Subject: Rustpuppy
Test&Tune 15
Date: Saturday,
April 21, 2001 11:10 PM
When
Rustpuppy was in the shop last week I had Brett do a baseline check on the
front wheel alignment. I had been
fooling with the camber on the left front wheel with my crude setup and needed
a course correction.. Also I
have completely lost confidence in the guy who did the last complete wheel
alignment on Rustpuppy just before I bought her back in 1994..
It was
good to get accurate data. I had
the toe set at zero and the camber on the right was perfect at 0 degrees. I knew I still had too much
positive camber on the left and it measured 0.6 degrees.
I have
no way of measuring caster in the yard so I really needed those numbers. Turns out that the idiot who set the
wheel alignment (the one I lost confidence in on another matter) screwed up the
caster on both wheels. Rustpuppy
never had the directional stability I would have liked and it made things dicey
at speed.. Easy to see why. The moron had the caster set
negative instead of positive..
Duhhh..
Left
front was -0.8 degrees and right front -1.0 degrees..
Armed
with that data and after taking measurements of the suspension and working up a
CAD drawing showing the relationship between the shims and the caster settings
I slammed a bunch of positive caster in to the system.
Now it
is this: (according to my
calculations.. will have
Brett check it again to verify)
Left
front +1.43 degrees Right front
+1.23 degrees...
I took
Rustpuppy to town this morning (urgent Vista Cruiser business) after setting
the alignment and am very happy with the steady way she tracks now.. A real serious improvement and a much
more relaxing car to drive at speed now..
Attached
are a couple pictures of the after state of the shims..
Rick
Draganowski
(positive
caster is good, very good...)
Subject: Rustpuppy Test&Tune 16
Date: Saturday,
April 21, 2001 11:38 PM
It is
time to tear into the rear axle to verify backlash and tooth contact
patch.. I am getting used to
jacking ol’ Rustpuppy up every couple of days.. (t&t16-1,jpg)
The axle
was still hot from the trip so the lube came out really thin and runny.. I was suprised.. It was a clear amber color but still
had that really nasty smell.. (I think it is the extreme pressure additives for
the hypoid gears) I have always
detested the smell of the hypoid lube..
I got my
sensitive dial indicator set up and it showed the backlash at between
0.0085 and 0.009... Hmmm... That seems about right but I do not know what
the spec from Richmond is..
(t&t16-2.jpg)
Then I
painted about 8 drive side teeth with the GM marking grease I borrowed from
Scott at NAPA last Friday..
After turning them through the mesh they came out looking pretty good to
me.. (t&t16-3.jpg)
So with
the backlash looking good and the tooth contact good the last thing is to use
the heavy duty lube.. You
can see the difference between the ordinary and the heavy duty stuff.. It even says for racing on the
back of the bottle.. The Valvoline
stuff.. (t&t16-4.jpg)
Whatever
whining is left after switching to the heavy lube is just going to be something
to get used to..
More to
come..
Rick
Draganowski
(wait till
you see what I am doing to the axle cover..)
Subject: Rustpuppy Test&Tune 17
Date: Saturday,
April 21, 2001 11:55 PM
After
seeing what Ray done to the Gray Ghost’s axle I felt compelled to go back to my
original plan on Rustpuppy’s axle.
There
was a little bit of tiny steel filings from the break in wear stuck on the
magnet inside the cover. I cleaned
it all off.. (t&t17-1.jpg)
I took
my 4” angle grinder with the flap disc and cleaned the paint and stuff off of
the outside of the cover to get ready for a coat of the self etching
primer. (t&t17-2.jpg)
Then the
primer went on smoothly.. (t&t17-3.jpg)
I
decided to paint the cover the reddest red I could find. “Tractor Red” a Federal safety color is
what it is going to be..
(t&t17-4.jpg)
And
after two coats of the really red paint it came out like this..
(t&t17-5.jpg)
More to
come.. Tomorrow...
Rick
Draganowski
(thought
about a 4 inch yellow smiley face in the middle but decided against it..)
Subject: Rustpuppy Test&Tune 18
Date: Sunday,
April 22, 2001 7:25 PM
As you
know the story was left with the axle open and the bright red cover paint
drying.. Today I wanted to
sleep in (weather is changing again and I am feeling poorly) but was up bright
eyed and bushy tailed at 8am..
Damn, didn’t get to sleep till 3am..
But I
threw my creaking old bod into the battle.. I ran the gear pattern stuff through the mesh again to see
if it would make a clearer print.
It did and the print looks perfect, biased toward the toe and balanced
just like Richmond sez.. And
the backlash spec for the Richmond gears is 0.008 plus or minus 0.004.. (seems like a big tolerance to
me) Anyway the 0.0085 to 0.009 is
just a scoshie on the loose side of perfect.. Just right in my opinion..
The big
chore was getting the heavy 145 gear oil into the axle while it is hanging
under the car.. No way
to just squirt it in from the bottle like last time cause the tailpipe is in
the way. So I had to get my oil
suction gun out and slowly fill it and slowly empty it a pint at a time into
the axle. Like watching the minute
hand of a clock while getting cramps in your arms while laying under a 26 year
old car with your legs sticking out into the drizzling rain.. And the stink of the hypoid
oil burning your eyes and making you sick to your stomach..
In other
words.. It was great fun..
It all
came together and finished up..
I then
loosened the emergency brake cable because the rear shoes were dragging just a
little .. (every little trick
helps when you are racing)
Testing
the vibration problems while Rustpuppy was still jacked up was the next
trick.. I was running
her to over 100mph while standing still..
Very strange business..
The vibration from the driveshaft was bad at 2500-3000 rpm but
unbelievably bad at 5000 rpm and up...
I really got to get that fixed in a hurry.. I am worried that I could be screwing up the tailshaft
bushing..
Then I
checked the wobbling rear wheels..
Turns out there is some kind of compatibility problem with the 76 stock
rim lugnuts and the later rallye wheels provided by Rob Roberson.. Some bad Roberson mojo is
creeping into Rustpuppy.. Is there come kind of “Metric Curse” showing up in the Disco Novas??
No
pictures for this letter but I do have a fun sound file I made last week when I
was complaining about the slow 1-2 shift in Rustpuppy’s new transmission. I sent this file to Wade and he said
that it is just the way he wanted it set up..
Notice
that there is considerable wheelspin at launch.. I am shifting at 6000rpm. Funny when actually doing the racing stuff your attention
runs so fast that everything seems to happen in slow motion. I could swear that the 1-2 shift was a
long lazy thing but listen to the reality.. It is really pretty brisk..
On a sad
note I was full of bologna in my mistaken belief that Goody was still at 28
degrees total advance..
In the excitement of getting into the mid 14’s I must have done a little
tweaking and forgot to report it..
When I
looked at the timing today I found
that it was sitting at 34 degrees total advance with 12 degrees initial. Bummer..
What do
you all think the ideal total advance should be for Goody? It has about 9 to one
compression, ported and milled Goodwrench heads, XE268 cam, a pretty good Q-jet
on a Performer manifold, and 2 ½” exhaust from DynoMax full length headers
going through Super Turbo mufflers..
More to
come..
Rick
Draganowski
(worried
about my lugnuts..)
Subject: [nova] Timing numbers from the
misty past..
Date: Sunday,
April 22, 2001 9:44 PM
As I
said earlier I have the old distributor in Goody set for 12 initial 34
total.. Thinking about it
that seems familiar.. I ran
across this old post (now in the Flat Cam Project on the Rustpuppy webpage)
about timing in Knocker..
It seems like my old brain runs in familiar grooves...
When I
can start testing again I am going to increase it 2 degrees at a time to see
where the best setting is..
Rick
Draganowski
(might be 36
or even 38..)
Date: Sunday,
September 19, 1999 9:29 PM
Part two
of my indoor Nova work was on the old HEI that originally came on my junked 77
pickup.. (170,000 miles on it and it is still happy) The vacuum advance is a 15 degree truck job with a heavy
spring and I cut up a bit of vacuum hose to limit it to only 10 degrees total.
(I am
saving the fancy Polished Proform with the neato Accel adjustable vacuum
advance and the see through cap for the 400)
Then I
pulled the stock heavy springs off the centrifugal advance and replaced them with
the middle springs out of a Moroso HEI Advance Curve Kit (the silver
jobs). I left the heavy stock
weights on and did not limit the centrifugal advance (it is only about 22 crank
degrees so I should be OK).
Testing
will tell and with a good cam Rustpuppys motor will be happy and not need a lot
of initial advance (more like a real small block). I figure about 12 static (34 total) and 10 degrees of
vacuum advance should do it right..
Time
will tell..
More to
come..
Rick
Draganowski”
Subject: Rustpuppy Test&Tune 19
Date: Monday,
April 23, 2001 10:39 PM
With the
sunshine today I managed to get a reasonable picture of the new looks of
Rustpuppy’s rear axle.
(t&t19-1.jpg)
The
order of business today was the lugnut problem. I had important and stressful business in town today so I
got a chance to get some upgraded lugnuts that would be compatible with the
rallye wheels.
I tested
the big lugnuts by putting magic marker on the taper seat of one and installing
it to the proper torque. The
mating area was cleaned off.
(t&t19-2.jpg, sorry for the focus problem , the autofocus computer
in the videocam focused on the rulebook by mistake)
There
was only 8 of them available in Gold Beach so Rustpuppy will have to live with
two if the teeny lugnuts till the order comes in. (t&t19-3.jpg)
The
leftover teeny nuts were rounded up and photographed to show the strange
seating pattern and galling around the tops.. (t&t19-4.jpg)
It looks
like the big acorn lugnuts are the solution to the problem.. I probably will get a set for the
front wheels too so all the lug nuts will be 13/16” instead of half 13/16” and
half ¾”..
I also
got a great picture showing a little bit of the attitude that the Rustpuppy has
these days..
(t&t19-5.jpg... check
this out Ben..)
Rick
Draganowski
(attitude is
good)
Subject: Rustpuppy Test&Tune 20
Date: Tuesday,
May 01, 2001 9:27 PM
As you
recall from my last report I must get the driveline in Rustpuppy fixed before
there are more serious racing efforts.. Out of the kindness of his heart Chad Dingfelder from
Michigan sent the spare driveshaft from his 70. I was disappointed at first from the amount of rust. (t&t20-1,jpg and
t&t20-2.jpg UPS always ships
long things standing on end..
poked out the box)
The slip
yoke was gone but the tube despite it’s rust was sound. Most excellent as I found out
that the major problem with the existing drivetrain was bent ears on the tube.. I had another slip yoke on which
I spent several hours polishing out the surface rust. So it looks like I may have the bits needed to get a proper
driveline into Rustpuppy.
I had
the u-joints pressed out in a jiffy and spent quite a while cleaning up the
bores on the tube.. Note the grove cleaning tool made from
an old snap ring. (t&t20-3.jpg)
Then it
was time for the slow job of grinding off the rust.. (nasty stuff from the road salt I bet) After what seemed like hours it
was finished.. All bare steel..
(t&t20-4.jpg and t&t20-5.jpg)
Then two
coats of the self etching primer from NAPA followed.. (note I have the bearing bores masked) (t&t20-6.jpg) Note the fan to blow the
overspray away from where I was breathing. It is much better for you to not inhale that stuff..
I had painted
the vibrating dog of a driveline a conservative black so I decided on the
brilliant Tractor Red for this perfect one.. (I hope..) (t&t20-7.jpg)
So part
one of the Driveline Madness draws to a close.. Part two soon, with test reports, seat time, and bad
behavior..
Rick
Draganowski
(it
should be a felony to contaminate roads with salt..)
Subject: Rustpuppy Test&Tune 21
Date: Tuesday,
May 01, 2001 10:05 PM
Still in
the middle of Drivetrain Madness I really worked on the rusty slip yoke I
obtained with the driveshaft tube which is bent and useless. T&t21-1.jpg shows it still soaking
in the ATF while I spent what seems like days cleaning up the tube. It was a whole day..
T&t21-2.jpg shows the slip yoke after much polishing of the bearing bores and the output shaft bushing journal..
By
comparision the Michigan slip yoke could only clean up this much.. (t&t21-3.jpg)
The slip
yoke had to have the inner corners of the ears ground down to allow the HD
Federal Mogul u-joint to be mounted but could not accomodate the super HD
Spicer joint I used in the rear of the driveshaft. Oh well, Goody is less than 400 lb ft of torque.. (t&t21-4.jpg)
Then
working slowly and carefully I pressed the new u-joints in position making sure
that they were free and well lubed.. (t&t21-5.jpg and t&t21-6.jpg)
First
thing today I installed the newly rebuilt drivetrain.. For some reason the amount
of slip yoke showing on Rustpuppy seems excessive to me.
(t&t21-7.jpg)
It is a little over 1 ½”.. There is 2” inside the seal but
it still
seems wrong. I wonder if the
spring mounts can be pried forward
the extra ½”?
I will look into this issue later.
Then it was time for a road test! Seat time!
Excellent!.. I
could
sense
that the drivetrain was smoother but could not really tell until I got out on
the highway.
Sucess!
.. Most of the incredible
vibration was gone!
I
quickly thought of an excuse for a trip to town to give Rustpuppy a proper
workout and get some gas too.. I stopped by at Central and gave Brett some
trouble about the drivetrain and made arrangements to get the B&M shift
improver stage II kit installed.
I am taking my tall stool down so that I can sit and watch every move
and be sure of a proper job. I am
getting paranoid about my Rustpuppy..
Then I
went for a fillup of 92 octane..
The kid at the Texaco station was all worked up about seeing Rustpuppy
and made some nice comments on the name graphics. I asked him if he thought I would get busted if
I left some Rustpuppy tracks on his asphalt.. He said he doubted it as he digs out in his truck all
the time.. So when it came
time to leave I had Rustpuppy leave two 20 foot puppy tracks on the station
apron. Then I motored off
slowly like a law abiding citizen..
The
onshore crosswind was gusting to 45mph so there was no fooling around on the
way home.. It is good to
make progress..
More to
come..
Rick
Draganowski
Subject: Rustpuppy Test&Tune 22
Date: Wednesday,
May 02, 2001 7:34 PM
Beautiful
sunny 65 degree day..
But.. The offshore
wind gusts are still hitting almost 50mph.. No serious fooling around on today’s seat time.. But..
I did
mess with some 0-60 times on the sheltered old road.. Not the best traction but still fun.
I
digress.. I double checked
Brett’s filling of the new transmission and found it about a quart low... Hmmm.. My confidence in this guy is really taking a beating. Especially since I had a discussion
with my postman Tom about Brett’s reputation yesterday.. Not good.. He seems to be an animal on
drivetrain and suspension work..
Oh, well... I can
always go crawling back to Tim Harding and get put on his interminable waiting
list.. (Tim came in second
in the World Cup Whitewater Jetboat competition last spring in the unlimited
class..)
Back to
the 0-60 stories.. On the first
attempt southbound I was taken totally by surprise by the lack of any
wheelspin.. I must have started on
an extra sweet spot on the weathered asphalt.. The G-Tech reading was 5.18 seconds.. Hmmm.. Not bad..
But the wheelspin hit bad on the northbound run and even though I stayed
on it only came up with a 5.55 second run..
That
makes me think. The
wheelspin I got on the 13.73 run was about the same as the 5.55 0-60... Which means I may have lost over
0.5 seconds.. Which would put
Rustpuppy in the neighborhood of 13.2, which is a good neighborhood..
The next
challenge was an unexpected one. I
went to replace the parts that had fallen out of the B&M shift kit laying
on the passengers floor in Rustpuppy.
When I tried to open the door the little pushbutton thingie was frozen
solid.. Creeping rust. I soon put it right with WD40 and ATF
and the careful application of a ball peen hammer..
Then
since the day was so splendid and I wanted to stay out of the lab I decided to
mess with Rustpuppy’s timing and mebbe do another 0-60 run or two.. That is what testing and tuning is all
about.. And it beats the grind at
work..
I
quickly got my plain vanilla timing light hooked up.. A simple control-free tool. Since I had the 30 degrees BTDC mark on the vibration damper
I don’t need no high zoot electronic thingamajig.. This plain ol’ Craftsman timing light has been serving
me since about 1983 or so..
When I
went to pull the vacuum advance hose off I was horrified to find it already
off. It seems ol’ Dufus
Draganowski (who perhaps needs a keeper in his declining years) forgot to put
it back on the last time he checked the timing.. Duhh..
(in a very expressive tone of voice) So all the latest racing (not much really) has been
done with the stupid vacuum leak..
And going to town and showing off and all that crap.. What an idiot I am sometimes..
The
timing was still at 34 degrees total so I messed around with it and wound up at
42 degrees for the first test..
It was a
dud.. I could tell that Goody was
fighting herself because of too much timing and the low end torque was way
down.. It was not worth even
trying a 0-60 time.. Goody
felt like she was in pain..
The 2000 Goodwrench heads are pretty high tech compared to the 30 and 40
year old designs and with the porting and milling seem pretty efficient to me..
Then it
was back in front of the shop fiddling with the timing again.
Setting
it back from 42 to 36 degrees total..
I could
tell before I got off the lawn that Goody was happy again and the old pepper
was back.. Perky
motors is good..
I
motored slowly down to the sweet spot on the old road asphalt and took off with
just a hint of wheelspin.. About ¾
turn on the BFGoodrichs..
Rustpuppy felt strong and steady and even with the bit of crosswind was
tracking nice with the 1 ½ degrees of positive caster..
I saw
the 0-60 flash on the G-Tech and jammed on the brakes just short of locking the
rear wheels and got a 190 ft stop..
Not great, but not bad for a 25 year old car..
The
flashing time came up..
0-60 4.71
seconds..
Too
cool... A Viper does it in
4.8...
More to
come..
Rick
Draganowski
Subject: Rustpuppy TestTune 23
Date: Thursday,
May 03, 2001 8:20 PM
Another
top notch beautiful day on the Pacific coast.. About 68 and sunny. I had been negotiating with Brett at Central to make a
definite appointment to slam the B&M shift improver into Rustpuppy’s new
transmission. Today at 3:00
was that time.. I left early
to be sure to be the annoying early guest.. I arrived while Brett was still at lunch so I took care of
some business and annoyed Jeff for a while..
So I
presented Rustpuppy, myself, the prepped shift kit (holes drilled and plates
trued) and a case of transmission fluid at 2:30.. Brett was taking care of some emergencies and finally
got started on Rustpuppy at almost exactly 3.. I took my tall stool so I could sit and watch and
kibitz.. I was concerned
about the possible lack of workmanship (as in the driveline) on Brett’s part
showing up.. My presence
probably precluded that but I found myself watching too much. Looking up is very bad for the
degenerated disc in my neck so I was messing myself up.. I eventually moved the stool away from
the battle scene and over to the workbench.. (but not soon enough)
I should
not have worried as Brett was in his area of expertise and did a quick,
competent and careful job..
His efforts took just a bit over one hour.. Then he had to leave early to go fishing.. This is Curry County you know.. So one of the kids finished the
job. (just putting the fluid in and checking for leaks)
Speaking
of leaks, the missing quart of fluid was accounted for. The o-ring on the detent cable was
pushed to one side by the transmission cooling lines and was dripping a lot.. Brett fixed that issue.. Those tubes were recycled from my old
white truck and never have fit exactly right..
Brett
didn’t even want to fool around with getting paid because he was in a hurry to
get home and clean the ATF off and gather up his fishing gear.. He said that he would catch me later on
that.. Small towns have some
advantages..
As I
motored off back to town to get some groceries I could tell that the instant
1-2 and 2-3 shifts were back..
Too cool!
No
racing or anything foolish yet but on the old road to home I started out in
drive from a standing start and burned some rubber at launch and then again at
the 1-2 shift and again at the 2-3 shift.. All in drive.. The full rpm shifts will be even quicker..
Happy
day..
More to
come..
This is
where I left the report for today.
But..
You all
know what a nut I am when the wind stops and the traffic disappears.. And I have stuff to “test”.. And cooking dinner is boring..
So I
made the excuse that I needed to check the mail.. Got in Rustpuppy and motored up the hill to turn
around.. While I was up
there I decided to try a 0-60 run to test the new shifting.. I looked for the sweet spot on
the weathered asphalt but must have missed it because when I launched the
wheelspin was excessive..
The shifting was a dream though. Nice long CHURRRRPPP going into second and a smaller
churp going into third. But
due to the nutty wheelspin the time was 5.5 seconds.. Dead slow..
Now I
find myself at the end of the 0-60 run area on the old road so I decide to
motor down to the end of Rustpuppy run to turn around and come back on
101.. It was amazing.. The sun was setting, it was cool and
the wind had died to almost nothing.. There was not a car to be seen for miles on 101.. Hmmmm...
Dashing
down to the starting area on Rustpuppy run and found a nice spot..
Plenty
of time as there was zero traffic..
I
launched by just rolling on the throttle to prevent wheelspin and expect I lost
a couple tenths there but the launch was a good one..
The 1-2
shift came up quickly and I hit the shifter as fast as I could (because of the
looking up problem my right arm was partly numb and very painful so I was slow)
and the shift hit with a solid instant loud bark of the tires.. Most excellent!
In no
time it was grab for 3rd and another bark.. Rustpuppy was tracking perfectly
with great stability..
I could see the quarter indicators flashing so I coasted to the turn off
and motored slowly home like a good citizen..
The
G-Tech had 13.62 @ 106.4 showing and I left Rustpuppy running till I could
fetch the videocam..
(t&t23-1.jpg and t&t23-2.jpg)
Very
satisfying day.. I am very
happy with the time considering it was with a slow throttle roll on start..
More to
come.. (again)
Rick
Draganowski
(stupid
ol’ Draganowski looked up too much today and messed himself up..
Damn! when will I learn..)
Subject: Rustpuppy Test&Tune 24
Date: Friday, May
04, 2001 5:04 PM
I awoke
with plans for the day circling in my mind like our local vultures..
(poetic..
yeah, right..)
I wanted to do something about the rear axle location on
Rustpuppy because of the excessive amount of slip yoke showing.. First I checked out Yakima
Sue. Nothing in that area on her
had been touched since the factory put her together in 1975.. There was a thick coat of tarry
undercoating over everything but I was able to get a bracket to rear subframe
dimension that I could compare with Rustpuppy to see if my theory about the
brackets being in the wrong place had any validity.
Rustpuppy’s
brackets were in the exact same locations as Yakima Sue’s.. Damn.. The only variables left are the u-joint yoke on the axle I
got from Wade and the dimensions of the ESPO springs..
The only
actual work I accomplished was to replace the last two incorrect lugnuts on
Rustpuppy’s rear wheels..
I am
still getting some vibration from the red driveshaft above 5000rpm.. (but not anything like the messed up
one) It really needs to get down to Chuck’s in Brookings (50 miles away) and
get balanced.. It probably would
be worth the 50 bucks or so..
The damn
spiders moved into Rustpuppy’s speedometer bigtime and the needle is stuck at
55 mph all the time.. I have
a cheap mechanical aftermarket speedometer to install but the cable I picked up
for it was a clip-on instead of the old screw on design and that project is
hanging fire. I have a
temporary rpm to mph chart on the dash so I am not driving completely unaware
of speed.
The next
big project on Rustpuppy is to get the prototype Pyrometer system I made back in
1996 installed and continue with the product testing and production unit design.
More to
come..
Rick
Draganowski
(love to
hear Goody wind up to 6000rpm.. and love them shifts..)
Subject: Rustpuppy Test&Tune 25
Date: Saturday,
May 05, 2001 5:41 PM
A low
impact day as I started feeling bad yesterday evening and it is
persisting. (went to bed at 9
hoping to get plenty of sleep, ha..
up again at 5:30..)
About 10 I started feeling a little better so I took care of some
Rustpuppy chores..
I wanted
to verify the mounting of the rear wheels since the potentially disasterous
situation with the wobbly wheels and the wrong lugnuts. I got Rustpuppy jacked up
just a couple inches on each rear wheel and then ran her in gear to check for
runout and eccentricity of the wheels and tires..
They
checked out great. Looks
like one stupid problem solved..
There
are these disgusting marks on Rustpuppy’s Moons.. They are slug trails which leave a sticky residue and
then dust from the dry roads stick to them.. (t&t25-1.jpg)
No
racing or other high stress stuff this weekend till I recover from the
episode.. But I did take
Rustpuppy out for some low impact seat time and took a picture of the starting
point of the excessively wheelspinning 5.5 sec 0-60 run.. It looks like the tires and
suspension are doing the best they can under the circumstances.. The marks are about 8” wide and
even all the way across..
The actual sweet spot for launches is about 10 feet beyond the end of
the puppy tracks..
(t&t25-2.jpg)
More to
come..
Rick
Draganowski
Subject: Rustpuppy Test&Tune 26
Date: Saturday,
May 12, 2001 8:06 PM
We have
had unusually warm and dry weather for the last week or so. It was good for Craig Hauber’s visit
but too windy for racing..
Today it
started out with a slight drizzle and heavy clouds.. Cool! Back to normal Oregon weather..
I was
good and spent several hours in the lab working but started getting the “need
for speed” itch about 4 this afternoon.. I took Rustpuppy out to the end of Rustpuppy Run doing
little practice launches to warm Goody up..
Rats! Just too much traffic... Mostly motor homes from California
coming about every five minutes..
Went
back home and worked for a couple more hours..
6:00 pm
came and the wind was still and I could hear no traffic on the highway below...
I got
back into Rustpuppy and headed to the north end of Rustpuppy Run.. I staged and noticed an innocent driver coming around the
bend behind me.. I got on
Rustpuppy hard and wound up with too much wheelspin.. The time was just ok at 13.91@105.9
indicated on the G-Tech... I
wonder what the innocent driver thought..
When I
got to the south end of Rustpuppy Run there was no traffic at all so I made a u-turn
and got set up on the good staging pavement..
Got an
excellent start and would have had a perfect run except for one thing.. Ol’ dufus Draganowski lifted just
a hair before the traps.. Duhhh.. Got the strange combination of 13.65@102 coasting through the last hundred feet or
so.. Duhh again..
Did a
double set of u-turns and scampered back to the good launching area on the
south end.. Got a good
(but not great) launch and stayed on it for the duration for the time of 13.72@106.9..
I am
almost 100% sure that Goody responded to the timing change from 34 to 36
degrees overall with a reduction of low end torque and a bit more power above
4000rpm.. That is what
I feel and the converter flash is about 100rpm lower than before..
Will put
the timing back at 34 degrees before doing any more racing..
It was a
lot of fun today..
More to
come..
Rick
Draganowski
Subject: Rustpuppy Test&Tune 27
Date: Sunday, May
13, 2001 7:12 PM
Taking
it easier today I was busy in the lab when the old familiar itch struck
again. I planned to fiddle with
the timing on Goody to put it back to 34 degrees so that was the first step..
When I
got Rustpuppy on the road I could tell that she had more to offer.. I did a 0-60 to get the feel of things
and Rustpuppy responded with a nice 4.8 seconds.. Yesterday the best she could do was 5 seconds flat..
It looks
like the ports on the new (2000) Goodwrench not only look much better than
older design but are more efficient as well.. And I am pretty proud of the porting job I did
last winter.. It took weeks
cause it was too cold in the shop to stay out long..
After
the 0-60 run I motored down to the south end of Rustpuppy Run.. It was sunny and a lot drier and
warmer than yesterday so I didn’t know what to expect. Even though it was only a little past 4
there was no traffic so I could relax and take my time..
The
launch went well but with a little more wheelspin than optimum.. Some time was lost so I didn’t
expect much for this run..
After going well past the quarter (sun was on the G-Tech so I could not
see the led’s) I coasted to the turn off.. I was pleasantly surprised at the numbers showing..
Most excellent!
The G-Tech indicated 13.57@107.8 . My target of 13.4 is
starting to look like a real possibility.. And even with possibly 3 or 4
mph of
optimism the speed indicates reasonable horsepower..
I
decided to head home and take some pictures of the pretty numbers instead of
making another run.. Tomorrow is
another day..
A pretty
big difference going from 36 to 34 degrees on the timing.. Now I am thinking of dropping back to
32 degrees.. Very
interesting..
More to
come..
Rick
Draganowski
(less is
more, timing wise that is...)
Subject: Rustpuppy Test&Tune 28
Date: Friday, May
18, 2001 12:33 AM
Even
though I did a small road trip to town with Rustpuppy yesterday there was no
racing to speak of.. With the
clearing of the miserable 3 day 5 inches of rain storm the winds in from the
Pacific were strong (up over 40mph) and gusty and any high speed work would
have been suicide..
Today
was better but still windy from the northwest.. I couldn’t hold myself back and went out
on Rustpuppy run about 4 this afternoon.. I just made one southbound run and the traction was
lacking. Way too much
wheelspin.. And the
directional stability was poor with the gusty sidewinds so I was not interested
in trying another run..
Wind gusts were still considerably above 20mph. A lackluster 14.11@103.9 was the time.
Several
hours later I got the idea of making some more runs as the wind is usually
calmer in the evening..
Got
worked into another racing frenzy and made my way to the south end of Rustpuppy
Run.. Got a good
launch with just the right wheelspin but I could tell by the buffeting that
Rustpuppy was going into a still considerable wind from the North by Northwest.. At the top of the run Rustpuppy’s airspeed
probably was peaking at about 120-125 and that is not a comfortable
feeling. It took a lot of
concentration to stay on top of the instability and on the road.. Time was much
improved but because of the headwind considerably down from Rustpuppy’s best
still air time.. 13.69@105.7 was the indication on the G-Tech.
Still up
on adrenaline I motored back to the south end of the Run for another run with
an experiment. I have been
shifting at about 6000rpm (shiftlight on at 5800 plus an old man’s slow reflex
delay) so I decided to watch the tach and go for the shift early at about 5600
so the shift would hit right at 5800.. I wanted to see if there would be a big
difference.. The wind was still
too strong for this lunacy so the mph was the same but the time suffered due to
the early shift for a result of 13.89@105.6
indicated.
I still
had the Moxie for one more run so I went around to the south end of the Run for
the last run of the day.
Back to my normal shift pattern with the shifts hitting at 6000 or a bit
more.. Third good
start in a row on the really good asphalt of the south end and Goody sounding
strong and healthy. The
second gear shift was hitting pretty hard today with the rear lurching sideways
and causing a bit of a wobble in the direction each time and the high speed
work was very touchy but the last run went well for a final time of 13.65@105.6 indicated.
The
gusty quartering headwind was taking 2mph off of the speed and about a tenth
off the the time. But what
was really amazing was the loss of two tenths by just changing the shift points
by 200rpm lower.. Makes me
wonder if mebbe I should use the
6000rm pill and let the shifts hit at about 6200 as a test..
Another
200rpm on the shift points and 2 degrees off the timing are the next
Test&Tune experiments..
More to
come..
Rick
Draganowski
Subject: Rustpuppy Test&Tune 29
Date: Saturday,
May 19, 2001 10:04 PM
Still
too windy for running so I took some pictures of the Rustpuppy launching
process. The first picture
(t&t29-1a.jpg) shows Rustpuppy sitting still just before takeoff.
In the second picture (t&t29-2a.jpg) Rustpuppy has
taken off and has moved about a foot forward. You can see the front end is rising and if you look close
the rear is going up too.
I took
the center out of the second picture and inserted it into the first to show the
amount of lift.. (t&t29-3b.jpg)
I
printed out a large copy of the composite picture and did some careful
measurements and came up with these numbers. Front end rise to the center of front
wheels is 1.9” and the tires expanded 0.8” for a total front end rise of
2.7”..
And instead of squatting the splendid Lakewood Competition traction bars
made the rear end go up almost an inch.
0.8” to be exact.
More to
come..
Rick Draganowski
END OF CHAPTER
2