[DMCForum] new topic PLEASE!

["John Dore" <dmcjohn@xxxxxxxxxxx>]

Hey Marc (Levy), how are you getting on with your engine conversion 
project? Any pics yet? 

Thanks,
John
PS Please give PRV arguments a rest for a week, it is sooo boring.


--- In DMCForum@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
wrote:
> The point I was making is: my engine burns too hot timed at 13 
degrees
> BTDC (that mysterious notch on my timing scale, which I am now
> convinced was transplanted, not original the the block -- even F
> series B27 is spec'd at 10 degrees). Jim thinks it doesn't get too
> hot. I have Louie as an eyewitness: plugs weren't melted (Delco
> R42's), but they definitely were headed in that direction. There IS
> such a thing as too much burn time in the cylinder...
> 
> The "ass-dyno" he refers to is my perception that the car performed 
no
> better timed like that. But I apparently have no idea what I'm doing
> anyway (Dear God, please don't let my driveway full of vintage
> automobiles disintegrate like the Blues Brothers the next time I 
turn
> the key) so my butt must be the world's most imprecise measuring
> instrument.
> 
> And don't go waving your HP numbers too proudly: even my dumbed down
> 460's, only producing 210 HP, still turn 425 lbs of torque. Move 
5,000
> lbs of sheet metal (and a REAL cast frame, thank you very much) 0-60
> in 8-9 seconds effortlessly. The reason they don't scream at
> rediculously high RPM's is BECAUSE THEY DON'T HAVE TO. 
> 
> How are these for sweeping statements:
> Advantages of a REAL big block (PRV is *NOT* a big engine):
> - Power -- "there is no replacement for displacement"
> - Slower RPM's -- quieter running, less stress on engine components
> - Lower operating temperature -- seals and gaskets last longer
> - Ease of maintenance -- not only is every single component larger 
and
> easier to access, but you don't have to mess with them nearly as 
often
> 
> Final thought: doesn't your statement that "Some of us might be more
> worried about simply getting the most complete burn" (apparently in
> reference to advancing ignition time) TOTALLY confirm what I said 
last
> month about American manufacturers doing just that to get through
> emissions?! Last month I was thoroughly pilloried for saying such. 
Now
> you say EXACTLY the same thing...
> 
> Bill Robertson
> #5939
>  
> >--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <webmaster@xxxx> 
wrote:
> > Hello to the king of sweeping statements once again. (and sorry 
to 
> > everyone else, I couldn't resist). Still wondering exactly what 
point 
> > youre making, Bill.
> > 
> > content22207 wrote:
> > 
> > >Internal combustion reality is: the longer the mixture burns, the
> > >hotter the cylinder and its components will become.  
> > >
> > Some of us might be more worried about simply getting the most 
complete 
> > burn.
> > 
> > >Guess you've
> > >never heard of someone burning a valve. I've also heard of people
> > >melting holes in the tops of their pistons. BTW: It's usually the
> > >"performance" crowd doing these things. 
> > >
> > Yes. Because when playing with turbo engines it's all too easy. 
You
> have 
> > to worry about three things, all which affect each other. Boost, 
timing 
> > and fuelling. If one goes wrong.... my friend's Skyline melted a 
piston 
> > because a head gasket job had been done a bit overzealously and 
the 
> > compression was too high, for example.
> > 
> > >Have you ever compared the operating temperature of a big block 
to a
> > >little engine like the PRV? 
> > >
> > You're labouring under a serious misapprehension if you think the 
> > DeLorean's PRV is small. It's a 2.85l low compression, large bore,
> short 
> > stroke V6. A "small" engine is a 2 litre 4cyl variable-
valve "Type R" 
> > Honda engine that screams to 9000rpm and puts out nearly 200hp.
> > 
> > Martin

---

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