[DeTomaso] Ford 392 rev limit?

[Boyd Casey]

Oh that explains it, then never mind.
Boyd

On Friday, September 6, 2013, Doug Scott wrote:

> You do realize that we are both saying the same thing don’t you?
> Difference being I am using plain folks words.****
>
> ** **
>
> *doug*
>
> ** **
>
> *From:* Boyd Casey [mailto:boyd411 at gmail.com <javascript:_e({}, 'cvml',
> 'boyd411 at gmail.com');>]
> *Sent:* Friday, September 6, 2013 2:17 PM
> *To:* Doug Scott
> *Cc:* Melanie Disco; mike Drew; detomaso at poca.com <javascript:_e({},
> 'cvml', 'detomaso at poca.com');>; Pantdino; Jeff Cobb
> *Subject:* Re: [DeTomaso] Ford 392 rev limit?****
>
> ** **
>
> Once again the laws of physics make the call . Newtons second law;
> Momentum = mass X velocity.****
>
> So the momentum of the piston will be effected by it's mass X it's
> velocity, so a piston assembly of greater mass will be more inclined to
> continue traveling in the same direction the greater it's velocity. So the
> key in designing the Piston and connecting rod assembly capable of
> withstanding the greatest RPM (piston speed) is to make them from the
>  strongest *yet* *lightest (lowest mass) * material available.  It also
> calls to mind the adage that "a chain is only as strong as it's weakest
> link. So as an example if you attempted to build a Cleveland engine using
> the best possible (strongest) crank, the best main bearings the strongest
> lightest valve train , strongest everything possible but you built it on a
> Cleveland block with a two bolt main your still going to self destruct at
> an RPM that an engine with a four bolt main would be able to withstand. An
> engine or any machine for that matter is equal to the sum of it's parts.
> You can't just throw in a forged crank and H rods and ignore everything
> else. An engine  is like the best detective in the world, push it past it's
> limits and it will find it's weakest point just like Sherlock Holmes always
> finds the culprit.. Piston speed is just a guide line that gives an idea of
> what level of build you are going to need if you have expectations of
> exceeding a given piston speed (RPM). Also if you have an engine that
> develops it's peak torque and horsepower at a given RPM range there is not
> allot of point in exceeding it by very much ( as Dan Jones Pointed out)
> because you won't go any faster. (By the way Dan Jones is an engineer and
> is the most knowledgeable person that I am aware of when it comes to
> Cleveland and Windsor builds). I have spoken about the Laws of Physics now
> I am going to quote the laws (or more precisely the "Rules" of Mad Dawg  )
> ( who I believe has been the most successful at campaigning Cleveland
> Powered Panteras in the Silver state and other ORR events) ****
>
> They are Rule #1 Dan Jones is always right, Rule #2 See Rule # 1. :>)****
>
> I think like an under built engine we have over revved this subject line
> and it's ready to throw a rod!****
>
> LOL!****
>
> Boyd****
>
> ** **
>
> On Fri, Sep 6, 2013 at 12:25 PM, Doug Scott <doug at pickbbs.com> wrote:****
>
> When you jump out of a plane, there is nothing said about how fast you are
> going, they only talk about how well you stick the landing.  The reason I
> brought this up was simply to make sure all, that are reading this,
> understand the actual issue with piston speed.  Not everyone has a good
> understanding of the benefit and detriment of a longer stroke.****
>
>  ****
>
> Generally, the stronger parts are forged, but, the forged parts are
> heavier as well.  So they put forged pistons and connecting rods in to help
> keep the engine together, and in doing so, they add more weight that makes
> the effect of piston speed more dramatic.  ****
>
>  ****
>
> *doug*****
>
>  ****
>
> *From:* Boyd Casey [mailto:boyd411 at gmail.com]
> *Sent:* Friday, September 6, 2013 11:32 AM
> *To:* Melanie Disco
> *Cc:* Doug Scott; mike Drew; detomaso at poca.
>
>