What is more of a factor in how fast a car will go. The engine size (V8, V6) or the horsepower?

Question

Does the engine size in turn effect the horse power or how does this work? What car would go faster a car with 200 horsepower but a V8 or a car with 290 horse but a V6. What does each effect in the speed stage like early or end. I know torque gets you off of the line and HP helps you keep goen.

Answer 1

Horsepower and torque. That's what move the vehicle.

290 horsepower is the same in either a V6, V8, or any other size motor.

Engine size determines the potential horsepower.

It is much easier to get 600 horsepower from a 500 cubic inch (8.2 liter) V8 than a 183 cubic inch (3 liter) V6.

Answer 2

Actually horsepower is somewhat different than top speed. horse power is measured of distance with a given time ( Not including the car itself ) but just the actual engine. A I4, V6, V8, V12 can reach the same top speeds generally, However with greater speed comes more resistance depending on drag, tranmissions, and wt. V6 and V12 have a huge bonus than to I4, V8, and V10's cause its balanced. Though most race cars generally have V8's. Usually More cylinders means more Horsepower in turn mean better fighting the air resistances, wt that a car will get at high speeds. And other factors like short and long strokes also come into place.

Answer 3

Horsepower.

An larger engine generally gets more horsepower, but smaller engines can generate even more horsepower if they are designed to or modified.

V8s are smoother because you have more cylinders firing to even out the power and can give you more power at lower speeds. My Buick 5.7 liter V8 cruises on the freeway with hardly any engine noise becuase it is not working very hard. Whereas a smaller engine has to work a lot harder to deliver the same speed.

A 4 cylinder engine has only 2 power strokes per revolution, whereas a V8 has 4 power strokes per revolution.

Answer 4

engine size is in direct relation to horse power

Answer 5

gearing is a factor too tranny rear end wheel and tire size quick and fast are two different things