Mystery cam, any ideas?

[Shannon Whitehead]

#102300

Looks like a good mild street cam.

[Adam Faux]

#208010

Since i just bought that cam do i need new valve springs?

[Roddy]

#208149

billseast said:
Since i just bought that cam do i need new valve springs?

I would say so to be on the safe side. Fair bit of lift in that cam.

[1TONY1]

#272876

Roddy said:
I would say so to be on the safe side. Fair bit of lift in that cam.

I agree, if any age or miles on yours it’s a LOT easier now and not that costly.

[Adam Faux]

#273856

I got better springs and the cam is installed. Just need to get the heads done.

[Shannon Whitehead]

#13462

I picked up a forged rotating assembly for my 2003 Viper and it came with a custom grind cam.

Anyone able to decipher the specs? Would this be good for a blower cam or better for N/A abuse? I’m aware the factory rocker arm ratio is 1.7 but the specs are measured for 1.6 rockers.

I contacted Comp Cams and they provided the Cam Card.

ROCKER ARM RATIO INTAKE 1.60/EXHAUST 1.60.
DURATION @ .050 INTAKE 224
DURATION @ .050 EXHAUST 230
VALVE ADJ INTAKE .000
VALVE ADJ EXHAUST .000
LOBE LIFT INTAKE .3590
VALVE LIFT INTAKE .574
LOBE LIFT EXHAUST .3560.
VALVE LIFT EXHAUST .569
LOBE SEPARATION 114.0
DURATION .006
INTAKE C/L 112.0
TAPPET LIFT INTAKE 274
CAM ADVANCE 2
TAPPET LIFT EXHAUST 282
HYDRAULIC Y
VALVE TIMING .050
OVERHEAD CAM N
VALVE OPEN INTAKE 0
JOURNAL DIAMETER STD 2.090
VALVE OPEN EXHAUST 51
RECOMMENDED VALVE SPRINGS
VALVE CLOSED INTAKE 44
DEPARTMENT P
VALVE CLOSED EXHAUST 1-
SPC INSTR FOR CUSTOMER

Thank you.

[Author]

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