Dyno run

[Helios]

I talked to the guy that ran the dyno and he said he turned advance track off.... So Lund Sr said datalog it and send it to them. So thats what I'll do.

Turning it off is not enough. Have to unplug the connector at the airbox when your doing dyno, most mustang operator know this

Sponsored

 

[jojo4711]

Turning it off is not enough. Have to unplug the connector at the airbox when your doing dyno, most mustang operator know this

I am more interested in usable power. Im not going to unhook anything permanently just to gain some power. Ill never be able to use it on the street anyway.

 

[Helios]

I am more interested in usable power. Im not going to unhook anything permanently just to gain some power. Ill never be able to use it on the street anyway.

Thats not what im saying, its only for dyno tuning and reading. You plug it back when everything is done

How can he get good readings when electronics of the car is acting up

 

[Helios]

If you want a clean power and torque curve. With proper timing you don't want your safety to modify numbers while your tuning parameters.

 

[jojo4711]

Yes I know how to disable in the car. The guy that made the run said he turned it off. Maybe he didnt, maybe he did. Next time I go, I will make sure its off.

 

[Flyhalf]

I Confirm 10sec advance trac off is same thing.
For reference my 18 on 96oct tune and JLT and borla atak is at 465.
I think is the dyno reading low. Confirmed by the oem 18 reading at 406( most of mustang seems to be arou d 412-415 stock.

Side question what engine oil u use?

 

[dn1984]

i just noticed your afr is extremely high for E85 (looks like it's on gas). i bet somebody fat fingered something. seeing this now, i would not be driving the car on this tune. i know this may be a dumb question...but you actually had 100% E85 during that dyno run right?

 

[jojo4711]

i just noticed your afr is extremely high for E85 (looks like it's on gas). i bet somebody fat fingered something. seeing this now, i would not be driving the car on this tune. i know this may be a dumb question...but you actually had 100% E85 during that dyno run right?

Yes I tested it the night before it went into the tank at E87

 

[PaddyPrix]

Assuming:
-that chart is yours for that run, no old or wrong chart loaded by mistake
-you are running e85, or were doing so for that run
-and at that run, had your full e85 tune (not flex) loaded

Am I wrong in thinking that you're in a real danger zone? Assuming those indicators are accurate?

Anyhow, I run e85, and took a few IG videos of me doing some runs with the in-car AFR monitoring, and I'm generally 9.1-9.2 idle, and stay low-mid 8's when under load. Gasoline AFR stoich is 14.7:1, compared to e85, which is 9.85:1. It's not uncommon to have people tune your AFR to 12-13 when under heavy load for safety reasons, because you'd rather have too much fuel than not enough, running 16-17 at high rpm and power would knock/ping/pre-detonate and enough of that could turn quickly into a rather very expensive dyno run to say the least.

Likewise, in my e85 tune, 9.85 is the target, and I'm running low-mid 8's to err on the side of caution, as a road race car, I'm going to be at high RPM as often as I can.

If you really were flat on at 12.5 as indicated by the grey dashed line in the chart, it might be at least checking out your in-car track app gauges on the next run to see what's going on, because if you were running 50% higher than where you should be, that'd be equivalent of like what, an AFR over 20 on pump gas? I mean, I'll admit when somebody has got bigger balls than me, but playing Russian Roulette with a loaded Glock seems like a really bad idea.

My .02 anyhow. Only thing that might happen is that the WinPEP software could be super old and have some bug/glitch where the Air/Fuel R numbers are a fixed picture/gauge or background picture. If it was something that auto scaled, it should have scaled to the numbers that it was recording/reporting.

 

[Jmtoast]

Yes I know how to disable in the car. The guy that made the run said he turned it off. Maybe he didnt, maybe he did. Next time I go, I will make sure its off.

Unfortunately you can't ever really turn it off using the button. Even with it completely of I still have the nannies engage as do others. You have to pull the plug. Most mustang tuner shops will do that before running the dyno but if that shop doesn't know they wouldn't.

 

[jojo4711]

Assuming:
-that chart is yours for that run, no old or wrong chart loaded by mistake
-you are running e85, or were doing so for that run
-and at that run, had your full e85 tune (not flex) loaded

Am I wrong in thinking that you're in a real danger zone? Assuming those indicators are accurate?

Anyhow, I run e85, and took a few IG videos of me doing some runs with the in-car AFR monitoring, and I'm generally 9.1-9.2 idle, and stay low-mid 8's when under load. Gasoline AFR stoich is 14.7:1, compared to e85, which is 9.85:1. It's not uncommon to have people tune your AFR to 12-13 when under heavy load for safety reasons, because you'd rather have too much fuel than not enough, running 16-17 at high rpm and power would knock/ping/pre-detonate and enough of that could turn quickly into a rather very expensive dyno run to say the least.

Likewise, in my e85 tune, 9.85 is the target, and I'm running low-mid 8's to err on the side of caution, as a road race car, I'm going to be at high RPM as often as I can.

If you really were flat on at 12.5 as indicated by the grey dashed line in the chart, it might be at least checking out your in-car track app gauges on the next run to see what's going on, because if you were running 50% higher than where you should be, that'd be equivalent of like what, an AFR over 20 on pump gas? I mean, I'll admit when somebody has got bigger balls than me, but playing Russian Roulette with a loaded Glock seems like a really bad idea.

My .02 anyhow. Only thing that might happen is that the WinPEP software could be super old and have some bug/glitch where the Air/Fuel R numbers are a fixed picture/gauge or background picture. If it was something that auto scaled, it should have scaled to the numbers that it was recording/reporting.

So what your saying is that my AFR is too high? I sent the graph to Lund and he seemed to think its fine, no issues. Should I point out my AFR in case he missed it somehow?

 

[ahl395]

Also most tuner decline to do a 7th gear 1:1 to redline as it will take the car to 260 km/h on the dyno and is dangerous. Imagine how catastrophic if the straps are not holding well and the car take off. Not sure you can recognize him anymore after hitting in the wall without seatbelt on

260km/h (161mph) is not dangerous lol its completely normal for a dyno run. Almost all dynos are rated to do 321km/h (200mph)

 

[jojo4711]

Figured some of y’all would get a kick out of this:

Sponsored