>He's a victim of the aerodynamic drag jewISHYGDDT
not on my watch
>>28698492you're obsessed with us while I get your tax dollars:)
>>28698525>someone makes a joke post>seething jew replieslol
>>28698492>antisemitism SHIGGY DIGGY
>>28698538>antisemitismI seriously hope you guys DO do this. The day of reckoning is coming. Once all the boomers die off then your ass is gas.
>>28698525Shalom my greatest ally
checks out
>>28698551So this is what the war was really about
>>28698492
>>28698586Toyota can't keep getting away with it - highly antisemetic
>>28698586The LS430 has a c/d of .25?This car gets more perfect every time
>>28698586What really baffles me is how the germoids managed to get a drag coefficient of 0.32 with this massive brick of a car
>>28698582why dont we have rear wheel skirts on modern cars, still looks cool today and adds aerodynamic too
>>28698614The official rationale is probably practicality reasons for the end use consumer, such as filling air in the tires, checking treads, changing tires, etc. I imagine the actual unstated reason is there are people in high places who view underconsumption of oil as a problem. Plus I do think the general public thinks it looks weird, so that doesn't help.
>>28698621well thats a bummer, 90% of modern ev would look more futuristic with them
>>28698600Japanese love aero. They tend not to produce tons of power so any gains in aero extends range a lot.>>28698606Aerodynamics is a strange discipline because it is whole of system. Even bricks are aerodynamic if you can control where the air goes.>>28698621>The official rationale is probably practicality reasons for the end use consumer, such as filling air in the tires, checking treads, changing tires, etc.That's actually the reason. Also as cars get older, the skirts fall off. Similar reason for why we don't have moon disc's and rally style aero rims for all cars. Consumers may not like it even if it is practical.
>>28698614>>28698621Because they are a half measureIf you can find it, some guy made sectioned skirts, and covered the entire car from front to back, for a somewhat significant drag coefficient. Buy since the body kit is called a "fender skirt"; finding it on the Internet is a pain.
>>28698492Whos calling..
>>28698630>>28698606>Aerodynamics is a strange discipline because it is whole of system. Even bricks are aerodynamic if you can control where the air goes.pls consult my highly technical diagram for my understanding of the e32s aero
But what about downforce
smoothing through air like butter
>>28698539>Once all the boomers dieWhy wait goy? You scared of a geriatric old man? KEK chuds are pathetic.
>>286986472d profile isn't enough. What about the air that goes around the side of the car? Any changes between profile can cause airflow to tumble too. Wheel well size affects side aero, as does rim profile. That's highly active and the fastest moving aero part of a car.
>just found out the Bugatti Chiron has a worse drag coefficient than a 1955 Tatra T603wtf is going on here
>>28698621>the general public thinks it looks weirdThere's precedent for this, the original "whale" version of the 91-96 B body sedan only lasted 2 model years before they changed to normal round rear wheel arches because everyone pissed and moaned about it. (and then they changed the rear quarter panel again in 95 so they all had the 94 Impala SS hoffmeister kink quarter window). They never changed the wagon, though.
>>28698675Look man, I'm not about to learn CFD for this. I just wanted to address the brickyness of the front bumper. You can see how the skirts are shaped to direct air around the rear wheel though.
>>28698719That's the barrier to entry as far as I know, otherwise you're stuck to teardrops and an intuitive sense of aerodynamics, which oftentimes is contradictory.
this was a nissan concept car from the early 90s, cD of .2
>>28698722Anyone ever build a wind tunnel in their garage?
>>28698680The 1955 design is one of those>we draw it during the late 1930s>but then WW2 happened >And then it got put on backlog because WW2 and the rebuilding effort took all our time The late 1930s was a time where Aero was hype, that is all.
>>28698647The front is an interesting case because air moves through the grill and such and so it doesn't form as much of a high pressure area as you might expect.
>>28698621>people who view underconsumption of oil as a problemveiled Teslashill post
>>28698606yhe main contributors to drag is the undercarriage and wheel wells of the car. If you can keep the air from flowing under the car and getting trapped in the wheel wells, that minimises the bulk of the drag you'll experience. presumably, the Bimmer has a really good front air dam design.
>>28698637I've drawn a blank too. Here's a bad photoshop of what I want to do to a Mégane CC.
>>28699081Also a Brera
>>28698637Pretty sure you meant calf measure.
>>28698492The car that you're saying has less drag is literally worse aerodynamically because it still creates a low pressure zone behind the car. It's literally less draggy going backwards and this is well understood, you sperg.
>>28698586I was surprised when I found out my Lexus has has a drag coefficient of 0.28.Explains why a 308hp car has no issues hitting 120mph+I think they did this because the fuel economy was so poor on this car. it was likely the only way to get decent highway gas mileage
>>28699229>Explains why a 308hp car has no issues hitting 120mph+200hp cars can do 140mph Anon. With 300+ hp you should be able to do over 150mph.
>>28698680The Chiron needs to cool an engine producing 1500BHP at some 10%-15% thermal efficiency. You figure it out retard.
>>28699103>0.25
>>28699258The engine is water cooled, not air cooled. It doesn't affect the aerodynamics.
I found this fantastic RX-7 with wheel covers over both the rear and front wheel arches. The front ones are hinged to allow for the normal amount of steering lock.https://www.youtube.com/watch?v=qbSDIWw-zxQ
>>28698492Aero? never heard of him
>>28699248With the speed-limiter removed, a lot of cars will top out just before 130mph stock
>>28699248I'm not talking about top speed.I'm talking about how long it takes to get to 120mph.I've had other cars with similar power struggle to get past 100mph due to aerodynamics.But my is350 effortlessly gets there.Meanwhile my track car with 435 horsepower starts to struggle past 120mph and only does 149mph down the main straight.It's way more draggy
>>28698614they don't end up improving aerodynamics as much as you think.they're a burden for maintenance access, obviously, but they also hinder cooling on brakes.
>>28698683i love caprice so much
>>28698586pic related has a Cd of 0.189
>>28698641Ghostbusters!
>>28699278the shape of the air intakes and ducts that feed fresh air to the radiators affects the drag pretty significantlyeverything has to be measured well, tightly engineered and calculated to ensure no excess air slips into the engine bay as that's a fairly big contributor to drag
ALL MOCKERY OF JEWS AND THEIR ONE GOD SHALL BE KEPT TO AN APPROPRIATE MINIMUM
>>28698606W124 sedans have a coefficent of 0,29, base models with narrow tires event get 0,28
>>28699660wtf GM used to be based?
>>28699844we could have lived in a based future with toilet seashells
>>28699776And its not a real production vehicle eitherIf the Aptera actually releases, AND isn't stuck to being sold in one region of the US... it would be the first low CD vehicle to the market. But there is a good chance its not going to release.
reminder that some guy in his backyard roughly doubled the MPG of an early 90s Honda Civic with aluminum, lexan, and coroplast.
some years back renault's trucks division released some concepts that had these interesting wheel covers. they are attached to the wheel, not a skirt, so obviously no issues with turning radius.
>>28700068*with a box of scraps
>>28698680>>28699258>>28699278>>28699782Downforce = drag you ding dongs
>>28700419Wrong
>>28700430No
>>28699278bruh...its not like radiators benefit from airflow or anything.>fun fact, the use of ethylene glycol allows radiators to be 30 % smaller than they otherwise would be
>>28700454You are quite literally wrong. Flat bottoms, diffusers, spoilers. When well designed these do not increase drag, in fact they reduce it.
>>28700494>Flat bottoms, diffusers, spoilers.Correct, these are primarily drag reduction devices. They also reduce the amount of lift your car produces. The things you use to add downforce (splitters, canards, wings) also add drag.
>>28700510>reduce the amount of liftIf only there was a word for this downward force that is being applied to the vehicle to reduce the lift.You fucking window licking, pencil eating, corner hitting, helmet wearing, short bus riding moron.
>>28700510A flat bottom and a diffuser add significant amounts of downforce.
>>28700522>>28700525It's not adding downforce. It's reducing lift. They are similar, but not the same thing.
>>28700530Literally incorrect dude, it's doing the exact same thing as a wing with the entire shape of the car. In many cases a properly designed underbody can produce more downforce than a wing.
>>28700530
Don't even think about it.
>>28699808Aren't you supposed to be bothering a doctor in Cornwall?
>>28698525Aside from jail time or death penalty give me one good reason why I shouldn't shoot you or anyone like you.
>>28698492Since this thread is shit, I'll dump some wisdom to help you fellows along. First off, drag.Drag force=atmospheric pressure x frontal surface area x coefficient of drag x velocity^2.Double any one factor, double the drag. Double the speed, quadruple the drag.This is why aero optimization is important, a 5% reduction in overall drag at 100kph means it's a 20% reduction 200kph, and an 40% reduction at 300kph. So how can we squeeze out every percent?If we take the standard car, the fractions of drag is as followsShape/configuration - 33%Engine cooling - 33%Underbody - 20%Wing mirrors 5%Tires/flaps 10%Antennas, handles, and other extraneous bits <5%We can't do much about the shape of our car, or the things like door handles and antennas, but we can do something about the cooling system and the underbody. Firstly, cooling. Your engines cooling system is designed to keep the engine cool in death valley, at noon, fully loaded with kids and the dog, towing a trailer uphill, with the AC on. All this to say that you probably don't need your maximum cooling capacity, particularly in the winter. If you're not demanding maximum output, or or even half output all the time, it may be worthwhile to cover your rad air inlets. As a result, this will also reduce the underbody turbulence as the rad air typically has two places to escape, the windshield cowl, and the wheel openings. An underbody tray can be made cheaply from coroplast, which can prevent air moving under the front bumper, and into the engine bay, and keep it nice and streamlined until about halfway down the underside of the car. You can go all the way to the tail, but it's not as much return on your investment. These two things on their own would cost less than 75 Canadian pesos to implement. Without CAD or a wind tunnel, it's hard to quantify the actual gains, but I would not be surprised if the above squeezed 5-10% a minimum.
>>28699229>no issues hitting 120mph+my shitbox with 95hp can do that
>>28698586Holy shit, impressive numbers from the LS and CT Lexus. I thought the maxchink grill on the latest LS was a drag magnet
>>28700847Nice numbers you pulled out of your ass. What else you hot in there?
>>28698683B-body my beloved
>>28698727Only after eating Mexican food
>>28701448And my car can do it in 1/3 the time and still keep pulling because the drag is low.Meanwhile I've been in track cars with huge wings, splitters and canards that are draggy as fuck.A 92 Miata I drove would do around 110mph on the straight because the Aero was so damn bad.Was a rocketship in the S's and tight corners though.Better cornering speed than the GT3 RS.
>>28700837Because I'm G-d's chosen people and you'll boil in excrement with your Jesus Christ if you harm me
>>28700847>If you're not demanding maximum output, or or even half output all the time, it may be worthwhile to cover your rad air inlets.People do this all the time in northern Yurop. Not really for aero though, but because the inlets in modern cars are ridiculously excessive for the environment and how efficient regulation-compliant engines are now.With all that freezing air blasting into the engine bay, the engine may struggle to stay at its intended operating temperature even with the radiator fan and cooling flow mostly stopped. Temps well below freezing aren't really good for lead-acid batteries, either.
>>28700619
>>28700847Some more wisdom I forgot to mention.Drive your tires until they have no tread left, this reduces rolling resistance by 10-15%. A fuel economy improvement of 1-2% can be expected.
