Diffuser Lift data for F1 1990 cars?

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Re: Diffuser Lift data for F1 1990 cars?

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Testdrive wrote:
02 Apr 2021, 03:53
jjn9128 wrote:
31 Mar 2021, 17:55
Testdrive wrote:
31 Mar 2021, 08:08
I guess the main difference between 1990's, 1989 with the lower L/D of 2.63, 2.85, compared 2.95 in 1991, 1993, and early 1994 was the less efficient floor diffuser.
There were all sorts of changes through the early 90s, the rear wing was moved, the front wing and its endplates were moved, the tyres and track were made smaller in 1994. Mainly the arrival and banning of active suspension was a biggy. Cars got what would be very peaky aeromaps because the suspension controlled the attitude.
Whats interesting, Tyrell came back with with 2.97 Lift to Drag for 1991. They had a wider track compare to 1994, 1993
plus bigger tyres. Yet managed pretty good ratio. Looking at the car, the body seemed light, low side pods probably contributed it.

https://upload.wikimedia.org/wikipedia/ ... _Japan.jpg
That looks like an Indycar. Not a terrible look, although a sub-par car.