GT4 Aero

[gtsralph]

When the stock wing is not enough...



Verus Engineering are developing a range of aero parts for the GT4, with dive planes available now and rear wing and splitter to come. The link below from Verus describes and illustrates aero effects and describes their thinking and design processes.


https://rennlist.com/forums/gt4/1103179-verus-engi...

Added link https://www.verus-engineering.com

Edited by gtsralph on Wednesday 17th October 19:33

[gtsralph]

isaldiri said:

But I'm not talking about lift am I? Merely that the recent empashsis on road cars supposedly producing huge amounts of downforce is imo total nonsense.

Certainly with Ferrari where SportAuto no longer tests them in the Mercedes wind tunnel, just repeating Ferrari's claims. The Porsche, well Mr GT3's claims are not matched by SportAuto tests. Generally diffusers have little to no effect but splitters and wings will.

Faux aero bits are the similar to using carbon fibre, a light weight stronger material as trinket jewellery. However using carbon in body structure and having effective aero provide useful benefits.

[gtsralph]

Yellow491 said:

But look at the rear window.

I assume the rear perspex screen is depressed due to the effect of a high air pressure area, i.e. aero effect?

[gtsralph]

SportAuto test of the 991.2 GT3 (with wing) reported (English courtesy Chrome translate)

"Due to the new aerodynamics of the 991.2 GT3 has more downforce at the rear than the 991 GT3. In the delivery status (rear wing position 5 degrees), the output is 19 at the front and 42 kg at the rear. 

In the supertest was driven with the performance position of the rear wing (9 degrees). Result: more downforce.
Front axle at 200 km / h: 16 kg downforce
Rear axle at 200 km / h: 53 kg downforce"

The tests are run in a Mercedes moving floor wind tunnel at 200 kph

[gtsralph]

anonymous said:

[redacted]

Ah, I just assumed lower pressure would suck and higher would push

[gtsralph]

Any ideas what the small vertical slats under the car might be for? Too small to be effective, too regular to be loose bits hanging off?