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

cam advancing?

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Old Mar 23, 2011 | 08:12 AM
  #1  
kill4thril's Avatar
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From: liverpool ny
Car: 1990 firbird formula
Engine: 355ci
Transmission: t56 spec3+ cluch
Axle/Gears: 9 bolt disc brake 2.77
cam advancing?

ok so i was reading around and saw something about advancing my cam timing i was just wondering if some one could give me some more info on what it does and if its woth it ?
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Old Mar 23, 2011 | 12:07 PM
  #2  
EagleMark's Avatar
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From: Idaho
Re: cam advancing?

Advancing cam timing will give more top end power. Retarding will give more bottem end power. Doing either with out a degree wheel while building a motor can cause horrible engine damage...
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Old Mar 23, 2011 | 03:47 PM
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ex-x-fire's Avatar
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Re: cam advancing?

Eaglemark has it back wards, adv. the cam boasts low end, retarding it helps top end.
You can get away w/ 4 degrees either way, unless you have a wild cam.
A a timing chain wears, it stretches, it retards the cam.
On a street motor, I'd go w/ a fresh timing set & advance it 2*.
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Old Mar 23, 2011 | 05:20 PM
  #4  
xch3no2's Avatar
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From: Pacific NW
Car: 89 K3500 Fleetside
Engine: RAT *tbi* EBL
Transmission: TH400
Axle/Gears: 3.73-Dana 60
Re: cam advancing?

ya eaglemark was backwards. Advancing will drive the powerband down and vice versa.

It's not worth it for a stock cam
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Old Mar 25, 2011 | 08:07 AM
  #5  
EagleMark's Avatar
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Re: cam advancing?

I guess age is showing again, dam I hate when I do that...
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Old Mar 25, 2011 | 01:26 PM
  #6  
xch3no2's Avatar
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From: Pacific NW
Car: 89 K3500 Fleetside
Engine: RAT *tbi* EBL
Transmission: TH400
Axle/Gears: 3.73-Dana 60
Re: cam advancing?

ya otta seen some of the goofy stuff I've posted...

Last edited by xch3no2; Mar 25, 2011 at 02:09 PM. Reason: fer mo betta grammer
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Old Mar 25, 2011 | 02:16 PM
  #7  
EagleMark's Avatar
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From: Idaho
Re: cam advancing?

yeah but by the picture in your avatar your oltimers could be disaterous...
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