift and si at 10.5 mm. That does not agree with my lobe measurements, so take it for what it is worth.
I have found that Gsr cams appear to have the same vtec lobe diameter as jdm b16 cams, based on my measurements.
As for duration, the published specs for 99 si b16 cams are IE 265/267 while gsr spec at IE 274/276
Those are for the intake cam. The exhaust sticks I have measured appear to be identical between gsr and b16 usdm and jdm. Published lift for exhaust is 9.6 mm
For the record, Type R civic and 98 + type R Integra cams are published at IE 278/280 and 11.5/10.5 mm

 

so what ur saying is, stock for stock, gsr cams are better than b16s (at least on the intake side)? while type r cams are just bad ass stock cams!

 

great info! rep'd

 

haha ya im learnin!!!!

 

type r cams are still oem as bad ass waaheva

 

civic type R

 

Taken from K-Series

Following Cams Measured at 1mm of lift:

Integra Type-R (98 ITR)
Int- 11.5mm lift / 240 dur.
Exh- 10.5mm lift / 235 dur.


Civic Type-R And Integra Type-R (01 ITR)
Int- 11.5mm lift / 243 dur.
Exh- 10.5mm lift / 235 dur.


Skunk2 Stage 1
Int- 11.5mm lift / 252 dur.
Exh- 10.8mm lift / 249 dur.


JUN Type 1
Int- 10.9mm lift / 265 dur.
Exh- 10.0mm lift / 268 dur.


Spoon Sports
Int- 11.5mm lift / 256 dur.
Exh- 11.1mm lift / 245 dur.


JUN Type 2
Int- 12.0mm lift / 267 dur.
Exh- 10.9mm lift / 265 dur.


Skunk2 Stage 2
Int- 12.3mm lift / 266 dur.
Exh- 11.8mm lift / 262 dur.


JUN Type 3
Int- 12.0mm lift / 265 dur.
Exh- 11.5mm lift / 265 dur.


Skunk2 Stage 3
Int- 12.8mm lift / 270 dur.
Exh- 11.8mm lift / 279 dur.



Following cam measured with 0mm of lift:

B16A3
Int- 10.5mm lift / 265 dur.
Exh- 9.6mm lift / 267 dur.

B18C1
Int- 10.7mm lift / 274 dur.
Exh- 9.6mm lift / 276 dur.

Crower 400
Int- 10.7mm lift / 279 dur.
Exh- 9.6mm lift / 280 dur.


Civic Type-R And Integra Type-R (01 ITR)
Int- 11.5mm lift / 278 dur.
Exh-280 dur. / 10.5mm lift


Crower 401 (NA)
Int- 11.3mm lift / 282 dur.
Exh- 10.5mm lift / 277 dur.


Crower 401-T (FI)
Int- 11.8mm lift / 280 dur.
Exh- 11.3mm lift / 276 dur.


Toda Spec A
Int- 11.6mm lift / 290 dur.
Exh- 11.2mm lift / 280 dur.


Crower 402
Int- 11.8mm lift / 297 dur.
Exh- 11.8mm lift / 287 dur.


Toda Spec B
Int- 12.0mm lift / 295 dur.
Exh- 12.0mm lift / 285 dur.


Crower 403
Int- 12.0mm lift / 295 dur.
Exh- 11.8mm lift / 293 dur.


Toda Spec C
Int- 12.5mm lift / 295 dur.
Exh- 12.5mm lift / 295 dur.


Toda Spec D
Int- 12.9mm lift / 305 dur.
Exh- 11.9mm lift / 315 dur