Does having a supercharger use more fuel?
(2012-02-05 15:20:08) 1. Says: Same with having a turbocharger and which would be better to have if you could only have one?2. Says: to answer your question, yes, a forced introduction system (turbo/superchargers) suck more volume of air, to balance more amount or air, you need the same amount of fuel or you'll be running either rich or lean.Turbocharger-The good part about having a turbo is you have better high end performance, over all better acceleration, and its completely mechanical without computer systems. Easier to control boost too. The down fall is not only do you need the turbo, you need a turbo down-pipe to the exhaust, turbo exhaust headers, BOV and Waste gate, boost regulator/controller. You also have turbo lag which sucks at off the line acceleration cuz you need the boost to build up first. You got to make sure you also have a good flow exhaust system
Supercharger-just like the same, but its mechanically ran instead of exhaust ran. runs off a pulley to the harmonic balancer spinning the turbines. still you need a boost sensor/controllers/regulators. Good thing is its great for low end power off the line, unlike the turbo, you don't have lag or need to build boost. Depending if you have a V8, you have the supercharger directly on top of the intake system meaning the air is injected faster in without going thru pipes and taking longer to boost. downfall is, its big and heavy, your gonna need new pulleys. not the best for high end power.
Centrifugal supercharger are a turbo that is spun by a pulley off yours harmonic balancer. You have the same set up at a turbocharger, piping, intercooler, BOV/waste gate, etc but you don't need a exhaust manifold to fit it which is good. it performances just like the supercharger so good low end power. plus lighter and smaller, i'd prefer this option!!!!3. Says: They both will use more fuel. Here is the difference>
Turbocharger> Only 'on' when you get on the gas. Power increase will be felt only when turbo is spinning. Fuel consumption will only increase when the turbo is boosting, so it's more economical.
Supercharger> Belt driven, meaning it is on whenever your engine is on. Increased power throughout the range, while using more fuel (being on at all times).
Differences:
- A supercharger will give you more power from down low and evenly, but less peak Horsepower. A turbo will give you more peak power, and an uneven power curve (power in the higher RPMs).
- A supercharger has a constant whine while a turbo is silent until it spools up. Then it has a 'whoosh' sound. Add a blow off valve if you like attention.
- Both will put more stress on the engine and fuel; consumption, but will depend on how you set and tune them.
I personally reccomend a turbocharger over a super. Good luck!4. Says: turbocharger used less gas cause it takes its power from the exhaust (free energy) its more efficient so it uses less gas to deliver the same power
the supercharger runs off the crank so it takes power away from the engine..you need more power and thus more fuel to run the supercharger, but in the end you get more power5. Says: yes.
it is used to compress air. in order to perform its function, it needs to be driven. it is driven by the car's engine. because of that, it consumes *some* fuel. it's like all other energy consuming devices in your car. run your car on idle, then turn on the air conditioning. the idle RPM will drop. air conditioning is just another gas compressing device. turn on the searchlights or windshield heating or seat heating - all will result in RPM drop because of increased power consumption.
also, by supplying MORE air into the cylinder, more fuel needs to be used to maintain proper fuel to air ratio. THAT's where the superchargers/turbochargers produce more power in your engine- obviously at expense of higher pressures to be handled -either by limited lifetime of entgine components or by bulkier engine construction.
the superchargers/ turbochargers are used where you cannot/do not want to fit a larger engine volume.
saying "exhaust energy is free" is invalid. blocking the exhaust gasses is used as one of major braking systems for large trucks. turbochargers BLOCK the exhaust gasses.6. Says: Yes - either will use more fuel - not only by virtue of forcing more mixture in, but that the fuel system (carb or injectors) and ignition system (timing curve) are modified. And - you usually need higher octane fuel as forced induction is effect raises the effective compression ratio. Tag: Does having a supercharger use more fuel?