Thread: These numbers look ok enough to start adding timing?

I havent had a chance to rip the wideband off my mustang yet to tune the gp but im hoping to get to it this weekend. How do these numbers look so far and do you think i can start adding a little timing? I dont know what the kr blip is and if i should be concerned about it. First scan was 1st gear and 2nd scan was 2nd gear. Thanks!

Device Time

Engine RPM(rpm)

Knock Retard(Deg.)

Timing Advance(°)

Throttle Position(Manifold)(%)

H2OS Sensor(mV)

56:33.4	979.75	0	33	0	286.4400024
56:34.3	2530.5	0	21	27.05882454	95.48000336
56:35.3	2997.5	0	12.5	43.92156982	898.3800049
56:36.3	3847.75	0	14	47.84313965	915.7399902
56:37.3	4314.5	0	12	100	920.0800171
56:38.3	5552.5	0	12	100	920.0800171
56:39.3	6120.75	0	10.5	100	924.4199829

Device Time	Engine RPM(rpm)	Knock Retard(Deg.)	Timing Advance(°)	Throttle Position(Manifold)(%)	H2OS Sensor(mV)
58:29.6	1610.5	0	28	3.92156863	772.5200195
58:30.6	3018.25	0.615234	-4	100	902.7199707
58:31.6	3904.75	0	12	100	907.0599976
58:32.6	4012	0	11.5	100	911.4000244
58:33.6	4272.5	0	11.5	100	902.7199707
58:34.6	4445.75	0	12	100	907.0599976
58:35.6	4838	0	12	100	911.4000244
58:36.6	5022.75	0	12	100	902.7199707
58:37.6	5201.5	0	12	100	902.7199707

Originally Posted by Fivefingerdeathpunch

That little blip is prolly when you first go into PE mode.

And yeah only 12* of timing at WOT is really low.


Just wondering, what mods do you have?

And IIRC stock WOT timing is around 15-16*

Yeah i know its a little low but I wanted to try and get the o2 in range before adding timing. I really need to get my wideband hooked up and go from there.
Mods are 3.4/FWI/104's/u bend delete/180* stat. I think i need to get headers and see what kind of timing I can run. Im going to add a little more fuel and start playing with the timing. Im going to get the wideband on this weekend and see where im at.

Thanks for all of the info. I bought the car about 2 months ago and the previous owner obviously didnt do things correctly. In fact he didnt even have the U bend installed. He gave it to me with the car so I went ahead and put it on myself. They couldnt get it to pass emissions so I got it for 800 bucks lol. The only reason the CEL was on is because it had a bad vacuum leak. Now im just trying to get the car where it should be. I even thought about trying to get a stock pulley for it and go from there. For now I can tune around it but i dont know how much timing i can run yet, I havent pushed it that far.

Originally Posted by TheOtherNick

Guess by your narrow band reading, you are a little lean, so once you get the wideband on add fuel if needed then add timing.

Still probably in the 10.x:1 afr range.

Ive been slowly adding timing and scanning. This is what I have so far. Do I just keep adding timing until it starts to show kr then take 1* out? It seems to be running pretty strong right now.

Engine RPM(rpm)	Knock Retard(Deg.)	Timing Advance(°)	Throttle Position(Manifold)(%)	H2OS Sensor(mV)	Speed (OBD)(mph)
2125.75	0	26.5	18.8235302	594.5800171	12.42742419
2685.5	0	26.5	21.56862831	108.5	15.53428024
4204.25	0	13	47.45098114	915.7399902	35.41815895
4617.25	0	16	100	933.0999756	36.03953016
5022.75	0	16.5	100	933.0999756	43.49598467
5672.25	0	15.5	100	937.4400024	49.70969677
4191	0	16	100	928.7600098	60.89437854
4343	0	16	100	928.7600098	65.86534822
4569.25	0	16.5	100	924.4199829	70.8363179
4785.25	0	16.5	100	924.4199829	75.18591636