Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

On Apr 21, 1:48*pm, "Bill McKee" wrote:
"Tim" wrote in message

...
On Apr 21, 12:51 am, "Bill McKee" wrote:





wrote in message

.. .

On Tue, 20 Apr 2010 11:11:09 -0700 (PDT), Tim
wrote:

having a run down on somebody that cranked up a V-4 OMC, laid it
horizontal with nothing but a clutch, put it in a motorcycle frame and
made a drag bike out of it. With no water cooling (That I could tell)
I wonder how many passes that thing would make before locking up?

I can't imagine that would last long without some kind of cooling. He
may have tricked up some kind of radiator but I would be curious how
you recover the water. Outboards discharge directly into the exhaust
manifold. I suppose you could make up a different flange right at the
block to divert the water.,

The block is filled most
likely.http://www.jegs.com/p/Moroso/Moroso-...45552/10002/-1

A drag motor does not run very long at a time. 5-11 seconds for the 1/4
and
20-30 seconds in the staging area.

True Bill, but with the engines mdified for a racing design, extreme
RPM's *and a mixture of lord knows what kind of fuels, drag engines
develop a lot of heat very quickly. I would imagine that after a few
runs or so the engines were just about junk.

The block filler is designed to accept heat. *And an AA furler does a
complete rebuild after every run.

---------
* One dragster's 500-inch Hemi makes more horsepower then the first 8 rows
at Daytona.

* Under full throttle, a dragster engine consumes 1 1/2 gallons of nitro per
second, the same rate of fuel consumption as a fully loaded 747 but with 4
times the energy volume.

* The supercharger takes more power to drive than a stock hemi makes.

* Even with nearly 3000 CFM of air being rammed in by the supercharger on
overdrive, the fuel mixture is compressed into nearly-solid form before
ignition. Cylinders run on the verge of hydraulic lock.

* Dual magnetos apply 44 amps to each spark plug. This is the output of an
arc welder in each cylinder.

* At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame
front of nitromethane measures 7050 degrees F.

* Nitromethane burns yellow. The spectacular white flame seen above the
stacks at night is raw burning hydrogen, dissociated from atmospheric water
vapor by the searing exhaust gases.

* Spark plug electrodes are totally consumed during a pass. After 1/2 way,
the engine is dieseling from compression-plus the glow of exhaust valves at
1400 degrees F. The engine can only be shut down by cutting off its fuel
flow.

* If spark momentarily fails early in the run, unburned nitro builds up in
those cylinders and then explodes with a force that can blow cylinder heads
off the block in pieces or blow the block in half.

* Dragsters twist the crank (torsionally) so far (20 degrees in the big end
of the track) that sometimes cam lobes are ground offset from front to rear
to re-phase the valve timing somewhere closer to synchronization with the
pistons.

* To exceed 300mph in 4.5 seconds dragsters must accelerate at an average of
over 4G's. But in reaching 200 mph well before 1/2 track, launch
acceleration is closer to 8G's.

* If all the equipment is paid off, the crew worked for free, and for once
NOTHING BLOWS UP, each run costs $1000.00 per second.

* Dragsters reach over 300 miles per hour before you have read this
sentence.

Did you know .

. that the nitromethane-powered engines of NHRA Top Fuel dragsters and Funny
Cars produce approximately 7,000 horsepower, about 37 times that of the
average street car?

. that one cylinder of the eight cylinders of a Top Fuel dragster or a Funny
Car produces 750 horsepower, equaling the entire horsepower output of a
NASCAR engine?

. that the gasoline-powered engines of NHRA Pro Stock cars produce about
1,200 horsepower, about eight times that of the average street car?

. that an NHRA Top Fuel dragster accelerates from 0 to 100 mph in less than
.8-second, almost 11 seconds quicker than it takes a production Porsche 911
Turbo to reach the same speed?

. that an NHRA Top Fuel dragster leaves the starting line with a force
nearly five times that of gravity, the same force of the space shuttle when
it leaves the launching pad at Cape Canaveral?

. that an NHRA Funny Car is slowed by a reverse force more than seven times
that of gravity when both parachutes deploy simultaneously?

. that NHRA Top Fuel dragsters and Funny Cars consume between four and five
gallons of fuel during a quarter-mile run, which is equivalent to between 16
and 20 gallons per mile?

. that NHRA Top Fuel dragsters and Funny Cars use between 10 and 12 gallons
of fuel for a complete pass, including the burnout, backup to the starting
line, and quarter-mile run?

. that NHRA Top Fuel dragsters and Funny Cars travel the length of more than
four football fields in less than five seconds?

. that NHRA Top Fuel dragsters can exceed 280 mph in just 660 feet?

. that from a standing start, NHRA Top Fuel dragsters accelerate faster than
a jumbo jet, a fighter jet, and a Formula One race car?

. that a fuel pump for an NHRA Top Fuel dragster and Funny Car delivers 65
gallons of fuel per minute, equivalent to eight bathroom showers running at
the same time?

. that the fuel-line pressure for NHRA Top Fuel dragsters and Funny Cars is
between 400 and 500 pounds, about 20 times greater than the pressure on
passenger-car fuel pumps?

. that depending on size and angle, the large rear wing on an NHRA Top Fuel
dragster develops between 4,000 and 8,000 pounds of downforce?

. that the 17-inch rear tires used on NHRA Top Fuel dragsters and Funny Cars
wear out after four to six runs, or about two miles? Some brands of
passenger-car tires are guaranteed for 80,000 miles.

. that it takes just 15/100ths of a second for all 7,000 horsepower of an
NHRA Top Fuel dragster engine to reach the rear wheels?

. that it's desirable for an NHRA Top Fuel dragster to race with its front
wheels inches off the ground for about the first 200 feet of the run? This
ensures proper weight transfer to the rear wheels, a crucial part of a good
launch and quick run.

. that the nitromethane used to power the engines of NHRA Top Fuel dragsters
and Funny Cars costs about $30 per gallon?

Sources: NHRA Communications and Technical Departments, NHRA race teams,
motorsports equipment manufacturers (and boostedpimp)- Hide quoted text -

- Show quoted text -

Yes, Bill. I'm familiar with all the above. But what's neat is to
watch a $75,000.00 engine have a come-apart on the start line while
doing a burn out.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

"The block filler is designed to accept heat. And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

On 4/21/10 6:09 PM, Tim wrote:
"The block filler is designed to accept heat. And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.





It seems to me it would be exceedingly stupid to deliberately run a
water-cooled engine without water cooling.

--
The Tea Party's teabaggers are just the Republican base by another name.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

"hk" wrote in message
m...
On 4/21/10 6:09 PM, Tim wrote:
"The block filler is designed to accept heat. And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.





It seems to me it would be exceedingly stupid to deliberately run a
water-cooled engine without water cooling.



Depends on how long you run the engine and what you are doing with it. A 9
second race with 20 seconds warmup and staging, will not burn up the engine.
Especially with a heat asorbing material in the water jackets.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

On Apr 21, 6:40*pm, hk wrote:
On 4/21/10 6:09 PM, Tim wrote:

"The block filler is designed to accept heat. *And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.

It seems to me it would be exceedingly stupid to deliberately run a
water-cooled engine without water cooling.

--
The Tea Party's teabaggers are just the Republican base by another name.

That's because you know nothing about mechanical things. You DO
realize that when the engine starts up, it is running, BY DESIGN
without water cooling don't you? That's what the thermostats do.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

On 4/22/2010 10:07 AM, Loogypicker wrote:
On Apr 21, 6:40 pm, wrote:
On 4/21/10 6:09 PM, Tim wrote:

"The block filler is designed to accept heat. And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.

It seems to me it would be exceedingly stupid to deliberately run a
water-cooled engine without water cooling.

--
The Tea Party's teabaggers are just the Republican base by another name.

That's because you know nothing about mechanical things. You DO
realize that when the engine starts up, it is running, BY DESIGN
without water cooling don't you? That's what the thermostats do.

Don't confuse the dip**** with facts and common sense.

Nothing like the sound of a v-4 Evinrude at 6:30 AM.
 

On Apr 22, 10:24*am, anon-e-moose wrote:
On 4/22/2010 10:07 AM, Loogypicker wrote:





On Apr 21, 6:40 pm, *wrote:
On 4/21/10 6:09 PM, Tim wrote:

"The block filler is designed to accept heat. *And an AA furler does a
complete rebuild after every run."

But I doubt they were concerned about dong a rebuild on a v-4 evinrude
in the early 70's . Probably ran it till it scattered then called it a
day.

It seems to me it would be exceedingly stupid to deliberately run a
water-cooled engine without water cooling.

--
The Tea Party's teabaggers are just the Republican base by another name.

That's because you know nothing about mechanical things. You DO
realize that when the engine starts up, it is running, BY DESIGN
without water cooling don't you? That's what the thermostats do.

Don't confuse the dip**** with facts and common sense.- Hide quoted text -

- Show quoted text -

What's funny is the moron has tried to claim that he's taken
mechanical engineering courses, and he come up with gems like this,
and his thread about drilling holes in a structural member of his
trailer that wasn't intended to have holes drilled in it! His excuse?
There's already holes in it for the fenders and lights!!!!