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

Help with tdc

Old Apr 12, 2003 | 07:57 PM
  #1  
Crisis's Avatar
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From: Hyvinkää, Finland
Help with tdc

Ok.. i know how to abjust the timing..

The thing is that some idiot at the shops when aseked to do a tune up set my timing to ~16 btdc.. the car car "fine" but the knock was pritty bad at ~3000rpms so i lost all top end power.

the problem is that when me and my friend adujusted the timimg againg the car ran worse when timing was set at TDC like the stikker in the engine bay states.. it would almost die.. and when dying timing would retard to about 10 atdc... the best the car would ideal was at 10~12 btdc..

what gives??? this is way wierd..
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Old Apr 13, 2003 | 02:55 AM
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BronYrAur's Avatar
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From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
There's a wire you need to disconnect when setting the timing on our cars, did you do this? Check this link out it explains what I'm talking about:

Setting Timing
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Old Apr 13, 2003 | 04:22 AM
  #3  
Crisis's Avatar
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I said i know how to set the timing...
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Old Apr 13, 2003 | 12:11 PM
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r90camarors's Avatar
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From: Morris, IL
Car: '91 t-top RS; '91 hrdtp Z28
Engine: LO3;383tpi
Transmission: 700r4;very nice 700r4
Axle/Gears: 4.10 zt posi, 3.70 auburn
Do you have the stock chip in there? You might have a bad timing chain as well.
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