[Shotimes] (OT) Marauder

Mon, 4 Nov 2002 06:27:21 -0600

Years ago when I was into 5.0 Mustangs (before I bought my SHO), Super Ford
magazine had an article about a company that made 4V heads for the 5.0.
Neat idea but it looked kinda complicated plus I think there were
reservations about the reliability as a hi-perf item.  They never gained any
popularity that I know of and just faded away.

Mark

> -----Original Message-----
> From: shotimes-admin@autox.team.net
> [mailto:shotimes-admin@autox.team.net]On Behalf Of David P
> Sent: Monday, November 04, 2002 1:51 AM
> To: Midwest SHO Specialists SHOtimes; dmall@mwonline.net;
> shotimes-admin@autox.team.net
> Cc: shotimes@autox.team.net
> Subject: Re: [Shotimes] (OT) Marauder
>
>
> I want to see these plenty of 4 valve OHV motors.
>
>
> David P
>
> 95MTX
>
>
>
> ~
> ----- Original Message -----
> From: "Midwest SHO Specialists SHOtimes"
> <MidwestSHOspecialists@hotmail.com>
> To: "David P" <jpotter8@bellsouth.net>; <dmall@mwonline.net>;
> <shotimes-admin@autox.team.net>
> Cc: <shotimes@autox.team.net>
> Sent: Monday, November 04, 2002 01:33
> Subject: Re: [Shotimes] (OT) Marauder
>
>
> >      Actually there are plenty of of 4 valve OHV motors around.  You do
> not
> > need to squeeze extra lobes on the cam either.  All of the pushrod OHV 4
> > valve engines that I have seen have fingers in the heads that
> operate both
> > intake valves off of one pushrod.  This is very similar to how
> SOHC 16V 4
> > bangers operate.
> >
> >      Also Yamaha didn't have the advances that we have now when
> they were
> > designing this motor.  Keep in mind that the motor was designed 17 years
> > ago!  That's amazing when you think about it.  They were
> waaaaay ahead of
> > their time.  I digress though.  Hydraulic tappets were not used for fear
> of
> > high RPM oil foaming which would have caused them to collapse.
> >
> > ~ Mike
> > ----- Original Message -----
> > From: "David P" <jpotter8@bellsouth.net>
> > To: <dmall@mwonline.net>; <shotimes-admin@autox.team.net>
> > Cc: <shotimes@autox.team.net>
> > Sent: Sunday, November 03, 2002 11:20 PM
> > Subject: Re: [Shotimes] (OT) Marauder
> >
> >
> > > Since all OHV motors are two-valvers, and four valves allow more
> efficient
> > > combustions, then pushrods DO have a bit to do with
> emissions, at least
> > > until they figure out a way to cram 4V onto a single cam.
> Sure, injector
> > > placement, intake flow, etc play a large part, but when considering
> solely
> > > 2V vs. 4V, 4V is going to win on emissions and power. You think maybe
> > there
> > > is another reason why the Corvette runs a 2.73 final?
> > >
> > > As for OHC being high maintenance, I think you are forgetting that the
> SHO
> > > does not have a hydraulic tappet. Remove the hydraulic tappet from any
> OHV
> > > motor and it becomes just as maintenance intense. Not as expensive to
> > build,
> > > but just as expensive to maintain. If Yamaha had inserted hydraulic
> > tappets
> > > into their design, we would not be sitting here exclaiming the need to
> do
> > > the 60k on time.
> > >
> > > Sure, the small block (or more specifically, the OHV design) will be
> > around
> > > for some time, but eventually it will be dropped in lieu of more
> efficient
> > > designs in our nation's quest for emissions reduction. Don't get upset
> > about
> > > it though, as OHC's days are numbered as well. There are much better
> > > air/fuel injections systems on the boards and in testing that
> don't have
> > > valves as we conceive them that will see fruition in the last half of
> this
> > > century, leaving OHV as the predominant valve design of the 19th, 20th
> and
> > > 21st centuries. Not too bad a run, but definitely a
> technology that has
> > > outlived it's usefulness.
> > >
> > >
> > > David P
> > >
> > > 95MTX
> > >
> > >
> > >
> > > ~
> > > ----- Original Message -----
> > > From: "Donald Mallinson" <dmall@mwonline.net>
> > > To: <shotimes-admin@autox.team.net>
> > > Cc: <shotimes@autox.team.net>
> > > Sent: Saturday, November 02, 2002 16:24
> > > Subject: Re: [Shotimes] (OT) Marauder
> > >
> > >
> > > > Yes production was low, although that is what you said, not
> > > > i.  They also sold every one they made, and even ramped up
> > > > production and held it longer than planned to try to meet
> > > > demand.  You expected maybe they would sell them in Focus of
> > > > Camry numbers?  NO special vehicle sells in big numbers,
> > > > Cobra, RX7 etc.  But they did sell a lot of the basic
> > > > Caprice, a great tow vehicle and very good police car that
> > > > the police across the nation still lament not being able to
> > > > get.  They have never warmed up to the low torque and low HP
> > > > "High tech" Crown Vic.
> > > >
> > > > High emissions?  Not really, the small block chevy lives on
> > > > in the Vette and a huge amount of other applications as a
> > > > low emissions vehicle!   And don't spout the "low tech"
> > > > pushrod cam mantra.  The motor works and puts out more HP
> > > > and torque than competing motors from Ford.  Pushrods have
> > > > nothing to do with emissions, it is ignition and fuel
> > > > control more than anything, and combustion chamber design.
> > > > The new small blocks are as good as anything out there,
> > > > better than most.
> > > >
> > > > I am a basic fan of Ford, but there is NO, repeat, NO
> > > > arguing with the extreme success of the small block Chevy.
> > > > Ford had a similar motor, but they dumped it.  Now they are
> > > > really struggling with the more expensive to make and
> > > > maintain OHC motors.
> > > >
> > > > And yes, mods are plentiful, they work, and are cheap.  That
> > > > , my friend is the outline and model for the most successful
> > > > motor of all time, including today.  I am willing to bet the
> > > > small block is around longer than the OHC Ford motor.
> > > >
> > > > Don Mallinson
> > > >
> > > > sho2go wrote:
> > > >
> > > > > ----- Original Message -----
> > > > > From: "Donald Mallinson" <dmall@mwonline.net>
> > > > > To: <shotimes-admin@autox.team.net>
> > > > > Cc: <shotimes@autox.team.net>
> > > > > Sent: Saturday, November 02, 2002 8:00 AM
> > > > > Subject: Re: [Shotimes] (OT) Marauder
> > > > >
> > > > >
> > > > >
> > > > >>I agree with much of what you say, but you imply that the
> > > > >>Impala from the mid 90's was not successful.  Nothing could
> > > > >>be farther from the truth.  That car sold above sticker for
> > > > >>its entire run, and was only killed when GM needed the plant
> > > > >>to build more prolific and profitable trucks/suv's.
> > > > >>
> > > > >>
> > > > > Well, I was looking at production nos. awhile ago, and they were
> low.
> > > So
> > > > > what you are saying is that GM kept production low?  That would
> > explain
> > > low
> > > > > sales and remaining residual demand.  Of course the mods will be
> > > plentiful
> > > > > for that engine, but its old tech, high emissions design dooms it.
> > > > > Mike
> > > > > ______
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