hey i just rememberd something, timing experts need opinion...

VIPERn94Five-0

Founding Member

Apr 28, 2002

3,352

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58

Poughkeepsie, NY

Jun 27, 2004

#1

• Jun 27, 2004

• #1

back after the manifold when i reset my timing, i was just going to set it at 10*...well i was sitting in the driver's seat and my buddy was on the gun looking at the marker...well when the timing mark was pointed at the 10* mark the timing was "bouncing" a little he said....and then when he advanced to like 12* it was rock solid....what would cause this???

...idk what made me just rememeber this(it was MONTHS ago) but i figured id ask


Anthony

 

mytight95

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Apr 11, 2003

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Dothan,Al

Jun 27, 2004

#2

• Jun 27, 2004

• #2

balanver slipping??????

jason

 

blksn955.o

Founding Member

Mar 15, 2002

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st.louis mo 314

Jun 27, 2004

#3

• Jun 27, 2004

• #3

I had a little bouncing issue, the first time I set my timing when I got my car. It was bouncing and would stay still for a little while and then bounce after I would reset it. I thought my dist. might be loose but it wasnt. I replaced my cap and rotor and it was fine. I also had a ball. go south and it could be that too, so keep an eye on it to see if it looks spun or wobbels(sp?).

 

R

rockin_rick

Member

Oct 9, 2003

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Jun 27, 2004

#4

• Jun 27, 2004

• #4

Mine isn't rock solid when I set it. I have a brand new MSD distro. I wonder if it isn't just my crappy timing light.

The electronics and circuitry in the light must also be considered. If it doesn't take EXACTLY the same amount of time between getting the spark signal and flashing the light, it would 'appear' that the timing is bouncing.

960rpm = 16 rev/sec
16 rps = .0625 sec/rev
.0625sec/rev / 360° = .00017 sec per degree of crank rotation

So.. if the light varys by .000085 sec in it's time from trigger-to-flash it could appear that the timing is bouncing a 1/2° (about what mine seems to bounce). That's the first time I calculated that. It may be my crappy light...

Is my math right? Opinions?

Rick

 

mytight95

Active Member

Apr 11, 2003

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Dothan,Al

Jun 27, 2004

#5

• Jun 27, 2004

• #5

sounds about right, i bought one from sear craftsman, paid 8500 and it is dead on

jason

 

GTPhreak

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Mar 16, 2000

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Rowlett, TEXAS

Jun 27, 2004

#6

• Jun 27, 2004

• #6

mytight95 said:

sounds about right, i bought one from sear craftsman, paid 8500 and it is dead on

jason

Click to expand...

I hate to tell you this, but you got ripped off

 

W

wytstang

Mustang Master

Mar 14, 2004

4,988

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Summerville,SC missing South Fl. weather :(

Jun 27, 2004

#7

• Jun 27, 2004

• #7

mytight95 said:

sounds about right, i bought one from sear craftsman, paid 8500 and it is dead on

jason

Click to expand...

for 8500 it better be

 

VIPERn94Five-0

Founding Member

Apr 28, 2002

3,352

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58

Poughkeepsie, NY

Jun 27, 2004

#8

• Jun 27, 2004

• #8

wytstang said:

for 8500 it better be

Click to expand...

for 8500 it better do all the work on my car for me....


Anthony