What should I set my timing at?

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jbon302

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Apr 17, 2005

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Apr 11, 2010

#1

• Apr 11, 2010

• #1

I have a basicly stock 91 gt with pullys headers flowmaster and h pipe. what should i put my timing at to get the best results/ Oh yea aod as well

 

Mustanglvr2006

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Mar 31, 2010

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Apr 11, 2010

#2

• Apr 11, 2010

• #2

God its been so loooong since I have even thought about this, BUT, I think its 10 degrees, I would wait for others to chime in tho, I'm getting old and my memory sometimes fails me. LOL

EDIT I did a little research., Ignition Timing
Most 5.0 Mustangs are delivered from the factory with the ignition timing set from 4-6° BTDC (Before Top Dead Center). Stock its set at 10 degrees, if you are running premium fuel you can start at 13°-14°. If you have no detonation, increase upward. Timing is free horsepower and will run better up to 19°-21° of timing. This is some info I found, I cant remember what I have my 92 LX set at, so I do not know if this is accurate.

Best of luck!!

 

f8tlfiveo

My wife likes my spool and blow-off valve.

Aug 8, 2007

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Apr 11, 2010

#3

• Apr 11, 2010

• #3

I have mine set at 12 running 87 octane with no pinging..you can go a little higher if you use 92-93 octane.I've seen some people running 15 already with no problems

 

87GT Drop Top

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May 1, 2009

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Apr 11, 2010

#4

• Apr 11, 2010

• #4

I have mine set @ 14. I use premium fuel.

 

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Cardinal Sin89

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Dec 8, 2009

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Apr 11, 2010

#5

• Apr 11, 2010

• #5

I have mine at 14 and no problems

 

wbrockstar

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Mar 31, 2010

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Nashville, Tn

Apr 11, 2010

#6

• Apr 11, 2010

• #6

timing

the perfect setting as everyone else has said is 14degrees if youre using 91-93 octane fuel.drive the car and make sure you get no detonation though,if you do then back it down 1 degree at a time and retest until it no longer detonates.i wouldnt go past 14 though.someone earlier on here said 19 or 20degrees but i beleive theyre referring to total timing.also make sure you pull the spout connecter out while checking and adjusting.its beside the tfi module harness.after you set and plug it back in,it advances the total timing between another 10 to 20 degrees.

 

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FriscoSteve

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Apr 1, 2010

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Apr 11, 2010

#7

• Apr 11, 2010

• #7

Dumb question, but what does detonation feel and/or sound like?

 

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garistang

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Mar 10, 2010

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Apr 12, 2010

#8

• Apr 12, 2010

• #8

there are no dumb questions just dumb answers. LOL

 

Cobra1741

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Mar 9, 2010

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Apr 12, 2010

#9

• Apr 12, 2010

• #9

advancing the initial timing will give you a little better throttle response and power down low. maybe 12-14 degrees. i run mine at 10*

 

faststang90

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Nov 5, 2007

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Apr 12, 2010

#10

• Apr 12, 2010

• #10

i ran 17 with 93. started good no problems. also ran autolite 13 plug before they changed the price on the plugs. a stock headed motor.

 

Mustanglvr2006

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Mar 31, 2010

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#11

• Apr 12, 2010

• #11

FriscoSteve said:

Dumb question, but what does detonation feel and/or sound like?

Click to expand...

In my experiences it has sounded like a pinging noise, if you advance your timing and it starts to ping under acceleration and you're running a low octane gas, you can try 91 or 93 octane, sometimes that will eliminate the pinging, if that does not work you will need to retard the timing a degree or two or as much as it takes to stop the ping. And like faststang90 mentioned, if its advanced too far, when you start the car, the motor will barely turn over.

wbrockstar said:

.also make sure you pull the spout connecter out while checking and adjusting.its beside the tfi module harness.after you set and plug it back in,it advances the total timing between another 10 to 20 degrees.

Click to expand...

Great point!! Forgot to mention that.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Apr 12, 2010

#12

• Apr 12, 2010

• #12

every car is going to be different.

With an AOD, you'll have more load on the engine so you may get detonation sooner.

Run 93 octane for a few tanks...and then advance the timing. Stock is 10 degrees. Advance 2 degrees at a time and if you get detonation, go back down 2 degrees.

 

wbrockstar

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Mar 31, 2010

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Nashville, Tn

Apr 12, 2010

#13

• Apr 12, 2010

• #13

detonation is when you hear the motor pinging or knocking.if you were running cheap gas,goin up a steep hill in too low of a gear,that can sometimes give you the sensation of what it feels or sounds like.its bad on an engine and can blow headgaskets,etc.