sorry I dont have any measurements, hence the rather flippant reply. So many other factors tend to make bigger impacts on lap times that unless you are doing a lot of testing and running longer races I really dont take a lot of notice. By Sunday afternoon I am lucky if I have got gear ratios right let alone anything else!
Interestingly at Eastern Creek one of the better drivers in historics with a BT30 was nearly 2 seconds quicker with out any wings at all!
Andrew
Andrew
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