Camshaft info and gurus please..

[mr envy]

Hey guys im rebuilding a c30a I brought in pieces and with tonnes of spare pieces and some non existant pieces... but have recently been assembling all 3 sets of heads noticing a few differences as I did so. first question what is the difference between R1 and R2 camshafts... one set of heads are both R1 R1 and the othe is R1 R2... hmmm but my third were the best. regrinds but I need some into from people who know the aftermarket cams please... here are the specs I was sent on them. cam pm opinion also.. greatly appreciated. heads have stainless valves, new springs retainers clips etc but no porting that I can tell... Thanks. Cody C:\ProgramFiles\AudieTech\AudieTech\HONDA\OHC81 Exhaust vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe E1
Centerline 100.00 BTDC
Lift @ TDC 0.0486
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat
Follower Dia. 0.7104 0.012 239.09 41.40 BBDC 17.69 ATDC 15.97
0.050 199.11 19.56 BBDC 0.45 BTDC 15.38
0.21092 --- PEAK CAM LIFT ---
0.31693 --- PEAK VALVE LIFT ---
<o></o>
C:\ProgramFiles\AudieTech\AudieTech\HONDA\OHC81 Exhaust vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe E1a
Centerline 99.70 BTDC
Lift @ TDC 0.0802
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat
Follower Dia. 0.7083 0.012 260.81 51.65 BBDC 29.16 ATDC 19.19
0.050 219.60 29.49 BBDC 10.11 ATDC 18.57
0.23484 --- PEAK CAM LIFT ---
0.35400 --- PEAK VALVE LIFT ---

C:\Program Files\AudieTech\AudieTech\HONDA\OHC81Exhaust vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe E1b
Centerline 104.16 BTDC
Lift @ TDC 0.1226
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat
Follower Dia. 0.9870 0.012 286.20 69.23 BBDC 36.97 ATDC 26.23
0.050 243.40 45.84 BBDC 17.56 ATDC 25.60
0.29685 --- PEAK CAM LIFT ---
0.45011 --- PEAK VALVE LIFT ---
<o></o>
C:\ProgramFiles\AudieTech\AudieTech\HONDA\OHC80 Inlet vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe I1
Centerline 100.00 ATDC
Lift @ TDC 0.0462
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat
Follower Dia. 0.7256 0.012 235.75 15.71 BTDC 40.04 ABDC 15.89
0.050 197.53 1.22 ATDC 18.75 ABDC 15.35
0.21110 --- PEAK CAM LIFT ---
0.31720 --- PEAK VALVE LIFT ---
<o></o>
C:\ProgramFiles\AudieTech\AudieTech\HONDA\OHC80 Inlet vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe I1a
Centerline 99.84 ATDC
Lift @ TDC 0.0778
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat <o></o>
Follower Dia. 0.7289 0.012 256.87 26.56 BTDC 50.30 ABDC 18.98
0.050 217.45 8.90 BTDC 28.54 ABDC 18.40
0.23472 --- PEAK CAM LIFT ---
0.35381 --- PEAK VALVE LIFT ---
<o></o>
C:\ProgramFiles\AudieTech\AudieTech\HONDA\OHC80 Inlet vtec.CPP
LIFT DUR. OPEN CLOSE AREA
Lobe I1b
Centerline 106.74 ATDC
Lift @ TDC 0.1246
Rocker Ratio 1.55
Lobe Separation -----
Minimum Flat <o></o>
Follower Dia. 1.0360 0.012 290.68 35.94 BTDC 74.74 ABDC 27.50<o></o>
0.050 248.04 17.29 BTDC 50.76 ABDC 26.88<o></o>
0.30590 --- PEAK CAM LIFT 0.46415 --- PEAK VALVE LIFT

 

[mr envy]

the cam markings confuse me still..

 

[greenberet]

I think Shad Huntley or Jon Martin would probably be able to shed some light on what kind of camshafts you have.

For what it’s worth, the lift and lobe centers you posted above don’t match Comptech's published specs, either of SoS's published specs, or any of Toda's published specs.

 

[mr envy]

yeah am aware of that much thanks

 

[mr envy]

bump anyone shed light on the r1 r2?