Slight smoke while on dyno. Normal?

cvince · 10-20-2022, 01:25 AM

I just took the car to the dyno the other day and it pulled 529whp. Mustang dyno with dynojet conversion numbers.

While rewatching the footage I noticed that there's a very faint amount of smoke coming out of the exhaust towards the top of the pull. It appears some timing was pulled as well for this particular pull (torque curve is not as perfectly smooth as the first pull).

Just wondering if this is normal, or something to be concerned about:

Car is fairly high mileage (147,000km) but I've changed the oil religiously and plugs were done only 20,000km ago.

Next up for me is coils and injectors (injectors have never been changed).

M5Rick · 10-21-2022, 09:01 AM

The faint smoke is nothing to be worried about.

10-20-2022, 01:25 AM	#1
cvince New Member 3 Rep 13 Posts Drives: F10 M5 Join Date: May 2022 Location: Vancouver, BC. Canada iTrader: (0)	Slight smoke while on dyno. Normal? I just took the car to the dyno the other day and it pulled 529whp. Mustang dyno with dynojet conversion numbers. While rewatching the footage I noticed that there's a very faint amount of smoke coming out of the exhaust towards the top of the pull. It appears some timing was pulled as well for this particular pull (torque curve is not as perfectly smooth as the first pull). Just wondering if this is normal, or something to be concerned about: Car is fairly high mileage (147,000km) but I've changed the oil religiously and plugs were done only 20,000km ago. Next up for me is coils and injectors (injectors have never been changed).
	Appreciate 1 M5Rick60013.50 Tweet Quote

10-21-2022, 09:01 AM	#2
M5Rick General 60014 Rep 19,524 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	The faint smoke is nothing to be worried about.
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