Rotary Engine Part 1

Rotary engines have always been a mystery to me.  Never understood them, no clue on how they worked.  Here is a great little vid on how it works.

Thanks for reading

Tim

Carburetors – Size Matters

You’ve build the engine block from the ground up.  You bored it, honed it and polished and ported it.  The goal – MORE POWER!!!  But you are going to defeat the purpose of all that work and $$$$ buy tossing the wrong size carb with the wrong size fuel line.

So I ran across the this chart that can help.

If the CID is                      Carb Size                                Fuel Line diameter

250 – 300                           480-600 cfm                                   5/16 ”

300 – 350                           600-350 cfm                                    5/16″ or 3/8 ”

350 – 400                            650-750 cfm                                    3/8″

400 – 500                            750-950 cfm                                    3/8″ or 1/2″

 

There is one other consideration and that is the capacity of the fuel pump, however that can be compensated for by using a fuel pressure regulator.

950 CFM Carb

Thanks for reading

Tim

 

FEATURE: 1978 VW Bus

This from Classic Recollections (http://classicrecollections.com/2012/07/16/feature-1978-vw-bus/).

I’ve never owned but  I have a brother-in-law who has restored a few – they weren’t show quality like this one but they were in fact fully functional.    Although WV buses required “frequent” attention, the repairs aren’t difficult, but I’m not sure the fun outweighed the trouble.

This 1978 VW Bus has undergone a 10 year restoration.

The first question most people are dying to ask when they spy Jack Connelly pull up in his 1978 VW Bus is, “Do you go camping in it?”

Jack Connolly has imparted his love of VWs to his kids: Anna and Jack Jr.

Who can blame them? For decades, these uber-functional hauling machines were the vehicles of choice for motorists who desired to get up close to the picturesque outdoors.

With their squared styling, compact rear-engine design and over-the-wheels driving position, these microbuses have interior space in overabundance. Add to this the Volkswagen camper model’s pop-up roof, and occupants are able to fully stand up.

**Want to know how Jack restored this roomy rolling classic? Head over to our full feature on the Daily Herald HERE**

________________________________________________________________________________________This 1978 VW Bus has been restored over a period of 10 years.This 1978 VW Bus was restored over 10 years.

This 1978 VW Bus has been restored over a period of 10 years.

Opening the side sliding door reveals the spacious interior that can accommodate all sorts of cargo.

 

Thanks for reading.

Tim

Formula 1 Engine calculations

I wanted to share something I did related to piston speeds. As you know Formula 1 is near the pinnacle of technology in engine development. Back in 2003, I read an article about how the BMW Racing team developed their engine. The article stated they were very proud that for the 2003 season, their engine was a 3 liter V10 design which had a maximum racing RPM of 19200 and the piston sustained a maximum piston speed of 40 meters per second (which equals 7872 feet per minute maximum). The article further stated their piston sustained a maximum acceleration of 10,000 times the force of gravity at maximum revolutions per minute.

I was always curious about the bore vs stroke for such a small displacement, high revving engine, but they always kept that secret. I grabbed my old Dynamics book and realized I could solve for bore and stroke by two methods, using angular velocity and again by piston acceleration.

Please note, I found a typo on Page 1. It says VA and VB are parallel, when clearly it should be written VB and VC are parallel.

Enjoy and discuss!

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From Ted Yoder on ACE   http://www.arizonacorvetteenthusiasts.net/arizonavette/forums/index.php?showtopic=21192

Thanks for reading.

Tim

Engine Building/Mods – Piston Speed

OK, if there has one thing that being a forum surfer has taught me over my brief tenure of being such, is there are a lot of things that affect, generate, hinder and enhance engine performance that are not understood or simply just ignored.

Most of this stuff is simply just not shared, be it that they are considered speed secrets or the lay person simply does not understand it, whatever.

I wanted to start a thread to discuss some factors that affect engine performance and the parameters that performance engines live within. Read, argue, whine or cry, this is the truth.  And as Jack Nicholson said in "A Few Good Men"- "you can't handle the truth".  Well, maybe you can, let's find out.

Get your calculators ready, over the next few weeks, you will need them.

Now, with all of that out of the way, let's start by nailing down the first thing we need to consider when wanting to build a new engine and get the maximum performance out of it.  Knowing what we want to use it for will deliver the best possible results.  Building a high strung engine to take the family to picnics on Sundays will probably not deliver the experience you are after. Well, maybe the experience you are after, but probably not everyone else in the car.

The best place to build a starting point is to determine intended purpose of our engine and then correlate this to a range of piston speeds.

Piston speed will have a crazy-huge effect on how the engine performs.

I am going to break this down into different categories.  For those of you playing along at home, I will give you several examples to experiment with, I am not going to lead you down a primrose path to a result that I have predetermined.  Your rules, build what you want without spending a dime.

OK, the categories are:

Street engines (stock)
Mild performance or street/strip
Endurance/NASCAR/Road Race
Maximum effort (Mileage limited/drag race)
AYFKM effort (Component failure limited)

Now, the classification for each of these categories are split by how fast we fling the piston. But first, I guess we need to know how to determine piston speed so we can then determine which category we belong in, or vice versa.

The formula for Mean Piston Speed (MPS) is MPS in ft per minute=(inches of crankshaft stroke x (engine RPM/6))

Depending on the stroke of the crankshaft, and the RPM you expect to see, we can categorize our engine. This will affect our pocketbook, because it will directly affect the type and quality of parts we need to buy to support our performance objectives.

Now let's put these categories in a manner where piston speed can help us determine what we are building. Or, what we need to build to fit into a certain performance category.

Street engines (stock)                                   2000 to 3000 ft/min
Mild performance or street/strip                         3000 to 4000 ft/min
Endurance/NASCAR/Road Race                               4000 to 5000 ft/min
Maximum effort (Mileage limited/pro class drag race)     5000 to 6000 ft/min
AYFKM effort (Component failure limited)                 6000 to 7500+ ft/min

OK, so if you tried a few different combinations, you probably realize we can change the category by solely changing the stroke, changing our RPM, or both.  So great, wow, what a speed secret.  Thanks a whole pantload Parker, I read through all of this for that?  You're an asshole.  Yeah, I know I am, thanks. But the thing that we need to understand about the formula is you need to understand engine speed (RPM) is power.  Let's take a look at two theoretical engines and another formula, this one you have probably seen.

Horsepower = (Torque x RPM)/5252

By solely changing RPM, I can make one of these engines a grocery getter and the other, an F1 contender.

Two little six cylinders; both make an eyeball popping 246 pound feet of torque  :lol 

In the first one, my maximum usable RPM is 4500, and when plugged into the above formula (go ahead and do it, doofus), we see the engine is capable of making about 210 horsepower.  :facepalm: 

Now we will leave everything the same as far as torque, but let's give the engine an F1 race car caliber RPM of 19,250.  After you do the math (I don't have to call you doofus this time, do I?) we see that though my torque stayed 246 lb/ft, my horsepower climbed to a panty-dropping 910!  :willy 

RPM is power folks, RPM is the shit.  RPM can also stand for "Ruins People's Motors" if you don't know how to handle your newfound knowledge.

Piston action has a dramatic effect in the way air and fuel enter, and exhaust leaves the engine. Going back to our categories, we are going to relate the effectiveness of this piston action with our engine and piston speed categories. We do this using something called Volumetric Efficiency, or VE. VE simply put is; if I have a 100 cubic inch engine, and that engine can breathe in and expel 100 cubic inches of air for every camshaft (two crankshaft) revolution(s), it is 100 percent volumetric efficient. If the design of the heads, intake and exhaust only allow 85 cubic inches of airflow through the engine, it is 85% volumetric efficient.  If it can move 110 cubic inches of air flow, then it is 110% volumetric efficient.  Are engines over 100% VE possible?  Why yes, yes they are, and I am going to show you how to build one. Wow, a 350 cubic inch engine that can move 385 cubic inches worth of airflow?  Oh yes, yes indeed.

But that will wait until the next installment, for now, let this digest.

Street engines (stock)                                   2000 to 3000 ft/min              80-90% VE
Mild performance or street/strip                         3000 to 4000 ft/min              90-110% VE
Endurance/NASCAR/Road Race                               4000 to 5000 ft/min              110-120% VE
Maximum effort (Mileage limited/pro class drag race)     5000 to 6000 ft/min              120 to 127% VE
AYFKM effort (Component failure limited)                 6000 to 7500+ ft/min             125 to 128% VE

So we have learned that how fast the piston moves has a great affect on the performance I can expect.  And we also learned that piston speed is primarily controlled by the stroke of the crankshaft and the RPM of the engine. We also see how changing piston speed makes my engine fall into different performance categories.

Next time I will give you some real world examples I have tuned on the engine dyno and tested on the drag strip, as well as begin to talk about hw we get the air into the engine to take advantage of all of this piston speed we just talked about.

Cheers,  Parker


 ----------------------------------------------------------------------

The topic can be found here:
http://www.arizonacorvetteenthusiasts.net/arizonavette/forums/index.php?showtopic=21188

Engine Line Up – 1966 AMC

Often over looked is the first year AMC products.  AMC invested approximately 300 million dollars in  advanced engine designs, bodies and plant facilities as it prepared for the move from Nash Rambler hold over to AMC proper.

Of course the company was formed from Nash Rambler (AMC Rambler) in 1958 and eventually just American  Motors Corp.  So 1966 found a fair amount of “redesign” going on.   The available models for that year were:

Rambler American Rouge Series 01 (4dr w/V8)

Rambler Classic 770 Series 10 (2dr conv w/V8)  (4dr station wagon w/6cyl)

Rambler Rebel  Series (2dr w/V8)

Marlin Series 50 (2dr w/6 or V8) (My favorite besides the Javelin)

I love these cars. The two-tone paint is great. I love the yellow and black, blue and black and the silver and black combo.

Ambassador 990  Series 80 (4dr w/V8)

Rambler Ambassador 990  Series 80 (2d conv w/V8)

1966 Rambler Ambassador 990 Convertible

Rambler Ambassador DPL Series 80 (2dr w/V8)

Gone from the engine line up is the 196.5 6 cylinder overhead valve engine.  It was replaced with the 198.8 In Line Six. It was a cast iron block with overhead valves and a bore and stroke of 3.57 x 4.00 inches.  It displaced 198.8 cubic inches with a compression ratio of 85:1 and mustered up 128 hp. It was topped with a 1bbl Holley carb.  This was the base engine and all of the models could have been optioned with it.  But that wasn’t the only 6 banger the American 232 cid with produced 155 hp which sported a 2bbl Holley carb.

On the V8 side of things there was the 287 cid.  It was a cast iron block with overhead valves with a bore and stroke of 3.75 x 3.25 which produced a compression ratio of 8.7:1.  Topped with a 2bbl Holley (model 2209-2699) it made 198 hp.  The other option was the 327 cid that put out 270 hp and carried a 4bbl Holley on top.

New for that year was the 290 V8 (4.8L) it had a bore and stroke of 3.75 x 3.28  and with an iron block and overhead valves which produced 200 hp with a 2bbl plopped on top for 225 with a 4bbl carb.  Snap up the car with an original 290, only 623 of these engine were place in the 1966 models (all may the “American” models vs the “Classic” (those should have 287 instead).

The 290 used sparingly in the 1966 models.

The 327 was available in 1966. It was 5.4 liters with cast iron block.  The bore was increased over the 287 (they were similar set up) and it had hydraulic lifters.

The AMC 327 was similar to the 287, but displaced 327 cu in (5.4 L) due to the bore increase to 4.0 inches (102 mm). Unlike the 250, the 327 was available with hydraulic valve lifters.  The bore and stroke was 4.0 x 3.25  and topped with 2bbl carb it produced 250 hp.  Put the 4bbl option and you push it up to 270 hp.

I really these early AMC.

Thanks for reading.

Tim

CRUISE NIGHT: Downtown Barrington, Illinois

Downtown Barrington, Illinois's classic car cruise has been taking place for 9 years.Tucked away in the Northwest suburbs of Chicago is the quaint town of Barrington and every summer Thursday night, the classic cars come rolling in for the village’s weekly cruise. With its tranquil, tree-lined setting, easily accessible boutique shops and casual dining, this event is one draws automotive enthusiasts from all over.

Anne Garrett helps to oversee the downtown Barrington, Illinois classic car cruise night.

Anne Garrett

Anne Garrett serves as the Manager for Special Events and Marketing for the Village of Barrington and described to us how the cruise came to be.

“This year is our 9th year for the cruise, which got started in 2003. At the time, the village had been looking for ways to draw traffic and attention to the downtown area and knew a classic car cruise would be just perfect. Other neighboring suburbs had something similar so we did some research and determined we had what it would take to run a successful event. We settled on the South Cook street area and in all the years its been running, haven’t changed a thing.”

Anne informed us two village staff members and several members of the The Barrington Police will typically bring out a few vehicles to the classic car cruise.public works, as well as local law enforcement, are required to run the event.

“The Barrington Police will attend but it’s more of a public safety presence and a chance to interact with the local community.”

In addition, they also typically bring out vehicles from their fleet and allow spectators to get up close and personal with their high-tech cruisers. Volunteers from the Barrington Lions Club also help with the event.

Classic cars parked in downtown Barrington, Illinois for the classic car cruise. 2012“Four years ago we were approached by the group who offered their assistance. Every year since we’ve had 4 or 5 faithful volunteers help man the barricades and allow the cars to come in and out.”

Judging by the jammed lots, full of classic and custom cars, and the multitudes of owners and spectators milling about, it’s safe to assume the cruise has been a huge hit with the community.

“So far, the response has been tremendous. It seems every week people genuinely look forward to the event. They’re able to come early and go to the Farmer’s Market and then wander around the lots, checking out the cool classic cars. We rotate the onsite food venders and always have different entertainment so no two weeks are exactly the same.”

Classic cars parked in downton Barrington at the cruise. 2012

Expect the lot to be filled during the warm, cruising months.

The local businesses have taken notice of the increased foot traffic. Classic cars parked in downtown Barrington, Illinois for the classic car cruise. 2012

“We’re having more and more of our downtown merchants stay open late, which gives spectators many options for additional shopping and dining activities when they’re done seeing the cars. It really adds to the overall community feeling of the event and makes it a wonderful place to spend the evening.”

If you plan on attending the Barrington cruise and want to bring a four-wheeled relic, you’d better get there early.

“Our official start time is 6:30pm but the car owners will arrive and start cuing up around 4:30pm. Many of them want to make sure they get their ‘special spot’. Generally our end time is right at dusk, as the car owners don’t like driving home in the dark with their headlights on. We’ve been told they don’t like to run the risk of attracting bugs and having to put in the extra time cleaning them off.”

Classic cars parked at the 2012 downtown Barrington, Illinois classic car cruise.Each night throughout the summer has a theme, highlighting a certain brand, style or type of classic machine. While all are welcome, the themed vehicles are given special attention. Here is the schedule for the rest of the season:

July 19: 70’s Night
July 26: “Orphan” Cars
August 2: Mopar
August 9: Convertible
August 16: Sports & British Cars
August 23: Corvette
August 30: Trucks/ 4×4

** Want to know what events are taking place near you? Check out our Cruise Calender **

__________________________________________________________________________________

At the downtown Barrington cruise, you’ll see everything from an ultra-modern Fisker Karma to all your favorite vintage Detroit muscle machines.

Classic cars parked at the 2012 downtown Barrington, Illinois classic car cruise.

**All photos and content by Classic Recollections and may not be used without permission. 2012 © **

Classic cars parked at the 2012 downtown Barrington, Illinois classic car cruise.

Classic cars parked at the 2012 downtown Barrington, Illinois classic car cruise.

__________________________________________________________________________________

Classic cars parked at the 2012 downtown Barrington, Illinois classic car cruise.

Classic cars parked in downton Barrington at the cruise. 2012__________________________________________________________________________________

**All photos and content by Classic Recollections and may not be used without permission. 2012 © **

Steve’s C4 Update

I've been fiddling a bit with the Vette.  I have a few projects to do now that I've become a lot more familiar with the car in the last two and a half months.

Although the car sounds cool, the cheap aftermarket mufflers are completely rusted inside.  The baffles are all loose with lots of holes.  On the outside they look new.  They are the source of most of the rattles.

The lumbar supports on the sport seats don't work.  I can't hear the pumps run so inspecting electrics first on those.

Rear speaker amps are toast.  Expensive so it's not high on the list.

Steve’s 1990 C4

Tranny service due.  No biggie and not expensive.

PRNDL lights are out.  Not bad considering it's 22 years old and all other lights work.  I was amazed at the sheer number of lights inside.  Courtesy lights and mood lighting.  The interior alone must have 15 individual lights.

Drivers side headlight motor needs to be repaired.  It works most of the time. LOL.

It's a pretty short list considering the age.

It pretty much sits in the garage.  We are in the 100's (110 today) this week so it's morning and evening use.  The ac does not work but it still has the factory seals on the service ports so I'm hoping for good news there.  We do have R12 available here.  I unbolted the roof when I got it and it hasn't been back on since.  I always wanted a convertible and the coupe is a good compromise.

The most annoying thing about the car is the static electricity. It doesn't shock me or anything but dust sticks to it like glue and the California duster only moves it from place to place.  I never thought about a "plastic" body in that way.  The duster works just fine on my steel cars.

Dodging Bankruptcy and the Crusher

Dodging Bankruptcy and the Crusher.

Joe Greeves – July 05, 2012 10:00 AM

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(Editor’s note: Shortly after this article was written and printed in Auto Enthusiast (July issue), John Guarnieri was killed in a traffic accident en route to a show with his Dodge in tow. Our sympathies are extended to the friends and family in the loss and it was our privilege to share John’s car and passion with our readers).

Financial bailouts of automobile companies have been in the news but shoring up the auto industry is not something limited to recent times.

This beautiful 1955 Dodge Custom Royal Lancer is proof that sometimes the infusion of extra cash can produce striking results. Almost driven to bankruptcy because of poor sales in 1953 and 1954, Chrysler was saved from collapse by a $250 million loan from Prudential and the talents of automotive designer Virgil Exner. In 1955, a beautiful collection of cars across the board became the result that put Chrysler solidly back into the Big Three.

The redesigned 1955 Dodge emerged from the makeover as a truly representative car of the ’50s. Positioned between Plymouth andDe Soto in the Chrysler lineup, the Dodge sported a six-volt electrical system, kingpin/leaf spring suspension, and 15-inch wheels. Six adults could ride in comfort and the trunk could hold their luggage.

Over-engineered with 20-quart cooling systems and six-quart oil capacities (sixes as well as V-8s) the engines ran on low octane gas and were trouble free. They were good looking cars then and still are today.

Enter John Guarnieri, a retired police officer and lifelong Mopar enthusiast living in St. Augustine, Florida. John is an active member of the Ancient City Auto Club and has owned 64 vehicles over the years. His involvement with this beautiful example began moments before it was headed to the crusher!

In February 2004, he and a friend were on a parts run when they drove past a junkyard in Lake City, South Carolina, surprised to see a distinctive tri-colored Dodge being pushed inside the fence. Except for rusted floorboards from a failed heater core, the car was complete and the body was pristine. A six-volt battery and a gallon of fresh gas brought the 270 Hemi V-8 to life, convincing John that the car had potential.

He learned that the car had been carefully stored for more than 25 years by the grandfather and his son, but the grandson got involved with drugs and never paid the storage fees. Knowing that the Custom Royal Lancer was the flagship car of the Dodge line, John stepped up like Prudential a half century before, intent on saving the car. He wrote a check for the storage fee, paid for a South Carolina title, and took the car home. As an unexpected bonus, the dealer threw in a second ’55 Dodge as a parts car. In all, John acquired five parts cars during the almost four year restoration.

After trailering the car back to St. Augustine, John’s first step was to get the brakes working properly and exercising the engine. Several trips up and down the highway and two oil changes later, the engine stopped spewing black smoke, a sign that it was time for the full restoration to begin.

Recalling the process with a smile, John says, “It only took two days to tear the car apart and 3½ years to put it back together!” The five parts cars and new old stock items located on eBay gave John everything he needed to complete the project. He accomplished much of the work himself, overhauling the engine on his own and rebuilding the transmission with help from Danny Novello at American Transmission in St. Augustine.

John also redid the brake system, refurbished the gas tank, added a new YnZ wiring harness, and located five Goodyear 7.10 x 15 tires with 2¾ inch whitewalls. The correct combination of Jacquard fabric and Cordagrain vinyl was sourced in Canada and installed by Old City Upholstery in St. Augustine. Several other local experts added their talents, like Tony Puleo at A&R Auto Electrics, along with staff members Jimmy and Charlie, who handled the rebuild of the car’s electrical components.

Boyd’s Glass located and installed new tinted glass and Rick’s Mufflers fabricated the new exhaust system. Tony Castellano polished the stainless steel and Space Coast Plating of Melbourne, Florida, did the chrome. John’s good friend, Hamlet Smith from Palm Coast, Florida, helped in reassembling the car and John’s wife Lynda hand-painted the hubcap spinners, gauges and related pieces.

The refurbished 270 Super Red Ram V-8 came equipped with Hemi heads and a two-barrel carb, producing 183hp. A rare Power Pack option was available from the factory that added a four-barrel Carter carb and dual exhausts, good for an additional 10hp. John’s car is equipped with a two-speed PowerFlite transmission, complete with a unique dash-mounted shift lever. (Those famous Chrysler pushbuttons appeared the following year.) Chrome trim separated the colors on the door panels. Gauges span the width of the dash and on John’s car. The eight-tube pushbutton radio has an optional rear speaker.

Unique colors were part of the mid-’50s experience and Dodge certainly brightened the landscape, taking 13 basic colors and expanding the choices with 16 two-tone combinations. Newly introduced in 1955 were 16 more three-tone combinations. If 45 choices still weren’t enough for you, upper colors, insert colors, and lower colors could be switched, providing a staggering 76-choice color palette. John’s colors of Regal Burgundy Metallic, white, and black were colors that often appeared in Dodge brochures, making them a sought after combination. Handling the spray gun, Billy Walters from Jacksonville, Florida, shot the chassis and accomplished the unique tri-color paint job.

Saved from bankruptcy by Prudential and the crusher by Guarnieri, the Dodge justified their faith beginning in December 2008 when the car was presented to the judges. The hard work and long hours were rewarded with a Junior Award at AACA’s ’08 Winter Meet in Lakeland, Florida. The Senior Award followed at the 2009 AACA Spring Meet in Charlotte, North Carolina.

The following year, John trailered the car to New Bern, North Carolina where it won again, taking home an AACA Grand National Award. John hopes the car will obtain its Senior Grand National Award at the 2012 Grand National Meet in Shelbyville, Tennessee.

When that happens, it will be a genuinely happy ending for an almost bankrupt car once headed to the crusher.

Engine Line Up for 1946 Chrylser

Now 1946 generally wasn’t that exciting as far as new car models.  The war just ended and the many of the car manufacturers were recovering from the wartime conversion, they had a lot of Uncle Sam’s money, but no much time to make “new” tooling for creating new sheet metal.  So many of the cars were just spruced up.  Chrysler was not different.

Their main offerings was the Royal series, Windsor series, the Saratoga series and the New Yorker series.  The Royal cam in 3, 6 and 8 passenger and a Limo!!!  The Windsor came in 3, 6, 8 passengers and the Town and  Country  tossed in there was a 2 door convertible.   The Saratoga came in 3 and 6 passenger and the New Yorker came in 3 and 6 passenger and the Town and Country 4 door and 2 door convertible.

1946 Convertible

46 Royal

There engines were basically 6 cylinder and 8.

The Royal and Windsor engines was an L6.  It had a cast iron block with a bore and stroke of 3.438 x 4.5.  It displaced 250.6 cubic inches and had a compression of 6.6:1 (not huge when the shipping weight was 3,000 plus).  It was able to produce 114 hp and sported four main bearings, solid lifters.  It was topped with either the Fluid Drive (B-B VE1 – Ev2) or Vacumatic (E7L4) carb.

The Saratoga and New Yorker had an L8.  This engine too, had the cast iron block, but displaced 323.5 cubic inches and sported a bore of 3.25 and a stroke of 4.875 inches producing 6.7:1 compression.  With the 5 main bearings, solid lifters and topped with B-B E7A1 carb could produce 135 hp.

L8 Engine (49 but still the same engine)

 

Thanks for reading.

Tim