Engine Type Inherent Stability?

nightsky87 SG

Manage to grab this interesting tidbit from one of the other forums

"inherent stability - i.e. the tendency for an engine configuration to vibrate. More vibration = more wear and tear, thus shorter replacement frequency of the mounts.

Most inherently stable first:

F8 > V8 > F6 > IL6 > V6 > F4 > V4 > IL4 "

I honestly admit this is the first time i've heard of such a thing, any gurus care to share their take on this?

tomsss SG

I'd say the best engine out of that lot is the straight-6. The design itself is naturally balanced and doesn't need balance shafts, unlike the Vee-engines. Plus they sound awesome :D

Naughtius Maximus SG

I'd say the best engine out of that lot is the straight-6. The design itself is naturally balanced and doesn't need balance shafts, unlike the Vee-engines. Plus they sound awesome :D

Agreed...

nightsky87 SG

But unless you have the money to fork out for a beemer, I think its quite impossible to own a I6.. at least for the rest of the general population..

nyox SG

But unless you have the money to fork out for a beemer, I think its quite impossible to own a I6.. at least for the rest of the general population..

you forgot about the Chevrolet Epica. it's also using an IL6 engine.

btw are there any commerically produced cars that are using F8 or IL8?

tomsss SG

you forgot about the Chevrolet Epica. it's also using an IL6 engine.

yeah but in a FWD format?

alleggerita SG

Nope, the most inherently balanced engine would be the V12 because it's made up of two banks of straight-6.

Read wikipedia for more info.

veron soh SG

Nope, the most inherently balanced engine would be the V12 because it's made up of two banks of straight-6.

Read wikipedia for more info.

Yes,V12 is good,but in S'pore road speed,there is almost no diffrence between a S300[V6] & a S600[V12].

alleggerita SG

Yes,V12 is good,but in S'pore road speed,there is almost no diffrence between a S300[V6] & a S600[V12].

There's still a difference. What if the owner likes to rev his engine to the redline? Revving the engine to the redline doesn't mean he's speeding. So when an engine is revved to the redline, it will become obvious whether the V6 or V12 is smoother. :lol:

veron soh SG

I don't think you can revved a S600 to redline in S'pore,2nd gear in that car can reach 120km/h easily.!

alleggerita SG

I don't think you can revved a S600 to redline in S'pore,2nd gear in that car can reach 120km/h easily.!

Revving without gears engaged.

veron soh SG

Revving without gears engaged.

According to my dad,ALL Mercedes Benz cannot revved past 4000rpm with gear position in "P" or "N.

nightsky87 SG

According to my dad,ALL Mercedes Benz cannot revved past 4000rpm with gear position in "P" or "N.

Possible. Even normal 1.6 cars like Altis, without the ECT override will shift below 5k, only with ECT then can drag into redline. But Mercedes I think possible with the manual override also, youtube always got those people who take their Mercedes for top speed run, then always rev very high also.

alleggerita SG

You can definitely rev it to the redline, if you can't rev it to the redline, then what's the "redline" for?