Does a larger engine size (litre size) necessarily means a higher horse power and greater acceleration?
Answers:
By rule of thumb comparing like for like .yes. However, a F1 engine is 2.4 litre and an Audi A3 is 3.2 and the F1 car will win.
it depends on the size of your car dont it.
usually but there are other factors to consider
the larger the liter size the more horse power but that don't equate to more speed and greater acceleration. If you have a small car with a 5.7 it will be faster than a large pickup with the same engine.
NO
If you take the power output of an engine, then in the majority of cases, a larger cubic capacity will result in a more powerful engine, but there are some exceptions to this. An engine will have two points of reference as far as its power output goes, and that is peak BHP and torque.
Torque will allow an engine to exert a fair amount of useable power across a range of engine speeds, where peak BHP may be in and out in a very narrow range of engine speeds.
Acceleration will be dependent on torque figures, BHP figures, and the gearing arrangement and size/weight of the vehicle in question.
It is possible to have something like a truck that could have 750BHP, a torque figure of 900FT/lbs, and accelerate like a snail as a result of its size/weight/gearing, and you would have the situation of a car with less than 50BHP and 75ft/lbs of torque easily out-accelerating that truck as a result of weight/gearing factors.
There are many variables, and it is necessary for vehicles to be compared like-for-like when assessing their abilities in relation to speed and acceleration.
not necessarily, you have to take the weight of the vehicle into consideration, artic lorries have massive engines, very slow acceleration! If you're considering 2 cars same make and model but one with a bigger engine then yes it means more power. but sometimes the type of engine counts. e.g. 1.6litre may not be as fast as a 1.4GTi
Depends on the type of engine, and how many mods have been done. But if your talking stock standard, then yes. The bigger the cubic inch (litre) then the bigger the HP. Same goes for acceleration. Unless the car weighs tons, then acceleration may suffer. Gear ratios also play a big part in acceleration, stall converters for off the line snap. But if you have two cars the same basic weight, and in one have a 3.2 litre and the other has a 5.7 litre, the 5.7 will roast the 3.2. These are for petrol engines. Diesel you get more horse but it goes more to torque. Propane, it will make a difference but propane suffers when it comes to raw power. Petrol is the best for raw power. And old muscle car engines are really the best, you can mod them way more than current engines, and they are tougher.
sometimes
Generally yes.
Lots of american cars have big engines, 5l plus, but low compression ratios and low BHP outputs, small engines 2l or less that are supercharged or tubo'ed can easily put out more power. On the acceleration as others have said that depends on the car, sometimes even then a larger engine that produces more power won't result in a faster car, the Porsche 911 in the early 80's moved from 2.7 to 3l but because the 3l engine was heavier the cars are about the same in acceleration.
the honda S2000 is 240hp from a 2.0 naterally asperated. chevy 5.7s were not even close to this in the 80s. there are lots of factors to consider, size is a minimal part of how much power an engine produces. also, i heard once that if you cut your weight down by 1/2, a compeditor would have to increase his horsepower by 4x.
base 2000lb, 100hp
you 1000, 100hp=2000, 400hp.
i dont know how true that is though
Neither, acceleration and power are different things as Honda keep discovering.
generally a larger engine will produce more torque than a similar but smaller one and torque times revs equals power but the larger one will often not be able to rev as high as the little one, the Triumph Sptfire is a good example, 1300 and 1500 have similar power, but 1500 does it at lower revs.
F1 engines have been mentioned but the 1500cc Turbos of the 1980s were more powerful than the 3000 and now 2400cc engines currently used, and for fastest road cars the turbo Konigseg or what ever is about as fast as the much larger non turbo Mclaren F1, and the V12 TVR was too unreliable to bother with. So really the answer is larger engines usually have better torque and drivability than little ones and all things equal will be faster and accelerate better but all things aint equal.
Higher horse power, yes. Greater accelaration, No. Accelaration depends on many more factors besides power.
No, I could get a 1.3litre engine and bolt on 2 turbo's and have massive amounts of horse power. Another thing to look at is how much torque and engine gives, as this is another big factor in pulling power.
youdo have took take stuff in to consideration like weight.
for instance my mate has a subaru (modified). theoretically a jaguar 4.0v8 should out run it but it dont as the scooby has bin modded. scooby 2.0turbo
or rs2000 2.0lturbo escort against lotus esprit v8 rs 2000 as its tuned
forget about weight of vehicle the rs 1800 escort mk11 was faster than the rs2000 the rs 1600 mk1 escort was faster than the mk1 rs2000 engine size has nothing to do with hp or torque it is the design and efficiency of the engine has changes these factors
you are comparing apples and oranges-if you take a chevrolet and install a small block 262 cid V8 and test it then remove 262 and install 400 cid V8 (exact same engine family and exterior demensions ,cam specs ,carb and cylinder heads all swapped over ) bigger engine will perform better but as soon as you change ANYTHING OTHER THAN DISPLACMENT all bets are off.the reason i used chevy for the example is it is only engine with enough interchangeable parts to prove claim
only on power out of crankshaft at wheels other things come in size and weight of vehicle also on age of engine as old engine had large bore so say a 3 litre engine only had say 35hp where as now now a 2.5 litre engine can run as much as 300 to 500 hp with rite parts fuel injection and rite fuel
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