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do you have some simulation data as to the downforce it creates?
does it fit the 718 GT4 (not RS) ?
Yes, we do, that's why we have the Aero balance table for all our aero parts.
__________________ - Alex Li
Racer, 2nd&3rd Place of GT4 Category@Porsche Sprint Challenge Asia 2018~2023/@Porsche Carrera Cup Asia 2021.
Product Manager& On-Track Tester@SilverRocket Racing, Asia's leading Porsche Race Team & Performance Kit Developer for Porsche GT4RS.
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Below are CFD result solely on front diveplane sets:
At 200 km/h (125 miles/h), SR CS Dive Plane can increase the front axle downforce by 17% in synergy with the extended front spoiler, side aero cover kit, and side covers.
At 200 km/h (125 miles/h), the SR PRO Dive Plane can increase the front axle downforce by 32% (15% more than the SR CS dive plane) in synergy with the extended lower side spoiler, side aero cover kit, and side covers.
I have not seen anything about what the aero balance is for the GT4 RS. The GT4 was stated to be 20/80 and the GT3 RS is stated to be a constant 30/70. So I have been assuming that it would be between 20/80 and 25/75 or roughly 22.5/77.5 figuring they would not deviate too far from the OEM 20/80 since AP says it is not a full blown track car. As the downforce jumps from about 330 for the GT4 up to a stated 488 for the 4RS, I think they would have had to move upwards at least a little for the front end on the 4RS.
20.0/80.0 = 98 / 380 pounds
22.5/77.5 = 110 / 378 pounds
25.0/75.0 = 122 / 366 pounds
So there is a difference of 24 pounds here depending how you want to look at it per my estimations. So 17% of 110 is about 19 pounds and 32% is about 35 pounds. I think you could also use two of the smaller canards on each side for more of an OEM look and still get 30+ extra pounds of downforce. Keep in mind that in doing this you will need to add about 3 times that to the rear of the car to keep it in balance.
Do we have a gurney flap for our 4RS wings on the horizon guys? A 12-15mm gurney could add another 15% to the back wing or about 45 pounds of downforce. The rear wing has about 300 pounds of downforce and the rear diffuser has a stated number of 81 pounds of downforce make up the full rear downforce numbers.
Last edited by lovetoturn; 04-15-2024 at 05:10 PM.
Below are CFD result solely on front diveplane sets:
At 200 km/h (125 miles/h), SR CS Dive Plane can increase the front axle downforce by 17% in synergy with the extended front spoiler, side aero cover kit, and side covers.
At 200 km/h (125 miles/h), the SR PRO Dive Plane can increase the front axle downforce by 32% (15% more than the SR CS dive plane) in synergy with the extended lower side spoiler, side aero cover kit, and side covers.
What exactly are the "side aero cover kit and side covers"? I know SR has 2 different dive plane sets and the splitter extensions. Are you talking about the OEM Aero on the front fenders?
Sorry for the confusion, SR is offering two types of diveplane to fine tune the front downforce:
CS Version Dive Plane is similar the one on Porsche GT4RS Clubsport race car, it increase 17% front downforce than OEM setup.
Pro Version Dive Plane is similar the one on 991 CUP , it produces 15% more than CS Dive planes.
Sorry for the confusion, SR is offering two types of diveplane to fine tune the front downforce:
CS Version Dive Plane is similar the one on Porsche GT4RS Clubsport race car, it increase 17% front downforce than OEM setup.
Pro Version Dive Plane is similar the one on 991 CUP , it produces 15% more than CS Dive planes.
Being slightly pedantic here, but it's
CS: 17% more front df over oem
PRO: 32% more front df over oem (not 15% more than the cs, which would imply 34.55% more than oem)
Being slightly pedantic here, but it's
CS: 17% more front df over oem
PRO: 32% more front df over oem (not 15% more than the cs, which would imply 34.55% more than oem)
You are right! I ignored the compound facts. Thank you for pointing it out.
Let me clarify it in correct way: CS Version Dive Plane is similar the one on Porsche GT4RS Clubsport race car, it increase 17% front downforce than OEM setup. Pro Version Dive Plane is similar the one on 991 CUP , it produces 32% more front downforce than OEM setup, which is 12.8% more than the CS Dive Plane.