DynoJet question

simms said:

Hoping Dave Weaver or some of you dynno wizards can help me here.

There is a dyno right up the road from me and I want to get a stock baseline on my car before I do any mods. The guy told me it was $84 for two passes. Is that enough to establish a good baseline, and how does that price compare?

He also said a little "bung" would have to be welded into my exhaust to read the a/f. Is he full of shit on that one?

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Uhhh - that 'bung' thing sounds like bullshit to me. They should be able to monitor exhaust w/out welding. Also, 84$ for 2 passes sounds kinda pricey too - you should get 3 for that.
(that's what's nice about a dyno day, you get more for your $$)

Also, re: the baseline - usually cars respond very differently depending on how much time is taken between runs. 2 passes might give you very very different figures. Personally, I would do at least 3 or 4 properly spaced runs to really give yourself a nice spectrum of #'s to look at and analyze.

Hope this helps, I'm sure others more experienced will chime in.

Clint