1969 Chrysler Master Tech Performance Tuning Film
Watch this 1969 Chrysler Master Tech Performance Tuning Film.
A film to instruct Chrysler Master Techs on how to improve the power and performance of the Chrysler engines.
Posted on YouTube By: MyMopar. com
Video Transcript
00:13
this month’s session is going to cover a
00:16
lot of ground we’re going to talk about
00:18
servicing performance cars and
00:20
performance engines available in
00:22
Chrysler Corporation cars up till just
00:26
recently servicing high-performance cars
00:29
has been abroad highly specialized and
00:32
extremely technical subject the reason
00:35
for this was that very few factory built
00:38
performance cars were available and most
00:41
cars were modified and made into
00:43
performance cars after they left the
00:45
showroom naturally these cars were
00:48
serviced by the owners themselves or by
00:51
the few mechanics around town who
00:53
specialized in performance or hotrod
00:56
work however the performance car scene
01:00
has changed quite a bit the last couple
01:02
of years Chrysler Corporation has for
01:05
some time now offered a wide variety of
01:09
performance cars to the buying public
01:11
these buyers expect demand and should
01:15
get the same service as the other owners
01:19
some dealers appear to be reluctant or
01:22
not properly equipped to service and
01:25
advise owners of performance models I
01:28
hope that this session will fill you
01:30
master technicians in on what is
01:32
happening to the performance market why
01:35
performance service is becoming big
01:37
business and most important how to
01:41
service performance type cars at many
01:45
dealerships the picture is changing the
01:48
other day I attended a special meeting
01:50
at Scott motors concerning performance
01:52
mr. Scott the owner had asked the entire
01:55
dealership sales parts and service
01:58
departments to attend mr. Scott also
02:02
asked his performance expert Terry
02:04
marker to conduct this little seminar on
02:08
performance car super tuning and
02:10
modification for strip and maximum
02:13
street performance here’s what went on
02:16
that day in Scott
02:23
I’m glad that the sales and parts
02:26
departments are in attendance tonight
02:27
sales of performance cars affects the
02:30
entire dealership as much as the sale of
02:32
any other car when I’m through I’ll turn
02:36
the show over to Terry our performance
02:37
specialist first of all the 1969 model
02:42
year had the widest selection of youth
02:44
appeal cars and the biggest spread of
02:46
performance cars yet this year’s
02:48
performance car sales are approaching
02:51
20% of all sales now that’s a pretty
02:53
healthy chunk of any market and that’s
02:55
what this meeting is all about
02:57
performance cars let’s make a quick
03:00
rundown on the models that are easiest
03:02
to spot as performance cars now
03:04
generally these models cannot be bought
03:06
without a performance engine in the
03:09
dodge line the Charger r/t is probably
03:12
the best-known performance car in the
03:15
coronet models it’s the r/t and Super
03:17
Bee the little guys in the Dodge hive
03:20
are the dark GT sport and dart swinger
03:22
340 Plymouth offers the well-known
03:26
Roadrunner the GTX and the Mighty Mite
03:29
the Barracuda but that’s not all here’s
03:32
the lineup of what are considered
03:34
performance engines you’ll find one of
03:37
these in the performance models you just
03:38
saw of course if you run across one with
03:41
anything smaller than a 340 it’s not
03:44
considered a performance model on the
03:47
other hand these engines are offered as
03:49
options in some standard models so it
03:52
would be a good idea to acquaint
03:54
yourself with these engines so you can
03:56
spot them in the family grocery wagon
03:58
the 440s are standard equipment on some
04:02
full-size models to compensate for
04:04
weight power accessories and air
04:06
conditioning our sales force has been
04:10
well oriented in regards to performance
04:12
models and optional performance engines
04:14
we’re selling more performance cars
04:16
every day and buyers of performance cars
04:19
are paying a premium for their cars they
04:22
expect and demand the same if not more
04:25
service than other customers usually
04:28
performance enthusiasts are more full
04:31
and more influential than most other
04:33
customers owners of performance models
04:35
are more exacting and discriminating in
04:38
their demands than the average customer
04:40
it pays to satisfy their demands we’ve
04:43
found that satisfied owners of
04:45
performance cars favorably influence
04:48
prospects for both performance and
04:50
standard production models dissatisfied
04:53
owners can cost sales of both well I
04:58
think I’ve said about everything I can
04:59
on the subject of performance want to
05:01
take it from here Terry ok mr. Scott and
05:05
thanks for making my part of it a little
05:06
easier sometimes it’s easy to get
05:09
confused about what is and what isn’t
05:11
considered a performance car I guess the
05:13
whole problem really starts with the
05:15
word itself performance every car owner
05:18
wants good performance out of his car
05:20
that’s only natural
05:21
however the performance car owner
05:23
usually wants that little extra
05:25
something out of his machine and that
05:27
little something is maximum performance
05:29
every performance car we sell is
05:32
carefully tuned before delivery and
05:34
don’t get me wrong I’m not saying that
05:36
the car is delivered from the factory
05:37
will be running bad it’s just that
05:39
assembly line operations don’t lend
05:41
themselves to critical tuning
05:43
performance engines deserve starting
05:46
with the corporation make sure that all
05:48
air fuel adjustments are precise check
05:51
the manuals and service bulletins for
05:53
the specs and procedures you might want
05:55
to refer back to master tech session
05:58
number 69 9 it’s got all the latest dope
06:01
on four-barrel carb x’ check the float
06:04
level accelerator pump stroke idle speed
06:07
fuel mixture and on the ABS the
06:10
secondary air valve and the secondary
06:12
throttle opening sequence of course or
06:14
other adjustments but if you take care
06:16
of these you’ll be in pretty good shape
06:17
and when you’re sure the fuel situation
06:20
is right you better make sure there’s a
06:23
spark there at the right time for
06:25
ignition and proper combustion check the
06:27
distributor dwell and if necessary set
06:30
the contact gap check the ignition
06:33
timing to make sure that it is dead
06:35
right how about the plugs I was just
06:38
coming to that on performance cars we
06:41
check the plugs to make sure they’re the
06:43
right type and heat range
06:45
check the gap and adjust if necessary
06:47
and when you’re installing the plugs
06:50
make sure the gasket if required is
06:53
seated properly and always torque the
06:56
plugs to the correct specs this
06:59
eliminates the possibility of cracking
07:01
the insulator as a final precaution
07:04
check all ignition cables at both the
07:07
plugs and distributor cap make sure
07:10
they’re on tight when you connect them
07:12
what’s next are you
07:14
well tech there’s always the guy that
07:16
wants his car to run a little bit better
07:18
than the rest and still be as streetable
07:20
as Aunt Martha station wagon he can do
07:23
this with spending very little money and
07:25
the bare minimum of part changes we call
07:27
this little operation super tuning the
07:31
most obvious thing to do is try and get
07:33
more gas into the cylinders a couple of
07:35
thousands bigger jets of the first thing
07:37
to install then to go along with the
07:39
bigger jets change the accelerator pump
07:41
linkage to get a long stroke while
07:44
you’re at it make sure the float level
07:46
is at the maximum setting to let you
07:49
store the extra fuel that the big jets
07:51
and long pump stroke will need because
07:54
of the richer mixture you’ll need more
07:56
spark advance because a rich mixture
07:59
burns slower and must be ignited sooner
08:01
in addition to the extra advanced
08:04
low-speed torque and throttle response
08:06
can be improved by changing the slope of
08:09
the distributor advanced curve to rework
08:12
the advanced curve remove the heavier
08:14
governor spring and stretch the other
08:16
spring to give the desired curve be sure
08:20
to leave enough spring tension to
08:22
the advance while starting and in most
08:26
cases the full advance bead and make
08:34
sure the total advance is limited to 34
08:37
to 38 degrees if any technician isn’t
08:41
exactly sure about how to change the
08:43
curve the easiest thing to do is replace
08:45
the single point distributor with a dual
08:47
point system of course whichever you do
08:50
make sure to always use the best
08:52
Chrysler points available they’ll throw
08:55
a better and more consistent spark and
08:57
last a lot longer when too
08:58
ejected two high rpm running in the
09:01
sparkplug Department a slight change
09:03
will be necessary normally recommended
09:06
heat ranges will be adequate but if the
09:08
owner plans on extensive high rpm
09:10
operation it’ll be necessary to go one
09:13
or two steps colder on the plugs just to
09:16
make sure that spark reaches the plug at
09:18
full power
09:19
I’d suggest installing solid wire
09:21
ignition cables from the distributor to
09:23
the plugs the only thing is when you
09:26
install solid wire cables always install
09:29
resistor plugs along with them if you
09:32
don’t your customer may be unhappy
09:34
because of radio interference from the
09:36
cables that should take care of the
09:39
ignition for the final touch why are
09:42
open or eliminate the manifold heat
09:44
control valve again ask the customer if
09:48
this is acceptable to him remind him
09:50
that the warm-up performance will be a
09:52
little rougher and complete warm-up will
09:54
take a little longer that wraps up the
09:57
subject of super tuning performance cars
09:59
I want to mention at this point that
10:02
customers should be informed of possible
10:04
warranty restrictions connected with
10:06
modifications for racing I think the
10:09
next area that Terry is going to cover
10:11
pertains to this subject so why don’t we
10:13
see what he has to say I think we’ve
10:16
turned enough rpms to finish this side
10:19
of the record
10:20
well someone please turn it modification
10:25
for maximum street or drag strip
10:26
performance it’s a pretty large topic to
10:29
discuss a lot of things you can do to a
10:31
performance car without even getting
10:33
into the heads or block but before we
10:35
get into that mister Scott mentioned
10:38
warranty and I mentioned drag strip so
10:41
let’s clear that up right now you better
10:44
tell your customers just like it is for
10:47
all practical purposes racing or
10:49
participation and other competitive
10:51
speed events voids the warranty when it
10:55
comes to modifications unauthorized
10:58
alterations or use of parts or material
11:00
not approved by Chrysler Corporation
11:02
will also void the warranty but that
11:06
doesn’t mean there aren’t plenty of
11:07
authorized adjustments and approved
11:09
parts goodies available for the customer
11:11
that
11:12
some customized performance service so
11:14
let’s get back to the performance back
11:17
if they haven’t been done before all of
11:20
the procedures for super tuning must be
11:23
done along with the strip modifications
11:25
just like any hard playing athlete needs
11:28
its Wheaties
11:29
a performance engine must be fed right
11:31
if it’s gonna run hard let’s take a look
11:35
at fuel induction and see what can be
11:37
done to improve it on performance cars
11:40
flooding and vapor lock can be prevented
11:42
by installing the correct fuel pressure
11:45
regulator in the fuel delivery system if
11:48
the car doesn’t already have one
11:50
installing an unsilenced air cleaner
11:52
will improve the breathing the other
11:55
alternative is to install a hot rod or
11:58
bonnet type air cleaner approved by
12:00
Chrysler but remember the extra air
12:03
coming in is going to affect the air
12:06
fuel mixture always reset the idle speed
12:09
and fuel mixture after installing a
12:11
different air cleaner if you want to
12:13
modify the stock system several intake
12:17
manifold and carburetor combinations are
12:19
readily available that can increase
12:21
performance depending on which system
12:23
the particular engine is equipped with
12:25
let’s see what’s available for best
12:28
results over the entire rpm range use
12:31
the Edelbrock
12:32
single quad high-rise manifold for the
12:36
340 engines use a Holley 700 CFM
12:39
carburetor for the other engines use the
12:42
Holley 780 CFM carb if a 440 is equipped
12:47
with a Carter abs increased performance
12:49
is easily obtained by changing to a
12:51
Carter AFB or Holley 850 CFM job for
12:55
engine speeds up to 5,000 rpm for best
12:59
performance above the 4000 rpm range use
13:02
the factory dual quad intake mounting
13:04
with the Carter AFB carburetors if you
13:07
use the dual quad setup bake like
13:10
spacers should be used between the
13:12
carburetors and manifold to eliminate
13:14
heat buildup in the float bowls if the
13:17
spacers are not available use a stack of
13:19
five or six carburetor mounting gasket
13:21
that takes care of the fuel department
13:24
the next thing is to make sure you have
13:27
the spark to ignite the fuel charge if
13:29
the car is to be used primarily for drag
13:32
racing install the Superstock
13:34
transistorized ignition if you use the
13:37
transistorized ignition you should
13:39
install the Hemi Super Stock points also
13:42
now these points are shorter lighter and
13:46
will run at much higher speeds without
13:48
encountering point bounce but be careful
13:50
these points are designed for the
13:52
transistorized ignition they must not be
13:55
used with the standard ignition system
13:59
for street use with the transistorized
14:01
ignition the standard recommended plug
14:04
should be used but if you plan on
14:06
extensive high rpm operation or drag
14:09
racing you should use plugs that are one
14:12
or two steps Coulter there’s a few more
14:15
things you can do under the hood to
14:16
improve performance the stock cooling
14:19
system is adequate to keep operating
14:20
temperatures to excepted levels however
14:23
some components can be changed to reduce
14:26
power losses in the system the torque
14:29
control drive fan can be installed in
14:31
place of the stock fan you should also
14:33
replace the water pump impeller with the
14:36
one used with air conditioning this
14:38
impeller has a smaller diameter and
14:40
offers less resistance to really keep
14:43
cool a maximum cooling high-performance
14:46
radiator and seven blade torque drive
14:48
fan can be installed if the car is not
14:50
so equipped that’s about all we have
14:53
time to cover on super tuning and
14:55
competition modification incidentally
14:58
there’s one setup that you should be on
15:00
the lookout for you may not have seen
15:02
any yet but they’re selling like
15:04
hotcakes and it won’t be too long before
15:06
you see one in for service I’m talking
15:09
about the three two-barrel setup
15:11
available on the 440 engines the service
15:14
manuals have printed long before the
15:16
three two barrels were available so they
15:18
won’t have any service procedures for
15:20
the holley two barrels a service
15:22
bulletin has been issued on the system
15:24
but let’s review it just the same now
15:26
here’s how it works
15:27
the 2n carburetors don’t have the usual
15:30
choke power enrichment idle and spark
15:33
advance systems each carburetor is
15:36
equipped with a throttle control vacuum
15:38
diaphragm
15:39
this diaphragm is the same as on the
15:41
four barrels and requires no service the
15:45
2n carburetors are connected to the
15:47
center carburetors slotted throttle
15:49
lever by two adjustable connector rods
15:51
the slotted throttle lever of the center
15:54
carb allows the throttle valves to open
15:56
on the end carburetors as vacuum
15:59
requires and close mechanically with the
16:01
controlling center carburetor basically
16:04
the center curve on the three two-barrel
16:06
system is the same as the primary side
16:09
of the four-barrel carburetor the end
16:11
carburetors are the same as the
16:13
secondary portion of the four barrels so
16:15
don’t let them throw you when you have
16:17
to service them the basic adjustments
16:20
are the same with the exception of the
16:22
specifications check the service
16:25
bulletins when making any adjustment the
16:27
N throttle valves must be synchronized
16:29
with a center throttle valve this is
16:32
another adjustment that may be a little
16:34
strange to you I’m going to run through
16:36
it although you may have studied your
16:38
bullets and carefully it’s done this way
16:40
if the adjustment is to be done on the
16:43
vehicle be sure the ignition switch is
16:45
off this D energizes the fast idle
16:48
solenoid so that clearance is obtained
16:51
between the plunger and fast idle
16:52
adjusting screw remove the air cleaner
16:55
then remove the in carburetor throttle
16:58
connector rod clips and disengage the
17:00
front and rear rods from the throttle
17:02
levers close the throttle valves on all
17:06
three carbs and hold in the closed
17:08
position shorten or lengthen the front
17:11
and rear connector rods by turning in or
17:14
out in the threaded sleeve adjust until
17:18
the rod can enter the hole in the
17:20
throttle lever evenly after installing
17:23
the throttle connector rod and the end
17:25
carburetor throttle levers secure with
17:27
spring clips readjust idle speed to 900
17:31
RPM for automatics and 1000 RPM for
17:35
manual transmissions checking the wet
17:38
fuel level on the Holley 2 barrel is
17:40
slightly different than the four-barrel
17:42
before checking the wet fuel level check
17:45
the fuel pump pressure to be certain
17:47
that a 5-pound reading is obtained
17:50
start the engine and remove the site
17:52
plug from each carburetor using a wrench
17:55
and screwdriver turn the adjusting nut
17:57
either up or down until fuel just
18:00
dribbles out of the sight hole reinstall
18:03
the sight plugs and gaskets and tighten
18:06
securely let me suggest something at
18:08
this point it’s a good idea to place a
18:11
container under the bowl before removing
18:14
plugs to catch any fuel that might run
18:17
out due to a high or improper previous
18:20
setting here’s a final reminder if
18:22
you’re reassembling or installing a new
18:25
part make sure that the parts have been
18:27
thoroughly clean and are kept as clean
18:29
as possible while you’re installing them
18:32
another thing observe all factory torque
18:35
specs for all fasteners and also follow
18:37
the factory tightening sequence if there
18:39
is one well that’s about it I hope that
18:43
this little get-together has been
18:44
informative to all of you I know there’s
18:46
a lot we didn’t cover but maybe sometime
18:49
in the future we’ll pick up and cover
18:50
some of the internal and driveline
18:52
modifications and remember our factory
18:56
service rep has been very helpful to us
18:58
with any performance questions we’ve
18:59
come up with if you have any questions
19:02
right now I’ll try to answer as many as
19:04
I can
19:05
why don’t we have a coffee break first
19:07
and then we’ll well guys that’s how
19:12
Scott motors is handling the big
19:14
performance push I found it pretty
19:16
informative truth is when I left that
19:20
guy – felt a little bit out of it yes
19:22
like most people I just wasn’t aware how
19:25
big performance is getting you bastard
19:28
technicians are also going to have to
19:30
practice a little bit more customer
19:32
relations with owners of performance
19:34
cars most of them like to stand by while
19:37
the work is being done rather than drink
19:40
coffee in the waiting lounge
19:42
you may also have to suffer through a
19:44
little extra conversation and possibly
19:46
some volunteer diagnosis but in turn
19:49
you’ll have a steady customer and
19:51
possibly some referrals to other
19:53
performance owners and remember these
19:57
owners have paid a premium for the
19:59
performance features on their car and
20:02
all they ask is to feel a deference for
20:05
the period they owned the car I see
20:08
we’re just about out of time so I’ll
20:09
have to wrap this session up but before
20:12
I split I’ll throw in the usual reminder
20:15
to read your reference book thoroughly
20:17
it contains some info we didn’t have
20:20
time to cover in some performance specs
20:22
which will be plenty helpful see you at
20:25
the next session you’ll get the lowdown
20:27
on service features for the 70s
