Re: [DMCForum] ATTN: Jim S

[Jim Strickland <ihaveanaccount@xxxxxxxx>]

How can i possibly contest Bill's ass-dyno?

It's not my theory, it's internal combustion theory.  I'm not hurt if you
don't agree with it. 



On Mon, 05 Jan 2004 17:30:35 -0000 "content22207"
<brobertson@xxxxxxxxxxxx> writes:
> My replacement PRV has what appears to be a timing scale transferred
> from a DeLorean (has a notch at 13 degrees). Note that 10 degrees is
> Volvo B27F spec (according to factory literature) as well as B27E 
> and
> Renault Z7V (R30). That notch has always perplexed me. Just to try
> your theory out, I advanced to it before driving to Louie's house 
> this
> weekend. Valves didn't clatter a bit (93 octane) BUT:
> - Power certainly wasn't increased
> - Plugs came out white
> - Engine ran too hot
> I have Louie as an eyewitness.
> 
> With all due respects, your theory failed.
> 
> I think the fellow in Ohio who was marketing these engines 
> transferred
> DeLo timing scales to get then through emissions (are non-Lambda).
> Timing to that notch has never produced anything but problems. He 
> must
> have gotten the initial index OK because engine performs like a 
> champ
> back at 10 degrees. Note that photographs of actual engines in Volvo
> factory literature shows no notches on B27 timing scales. Am 
> assuming
> Renault Z7V is the same.
> 
> Bill Robertson
> #5939
> 
> >--- In DMCForum@xxxxxxxxxxxxxxx, Jim Strickland 
> <ihaveanaccount@xxxx>
> wrote:
> > Isn't it ironic that the website that Martin told you to read 
> months ago
> > is now your vindication.  I knew you didn't read it!!!
> > 
> > Unfortunately, the website does not say that advanced timing 
> reduces
> > horsepower.  It says that advance for the sake of advance is not
> > necessarily a good thing.  He says that an engine that needs less
> advance
> > can achieve more horsepower, not that an engine with less advance 
> will
> > achieve more horsepower.  The difference is that he was talking 
> about
> > similar timing advance over different engines, where you are 
> talking
> > about changing timing advance in the same engine.
> > 
> > He also says that "Excessive advance is just as detrimental to 
> power
> > output ", but this is in reference to his earlier comment where 
> the
> > excessive advance caused knocking.  
> > 
> > You may be right, but I still think you're wrong; and this website 
> does
> > not help your case in my opinion.  
> > 
> > Jim
> > 
> > 
> > On Sun, 04 Jan 2004 20:04:34 -0000 "content22207"
> > <brobertson@xxxx> writes:
> > > Re: Martin's Message #38006 on the List:
> > > 
> > > As much as I hate to gloat:
> > > 
> > > The third paragraph under the section titled "Ignition Timing" 
> > > clearly
> > > states what I have maintained all along -- that too much 
> ignition
> > > advance can REDUCE horsepower. You can't simply rotate the 
> > > distributor
> > > until the valves start to clatter, then back it off a degree or 
> two.
> > > That is NOT the point of optimum spark -- it is the point 
> closest to
> > > potential engine damage. Is a world of difference between the 
> two.
> > > 
> > > I'd have given David Baker MORE than a pound for pointing that 
> > > out...
> > > 
> > > Bill Robertson
> > > #5939
> > > 
> > > 
> > > 
> > >  
> > > 
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