Thafuckwrongwitme 61 points62 points 2 years ago

Also in the USA your not allowed to sell a car with a 5 point harness because that would qualify it as a race car and not a road legal car. That’s why you see all those super cars that sell with a three point harness and usually give you the 5 point harness as an “accessory”

NorwegianCollusion 51 points52 points 2 years ago

Same more or less everywhere. Here, additionally: Toddlers MUST be in a 5 point harness, adults MUST NOT be in a 5 point harness. Quite ironic when people make street legal race cars, that they must drive with 3 point belts to an event and then must swap to 5 point for the race.

argumentinvalid 36 points37 points 2 years ago

5point harnesses will hold you upright in a rollover and break your neck. 3 point allows you to be pushed or lean to the side in a rollover. Toddlers are a different case because they aren't even close to as tall sitting up in the car.

ScienceBreather -3 points-2 points 2 years ago

Unless you have a roll bar (or drive a Tesla), in which case a 5 point harness is ideal.

DanknugzBlazeit420 8 points9 points 2 years ago

What makes a Tesla different?

Yeetstation4 -3 points-2 points 2 years ago

This is why race car drivers wear a neck brace, I guess.

argumentinvalid 5 points6 points 2 years ago

No, hans is more to keep your neck from snapping from sudden impact.

The roll bar/cage keeps you from getting smashed in a rollover with a 5pt harness.

UristMcHammer 17 points18 points 2 years ago

Do 5-point harnesses increase a car's performance? How fucking weird is that.

[deleted] 29 points30 points 2 years ago


ManyIdeasNoProgress 1 point2 points 2 years ago

It should be entirely possible to make a five point harness with the same technology as the three pointers, so if your description of the rules is accurate then it's a poorly written ruleset indeed.

SendMeSteamGamesPlz 16 points17 points 2 years ago

iirc a 5 point harness is only effective when paired with a helmet, otherwise the car can cause extreme head injuries in an accident

xxxdvgxxx 13 points14 points 2 years ago

The problem is that the 5 point harness straps you in too well. You're upper body can rotate in a 3 point, not a 5 point.

AlphaWizard 6 points7 points 2 years ago

It would then defeat the point of a 5 point harness. A 3 point allows your body to rotate in the event of a crash, and expel some of that forward momentum. A 5 point holds you exactly where you are, and will let your neck take all of the force. It also makes some common road situations more difficult, like leaning forward for visibility at an intersection

ScienceBreather -1 points0 points 2 years ago

There are 4 point harnesses that have one side that breaks away during a crash to protect against that.

PrinceHiltonMonsour 5 points6 points 2 years ago

If the fourth point breaks away during a crash what’s the purpose of the fourth point?

xxxdvgxxx 3 points4 points 2 years ago

They're safer when combined with the other safety equipment. They also keep you in the seat better so you don't have to focus on keeping yourself upright, but can just focus on driving the car.

AlphaWizard 2 points3 points 2 years ago

Yes, they do. By holding you into the seat, they allow you to drive and not worry about bracing yourself when cornering and braking. The amount of cornering force that modern cars have is incredible.

dartmaster666[S] 2 points3 points 2 years ago


Thafuckwrongwitme 0 points1 point 2 years ago

I think it was a /u/Doug-demuro video about the Porsche 911 GT2 but I might have heard it elsewhere.

dartmaster666[S] 2 points3 points 2 years ago

Just wondering because I can't find anything definitive anywhere. Some say yes, some say no. And usually it depends on the state and not the federal government to regulate motor vehicles.

Thafuckwrongwitme 0 points1 point 2 years ago

I’m only going off hear say so I might be wrong.

Doug-DeMuro 2 points3 points 2 years ago

When I worked for Porsche, what I was told is that you couldn't sell a car with a roll cage because then it wouldn't be road legal due to the fact that it's a race car. That was what I was told, time and time again, for why GT2/GT3 cars didn't have them. But, the BMW M4 GTS has a roll cage from the factory, so who knows.

A harness is also prohibited -- Ford told me at the new GT launch that they had to make it a "Ford Racing accessory" because it wasn't allowed to go with the car from new -- but again, who knows.

Thafuckwrongwitme 0 points1 point 2 years ago

Ah my bad