4 Cylinder vs. Inline 6

Dirkk · 06-15-2012, 06:17 PM

I've been told that with out a doubt inlines are going to be more reliable in the long run. Tell me this is false an I'm in on the 318ti bandwagon.

BimmerBum · 06-15-2012, 06:25 PM

I don't understand the question... the 4 cylinder in the ti is an 'inline 4 cylinder'.

Dirkk · 06-15-2012, 07:02 PM

my apology. Iwasn't paying attention, I was looking up parts for MY 4 cylinder engine, that's what I meant. Will the inline 6 be more reliable then a inline 4. I have no experience with inline 4s.

BimmerBum · 06-15-2012, 07:05 PM

Quote:

Originally Posted by Dirkk

my apology. Iwasn't paying attention, I was looking up parts for MY 4 cylinder engine, that's what I meant. Will the inline 6 be more reliable then a inline 4. I have no experience with inline 4s.

No. Both engines are very reliable.

teen ti · 06-15-2012, 07:40 PM

if you take care of them they'll both last forever with proper maintenance

Dirkk · 06-15-2012, 07:49 PM

awesome, thank you.

98318ti · 06-16-2012, 01:15 AM

I don't think I've ever seen a 4 cylinder that wasn't inline. Except maybe in a motorcycle.

Forgot my old volkswagen that had a horizontally opposed 4 cylinder air cooled motor. 40 HP too.

teen ti · 06-16-2012, 01:18 AM

Quote:

Originally Posted by 98318ti

I don't think I've ever seen a 4 cylinder that wasn't inline. Except maybe in a motorcycle.

I bet you have, subaru uses boxers or flat 4's

Dirkk · 06-17-2012, 01:37 AM

I realized I don't know what I'm talking about. Ignore this thread. Sorry.

pdxmotorhead · 06-17-2012, 07:12 PM

Saab and Ford did V4 engines as well... Goofy little beggars they were...

Dave

zoner · 06-17-2012, 07:39 PM

Quote:

Originally Posted by pdxmotorhead

Saab and Ford did V4 engines as well... Goofy little beggars they were...

Dave

The Saab V4 was actually a Ford motor. Along with their 3-cylinder, 2-stroke, 850cc rally motor of the era, Saab engineers made a rally tuned, turbo version of the V4 that was a beast! A mechanic once told me that, balance shaft problems notwithstanding, one of the reasons they stopped using this motor was that it never broke down (although, this sounds like a bit of a conspiracy theory to me...).

pdxmotorhead · 06-17-2012, 07:43 PM

Buddy of mine runs one in vintage Rally.. He has the V4 and his dad has the 2 stroke... Great to watch...

Dave

incision · 07-08-2012, 12:52 PM

The M44 in the 318ti is a very reliable engine. I don't have much experience with BMWs inline 6 engines as I got my 323ti only 3 months ago but even as I love the M52 with its torque and sound, I think the M44 would be even more reliable as its a simpler engine (mainly it doesn't have VANOS).

cmptrwiz · 08-20-2012, 02:39 AM

Quote:

Originally Posted by Dirkk

I've been told that with out a doubt inlines are going to be more reliable in the long run. Tell me this is false an I'm in on the 318ti bandwagon.

In the real world a well maintained and not abused engines tend to last longer no matter what their configuration. V, W (VW/Bentley) or inline.

The advantage of the inline 6 is it's a smooth firing engine... A V-12 is also a inherently smooth engine. Inline 4's tend to shake at idle (especially) though most modern Inline 4's have 'balance shafts' to smooth them out.

Crashaddict · 08-20-2012, 03:03 AM

Less moving parts typically means a more reliable engine. By this logic the I4 should be the more reliable engine, and it is a terrific little bugger(although The I6 is also very reliable)

* this logic does not apply to rotaries *

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