TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

ok what cam

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Old May 23, 2002 | 04:06 PM
  #1  
c4boom's Avatar
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20 Year Member
 
Joined: May 2002
Posts: 569
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From: concord New Hampshire
Car: 87 iroc and 88 k2500 tbi truck
Engine: l98 and lo5
Transmission: 700 r4's babby
ok what cam

out of these two cams which one is better for a 350 tbi with dart 180 cc heads

Intake/ Exhaust
Valve Adjustment 0 / 0
Gross Valve Lift 0.48 / 0.488
Duration At 0.006 Tappet Lift 258 / 264

--------------------------------------------------------------------------------

Valve Timing At 0.006
Open /Close
Intake 21 / 57
Exhaust 68/ 16

--------------------------------------------------------------------------------

These Specs Are For The Cam Installed At 108 Intake CL
Intake /Exhaust
Duration At 0.05 206 / 212
Lobe Lift 0.32 / 0.325
Lobe Separation 112

or

Intake/ Exhaust
Valve Adjustment 0/ 0
Gross Valve Lift 0.472/ 0.48
Duration At 0.006 Tappet Lift 252/ 258

--------------------------------------------------------------------------------

Valve Timing At 0.006
Open Close
Intake 20 / 52
Exhaust 63 / 15

--------------------------------------------------------------------------------

These Specs Are For The Cam Installed At 106 Intake CL
Intake /Exhaust
Duration At 0.05 200 / 206
Lobe Lift 0.315 / 0.32
Lobe Separation 110

on top of that which one would the computer like more
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Old May 23, 2002 | 04:21 PM
  #2  
NJ SPEEDER's Avatar
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Joined: Sep 1999
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From: Ewing, NJ
i would lean towards the first cam listed with teh 112degree lobe seperation. a little more lift, longer duration and a wider lobe seperation will make a bit more power and the wider lobe seperation will allow for more vacuum making the car a bit easier toi tune and much more pleasant to drive.

later
tim
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