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Back to back to back dyno runs and a heat question

609 Views 9 Replies 5 Participants Last post by  Jman5000
Did 3 pulls today and A/F was a little lean till 2500, then right on (13 or so) all the way out to 5K, then it got richer.
Pull 2 got richer sooner, and 3 sooner than that.
Due to heat they shop told me...anything else it could be? HP and torque dropped too...but very little.
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Re: Back to back to back dyno runs and a heat question (chris86vw)

A minute or so. Basically enough time to plot the data, and start up again.
Re: Back to back to back dyno runs and a heat question (AxeAngel)

Wideband a/f.
There was a tall circular fan blowing on the front, and a small one on the IC.
They misted the IC between runs 1/2.
So more ideal conditions would be to run, wait 5 min (mist IC), and then go again?
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