Wondering if anyone can give me the specs on the primary (I think that's what it's called, but whatever the non-vtec lobe is called) lobe on GSR cams? INT/EXH lift, duration, and LSA please.

 

Anybody have this information?

 

I just recently cam doctored some B16 Auto intake cam primaries.

Primary:
Valve Lift: 0.146"
Cam Lift:0.104"
Duration at 0.050" lift: 132 degrees

Secondary:
Valve Lift: 0.297"
Cam Lift:0.205"
Duration at 0.050" lift: 184 degrees

GSR primaries will be a lil bigger than these numbers.

 

I just found out that these numbers are actually published in the Helms. I have the 1990 civic v-tec supplement (B16) so I'm posting those numbers below (page 5-6). Can someone with an Integra Helms please post for the B18C1?

Intake A lobe: opens at 10* ATDC, closes at 30* ABDC, lift 8.0mm
Intake C lobe: opens at 20* ATDC, closes at 20* ABDC, lift 5.0mm
Exhaust A lobe: opens at 20* BBDC, closes at 20* BTDC, lift 4.5mm
Exhaust C lobe: opens at 30* BBDC, closes at 10* BTDC, lift 7.5mm
VTEC intake lobe: opens at 10* BTDC, closes at 40* ABDC, lift 10.4mm
VTEC exhaust lobe: opens at 40* BBDC, closes at 5* ATDC, lift 9.4mm


Modified by Shu at 2:03 PM 6/16/2004


Modified by Shu at 2:25 PM 6/16/2004