What causes the popping sound in the exhaust of some high performance automobiles?
High-performance vehicles are dumping a lot of fuel into the engine to make all that power. When the driver quickly lets off the throttle the airflow is affected faster than the fuel flow, so for a moment, there’s still a lot more fuel than air going to the engine (i.e., the air-fuel mixture is very “rich”). This isn’t ideal for combustion and some fuel is left unburned because there’s insufficient air to get a good burn and that excess is passed into the exhaust manifold. It’s still extremely hot though and if the exhaust is free-flowing enough (another factor that high-performance vehicles are likely to have) then it will hit air while still hot enough to ignite and it will ‘pop’.Modern cars generally don’t do it unless they’re modified for 2 reasons:1> Direct-injection fuel systems react to fuel delivery changes just as fast as air changes, so you’re not running too terribly rich at any point, even on deceleration.2> Emissions control systems generally put enough barriers into the mix that by the time exhaust reaches a point where it finds more clean air to help it ignite, it’s cool enough not to do it. For the most part, if you have catalytic converters on your car (and any unmodified vehicle will), unburnt fuel will have a hard time making it beyond this point because the heat inside the catalytic converter will cause the fuel to ignite there (and drastically limit its life).
How much does a F1 car cost?
Cost of Various Parts of an F-1 Car With Comparisons: (Bonus Facts at the End)Front Wing - $ 2,00,000 - A brand new Rolls RoyceUnder-Tray - $ 80,000 - A brand new Land Rover EvoqueGear-Box - $ 1 million - A luxurious apartment in Manhattan, New YorkSteering Wheel - $ 50,000 - Mercedec BenzThe Cockpit - $ 1 million - 5 Rolls RoyceThe Engine - $ 5 million - 11 Lamborghini AventadorsBrakes - $ 2,00,000 - A Bentley (Have to replace after every race)Rear Wing - $ 1,50,000 - Twenty Thousand tubs of SneakersExhaust - $ 2,20,000 - A FerrariEdit: Tyres: $3,000 for a set. - That’s 15 sets of regular Tyres. And for F-1, they don’t even last for 1 race.Total - $ 8 Millions Dollars - An Oil Field in Mexico.Bonus Facts for Reading till nowOn an average, the driver changes the gears 3000–3500 times in a single race.F1 drivers lose 3 KG of weight in an average race due to G-Forces and heat. The G-Force experienced by a F1 driver when he hits his brakes is equivalent to driving a car through a brick wall.A modern F1 engine consumes about 450 litres of air every second with race fuel consumption around 75 litre per 100 km.The drivers can lose approximate 2 to 3 litres of body water.The number 13 is never assigned to a F1 driver. The only two times in F1 history that No. 13 was assigned to a driver was in qualifiers way back in 1963 and 1976. While one of these drivers was Moises Solana, the other one happened to be Divina Galica--one of only five women to compete in the sport. Edit: Pastor Maldonado also had Car 13.
What are the types of suspension systems in a vehicle?
Well, the type of suspension to be used depends on the type of vehicle. Broadly, there are 2 types of suspension systems:-a) Rigid Axle Suspension - Used for heavy duty vehicles. Construction is simple. Comfort is not great due to low sprung & high unsprung weight. Used in Truck’s Front and rear axle both & in Car’s Rear Suspension ( Mostly Leaf Spring rear suspension ).Solid Axle leaf spring suspensionSolid Axle Coil spring SuspensionHave a disadvantage that when the axle tilts, the wheel no longer remain vertical and uneven tyre wear occurs or even toppling can occur. You have seen this when a truck takes a turn at high speed.b) Independent Suspension - It is any arrangement in which wheels are connected to the chassis such that the rise & full of one wheel do not affect the other. These are almost used in every cars Front Axle, as the tyres are always normal to the ground & in Offroad vehicles or fast speed vehicles ( such as Supra & Baja events). Nice Drive is there in this case, due to less unsprung weight and better road holding while cornering or braking. It is more complicated as steering system is also there adding one more D.O.F. It is of following types :-a) Wishbone arm system - Most popular system using coil springs, A- arms, Telescopic Dampers, etc. It is of these types Double Wishbone system & Single wishbone ( also called Macpherson Strut) .Double Wishbone SuspensionMacphrson Suspensionb) Trailing link system - These systems have parallel linkages lying parallel to frame side members. Used a horizontal coil spring.Trailing Arm suspensionc) Sliding pillar Type - Not used nowadays.Sliding Pillar type
Question about a book?
What are some items that are meaning to the story "The Adventures of Huckleberry Finn". I have to find four more to complete my assignment and can't think of anything I don't already have written down.
Can you use a 775 motor to move a go kart?
have you seen these?designed for high speeds of 10km/h.heres their motor.its about the size of a starter motor for a car. they are big. for 10km/h!have you seen these?well, the motor you have shown is what they used to use before brushless motors became the new standard.so, sure, you can use your 775 brushed motor in a go cart.if you dont mind a top speed of about 2km/h.you need something like this, minimum.1000w, or about 1 1/4 hp.and batteries…start at about $500 for a decent motor, speed controller and entry level battery.and keep going up if you want a speed of more than 25km/h, with a runtime of more than five minutes.better yet, a motor that WILL work…notice that its ever so slightly LARGER?here you are. US$430 for the motor ALONE.TomCat TC-G-10925-KV160(G100CC) for 100CC Gas airplane TC-G-10925-KV160 603983731321 | eBayequivalent to “100cc”. being electric, thats a rather imprecise terminology. is that a 100cc industrial fourstroke? a 100cc rotax racing two stroke with tuned pipe and reed valves? electric means its power is limited by how much current it can withstand before melting, rpm it can withstand before flying apart, and voltage it can take before insulation starts breaking down. say, 7500 watts… thats a REALLY BIG battery you need.which is about the minimum for a gocart, if you want something thats actually fun. if it cant do 60km+, its not fun. if it cant get sideways or spin the wheels…its not fun.or you can just settle for one of these…careful! it sure is scary, doing 5 km/h….