"Ray Block" <BPracing@wowway.com> wrote:
[...]
> Well Jon, not only am I not an engineer, I haven't even stayed at a Holiday
> Inn Express. ;-) However, I (and others I will mention) do have real
> world experience with these engines under extreme conditions.
The best kind of experience. :-)
> First of all, let me say that I agree with your perception of how the fuel
> rail is pressurized and what little effect the firing of an injector has on
> the system. While I can imagine a situation where someone may have a
> large enough engine and large enough injectors to tax a stock system's
> capabilities (fuel rail or pump), I can't imagine it being very common or of
> any concern to the vast majority of us.
Yeah, something just seemed to tickle the ol' BS meter on that one.
His engine definitely wasn't very radical, IIRC, the most extreme mod
was ported heads. I dunno why he didn't just drop a 360 in there
instead of going through all the trouble of taking a 318 out to ~340.
Anyhoo, like you were saying, I could understand if he was making
900hp that he might have a fuel feed issue, but this guy's fuel needs
are basically stock, and with all of the Daks out there running some
pretty wild combinations with the stock fuel rails, from NA through
nitrous, blowers and turbos, this is the first time I've heard about
this "lean #2" condition.
> Since you mentioned Mopar Muscle as the source of this story, I will add
> that there is a thread on a Mopar forum questioning the validity of another
> Mopar Muscle article that proclaims the stock hydraulic roller lifters in
> Magnum engines are too heavy and prone to failure at rpms above 5400.
On a completely unrelated tangent ;-) I would love to be able to
use hydraulic rollers in my next big block build. I *think* I have
seen where some companies are starting to come out with them now, so
if its a bolt-on deal, so much the better. I don't know what has
taken so long for somebody to do this. Roller hydraulics have got the
low rolling resistance and fast ramping abilities of a roller cam with
the low maintenance of a hydraulic, and the icing on the cake is a
stress-free break in; no worries about wiping out a cam lobe on that
critical first startup.
> Basically, I don't put a whole lot of stock in much of anything the Mopar
> rags write about. When it defies common sense or my experience, I just
> call BS on the whole thing and move on. LOL
Thanks, Ray (and to everyone else who replied as well). I'm glad
to see that my gut / BS detector is still somewhat functional. ;-)
--
-Jon-
.- Jon Steiger -- jon@dakota-truck.net or jon@jonsteiger.com -.
| '96 Kolb Firefly, '96 Suzuki Intruder, Miscellaneous Mopars |
`-------------------------------- http://www.jonsteiger.com --'
This archive was generated by hypermail 2b29 : Fri Sep 05 2008 - 15:32:20 EDT