Dis-engagable Superchargers???

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mmah...@teleport.com

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Jun 3, 1995, 3:00:00 AM6/3/95
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Awhile back, I got into an argument about Dis-engagable
Superchargers. My friend says that it is impossible to dis-engage a
Supercharger and have the motor still run, because the compression
will be too low or something? Some of you might recall the V-8
Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
he had a red pull switch on the stick shift which would engage the
supercharger when he needed the extra compression to escape the Road
Warriors :) Does something like this really exsist? If so, how much
would a set up like that cost?

Thank you


J. Forbes

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Jun 4, 1995, 3:00:00 AM6/4/95
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In article <NEWTNews.6996.80...@teleport.com> mmah...@teleport.com writes:
>From: mmah...@teleport.com
>Subject: Dis-engagable Superchargers???
>Date: Sat, 03 Jun 95 21:01:34 PDT

You can do whatever you want if you are in a movie :)

In real life, the blower would freewheel without a belt on it. The newer
tbirds with the supercharged v-6 use an electric clutch like an ac compressor,
and divert the air too, I believe.

If you are running a real engine, and a real blower, and making real boost,
the blower is pretty hard to turn, I think it takes a few hundred hp to turn
it. It would be tough to find a clutch that would work for this.

But, why you would want to, I dont know. At light throttle, the blower is
just going along for the ride, and the engine runs a vacuum. In my pickup,
454 with 6-71 blower, I run about 10 inches of vacuum at cruising speed.

Regards,
Jim


kbagdon

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Jun 4, 1995, 3:00:00 AM6/4/95
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> Awhile back, I got into an argument about Dis-engagable
> Superchargers. My friend says that it is impossible to dis-engage a
> Supercharger and have the motor still run, because the compression
> will be too low or something? Some of you might recall the V-8
> Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
> he had a red pull switch on the stick shift which would engage the
> supercharger when he needed the extra compression to escape the Road
> Warriors :) Does something like this really exsist? If so, how much
> would a set up like that cost?
> Thank you

It sounds like you are in the 671 Jimmy range, but the '88-'89 Toyota MR2
had a magnetic clutch supercharger system.

I'm sure with the proper amount of money, you could do anything. I think
you could do it with paxton on a mustang, you just need to find a strong
enough magnetic clutch. You also have to build a bypass loop. If the
magnetic clutch should fail, you have to be able to draw air through the
system into the intake, just to get the car to the shop.

Steve B.

--
please e-mail directly
kba...@nando.net

Devon M. Smith

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Jun 4, 1995, 3:00:00 AM6/4/95
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mmah...@teleport.com writes:

[Awhile back, I got into an argument about Dis-engagable


[Superchargers. My friend says that it is impossible to dis-

[engage a Supercharger and have the motor still run,


[because the compression will be too low or something?
[Some of you might recall the V-8 Intercepter in "MAD MAX"
[(The car Mel Gibson drove). If you noticed, he had a red pull
[switch on the stick shift which would engage the
[supercharger when he needed the extra compression to
[escape the Road Warriors :) Does something like this really
[exsist? If so, how much would a set up like that cost?

There are a couple of problems I came across when thinking
along the same lines (after seeing the movie). True, an
engine built specifically for use with a supercharger will have
a compression ratio around 7 or 8:1, which is no fun to drive
around without some boost to help out. The other problem is
that you must have a secondary way to supply the engine
with an air/fuel mixture once the blower is stopped, since the
lobes (rotors) won't allow any flow to pass from the carb (or
throttle body) to the cylinder heads when they're not turning.
I had a method worked out to open a valve which would
engage a second set of carbs, but it's not as simple as it
sounds. Since nothing's available on the market, you'd have
to come up with the clutched blower yourself. Or better yet,
mock up something non-functional like the movie car. Just
hit the switch and mash the gas, nobody will know the
difference :)

Good luck!

Devon Smith

ad...@detroit.freenet.org
--

Copeland

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Jun 4, 1995, 3:00:00 AM6/4/95
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In article <kbagdon-0406...@grail617.nando.net>, kba...@nando.net
says...

>
>> Awhile back, I got into an argument about Dis-engagable
>> Superchargers. My friend says that it is impossible to dis-engage a
>> Supercharger and have the motor still run, because the compression
>> will be too low or something? Some of you might recall the V-8
>> Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
>> he had a red pull switch on the stick shift which would engage the
>> supercharger when he needed the extra compression to escape the Road
>> Warriors :) Does something like this really exsist? If so, how much
>> would a set up like that cost?
>> Thank you
>
>It sounds like you are in the 671 Jimmy range, but the '88-'89 Toyota MR2
>had a magnetic clutch supercharger system.
>
>I'm sure with the proper amount of money, you could do anything. I think
>you could do it with paxton on a mustang, you just need to find a strong
>enough magnetic clutch. You also have to build a bypass loop. If the
>magnetic clutch should fail, you have to be able to draw air through the
>system into the intake, just to get the car to the shop.

There is no point of doing this with a paxton. It is a centrifical type
supercharger. This type generates almost no boost at cruising speed, but
when engine rpm goes up boost increases exponentially.


Walter A. Koziarz

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Jun 5, 1995, 3:00:00 AM6/5/95
to

>Awhile back, I got into an argument about Dis-engagable
>Superchargers. My friend says that it is impossible to dis-engage a
>Supercharger and have the motor still run, because the compression
>will be too low or something? Some of you might recall the V-8
>Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
>he had a red pull switch on the stick shift which would engage the
>supercharger when he needed the extra compression to escape the Road
>Warriors :) Does something like this really exsist? If so, how much
>would a set up like that cost?

the 'dis-engagable supercharger' seen on Max's interceptor was typical movie
special-effects (i.e. fake)... this has actually been discussed to death
here... but, there does exist at least one vehicle with a dis-engagable
Roots-type mechanically-driven supercharger... and that is the supercharged
[sic] Toyota MR-2...

Walt K.

>Thank you

you're welcome...

--
test-sig


Tony Tsakiris

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Jun 5, 1995, 3:00:00 AM6/5/95
to
Walter A. Koziarz (koz...@nosc.mil) wrote:
: but, there does exist at least one vehicle with a dis-engagable

: Roots-type mechanically-driven supercharger... and that is the supercharged
: [sic] Toyota MR-2...

Just seconding Mr. Koziarz's info. The MR2 does have a clutch.

I worked on superchargers for a large automotive supplier. The addition of a
clutch is largely a question of cost. For blowers with no internal compression
(e.g. Roots-type), the additional energy comsumed by the blower can be reduced
substantially by using a recirculating valve. This reduces the energy
comsumption to friction losses (bearings, seals, etc.) and pumping losses
against a very low delta pressure (intercooler and ducting). What the blower
exhausts, the blower inducts. When full boost is desired, the valve can be
closed. The blower exhaust then goes fully to the intake manifold. Very simple
and very inexpensive. (See the Ford Supercoupe for an example.)

---
Anthony Tsakiris

The opinions expressed are my own and not necessarily those of my employer.

RotaryRckt

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Jun 5, 1995, 3:00:00 AM6/5/95
to
I assume if you're looking into a disengageable supercharger
(possible, but complicated), you're only looking for occasional boost.
Save yourself some money and buy a nitrous kit! If purchased from a
reputable company such as NOS, and installed correctly, they are perfectly
safe for your engine and you can activate the system at the flip of a
switch.

Douglas Mare

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Jun 5, 1995, 3:00:00 AM6/5/95
to
Walter A. Koziarz (koz...@nosc.mil) wrote:

: >Awhile back, I got into an argument about Dis-engagable
: >Superchargers. My friend says that it is impossible to dis-engage a
: >Supercharger and have the motor still run, because the compression
: >will be too low or something? Some of you might recall the V-8
: >Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
: >he had a red pull switch on the stick shift which would engage the
: >supercharger when he needed the extra compression to escape the Road
: >Warriors :) Does something like this really exsist? If so, how much
: >would a set up like that cost?

: the 'dis-engagable supercharger' seen on Max's interceptor was typical movie
: special-effects (i.e. fake)... this has actually been discussed to death

: here... but, there does exist at least one vehicle with a dis-engagable


: Roots-type mechanically-driven supercharger... and that is the supercharged
: [sic] Toyota MR-2...

: Walt K.

: >Thank you

: you're welcome...

: --
: test-sig

Hi guys. I think you're both right, guys. While I have never seen a
Rootes-type supercharger (other than the ones used by Toyota on the
aforementioned MR-2 as well as the supercharged model Previa minivan)
that was disengageable, there are several on the market that would be
capable of just such a thing. The best-known of these is the new Lysholm
screw-type design used by Mazda on the Millenia (although I do not know
if the specific model used by Mazda includes a clutch & bypass valve),
and there is also the Latham axial-flow supercharger. The Latham
supercharger in fact needs no bypass, since engine vacuum alone is enough
to spin that big compressor. The is in the lack of compression that the
engine produces as a naturally-aspirated powerplant. There are ways to
get around this though...

Doug Mare


bry...@ngc.com

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Jun 6, 1995, 3:00:00 AM6/6/95
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In article <NEWTNews.6996.80...@teleport.com>,
<mmah...@teleport.com> writes:
> Xref: ngc rec.autos.tech:67666 rec.autos.rod-n-custom:9775
> Path:
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> From: mmah...@teleport.com
> Newsgroups: rec.autos.tech,rec.autos.rod-n-custom

> Subject: Dis-engagable Superchargers???
> Date: Sat, 03 Jun 95 21:01:34 PDT
> Organization: Teleport - Portland's Public Access (503) 220-1016
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>
>
> Awhile back, I got into an argument about Dis-engagable
>
> Superchargers. My friend says that it is impossible to dis-engage a
>
> Supercharger and have the motor still run, because the compression
>
> will be too low or something? Some of you might recall the V-8
>
> Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
>
> he had a red pull switch on the stick shift which would engage the
>
> supercharger when he needed the extra compression to escape the Road
>
> Warriors :) Does something like this really exsist? If so, how much
>
> would a set up like that cost?
>
> Thank you
>
>


Boy OH BOY!!

Isn't ignorance bliss!!!

Well let's look at it like this. If you had a supercharger and the rotors
weren't turning and the clearences between them are very small - THE
MOTOR WOULDN"T GET ANY AIR!!!!!

Thus you can't disengage superchargers and have them still sit
atop the motor!!!

Lesson learned.

Next,

bry...@ngc.com


Dick Brewster

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Jun 6, 1995, 3:00:00 AM6/6/95
to
Tony Tsakiris (tsak...@pt9254.ped.pto.ford.com) wrote:

Snip .....

: I worked on superchargers for a large automotive supplier. The addition


of a : clutch is largely a question of cost. For blowers with no internal
compression : (e.g. Roots-type), the additional energy comsumed by the
blower can be reduced : substantially by using a recirculating valve.
This reduces the energy : comsumption to friction losses (bearings, seals,
etc.) and pumping losses : against a very low delta pressure (intercooler
and ducting). What the blower : exhausts, the blower inducts. When full
boost is desired, the valve can be : closed. The blower exhaust then goes
fully to the intake manifold. Very simple : and very inexpensive. (See
the Ford Supercoupe for an example.)


Blower bypasses are also used on some of the Detroit Diesel engines with
roots blowers and turbos. It eliminates about 40 hp loss on a high
performance 6V92.


--
Dick Brewster dbre...@netcom.com


Copeland

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Jun 6, 1995, 3:00:00 AM6/6/95
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In article <D9rpp...@ngc.com>, bry...@ngc.com says...
>
>Mime-Version: 1.0
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>
>
>In article <NEWTNews.6996.80...@teleport.com>,
><mmah...@teleport.com> writes:
>> Xref: ngc rec.autos.tech:67666 rec.autos.rod-n-custom:9775
>> Path:
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tech
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>> From: mmah...@teleport.com
>> Newsgroups: rec.autos.tech,rec.autos.rod-n-custom
>> Subject: Dis-engagable Superchargers???
>> Date: Sat, 03 Jun 95 21:01:34 PDT
>> Organization: Teleport - Portland's Public Access (503) 220-1016
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>> X-Newsreader: NEWTNews & Chameleon -- TCP/IP for MS Windows from
NetManage
>>
>>
>> Awhile back, I got into an argument about Dis-engagable
>>
>> Superchargers. My friend says that it is impossible to dis-engage a
>>
>> Supercharger and have the motor still run,
>>
>
>Boy OH BOY!!
>
>Isn't ignorance bliss!!!
>
>Well let's look at it like this. If you had a supercharger and the rotors
>weren't turning and the clearences between them are very small - THE
>MOTOR WOULDN"T GET ANY AIR!!!!!
>
>Thus you can't disengage superchargers and have them still sit
>atop the motor!!!
>
>Lesson learned.
>

Research before chastising.

A roots type supercharger (thats the topic) will not impede an engine from
running if the belt is removed. The rotors turn very easily and the engine
vaccuum will make them turn as the engine is running. This comes straight
from "Smokey Ukon" supercharger extradinare.

Hmmm, wonder what crow tastes like?


Walter A. Koziarz

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Jun 7, 1995, 3:00:00 AM6/7/95
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In article <3r04a5$r...@mother.usf.edu> sf...@ns1.thpl.lib.fl.us (Douglas Mare) writes:

>Hi guys. I think you're both right, guys. While I have never seen a
>Rootes-type supercharger (other than the ones used by Toyota on the

^^^^^^
actually, the spelling is 'Roots'... that type blower was developed by a person
named Roots, a resident of the state of Indiana in the 1910's or 1920's (not
sure which) and is not a developement of the 'Rootes-group' that is known for
many other automotive works... just a minor nit, but it is nice to keep facts
factual...

>Doug Mare

Walt K.
--
test-sig


Walter A. Koziarz

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Jun 7, 1995, 3:00:00 AM6/7/95
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In article <D9rpp...@ngc.com> bry...@ngc.com writes:

[ question about disengagable superchargers deleted ]


>Boy OH BOY!!

>Isn't ignorance bliss!!!

well, is it? (see below...)

>Well let's look at it like this. If you had a supercharger and the rotors
>weren't turning and the clearences between them are very small - THE
>MOTOR WOULDN"T GET ANY AIR!!!!!

>Thus you can't disengage superchargers and have them still sit
>atop the motor!!!

fool... you've never heard of the [mechanically-driven] supercharged Toyota
MR-2? it had a Roots-blower that was disengagable...

>Lesson learned.

yes, please don't forget your lesson...

>Next,

>bry...@ngc.com

Walt K.

--
test-sig


J.A.Harvey

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Jun 7, 1995, 3:00:00 AM6/7/95
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In <D9rpp...@ngc.com> bry...@ngc.com writes:
>

>
>
>Boy OH BOY!!
>
>Isn't ignorance bliss!!!
>

>Well let's look at it like this. If you had a supercharger and the
rotors
>weren't turning and the clearences between them are very small - THE
>MOTOR WOULDN"T GET ANY AIR!!!!!
>
>Thus you can't disengage superchargers and have them still sit
>atop the motor!!!
>

>Lesson learned.
>
>Next,
>
>bry...@ngc.com
>
Actually that is not true. While the clearances of the rotors are
small, there is still enough room for air to pass. with the belt
disengaged (as sometimes happens when a belt is thrown) the engine will
continue to run, but make significantly less power. Dyers will tell you
that you can drive at highway speeds with a thrown blower belt. There
won't be a lot under your foot when you press on the pedal, but you
will still be able to drive the car. (This does not apply to stripped
rotors, and entirely different animal).

Another lesson learned

Jim (HARVEY RACING)
http://www.wp.com/HarveyRacing
<jh...@ix.netcom.com>

------Specializing in Alcohol & Nitro Engines for Drag Racing----------


Vince Negrete

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Jun 7, 1995, 3:00:00 AM6/7/95
to
bry...@ngc.com wrote:

: Well let's look at it like this. If you had a supercharger and the rotors


: weren't turning and the clearences between them are very small - THE
: MOTOR WOULDN"T GET ANY AIR!!!!!

: Thus you can't disengage superchargers and have them still sit
: atop the motor!!!

Keep reading, there were previous messages about it working...
There is a port that opens when pressure goes lower than 1 atmospere.
Like maybe an EL-CHEAPO spring loaded one way trap door, eh?

I think I'll stick with that jet engine of mine...

Scott Fisher

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Jun 9, 1995, 3:00:00 AM6/9/95
to
bry...@ngc.com writes:

>Boy OH BOY!!

>Isn't ignorance bliss!!!

>Well let's look at it like this. If you had a supercharger and the rotors


>weren't turning and the clearences between them are very small - THE
>MOTOR WOULDN"T GET ANY AIR!!!!!

>Thus you can't disengage superchargers and have them still sit
>atop the motor!!!

>Lesson learned.

1) They don't have to sit "atop" the motor
2) You yould build a waste-gate set-up that bypasses the supercharger.
3) Have a look at the Jaguar XJR

Scott.
_______________________________________________________________________________
Scott Fisher [sc...@psy.uwa.oz.au] PH: Aus [61] Perth (9) Local (380 3272).
_--_|\ N
Department of Psychology / \ W + E
University of Western Australia. Perth [32S, 116E]--> *_.--._/ S
Nedlands, 6009. PERTH, W.A. v

Joy is a Jaguar XJ6 with a flat battery, a blown oil seal and an unsympathetic
wife, 9km outside of a small remote town, 3:15am on a cold wet winters morning.
-------------------------------------------------------------------------------

brand...@condor.navsses.navy.mil

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Jun 9, 1995, 3:00:00 AM6/9/95
to
In article <NEWTNews.6996.80...@teleport.com>, mmah...@teleport.com writes:
> Awhile back, I got into an argument about Dis-engagable
> Superchargers. My friend says that it is impossible to dis-engage a
> Supercharger and have the motor still run, because the compression
> will be too low or something? Some of you might recall the V-8
> Intercepter in "MAD MAX" (The car Mel Gibson drove). If you noticed,
> he had a red pull switch on the stick shift which would engage the
> supercharger when he needed the extra compression to escape the Road
> Warriors :) Does something like this really exsist? If so, how much
> would a set up like that cost?


I can't give you any specifics, but I can tell you it is possible. Guys running
either Roots or Paxton superchargers can tell you that a thrown belt
(disengaging the compressor) does not render the car undriveable. Power is WAY
down, of course, because there is no boost and the air inlet now has the added
restriction of a dead blower, but the engine will run. Some blowers will also
auto-rotate; that is they will actually turn due to air being pulled past them
by the engine.

I believe some blower set-ups are equipped with a bypass valve that lets air
bypass the blower entirely when discharge pressure is LESS than suction
pressure - as you might have with a centrifugal blower at very low engine
speeds, or any blower when the belt breaks.

William Robert Goodman

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Jun 12, 1995, 3:00:00 AM6/12/95
to
In <3r4dq1$o...@ixnews5.ix.netcom.com> jh...@ix.netcom.com (J.A.Harvey ) writes:

>>
>Actually that is not true. While the clearances of the rotors are
>small, there is still enough room for air to pass. with the belt
>disengaged (as sometimes happens when a belt is thrown) the engine will
>continue to run, but make significantly less power. Dyers will tell you
>that you can drive at highway speeds with a thrown blower belt. There
>won't be a lot under your foot when you press on the pedal, but you
>will still be able to drive the car. (This does not apply to stripped
>rotors, and entirely different animal).

well you could put in a little flapper gizmo like on airplanes that
allows the motor to suck normal air if the turbo isnt turning or is
stopped up by ice or something.....(maybe a duck)

seems like what this guy really wants though is a controllable wastegate
that would have like a little red knob sticking out of the dash that he
could pull and instantly go from 75 to 350 hp.

Bob


bn...@ixo.com

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Jun 12, 1995, 3:00:00 AM6/12/95
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In article <3r4dq1$o...@ixnews5.ix.netcom.com>, <jh...@ix.netcom.com> writes:
> Xref: ngc rec.autos.tech:68134 rec.autos.rod-n-custom:9938
> Path:
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> From: jh...@ix.netcom.com (J.A.Harvey )
> Newsgroups: rec.autos.tech,rec.autos.rod-n-custom
> Subject: Re: Dis-engagable Superchargers???
> Date: 7 Jun 1995 14:41:05 GMT
> Organization: Netcom
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>
> In <D9rpp...@ngc.com> bry...@ngc.com writes:
> >
>
> >
> >
> >Boy OH BOY!!
> >
> >Isn't ignorance bliss!!!
> >
> >Well let's look at it like this. If you had a supercharger and the
> rotors
> >weren't turning and the clearences between them are very small - THE
> >MOTOR WOULDN"T GET ANY AIR!!!!!
> >
> >Thus you can't disengage superchargers and have them still sit
> >atop the motor!!!
> >
> >Lesson learned.
> >
> >Next,
> >
> >bry...@ngc.com
> >
> Actually that is not true. While the clearances of the rotors are
> small, there is still enough room for air to pass. with the belt
> disengaged (as sometimes happens when a belt is thrown) the engine will
> continue to run, but make significantly less power. Dyers will tell you
> that you can drive at highway speeds with a thrown blower belt. There
> won't be a lot under your foot when you press on the pedal, but you
> will still be able to drive the car. (This does not apply to stripped
> rotors, and entirely different animal).
>
> Another lesson learned
>
> Jim (HARVEY RACING)
> http://www.wp.com/HarveyRacing
> <jh...@ix.netcom.com>
>
> ------Specializing in Alcohol & Nitro Engines for Drag Racing----------
>

Listen HARVEY,

Why don't you plunk a B&M blower or a 671 for that matter on
any motor and I will personnally cut the drive belt and you
can sit there for hours trying to start the motor.

LEARN THIS.

SERIOUS FLAMAGE!!!

now go sell your chevy crap!

bn...@ixo.com


Copeland

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Jun 12, 1995, 3:00:00 AM6/12/95
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In article <DA2oH...@ngc.com>, bn...@ixo.com says...
>
>Mime-Version: 1.0
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>
>
>In article <3r4dq1$o...@ixnews5.ix.netcom.com>, <jh...@ix.netcom.com> writes:
>> Xref: ngc rec.autos.tech:68134 rec.autos.rod-n-custom:9938
>> Path:
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n.an
>s.net!ix.netcom.com!netnews
>> >Boy OH BOY!!
>> >
>> >Isn't ignorance bliss!!!
>> >
>> >Well let's look at it like this. If you had a supercharger and the
>> rotors
>> >weren't turning and the clearences between them are very small - THE
>> >MOTOR WOULDN"T GET ANY AIR!!!!!
>> >
>> >Thus you can't disengage superchargers and have them still sit
>> >atop the motor!!!
>> >
>> >Lesson learned.
>>
>> Actually that is not true.
>
>Listen HARVEY,
>
>Why don't you plunk a B&M blower or a 671 for that matter on
>any motor and I will personnally cut the drive belt and you
>can sit there for hours trying to start the motor.
>
>LEARN THIS.
>SERIOUS FLAMAGE!!!

Wrong.

Pickup up "Street Supercharging" by Pat Ganahl at your local
book store. States the above can be done with no problem.

Walter A. Koziarz

unread,
Jun 13, 1995, 3:00:00 AM6/13/95
to
In article <DA2oH...@ngc.com> bn...@ixo.com writes:

>In article <3r4dq1$o...@ixnews5.ix.netcom.com>, <jh...@ix.netcom.com> writes:

[ some of the attributions appeared screwed-up... rather than aggravate anyone,
I deleted all but the last two... the author of the portions preceded by the
'>> >' combination may or may not be 'bry...@ngc.com'
Walt K. ]


>> >Boy OH BOY!!

>> >Isn't ignorance bliss!!!

I ask again -- well, *IS* it?

>> >Well let's look at it like this. If you had a supercharger and the
>> rotors
>> >weren't turning and the clearences between them are very small - THE
>> >MOTOR WOULDN"T GET ANY AIR!!!!!

>> >Thus you can't disengage superchargers and have them still sit
>> >atop the motor!!!

and again I call your attention to the [mechanically-driven-] supercharged
Toyota MR-2...

>> >Lesson learned.

apparently not, or I wouldn't be still teaching...

>> >Next,

>> >bry...@ngc.com

>> Actually that is not true. While the clearances of the rotors are
>> small, there is still enough room for air to pass. with the belt
>> disengaged (as sometimes happens when a belt is thrown) the engine will
>> continue to run, but make significantly less power. Dyers will tell you
>> that you can drive at highway speeds with a thrown blower belt. There
>> won't be a lot under your foot when you press on the pedal, but you
>> will still be able to drive the car. (This does not apply to stripped
>> rotors, and entirely different animal).

>> Another lesson learned

>> Jim (HARVEY RACING)

>Listen HARVEY,

>Why don't you plunk a B&M blower or a 671 for that matter on
>any motor and I will personnally cut the drive belt and you
>can sit there for hours trying to start the motor.

no problem... Toyota showed anyone that's interested how it can be done...
study the MR-2 and learn...

>LEARN THIS.

yes, see above...

>SERIOUS FLAMAGE!!!

shall follow, if necessary...

>now go sell your chevy crap!

uncalled-for and contributes nothing to your credibility

>bn...@ixo.com

Walt K.

--
test-sig


George Taylor

unread,
Jun 13, 1995, 3:00:00 AM6/13/95
to
wgoo...@acenet.auburn.edu (William Robert Goodman) wrote:

>In <3r4dq1$o...@ixnews5.ix.netcom.com> jh...@ix.netcom.com (J.A.Harvey ) writes:

>>>
>>Actually that is not true. While the clearances of the rotors are
>>small, there is still enough room for air to pass. with the belt
>>disengaged (as sometimes happens when a belt is thrown) the engine will
>>continue to run, but make significantly less power. Dyers will tell you
>>that you can drive at highway speeds with a thrown blower belt. There
>>won't be a lot under your foot when you press on the pedal, but you
>>will still be able to drive the car. (This does not apply to stripped
>>rotors, and entirely different animal).

>well you could put in a little flapper gizmo like on airplanes that

>allows the motor to suck normal air if the turbo isnt turning or is
>stopped up by ice or something.....(maybe a duck)

>seems like what this guy really wants though is a controllable wastegate
>that would have like a little red knob sticking out of the dash that he
>could pull and instantly go from 75 to 350 hp.

>Bob

Sounds like someone saw Mad Max!


J.A.Harvey

unread,
Jun 14, 1995, 3:00:00 AM6/14/95
to
koz...@nosc.mil (Walter A. Koziarz) wrote:


>yes, see above...

>>SERIOUS FLAMAGE!!!

>shall follow, if necessary...

>>now go sell your chevy crap!

>uncalled-for and contributes nothing to your credibility

>>bn...@ixo.com

>Walt K.

Well Walt (and all the other people who explained nicely to the young
fellow with the original question)

It just goes to show that there are some people who are incapable of
learning anything, due to their limited intelligence and/or their
inability to accept the fact that they don't know everything. It must
be hard to accept a FACT that goes against your THEORY. But when your
entire experience with high performance engines consists of waiting by
the mailbox for the next issue of Car Craft to arrive, it is easier to
understand.
One day bn...@ixo.com will get his drivers license and we can then
teach him that which he thinks he knows. :^)
------------------- Jim (HARVEY RACING) ------------------------------
<jh...@ix.netcom.com> http://www.wp.com/HarveyRacing

Linton Smith

unread,
Jun 23, 1995, 3:00:00 AM6/23/95
to
In article 9...@ngc.com, bn...@ixo.com () writes:
>
>In article <3r4dq1$o...@ixnews5.ix.netcom.com>, <jh...@ix.netcom.com> writes:
>> Xref: ngc rec.autos.tech:68134 rec.autos.rod-n-custom:9938
>> Path:
>ngc!ngc.com!nntp-hub2.barrnet.net!venus.sun.com!cs.utexas.edu!howland.reston.an
>s.net!ix.netcom.com!netnews
>> From: jh...@ix.netcom.com (J.A.Harvey )
>> Newsgroups: rec.autos.tech,rec.autos.rod-n-custom
>> Subject: Re: Dis-engagable Superchargers???
>> Date: 7 Jun 1995 14:41:05 GMT
>> Organization: Netcom
>> Lines: 40
>> Distribution: world
>> Message-ID: <3r4dq1$o...@ixnews5.ix.netcom.com>
>> References: <NEWTNews.6996.80...@teleport.com>
><D9rpp...@ngc.com>
>> NNTP-Posting-Host: ix-li4-09.ix.netcom.com
>>
>> In <D9rpp...@ngc.com> bry...@ngc.com writes:
>> >
>>
>> >
>> >
>> >Boy OH BOY!!
>> >
>> >Isn't ignorance bliss!!!
>> >
>> >Well let's look at it like this. If you had a supercharger and the
>> rotors
>> >weren't turning and the clearences between them are very small - THE
>> >MOTOR WOULDN"T GET ANY AIR!!!!!
>> >
>> >Thus you can't disengage superchargers and have them still sit
>> >atop the motor!!!
>> >
>> >Lesson learned.
>> >
>> >Next,
>> >
>> >bry...@ngc.com
>> >
>> Actually that is not true. While the clearances of the rotors are
>> small, there is still enough room for air to pass. with the belt
>> disengaged (as sometimes happens when a belt is thrown) the engine will
>> continue to run, but make significantly less power. Dyers will tell you
>> that you can drive at highway speeds with a thrown blower belt. There
>> won't be a lot under your foot when you press on the pedal, but you
>> will still be able to drive the car. (This does not apply to stripped
>> rotors, and entirely different animal).
>>
>> Another lesson learned
>>
>> Jim (HARVEY RACING)
>> http://www.wp.com/HarveyRacing
>> <jh...@ix.netcom.com>
>>
>> ------Specializing in Alcohol & Nitro Engines for Drag Racing----------

>>
>
>Listen HARVEY,
>
>Why don't you plunk a B&M blower or a 671 for that matter on
>any motor and I will personnally cut the drive belt and you
>can sit there for hours trying to start the motor.
>
>LEARN THIS.
>
>SERIOUS FLAMAGE!!!

>
>now go sell your chevy crap!
>
>bn...@ixo.com
>

I'm amazed that this thread is still going but what really amazes me is the fact that
when someone offers reasonable advice/experiences as done by messrs bryan and jim
arseholes like "bned" come along with all of the intellect that their postings display
and flame someone for trying to help. I dont give a shit what someone drives or sells,
or what their honest opinions are. But when types like bned get on the 'net...

NUFF SAID.

To the reasonable ones out their: apologies for the bitchin'

Drive Fast and Enjoy

Linton

ps At least the intelligent people can and do sign their names ;)

---

End Of Message

beckwi...@gmail.com

unread,
Sep 10, 2016, 7:22:13 PM9/10/16
to
Yes actually in the early days they did have dis-engagable superchargers. Google Mercedes 10/40/65 it made 40 horse without the supercharge engaged and when you engage it it would make 65 horsepower
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