New L88?

Thu Jun 21 03:33:14 GMT 2001

Is that it, the Optron Spin fixture?  Cool toy.  Shoot for 2K, I can buy a
whole lot of good quality springs & the tool to change them on the motor.

BW

-----Original Message-----
From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
Of Len Sabatine
Sent: Tuesday, June 19, 2001 8:40 PM
To: gmecm at diy-efi.org
Subject: RE: New L88?

     The Optron Spin Fixture does in deed have capability to radically
overspeed
      the valvetrain components. When valve float occurs , valve springs
become
      overheated , relax , tail out and expire. Hey , Titanium alloy
Springs give some
      impressive gains @ $ 2k for 16 pieces.
      Len

>fwiw, I think that most of the big 3 have come quite a way with cars in the
>last 10 years, I also think that they have not come far enough.  I just
>traded a 78 Regal for a 98 GP.  they were both about the same size, speed
>(turbo regal), AC, cruise, power etc, etc, etc.  what kinda gets me is that
>they both got about 20 mpg.  the regal about 17.5  top 18 & the GP 18 to
19.
>Yea the GP has more HP but it not appreciably faster.  not a big deal, just
>one of those things.
>
>I think that the LS1 is a fantastic motor.  the gains with the new LT1 &
LS1
>are great I think.  I do think though that the pushrod motor is going to
>come to an end shortly.  I don't know what is  coming next but it is
>interesting what you can do w/o all that valve train.  has anyone seen how
>much heat & noise that just the valve train makes?  it is incredible.  comp
>cams (I think that it was them) has a Valve spring test fixture.  they spin
>a piston less engine w/a an electric motor.  It generates soo much heat
that
>they have to run the water pump & such to keep the motor down to 150 or 160
>Deg (or there abouts).  this blows me away.  the person that wrote the
>article said that it sounded like the motor was running it made so much
>noise.
>
>If any of yall have not seen it check out the Coats rotary valve.
>http://www.coatesengine.com/ If you ask me THIS is high tech.  There are a
>number of innovative things that this guy had to overcome, sealing,
>longevity, tolerances etc.  never mind OHC & DOHC & 4 & 5 valves/ hole.
>take the reciprocating mess out of the picture & imagine what you can do.
>How about spinning your 5.0 or 5.7 to 15,000 rpm
>(http://www.coatesengine.com/popular.htm) NOW that is what I call hitting a
>high note.
>
>kinda like the Winkles, spin them to the sky & just keep going.  the short
>side of that is (as someone pointed out) no torque.  how about the best of
>both worlds?  maybe.
>
>I have said it for years, If you want to know where the state of high tech
>is & where the auto's are headed, Look to the motorcycle industry.  They
are
>innovative.  anyone ever seen an 8 valve/cyl OVAL piston motor. Honda made
>one.
>
>in the end, HP & torque rule & GM has that sown up.  But, when you look @
>the almighty sales $, Ford is kicking the heck out of GM, anyone crying
over
>the loss of the F body? how can ford sell over 2 times the volume as GM,
>they must be doing something right.
>
>Its all good, just some is better than others in some ways.
>
>my2c
>BW
>
>
>
>-----Original Message-----
>From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
>Of akallotte at juno.com
>Sent: Monday, June 18, 2001 6:02 PM
>To: gmecm at diy-efi.org
>Subject: Re: New L88?
>
>
>Wow, I'm not at all embarassed to pilot a pushrod Chevy.  Neither are the
>new Vette owners with 400 reliable, drivable hp out of showroom 346 ci.
>And don't forget torque.  That's what seperates the LS1 from the
>"high-tech" stuff.  What torque at what rpm would the theoretical Honda
>V8 produce?  Torque is what makes the LS1/6 fuel economical.  The main
>benefit to DOHC is 4 valves per cylinder, which is why the general is
>developing a dual cam in block setup.  BTW, I think the GM LSx engineers
>did a great job of accomplishing their goals with the many constraints
>the general placed on them.
>On Mon, 18 Jun 2001 10:53:01 -0400 "Gonyou, Jeremy (.)"
><jgonyou at ford.com> writes:
> >
> > Ok, I see your point.  And I can fully symphathize with the fact
> > that DOHC motors take up space (I currently have a 3.4 DOHC crowding
> > the bay of a cavalier).  However, low-tech solutions from the 60's
> > *are* embarassing because they show zero engineering novelty.
> > Although Ford may be lacking with their DOHC engines, the imports
> > have shown time and time again that they can get more for less.  The
> > LS6 may be the king of the hill right now, but it's only a matter of
> > time before some honda V8 blows it out of the water (new NSX?).
> >
> > So, I will continue to attack GM for using pushrods, because it
> > shows that they are no longer the innovative company that they were
> > in the past.  In a somewhat inderect way, GM represents the
> > engineering prowess of our country.  The LS6 says that we haven't
> > learned a DAMN thing since Ed Cole first designed the small block.
> > So *that* is why I'm shamefaced when I admit to people that I drive
> > a Pontiac with a pushrod motor.  I'm American, I recognize sound
> > engineering when I see it, and I should know better.
> >
> > I don't mean to speak for ECMnut, but this is why GM is
> > embarrassing...
> >
> > Jeremy
> >
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