[DeTomaso] Compression ratio estimate

Boyd Casey boyd411 at gmail.com
Tue Aug 13 16:31:13 EDT 2013


if you want to see something explode come home with a new 4 wheel project
and then watch your wife ( be sure to stand back!)
Boyd (divorced , grounds - too many explosions!)


On Tuesday, August 13, 2013, Asa Jay Laughton wrote:

> No no no....
> It goes through rapid disassembly due to super accelerated fuel burn and
> resultant gas expansion.
>
> Sometimes I really hate PC.
> The damn thing BLOWS UP!
>
> Asa
>
> Sent using Jedi mind tricks.
>
> -----Original message-----
> From: "michael at michaelshortt.com <javascript:;>" <michaelsavga at gmail.com<javascript:;>
> >
> To: Ken Green <kenn_green at yahoo.com <javascript:;>>
> Cc: detomaso at poca.com <javascript:;>, Jack Donahue <demongusta at me.com<javascript:;>
> >
> Sent: Tue, Aug 13, 2013 18:16:24 GMT+00:00
> Subject: Re: [DeTomaso] Compression ratio estimate
>
> Perhaps
> ...ever seen a top fuel motor with 1% too much nitro.
> It freaking explodes.
>
> Michael
> On Aug 13, 2013 2:13 PM, "Ken Green" <kenn_green at yahoo.com <javascript:;>>
> wrote:
>
> > I know that the powder used in reloading ammo is not classified as an
> > explosive, and I assume there is some technical definition based on burn
> > rate.  When selecting a powder you may want a fast powder for a target
> > load, or a slower powder to maximize energy.  The difference may be in
> > micro (or nano) seconds, but there is a very real difference in
> theoutcome.
> >
> > Ken
> >
> >   *From:* Boyd Casey <boyd411 at gmail.com <javascript:;>>
> > *To:* Melanie Disco <michael at michaelshortt.com <javascript:;>>
> > *Cc:* Jack Donahue <demongusta at me.com <javascript:;>>; "
> detomaso at poca.com <javascript:;>" <
> > detomaso at poca.com <javascript:;>>
> > *Sent:* Tuesday, August 13, 2013 9:40 AM
> > *Subject:* Re: [DeTomaso] Compression ratio estimate
> >
> > No need to explode about it! LOL
> >
> >
> > On Tue, Aug 13, 2013 at 8:40 AM, michael at michaelshortt.com <
> > michaelsavga at gmail.com> wrote:
> >
> > > I don't think that this is worth a semantics discussion Larry, you know
> > > what I meant.
> > >
> > > The official definition ( of 12 offered, this #1) is.
> > > ex·plode  (k-spld)v. ex·plod·ed, ex·plod·ing, ex·plodesv.intr.
> > >
> > > 1. To release mechanical, chemical, or nuclear energy by the sudden
> > > production of gases in a confined space:
> > >
> > > Whether ignited by a spark or by pressure (as in a diesel), the fuel
> > indeed
> > > explodes and that explosion is what drives the piston down. IMHO,"burn"
> > > does not fully convey the mechanical reaction which occurs. Merely
> > burning
> > > fuel doesn't have the same word power or descriptive power of the
> > > intensity, especially when put in the content of a Formula One engine
> > which
> > > at 18,000 revolutions per minute caused by 144,000 little explosions.
> > > Perhaps in an Isetta, but in an 8,000 hp funny car, my Pantera and even
> > my
> > > weed wacker, I can hear these very rapid "explosions" which are caused
> by
> > > fuel being burned in a sudden manner in a confined space = definition.
> > >
> > > Michael
> > > On Aug 13, 2013 8:21 AM, "Larry - Ohio Time Corp" <
> > larry at ohiotimecorp.com>
> > > wrote:
> > >
> > > > <<lower octane fuel will explode more easily.>>
> > > >
> > > >
> > > > I am not happy with the word Explode. There are no explosions in a
> > motor.
> > > > It
> > > > is a very rapid burn. The same thing is true when you shoot a gun.
> > There
> > > is
> > > > no explosion, but a very rapid burn.
> > > >
> > > >
> > > > Larry (details) - Cleveland
> > > >
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com]
> On
> > > > Behalf
> > > > Of michael at michaelshortt.com
> > > > Sent: Monday, August 12, 2013 11:19 PM
> > > > To: Jack Donahue
> > > > Cc: detomaso at poca.com
> > > > Subject: Re: [DeTomaso] Compression ratio estimate
> > > >
> > > > The more squishy it gets, the higher the compression.
> > > >
> > > > This is the volume is 64 at the bottom and 8 at the top, the comp
> ratio
> > > is
> > > > 8:1
> > > >
> > > > But if the bottom volume is 120 and the top volume is 10, the comp
> > ration
> > > > is
> > > > 12:1
> > > >
> > > > The reason that higher comp engines need prem fuel is that it is less
> > > > volatile, meaning that it takes more to set it off, where, lower
> octane
> > > > fuel
> > > > will explode more easily.
> > > >
> > > > Dieseling is a byproduct of fuel being set off by pressure rather
> than
> > by
> > > > spark, so you want fuel that reacts more to spark and less to
> > pressure, a
> > > > diesel engine doesn't even use a spark, all the fuel is exploded by
> > > > pressure
> > > > after the first reaction that is helped alone by the glow plug to get
> > it
> > > > started.
> > > >
> > > >
> > > > Michael
> > > >
> > > >
> > > >
> > > > On Mon, Aug 12, 2013 at 11:10 PM, michael at michaelshortt.com
> > > > <michaelsavga at gmail.com> wrote:
> > > > > It is the difference in volume of the cylinder space at the bottom
> of
> > > > > the stroke and between th



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