Quote:
Originally Posted by Vettezuki
The problem with dyno pulls to check subtle things is that you really need to be on the same dyno under similar atmospheric conditions from your baseline. What you perceive as a difference may only really be 10HP on the top end, and dynos can easily be that far off from one another. Another way to check is if you have a base of timeslips from a given track that is consistent AND you are a consistent diver (i.e., not Sean). If your mph is off by more than 2mph on average, you are definitely down on power.
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If I can find a dyno where I can do pulls frequently and cheap, I would do pulls frequently just to check little things. Reason I ask, this weekend I ran a cobra and an evo and the runs were a lot closer than I expected. Which could mean a couple of things. First that my car is making a lot less power or that both the other cars were BS'ing about their mods.....I know I'm making less power but it would have to be substantial for the runs to have been that close.