🚀 go-pugleaf

On Sat, 20 Feb 1999 00:12:31 GMT, Woody <Woody93LX@yahoonospam.com> wrote:
>On Fri, 19 Feb 1999 12:17:19 -0800, "Kip C. Anderson"
><kca(@)rio(.)com> wrote:
>
>>
>>Woody wrote in message <36cdbb22.5729469@nntp.ix.netcom.com>...
>>
>>>Turbo 4cyl are not more reliable than American V8s.
>>
>>Perhaps not, but it's been my experience that they have been.  No V8 engine
>>in my family (GM & Ford) has lasted more than 60-80k miles without needing
>>some serious attention.  Modern well designed 4 cylinder turbo motors such
>>as Toyota's 3S-GTE, or the Isuzu / Lotus 4XE1-WT motor have been known to
>>run fine with well over 100,000 miles under hard use (like track days,
>>autocrosses, and hillclimbs).  There are exceptions.
>
>
>'87 GT midly modified   145k and still runs strong
>'87 LX 5.0L   stock    136k and still runs strong
>'93 LX 5.0L  heavily modified   46k, 6k on engine (im breaking alot of
>
>      shit on this one so it doesn't count)
>
>the dinosaur pushrod V8s in the Caprice that Taxi companies use are
>one of the most reliable engines (even a crappy magazine like Consumer
>Reports says so). So are the Ford 302s and GM 350s

There are dinosaurs and there are dinosaurs (and dyno-soars).  The big
improvement in manufacturing that the Japanese learned from Deming was
to try to get everything exactly to spec, rather than within tolerances.
American companies finally came to that, too.  That is the biggest 
difference in manufacturing the engine between a '57 Chevy and the V8
Caprice (I was under the impression that most taxi companies used sixes, but 
I don't really know - they _used_ to).  The other big difference is in bearing
and other materials, both in content and quality.  More recently, using 
roller bearings has helped valve trains last longer.  That is why I never
had to open up the engine in my '86 Lincoln in over 200K miles.  And I
still see it driving around a couple years after I sold it!

Note that even Lotus went to a V8.

>
>I would say that 4cyl from Toyota and Honda non force inducted would
>be more reliable than the V8s, but not the force inducted. My 4cyl
>Toyota's got 206k.

I agree.  As someone else posted, more complicated systems.

It's certainly fair to say that modern inducted engines are more reliable
than older normally aspirated engines.  It may not be fair to compare
modern V8s to older V8s in reliability.  I find that Saturn commercial
about the 300K car that only had the drivers seat go bad... suitable for
tabloid TV.


jg
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