Considering 2 engines having the same total displacement volume and the same total power produced within the cylinder..
what are the advantages of:
1- a V6 over a straight 6 engine
2- a V8 over a V6
3- a V6 over a V8
4- an opposed cylinder four over a straight four
5- an in-line six over an in-line straight four
2006-10-12 09:54:23 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Okay, of course bigger engines are made for the size of car it is in. You wouldnt think about putting a four cylinder into a big muscle car or caddy. The advantage of a V6 over a straight six is all about drivability. The V shaped engine is made to lessen vibrations of the engine and cause for a more comfortable and stable drive. A straight engine vibrates outward. A v shaped engine vibrated on both sides tword the middle, lessening vibrations coming out of the engine and affecting comfortability, engine rattle and stability.
2006-10-12 10:05:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
MAN! That is a lot of question. Take some time to think about it. An 8 has to work less to rotate the crank than a 6, so the pistons travel at a slower speed than the 6 therefore producing less heat and has a longer life span. V6 has its' mass traveling outward and tends to run smoother and can run higher rpms than a straight 6. Same with the opposed 4 vs straight 4. Just remember to take into account that the rotating masses of a piston based engine create a lot of force, not only down on the crank, but also outward on the exhaust and compression stroke. You also have to take into account the stroke length, which will determine torque, hp, and top rpm's. For example, a 305 v6 has huge cylanders and longer stroke, but the 305 v8 will last longer, go faster, and usually, use less gas because each piston is traveling fewer strokes for the same power, and creating more torque.
2006-10-12 10:07:56 · answer #2 · answered by rex_rrracefab 6 · 0⤊ 0⤋
Hmm. Well, the V6 is more compact than a straight six,.
The V8 is a smidgen smoother than the V6, but the V6 actually has more power. Has to do with the crankshaft geometry. Not sure about (4), but the in-line six is smoother than a four.
Hope that helps.
2006-10-12 10:06:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The answer by rex_rrrac was excellent.
Usually the shorter crankshaft of the V or pancake engines means it is better supported and better oiled which will theoretically allow higher rpms.
Note that two engines of equal horsepower does not mean they also have equal torque.
Remember that the real-world auto engine does not spend its life on the dyno, but installed in a vehicle. Therefore the advantages of any engine are greatly influenced by such factors as gearing, vehicle weight, intended use of the vehicle, etc.
2006-10-12 11:00:14 · answer #4 · answered by db79300 4 · 0⤊ 0⤋
woody wins. the next guy was good till the part about v6 having more power than v8... look it up. can you spell hemi?
2006-10-12 10:12:35 · answer #5 · answered by Anonymous · 0⤊ 0⤋