Shame, we need more aerospace engineers, actually engineers in general..
When I worked at Lockheed they had a hard time retaining them. If I was only
younger and smarter..
On Thu, Oct 6, 2011 at 11:50 PM, Kurt Nolte wrote:
> I once gave very serious thought to becoming an aerospace engineer. Deci
I once gave very serious thought to becoming an aerospace engineer. Decided
I didn't like fluid dynamics that much, so I went EE. :D
-Kurt
On Thu, Oct 6, 2011 at 11:48 PM, Allen Thomas wrote:
> Your absolutely right, can't argue with math! lol! I guess what I'm
> saying is that my typical wee
Your absolutely right, can't argue with math! lol! I guess what I'm saying
is that my typical weekly commute is not highway but back roads, and I'm
doing the same speed as I would on the NH, same route, just cruising along
in 2 valve mode. I know I'm comparing apples to oranges as far as the bike
You're still increasing the force of drag with the square of the velocity,
so... higher velocity is going to be more drag, no question.
Fd = 2*p*(v)^2*Cd*A
where
Fd = force due to drag
p = density of the fluid you're moving through
v = velocity
Cd = drag coefficient (which is probably what you were
Plus the gearing especially for the highway is a serious overdrive, and the
wind protection is fantastic so i would expect the drag to be a lot less.
The VFR cruises effortlessly, when I first got it every time i looked at the
speedo I was doing 90.
On Thu, Oct 6, 2011 at 11:32 PM, Allen Thomas w
True it is a much higher performing bike, but most of the time I'm riding it
around in 2 valve mode, with all the elecronics doing their thing to
optimize milage/emmisions. When it is in 2 valve mode it really is
comparable to the NH, at least according to the "seat o pants" dyno.
On Thu, Oct 6, 2
Okay, going to take a stab at this.
One, your bike makes 46% more power than the Nighthawk with only a 6% bump
in displacement (ish). It weighs ever so slightly more, only really
applicable during acceleration.
The bike is setup to encourage higher speed travel, which increases drag and
increases
Yea a 2003 VFR800, a little over 500LBS with 110HP. I really like the bike,
the power is about perfect, but the delivery of it is not so much. It can
put you in a scary situation if your not careful, but it doesn't have so
much power that it surprises you, just don't crank it to the stops in 1st
ge
Good thoughts, Kurt.
On Oct 6, 2011, at 7:45 PM, Kurt Nolte wrote:
> I will say that, with a stock engine, the two EFI conversions I have been a
> part of have provided approximately 25% bumps in mileage over the carbureted
> version.
>
> One was a pickup, 80s vintage. 2.2L inline engine. Ran
They have to all slide out toghether onthe trey. In order to get the trey off
you need to pull the front plastics, seat, linkages and as always the boots are
a pain. We pulled them in the evening cleaned overnight and reinstalled the
next am. Could be done in 1 day
--- Sent with mail@metro, Rea
Allen: VFR 800cc? Weight? Power?
The huge allure for me to EFI is the "hands off" nature of most EFI setups
and it's adaptability.
-Kurt
On Thu, Oct 6, 2011 at 10:44 PM, Allen Thomas wrote:
> I think the big issue is that people generally don't know how to tune a
> carb anymore. My almost 30 y
Oh yea and my VFR has other wiz bang high speed low drag gizmos lie VTEC-E,
and airbox flappers that are all supposed to make the engine run more
efficiently.
On Thu, Oct 6, 2011 at 10:44 PM, Allen Thomas wrote:
> I think the big issue is that people generally don't know how to tune a
> carb any
I will say that, with a stock engine, the two EFI conversions I have been a
part of have provided approximately 25% bumps in mileage over the carbureted
version.
One was a pickup, 80s vintage. 2.2L inline engine. Ran fantastically, owner
just got bored and wanted to put EFI on it (he also loathed
I wasn't sure about the steel either, but it did improve fuel consumption by
something like 20%
Can anyone identify the dirt bike?
On Oct 6, 2011, at 7:32 PM, Kurt Nolte wrote:
> I'd love to see them try again with, say, one of the new CBR250s: Watercooled
> single, counterbalanced, fuel inject
I think the big issue is that people generally don't know how to tune a carb
anymore. My almost 30 year old brother has never owned a carburated vehicle.
My VFR with its pre and post cat O2 sensors and computer that uses them to
dynamically meter fuel during cruise only gets marginally better gas m
I still wanna know what they did with the exhaust in their bubble
-Kyle
On Thu, Oct 6, 2011 at 9:32 PM, Kurt Nolte wrote:
> I'd love to see them try again with, say, one of the new CBR250s:
> Watercooled single, counterbalanced, fuel injected, upright, faired. Also
> still pretty lightweight,
I'd love to see them try again with, say, one of the new CBR250s:
Watercooled single, counterbalanced, fuel injected, upright, faired. Also
still pretty lightweight, and I imagine that stripping the fairings off that
bike can't be terribly hard.
Too bad they aren't doing Canadian offerings: they c
They are staring you in the face, what makes it so hard to pull them, the
linkages? Advice would be greatly appreciated.
On Thu, Oct 6, 2011 at 10:21 PM, greenzer...@gmail.com <
greenzer...@gmail.com> wrote:
> Yes getting to the carbs is a major PITA but verry well worth it. Mine took
> us overni
"I don't see someone trading in their Geo Metro for a 110 cube Harley full
dresser for 'economy' reasons." Funny!
I was just thinking that a dirt bike isn't of the same build quality as most
street bikes, and like someone said earlier that an air cooled engine needs
to run richer.
On Thu, Oct 6,
starting a new thread for this one...
So let's say you have a well-tuned carburated engine, then you switch it to
have tuned-port injection (since I would think that would be the most realistic
swap.)
How would mileage compare?
I know that FI has some benefits such as on cold-starts, but I'm pr
Yes getting to the carbs is a major PITA but verry well worth it. Mine took us
overnight.
--- Sent with mail@metro, Real Life Real Time Mobile ---
---Original Message---
From: nighthawk_lovers@googlegroups.com
Sent: 10/6/2011 9:58 pm
To: nighthawk_lovers@googlegroups.com
Subject: Re: [Nighthawk
The aim was to see if 'the average guy who trades his car in for a bike to be
nicer to the environment.'
On that basis, this seems logical. A 250 is about the smallest that most people
with any type of significant commute would want, and a dirt bike is about as
stripped-down as you're going to
Go Go Gadget 250ccs?
Maybe the gearing was good after all. I am willing to be wrong. :D
-Kurt
On Thu, Oct 6, 2011 at 10:14 PM, James O'Gorman wrote:
> annd... it got over 50mpg in the first test, and over 70 mpg's
> inside the 'magic bubble'
>
> On Oct 6, 2011, at 7:12 PM, Kurt Nolte w
annd... it got over 50mpg in the first test, and over 70 mpg's inside
the 'magic bubble'
On Oct 6, 2011, at 7:12 PM, Kurt Nolte wrote:
> Yup. And I don't know that they mentioned outright what its demonstrated FE
> is on the program.
>
> I imagine they might have been going for: Lightw
Yup. And I don't know that they mentioned outright what its demonstrated FE
is on the program.
I imagine they might have been going for: Lightweight, EFI, Catalyzed,
simple to pull apart.
I can only imagine the gearing was kinda crappy for the highway speeds runs
they demonstrated.
-Kurt
On Thu
I'd guess that you should clean all contacts in the charging/starting system
and replace any wires/cables that have bluish powder (corrosion) or
exposed/rusted wires. As stuff heats up, electrical resistance builds
(exponentially). This would explain why it magically works again once it cools
d
We were at 996 before I sent this one.
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Well Javiers bike is slow to rev down like it is lean on the pilot jets, but
it smells like it is dumping fuel, and his gas mileage is only in the high
20 range. Riding home I took a road in a valley by a stream and the air temp
dropped off sharply, the bike started running stronger so that tells m
Its suposed to be a glide down the road bike. I also have carb isues right now,
and my power feels like half of what it should and i have to keep it throtled
to keep it running. But thats all carb stuff
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---Original Message---
From: nighth
Yea we have some carb issues to sort on it, but it is good to know that it
should be smoother running. Neither Javier or I know any one in the area
with one to use as a measure of how they should run. My NH750 with its 75 HP
would eat this thing for lunch in a drag race, so if it is supposed to hav
Much like my gl1200. But mines not thumpy and rated at 98 hp
--- Sent with mail@metro, Real Life Real Time Mobile ---
---Original Message---
From: nighthawk_lovers@googlegroups.com
Sent: 10/6/2011 9:31 pm
To: "Nighthawk Motorcycle Lovers!"
Subject: [Nighthawk Lovers] I got to ride Javier's GL120
While I hate the handle bars, and the fact that the engine gets in the way
of putting your feet down when you go to stop. I have to say over all I
liked it! The engine is kind of wierd feeling especially at idle, it is
thumpy like a V-twin but not quite. Actually the engine reminds me of my old
Kar
Very well stated kurt. I am always bragging about my old perkins 4.154 but
parts for my 30 year old limited production diesel are expensive and hard to
find.
--- Sent with mail@metro, Real Life Real Time Mobile ---
---Original Message---
From: nighthawk_lovers@googlegroups.com
Sent: 1
Sorry, that did sound a little terse. I'm very much used to listening to
people blast about how "filthy those damn diesels" are, and they always seem
to come back to a small handful of reports that used very poor control
methodology to support their points. Two of those reports originated with
CARB
So, here's the odd thing.. a replacement pack (aftermarket) is around
$70... and 3 individual friction plates are $11 each (OEM) on
bikebandit. Am I missing something here? Do I need more than just the
friction plates?
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You know, using what we've been going over in class here lately, I could
probably /build/ one of these. Probably cost me more than $3, though. :p
-Kurt
On Thu, Oct 6, 2011 at 4:20 PM, Hanghank wrote:
> from a previous post: Stop guessing.
>
> On Wed, Jul 27, 2011 at 12:33 PM, Hanghank wrote
from a previous post: Stop guessing.
On Wed, Jul 27, 2011 at 12:33 PM, Hanghank wrote:
Run – do no walk – to your nearest Harbor freight store, and get this LED
tester. Hook it to your battery, and observe your charging/discharging
conditions as you ride. It will not pinpoint the cause of y
Put a volt meter on it and rev to 4K-5K RPM you shoud have above 13V,
usually aroung 14.5V. if you don't have that then you most likely have a bad
Regulator/rectifier, Stator, or both.
On Thu, Oct 6, 2011 at 2:47 PM, kingklr wrote:
> I have been having a problem with my battery discharging when
Don't take offence Kurt, I didn't mean any. And true Gas just like anything
that burns something creates pollution, and a discussion of what is worse is
probably futile since its all bad. They say by grilling meat you are adding
carcinogens. I read somewhere that lawnmowers are the largest contribu
I have been having a problem with my battery discharging when I go on
longer freeways rides on my 85 cb700s. When I ride around town I have
no issues, the bike starts no problem. I did a 400 mile ride
yesterday, and when I stopped to put gas after riding for abotu 130
miles the bike would not sta
Not far off from how a modern particulate trap works...
Kurt
On Oct 6, 2011 1:14 PM, "Kyle Munz" wrote:
So why can't diesels throw a giant vacuum cleaner bag over the end of their
exhaust to capture the larger particulates and empty it every night?
-Kyle
On Thu, Oct 6, 2011 at 12:06 PM, Kur
So why can't diesels throw a giant vacuum cleaner bag over the end of their
exhaust to capture the larger particulates and empty it every night?
-Kyle
On Thu, Oct 6, 2011 at 12:06 PM, Kurt Nolte wrote:
> That's great, Allen, but can you point to similar studies on the nanofine
> and ultrafine
That's great, Allen, but can you point to similar studies on the nanofine
and ultrafine particulates emitted unregulated by gasoline engines?
I haven't found any; until the effects of those more persistent particulates
are studied in a health context, pinning the blame solely on one or the
other i
Kurt, that soot is more dangerous than you might think. I always thought it
was mostly carbon.
The Clean Air Task Force (CATF) combined NATA data with the diesel cancer
risk factor developed by the California Air Resources Board and found it to
be three times greater than the risks of all air tox
I think I will be going there for few days for work. But 4 hrs seem too long
for us to get together.
Javier.
On Thu, Oct 6, 2011 at 11:46 AM, Kurt Nolte wrote:
> Javier: about four hours, ~250 miles.
>
> What's in Charleston then?
>
> Kurt
>
> On Oct 6, 2011 11:36 AM, "Javier Garcia" wrote:
>
>
Javier: about four hours, ~250 miles.
What's in Charleston then?
Kurt
On Oct 6, 2011 11:36 AM, "Javier Garcia" wrote:
Kurt, how far are you from Charleston, SC?
On Thu, Oct 6, 2011 at 11:22 AM, Kurt Nolte
wrote:
> >
> > Only when parked at opposite ends of the loop, Javier. I have five
> mi
Kurt, how far are you from Charleston, SC?
On Thu, Oct 6, 2011 at 11:22 AM, Kurt Nolte wrote:
> Only when parked at opposite ends of the loop, Javier. I have five minutes
> built in at each end for bathroom breaks and to stay on time. :p
>
> Better than the guy I just spotted texting at the light
Only when parked at opposite ends of the loop, Javier. I have five minutes
built in at each end for bathroom breaks and to stay on time. :p
Better than the guy I just spotted texting at the light, on a ninja...
Kurt
On Oct 6, 2011 11:16 AM, "Javier Garcia" wrote:
Hey! drop the cellphone and lo
"City bus runs into crowd. 17 hurt or injured. Online motorcycle club to
blame..."
-Kyle
On Thu, Oct 6, 2011 at 10:16 AM, Javier Garcia wrote:
> Hey! drop the cellphone and look at the road!
>
> Javier.
>
>
> On Thu, Oct 6, 2011 at 11:13 AM, Kurt Nolte wrote:
>
>> And runs generally hotter an
I'm not sure how it was cooled at all once they put the bubble on it. I'm
also not sure what they did with the exhaust at that point or if Jaime just
breathed the fumes.
-Kyle
On Thu, Oct 6, 2011 at 10:05 AM, Kurt Nolte wrote:
> Was their bubble bike aircooled? That will spike NOx and/or HC as
Hey! drop the cellphone and look at the road!
Javier.
On Thu, Oct 6, 2011 at 11:13 AM, Kurt Nolte wrote:
> And runs generally hotter and less consistently. Sorry, sending replies on
> brief breaks in the route.
>
> Kurt
>
> On Oct 6, 2011 11:05 AM, "Kurt Nolte" wrote:
>
> Was their bubble bike
And runs generally hotter and less consistently. Sorry, sending replies on
brief breaks in the route.
Kurt
On Oct 6, 2011 11:05 AM, "Kurt Nolte" wrote:
Was their bubble bike aircooled? That will spike NOx and/or HC as it has to
run slightly richer...
Kurt
>
> On Oct 6, 2011 10:52 AM, "Kyle M
Was their bubble bike aircooled? That will spike NOx and/or HC as it has to
run slightly richer...
Kurt
On Oct 6, 2011 10:52 AM, "Kyle Munz" wrote:
Here's the page for that episode. I still can't find any mention of the
make/model, they just mention that it's a single cylinder 250 with fuel
inj
Here's the page for that episode. I still can't find any mention of the
make/model, they just mention that it's a single cylinder 250 with fuel
injection and a cat.
http://dsc.discovery.com/videos/mythbusters-bikes-and-bullets/
-Kyle
On Thu, Oct 6, 2011 at 9:39 AM, Kurt Nolte wrote:
> Oooh...
Kurt and All,
If you want blown fuel injectors - try this:
http://www.youtube.com/watch?v=vZgrfTj0-KU
Mexican railway locomotives were often poorly maintained -
and injectors on a V 12 to V16 diesel engines were often let go.
The opening shot has one that isn't bad by
Yeah, they never said the make/model of the bubble bike but they claimed it
was the most efficient bike you could currently buy.
As for the testing, all were tested identically. They ran the sniffer up the
tailpipe of each vehicle and ran their course. For the car vs bike of each
era section they h
Oooh... color me interested. Remember the model?
Kurt
On Oct 6, 2011 10:30 AM, "James O'Gorman" wrote:
*It was both, and it was only a 250cc
On Oct 6, 2011, at 7:25 AM, Kurt Nolte wrote:
> Javier, in this instance the emission controls we...
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You received this message because you are s
Allen: the good thing about that particular pollution is that it quickly
settles out of the air. The soot and smoke you can see has a short residence
time in the air, while the super fine stuff hangs around much longer.
Most fleet operators would gladly correct the smoking issue; black smoke is
wa
*It was both, and it was only a 250cc
On Oct 6, 2011, at 7:25 AM, Kurt Nolte wrote:
> Javier, in this instance the emission controls weren't the same between the
> two, with their bikes being carbureted and no catalyst. I don't guess that
> their bubble bike was injected and catalyzed, but it m
Javier, in this instance the emission controls weren't the same between the
two, with their bikes being carbureted and no catalyst. I don't guess that
their bubble bike was injected and catalyzed, but it might have been.
Kurt
On Oct 6, 2011 10:13 AM, "Javier Garcia" wrote:
If you compare a car
Personally I agree with the "smiles per mile". Until the make fleet vehicles
get emissions inspected I wouldn't worry about all the bikes in the country. I
know we have some diesel fans but yesterday I got stuck behind a dump truck
that was laying down so much black smoke that I could barely see
If you compare a car and a bike with similar emission control devices, and
you still get that the bike pollute more, that I don't understand. I don't
think cars and bikes are that different in terms of the mechanics. I am very
suspicious about these results. In general, I like the program as
entert
what a beauty! Graham
On Oct 5, 2011, at 9:37 PM, Joe S. wrote:
Hello all. A couple weeks ago I decided to work nonstop through the
weekend to get my 550 running. I started sat morning and finished sun
night. Once I got it all together, it fired right up and idled
without a stutter. It so
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