dyno question

A friend and me were talkin and seems it would be a waste of time to Dyno a engine in 95* weather and very high humidity. because you will have to completely change the tune when the weather is normal. Seems it would be better to wait until the heat/humidity drops a bit.jmo

DanH wrote:dyno test air pans and scoop's , just look at your ET card .

I did this very thing Sat. night, I made my first pass without the air pan, shifted at 6200, ran 6.134, next pass put pan on car, same shift point, 6.101, next pass, moved shift point to 6500, went 6.088, then elimanations started, I dialed 6.08, went 6.085, left same dial on, went 6.082, next pass, dialed 6.07, went 6.081, left 6.07 on window, went 6.080, that was the end, had a -.005 light, but was a good test and tune night, temp was about 88, humidy was about 70%, barometric pressure was around 29.25, end of story.

so how you likin that APD carb?

Carbs fine, I just need someone to help me with the jetting, and air jets, I believe there is more to be had, if I can figure it out.

342g wrote:Carbs fine, I just need someone to help me with the jetting, and air jets, I believe there is more to be had, if I can figure it out.

You need to know the "lean/rich" fuel ratio throughout the run, otherwise you are just shooting in the dark.
You'll get there but, it'll take 10 times longer; maybe 20 times longer.

342g wrote:Carbs fine, I just need someone to help me with the jetting, and air jets, I believe there is more to be had, if I can figure it out.

drag it down here............I got lots of alky tunin' stuff.

Wow, thats a fur piece, what about we mee in St. LOUIE.

Wait until Norwalk Harold,there will be plenty of Alcoholic's there to get it right.