advance my comp cam or not

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Feb 26, 2011 | 08:05 PM

jjbiggers2

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advance my comp cam or not

Should i advance my cam i have a 01 ls1 stock heads, truck intake and shorty headers, full exhaust 3.08 gears right now its in a 99 s10 blazer? I am going to run a 3400 stall looking for good low end not trying to race just want good power. Here are the cam specs.
Serial # X 9309 Spec Card# 026347
Part # 54-000-11 CAMSHAFT, LS1 CHEVY LS1/GEN III '97-UP
Core C54-11C CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE
Grind # LS1 3714R /3716R HR114.0
DURATION @ .050 INTAKE 222 ROCKER ARM RATIO
VALVE ADJ INTAKE .000 DURATION @ .050 EXHAUST 226 INTAKE 1.70
VALVE ADJ EXHAUST .000 LOBE LIFT INTAKE .3330 EXHAUST 1.70
VALVE LIFT INTAKE .566 LOBE LIFT EXHAUST .3350
VALVE LIFT EXHAUST .569 LOBE SEPARATION 114.0
DURATION .006 INTAKE C/L 114.0
TAPPET LIFT INTAKE 275 CAM ADVANCE 0
TAPPET LIFT EXHAUST 279 HYDRAULIC Y
VALVE TIMING .050 OVERHEAD CAM N
VALVE OPEN INTAKE 3- JOURNAL DIAMETER STD 2.165
VALVE OPEN EXHAUST 47 RECOMMENDED VALVE SPRINGS
VALVE CLOSED INTAKE 45 DEPARTMENT R
VALVE CLOSED EXHAUST 1- SPC INSTR FOR CUSTOMER

Last edited by jjbiggers2; Feb 26, 2011 at 08:16 PM.

Feb 26, 2011 | 08:32 PM

jeff keyuk

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Keep it simple. zero.The shorty header will not do the job! Then you will need a tune ,to make it run wright.

Last edited by jeff keyuk; Feb 26, 2011 at 08:39 PM. Reason: wrong wording!

Feb 26, 2011 | 08:55 PM

garygnu

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call comp and ask them ,maybe a cam guru will chime in.

Feb 26, 2011 | 09:09 PM

jjbiggers2

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No racing just street driven. And yes it will get tuned.

Feb 26, 2011 | 09:12 PM

jjbiggers2

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Nobodys making a decent long tube for the s10s that I can afford. I may get some one day.

Feb 27, 2011 | 09:09 AM

hammertime

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From: Smithton, IL

Sounds like the cam is already installed - was it degree'd when installed? If you know it's installed on a 114 ICL, then I think it would be best to advance it 4 degrees for your application.

Unfortunatley, that does open your exhaust valve quite a bit earlier as well, but is the bext compromise for you you wish to use the car. Another option would be a custom grind, like shown below.

Code:

222/226 114+0   222/226 114+4  218/226 109+2
IVO      -3             1              2
IVC      45             41            36
EVO      47            51             44
EVC      -1             3              2

The 218/226 cam still has 0 overlap at .050" lift, so should work fine with shorty headers and should not idle to much differently than your current cam. It will make more torque sooner than your cam now. It should peak around 5,600 or so but pull well to 6,000, whereas your current cam probably peaks after 6,300 if installed on a 114 ICL.

Not only do you get more useable power like this, you also limit the RPM required to use it, paramount to keeping a 4L60e allive (although you didn't mention what trans you have).