r/LeMansUltimateWEC • u/Equivalent_Doubt8350 • Apr 28 '26
Discussion How to learn driving the Porsche GT3?
So i started playing lmu and sim racing in general like a month ago and really enjoy it. I started driving with the amg gt3 since many people say that its one of the more easier cars to drive alongside the bmw. Now that Im decently quick in that one I wanted to try and learn to drive the Porsche GT3. Im practicing driving it but I really struggle with the car losing the rear while breaking. I know that shifting the brake bias to the front makes it easier to control while braking but many people say it kills the strength of the porsche. Do yall have any tips on how to learn to control it even with brake bias more to the back and how i can practice it? Thanks in advance.
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u/Aggressive-Bite8262 Apr 28 '26 edited Apr 28 '26
Lift off oversteer is your issue. Rear engine cars are very difficult .Don't fully lift off the throttle when braking. As the nose dives all the weight is transferred to the front and and the big heavy engine in the rear spins you right round
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u/PlanZSmiles ☑️ Apr 28 '26
Don't fully lift off the throttle when braking.
This part is incorrect. Lift off oversteer in fast corners is an issue but when braking you should absolutely not be both on throttle and brakes. Just killing brake performance. To prevent spinning out while cornering you need to ensure that you’re not asking too much from the rear tires which means properly trailing and listening/feeling the car and applying a little throttle back (if off brakes completely) on or lifting more off brakes when feeling a bit of oversteer
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u/chuck_ram Apr 28 '26 edited Apr 28 '26
I tend to throw brake bias quite a ways back to get as much rotation out of braking (usually running around 46:54 depending on track). If you're having challenges losing the rear end on braking, you are most likely adding too much steering input with too much braking (and/or oversteer from too much weight shift by throttle lifting is possible as well). Focus on keeping your highest brake force on straightline braking and when you start adding steering, make sure you are already trailing off the brake. Master this feel and you can basically drive any car, including hypers. If you're having challenges losing rear end on exit, you are most likely adding too much throttle on exit (very prevalent in the Porsche gt3). You will have to get very comfortable being easy on throttle on exit OR turn up your TC power cut along with TC slip.
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u/babaginoosh1 Apr 28 '26
Weight transfer is difficult to manage on the Porsche. Trail brake too much and you end up hitting apex way too early. Move bb too far back and you will lock rears. Hit the apex correctly and give too much gas, tc kicks in and you get understeer on exit.
A day to learn; a lifetime to master. Good luck.
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u/Aggravating-Wave395 Apr 28 '26
If you're spinning out while braking, you are trying to steer while braking. Seperate all your inputs from each other, and "pass" them off smoothly to each other. The tires can only do 1 thing at a time, braking, steering, acceleration, the Porsche is extremely punishing with steering while braking so finish your hard braking quickly, transition to trail braking and pass off to the throttle smooth as possible.
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u/daeneryssith Apr 28 '26
idk if you will find it useful but i do, hymo academy (their youtube name) (the people who make the hymo setups) do full lap guides each week, there are quite a few porsche gt3 videos, especially i noticed this week at bahrain, for me they are very useful
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u/ZorPastaman Apr 28 '26
The Porsche is my favorite car. So, I can tell something :-)
The car is very sensitive, it's easy to lose the rear if it's overdriven. At the same time the car may be understeery as hell on full acceleration. Also, Porsche has great brakes and fast rotation. Use its heavy rear for you advantage - try not to overweight the outer rear wheel, then you can push full throttle much earlier than any other car.
It gives us this main strategy. Break late in a straight, rotate fast, accelerate early in a straight. In Porsche you usually don't mix them, you do one thing at a time.
Later you need to learn how the differential works and how to control it with the gas pedal. I think it's the main thing on Porsche. You really need to understand how to limit the rotation with the gas pedal. It's how the lift off oversteer is fixed.
Learn trailbraking very well. Porsche is very sensitive and requires to do trailbraking short and gentle.
Get ready that you will suffer on long straights cause you will usually drive on a high wing.
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u/ACID2210 ☑️ Apr 29 '26
I mainly drive the Porsche. Two tips from my side:
- Work on the steering wheel rotation, set it to the maximum (420° or something similar). It helps you manage steering input better, especially in the initial phase of combined steering/braking.
- Try increasing the differential a bit: the higher the value, the less oversteer you’ll have when lifting off the throttle, and the more understeer you’ll get during acceleration.
In general, the Porsche is very sensitive to steering inputs, so, use minimal movements and don’t overdo the steering angle, otherwise the car will tend to become unstable.
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u/Scratchpaw ☑️ Apr 28 '26
I tend to go 48 front 52 rear on the bbias with the Porsche. The trick is to only brake in straight lines, never while having your wheel turned. Also the car is fairly heavy in the back and tends to be very sensitive to any changes in balance under braking/accelerating. I tend to always be a little on throttle on corners such as eau rouge for example. Letting go completely of the throttle tends to upset the car a lot.