Landracing Forum

Tech Information => Technical Discussion => Topic started by: McRat on October 01, 2008, 04:29:03 PM

Title: GPS - What kinds are best?
Post by: McRat on October 01, 2008, 04:29:03 PM
I would like to find one that acts fast, goes to xxx.x precision, has a large MPH display, and recalls top speed.  Playback would be cool, but not absolutely necessary.

Are there any that fit racing better than the normal "navigation style" driving GPS's?

Title: Re: GPS - What kinds are best?
Post by: DavidinDurango on October 01, 2008, 04:58:50 PM
AFAIK, you want the "top speed for trip" feature.  I have that because I can't drive 200mph sideways and watch the readout . . . . .

YMMV.


AFAIK = as far as i know
YMMV =  you mileage may vary

TTFN - wahahahahahaha
Title: Re: GPS - What kinds are best?
Post by: Jonny Hotnuts on October 01, 2008, 05:05:45 PM
For what its worth our GPS sorta F-ed us.

I have the Garmin nuvi 660 (msrp of about $850).

On my first run it was my intent to go a tick past 150 for licensing. I put 156(ish) on the GPS and held it steady through the 3rd. The timing slip read 149.85, this meant that I could not run past 175 on my second run and had to re-run for the license.

On the next runs it read hot every run
On my pops last run of 169.745 was showing this on the MAX speed of the GPS (and he lifted because he was already running faster then what was allowed for his license according to the GPS).

(http://photos-579.ll.facebook.com/photos-ll-sf2p/v364/69/50/1114496579/n1114496579_30164020_4549.jpg)

Now next year I have to make another license run between 175-200 before I can even make a run for the record @ 205.
As you may guess I am a bit bitter about being screwed by the GPS. I still dont know why it would of read hotter than the timed speed (I could see it running less if it didnt refresh quickly enough) but it only means that it didnt roll the same numbers and by proxy I was screwed.

Anyway this is my angry GPS story, I will know better next time.

-JH


Title: Re: GPS - What kinds are best?
Post by: willieworld on October 01, 2008, 05:16:43 PM
i run a speedometer that runs off the front wheel --cost 52 dollars  works great  willie buchta
Title: Re: GPS - What kinds are best?
Post by: Stan Back on October 01, 2008, 06:55:03 PM
My mechnical tach reads within one mile per hour of what my $2 cardboard Dream Wheel says it should.  the wheel has also helped some find their right gearing on-the-spot without plugging it in.
Title: Re: GPS - What kinds are best?
Post by: DCarr511 on October 01, 2008, 07:30:15 PM
I have a Magellan that I got in 2005 so it is pretty much out dated now, but it has all the features I would use and I like it very much.

It seems that Garmin is the top of the line now and the most common one being used.
Title: Re: GPS - What kinds are best?
Post by: isiahstites on October 01, 2008, 07:34:03 PM
I have a Garmin Etrex and it has read within a half mile per hour on every pass I have used it on.
I piad $50 for it used off of craigslist.

Scott
Title: Re: GPS - What kinds are best?
Post by: Stainless1 on October 01, 2008, 09:07:52 PM
JNuts, you need to see a speed readout, not max speed.  Depending on angle of intercept to the satellites you may see some erroneous max speed recordings.  Ever see a max for trip at 200+ from just driving down the road.  A real time readout will be like a speedo, and the max error is generally filtered out.  At least that is the way they worked in the early 90s...
Title: Re: GPS - What kinds are best?
Post by: roadtrip on October 01, 2008, 09:20:13 PM
For a simple speed indicator, this little thing works well.

Pros; Small size
        Internal battery
        Large bright numbers
        CHEAP -- about $70 two years ago ..... probably less now

Cons; Reads in one MPH increments ... no 1/10's
         Head-up display is useless in sunlight ... if not reflected it reads upside down and backwards so
         I mounted a mirror on it ... works fine day or night
         No recall

It's accurate, quick and doesn't need to be on top of the dashboard. I put mine on the steering column in front of the speedo. Throw the directions away ... it's easier to figure it out yourself.

DS
Title: Re: GPS - What kinds are best?
Post by: donpearsall on October 01, 2008, 09:30:37 PM
I saw that Jason McVicar had the little watch-type Garmin Forerunners attached to his bike dash. These have numbers about 1" tall and are easily read in the sunlight.

I was playing with one in the store the other day and you can configure it so that the entire display just has MPH showing.

Don
Title: Re: GPS - What kinds are best?
Post by: maguromic on October 01, 2008, 10:02:26 PM
I have a heads up display on my helmet made by SportVue http://www.sportvue.com/, I used it when I was road racing at it works great. I think they also have them on some bikes at Bonneville.  When I got mine it was about $225.
Title: Re: GPS - What kinds are best?
Post by: Jim H on October 07, 2008, 03:51:21 PM
This GPS will update 10 times a second (optional 20 times a second). I believe this is what motec uses.

http://www.blacklinegps.com/fuelgps.html
Title: Re: GPS - What kinds are best?
Post by: jl222 on October 08, 2008, 12:39:59 AM
  Jonny
  It was great to meet you at Bville this year.
  Are you timed at the end of the 3mile like an exit speed or is that an average for the whole mile.
  Unless there is a exit speed trap i don't know how one could average their speed for a whole mile especialy if lacking in power. On short course anyhow.
 El Mirage would be easier with 132 ft. trap.

                            JL222
                         
PS. Did you talk to anyone about signing your license i would think 149 would be close enough.
Title: Re: GPS - What kinds are best?
Post by: Low Sodium on October 08, 2008, 01:11:57 AM
I have a Garmin Foretrex 101 (about $110, takes 2 AAA batteries) strapped to my steering wheel. Worked with great accuracy during Speed Week. Nice big display and shows max speed, too.  Supposedly reads up to 950mph . . . :-o
Title: Re: GPS - What kinds are best?
Post by: Super Kaz on October 08, 2008, 09:29:04 AM
Mc Rat,
I had a BIG GARMIN that I traded {My Brand New SMALL one} to John Noonan's{for his Old BIG One} because the Number's were much larger=easier to see!
Then I just Lost it at my Top Secret Test Area out in the Desert while testing for M/B/F-1350cc record run at WOS :cry:!
I had it Super Velcro'd,Duct Taped ,and Zipped tided on,but it still blew off{hitting me right between the eye's} at 200+mph while on a test run :oops:.
I knew I was on a record run so I stayed tucked and didn't look to see where it went.
We Looked for Hour's all over the Desert for it,but never found it :x!
I then Tried a few different one's but they were not Visible{glare} to me at speed.
So I'm in Need of a new one too :|
Kaz..........
Title: Re: GPS - What kinds are best?
Post by: joea on October 08, 2008, 01:00:20 PM
wow you must have been really going fast ......

"""I had it Super Velcro'd,Duct Taped ,and Zipped tided on,but it still blew off"""

noonans stays on at over 250 mph with just regular velcro......

and mcvicars stays on at over 240 without a front fairing.........

Title: Re: GPS - What kinds are best?
Post by: John Noonan on October 08, 2008, 01:19:08 PM
Kaz,

The GPS that you lost was a Garmin 72 I believe...

J.A  :cheers:
Title: Re: GPS - What kinds are best?
Post by: willieworld on October 08, 2008, 02:05:40 PM
and the N and the A arnt even next to each other on the keyboard  --whats up john ---willie buchta
Title: Re: GPS - What kinds are best?
Post by: Super Kaz on October 08, 2008, 02:10:31 PM
wow you must have been really going fast ......

"""I had it Super Velcro'd,Duct Taped ,and Zipped tided on,but it still blew off"""

noonans stays on at over 250 mph with just regular velcro......

and mcvicars stays on at over 240 without a front fairing.........



not on a Harley Dipstitck , try it 1st then tell me about it:roll:! When you commin out of retirement so we can see if that 246mph run was for Real :??
Title: GPS - What kinds are best? The kind that stays on?
Post by: John Noonan on October 08, 2008, 02:38:53 PM
and the N and the A arnt even next to each other on the keyboard  --whats up john ---willie buchta

Willie...It was for Joe Amo.... :wink:

Willie you know me pretty dang well, I say how I feel and no "hidden" messages..beef stew huh..?  :wink:
Title: Re: GPS - What kinds are best?
Post by: willieworld on October 08, 2008, 02:50:56 PM
bring your own drinks      willie buchta
Title: Re: GPS - What kinds are best?
Post by: John Noonan on October 08, 2008, 03:05:15 PM
wow you must have been really going fast ......

"""I had it Super Velcro'd,Duct Taped ,and Zipped tided on,but it still blew off"""

noonans stays on at over 250 mph with just regular velcro......

and mcvicars stays on at over 240 without a front fairing.........



not on a Harley Dipstitck , try it 1st then tell me about it:roll:! When you commin out of retirement so we can see if that 246mph run was for Real :??

Kaz,

I am sure Joe Amo could assist you with his anti glazing/galling compound that may have been used in the 246mph run with his little Semi-Antique ZX-10 :mrgreen:

Kaz,

Just an FYI:

When you make post's questioning the accuracy/authenticity of the SCTA's timing system and those responsible for it you dishonor many great people that "give' their time and a little piece of themselves every year so "we" can race..if you need the timers or the folks that set up the timing equipment's phone numbers I have them, that way you can question them directly..

PS

Amo's runs are real...just like your 194 timed mile on your last pass on your V-rod.

PSS.  That GPS is about $159.00 I think from boaters world :wink:  If you are coming to El Mirage this month I could get one for you if you have the $$ or I can let you borrow one for this meet.

J
Title: GPS - What kinds are best? Any that Kaz did not install
Post by: John Noonan on October 08, 2008, 03:07:24 PM
bring your own drinks      willie buchta


 :cheers: :cheers:


Thanks,

I wish we still had the garden growing with veggies...see you two there and thanks.

Let me know if you need anything as we will arrive Friday afternoon..need us to bring some ice for your cooler?

J
Title: Re: GPS - What kinds are best?
Post by: Super Kaz on October 08, 2008, 03:57:31 PM
wow you must have been really going fast ......

"""I had it Super Velcro'd,Duct Taped ,and Zipped tided on,but it still blew off"""

noonans stays on at over 250 mph with just regular velcro......

and mcvicars stays on at over 240 without a front fairing.........



not on a Harley Dipstick , try it 1st then tell me about it:roll:! When you commin out of retirement so we can see if that 246mph run was for Real :??

Kaz,

I am sure Joe Amo could assist you with his anti glazing/galling compound that may have been used in the 246mph run with his little Semi-Antique ZX-10 :mrgreen:

Kaz,

Just an FYI:

When you make post's questioning the accuracy/authenticity of the SCTA's timing system and those responsible for it you dishonor many great people that "give' their time and a little piece of themselves every year so "we" can race..if you need the timers or the folks that set up the timing equipment's phone numbers I have them, that way you can question them directly..

PS

Amo's runs are real...just like your 194 timed mile on your last pass on your V-rod.

PSS.  That GPS is about $159.00 I think from boaters world :wink:  If you are coming to El Mirage this month I could get one for you if you have the $$ or I can let you borrow one for this meet.

J

J,
I'm sure they are{Glenn Barrett doesn't fool around when it come to Timing},but why would he not continue Racing and go for His AA :??
That was an Incredible Run{or Runs} no matter what size or make of Motorcycle :cheers:!
I can only guess why,but it can't be from lack of knowledge or skill?
I've had it all and Lost it and still LIVE ,BREATH,AND EAT RACING :oops:.
I may Not be an EXPERT like yourself,but I've got to buy,break, and loose my share of GPS units :evil:.
SKR........

P.S I was running un-faired with it attached to the Top of my triple tree{catching all the wind off the front of the bike} ,and yes I was going Super Fast :wink:
Title: Re: GPS - What kinds are best?
Post by: joea on October 08, 2008, 04:43:47 PM
retirement.............uh I was defending your silly self.....called out
of my civilian work ....and deployed overseas with US Army carrying for our wounded
warriers from afghanistan and iraq in a military hospital for 3 months leading
up to speedweek.........


im sitting in denver at jons awaiting an all clear for wf's that didnt happen......


there are excuses and results.........both speak loudly......

with that said....you go kaz....I respect your effort.....and im willing to help you
with whatever you might need....including how to duct tape, use velcro and zip ties
to secure a gps from falling off ......even with the ferociousness of that porsche designed
motor.....

Title: Re: GPS - What kinds are best?
Post by: racin jason on October 08, 2008, 05:34:21 PM



not on a Harley Dipstitck , try it 1st then tell me about it:roll:! When you commin out of retirement so we can see if that 246mph run was for Real :??


i will bet  you kaz that joe a has his AA in 2009. :-)

back to the original post:

  Garmin foretrex 201 runners model that comes with a velcro wrist strap.  I could read the numbers sliding on my butt at speedweek. reading the digits inside a vehicle should be no problem.

Title: Re: GPS - What kinds are best?
Post by: Kat on October 08, 2008, 05:51:11 PM
  Garmin foretrex 201 runners model that comes with a velcro wrist strap.  I could read the numbers sliding on my butt at speedweek. reading the digits inside a vehicle should be no problem.



Well that is good to know  :-D  I ordered one of these for McRat last night  :cheers:
Title: Re: GPS - What kinds are best?
Post by: Jonny Hotnuts on October 08, 2008, 06:33:11 PM
My wife owns a GPS runners watch.....


Works good for running.

It does take a while to boot up and lock on to enough sats to get a reading.
It drops as soon as it goes under a metal roof.
Tried it in the truck on the way home after we purchased it to see it work and had to keep it in the dash in order to get a signal.

I think my thicker than standard metal roof may of been why I was having some probs with my GPS in car.

I am looking for a remote antenna for it currently.

Good luck with the wrist version if you intend to use it in a vehicle.

-JH
Title: Re: GPS - What kinds are best?
Post by: Super Kaz on October 08, 2008, 09:47:05 PM
retirement.............uh I was defending your silly self.....called out
of my civilian work ....and deployed overseas with US Army carrying for our wounded
warriers from afghanistan and iraq in a military hospital for 3 months leading
up to speedweek.........


im sitting in denver at jons awaiting an all clear for wf's that didnt happen......


there are excuses and results.........both speak loudly......

with that said....you go kaz....I respect your effort.....and im willing to help you
with whatever you might need....including how to duct tape, use velcro and zip ties
to secure a gps from falling off ......even with the ferociousness of that porsche designed
motor.....



Thank You for Your Service,and I hope to see ya on the Salt in 2009 :cheers:!
Title: Re: GPS - What kinds are best?
Post by: Kat on October 08, 2008, 09:54:59 PM
My wife owns a GPS runners watch.....


Works good for running.

It does take a while to boot up and lock on to enough sats to get a reading.
It drops as soon as it goes under a metal roof.
Tried it in the truck on the way home after we purchased it to see it work and had to keep it in the dash in order to get a signal.

I think my thicker than standard metal roof may of been why I was having some probs with my GPS in car.

I am looking for a remote antenna for it currently.

Good luck with the wrist version if you intend to use it in a vehicle.

-JH


Thanks for the info.  I will bring the one we currently have also.  It is just a bit slow.  It's only really important if I decide to make my rookie pass in Casper one of these days :-D
Title: Re: GPS - What kinds are best?
Post by: racin jason on October 09, 2008, 12:15:36 AM
use a suction cup mount on the windsheild and it will be in the line of sight and work well. looking down at the dash at el mirage is not the hot setup unless you are hunting for dirtbikers.
Title: Re: GPS - What kinds are best?
Post by: joea on October 09, 2008, 01:12:59 AM
you bet Kaz, glad to do it..........

really looking forward to next year as always...

if ya need anything from Black Hills of SD just let me know...

Joe  :-)
Title: Re: GPS - What kinds are best?
Post by: Kat on October 09, 2008, 06:22:30 PM
use a suction cup mount on the windsheild and it will be in the line of sight and work well. looking down at the dash at el mirage is not the hot setup unless you are hunting for dirtbikers.

Good Point.  That got me to thinking that our Z06 has a heads-up display.

So I wonder if something like this would work?

http://www.autosportcatalog.com/index.cfm/fa/p/pid/5572/sc/52265
Title: Re: GPS - What kinds are best?
Post by: Jonny Hotnuts on October 09, 2008, 07:07:34 PM
I own that device and its made by a company called Globaltop.

I paid 99$ for mine.

It works great.....*except.

You can not see the display because of the stark white background of the salt.....period. I dont care if you use 2X thick window tint film that they provide in the kit.

We found this out in 07 and had to use a 3X4 inspection mirror taped to part of the roll cage to see it.
This was still a pain because my pop is about 4" shorter than I am, and this made swapping drivers a pain (the mirror was out of line of sight for me but worked great for my dad.

I will however say that this device has a very large display and could be used to make a very good speed indicator for your vehicle. You will need to glue a piece of mirror (glass or plexi or mirror vinyl) to the back of the windshield and mount the thing so you can see it. We had to jerry-rig a setup at the salt and it was not perfect. I am now considering re-using the unit (it gave dead accurate readings unlike my expensive Nuvi unit) and just do a nice install using the mirrored vinyl. People said the thing would vibrate and you will not be able to see the numbers, this was in fact incorrect and you could read them very well (I and to dip my head a bit to see the mirror) because of my bad salt install.
Other than that, the unit is quite cool and is a cool way to get a heads up in your personal ride....but for the salt you will need a mirror.

*this unit was mentioned previously in this thread as well.


BTW:

Here is the same unit for 70$.
THis is where I got mine.

http://www.semsons.com/gblhudgpsre3.html

Title: Re: GPS - What kinds are best?
Post by: Super Kaz on October 10, 2008, 11:18:37 AM
you bet Kaz, glad to do it..........

really looking forward to next year as always...

if ya need anything from Black Hills of SD just let me know...

Joe  :-)

Joe,
Great When can You START :wink:! I'm kinda LIKE the Blind leading the Blind{Racing a V-Twin DOHC} Then trying to Keep Up with You and the Gang{J/N,J/MC,ECT} on my FLIPPIN HD V-rod :oops:!!!!
All's I want is a Friggen 200mph club Hat and at this Point I'd Race just about anything to get one :cry:!
ONE GOOD THING GOING BROKE HAS TAUGHT ME is if you want it done{Fixing my Broken Bikes} you better Learn to do it Myself :?!
I Have ALL THE RESPECT IN THE WORLD for all of the Builder's that Race them Too :cheers:,and I have the scars on my hands to prove it :mrgreen:!
I'm 1/2 Polish so I have to do thing's the Hard way,and Going Fast on a V-rod is A BITCCH without much support{I'm the R&D Sponsor} :mrgreen:!
So I'm a LITTLE BITTER LATELY. :x
Believe Me Joe  if I had the Cash Jason's Bike
would be sitting in my garage getting Detailed by Me 8-)!!!
Welcome Home and God Bless YOU AND all THE TROUP'S!
Thanks again,,
Kaz.............




Title: Re: GPS - What kinds are best?
Post by: joea on October 10, 2008, 12:37:38 PM
its all about doing what we can with what we have......

often times ya learn alot more.....and garner more success....by
making what you have work.......through sheer persistence....which
most of us have in spades over money...........

you have come to far with your project......see it through it will mean everything...

you guys with gps's are cool.....ive never had one....

ive just had a shift light and no other guages....if it wasnt lit
i knew i was below my target .......

Title: Re: GPS - What kinds are best?
Post by: John Noonan on October 10, 2008, 01:00:55 PM
its all about doing what we can with what we have......

often times ya learn alot more.....and garner more success....by
making what you have work.......through sheer persistence....which
most of us have in spades over money...........

you have come to far with your project......see it through it will mean everything...

you guys with gps's are cool.....ive never had one....

ive just had a shift light and no other guages....if it wasnt lit
i knew i was below my target .......



Yeah but you have Dave and his buddy "Mo" to help... so it seems to work well....even for an older motorcycle....

 :-D
Title: Re: GPS - What kinds are best?
Post by: McRat on October 10, 2008, 02:28:13 PM
GPS is not really a "luxury" item if you are doing licensing passes or have a speed restriction.

Speedos that rear wheel driven aren't useable unless you know the slip and growth, front mount speed sounds like a good idea though.  Tach ain't reliable with an automatic, and 1000rpm = 52mph for me.

Someday I hope to not need one.  :evil:
Title: Re: GPS - What kinds are best?
Post by: Sumner on October 10, 2008, 03:04:36 PM
GPS is not really a "luxury" item if you are doing licensing passes or have a speed restriction...........

With the 25 mph window on the licensing passes you have quite a bit of leeway.  Even with a torque converter, you should know the slippage to be close enough and you should be fine using one of the spread sheet applications or on-line calculators like on my site.....

http://purplesagetradingpost.com/sumner/bvillecar/bville-spreadsheet-index.html

........... or other sites.

Thousands have licensed prior to GPS and I certainly have other places I plan on spending the money vs. a GPS,

Sum

Title: Re: GPS - What kinds are best?
Post by: McRat on October 10, 2008, 04:10:31 PM
GPS is not really a "luxury" item if you are doing licensing passes or have a speed restriction...........

With the 25 mph window on the licensing passes you have quite a bit of leeway.  Even with a torque converter, you should know the slippage to be close enough and you should be fine using one of the spread sheet applications or on-line calculators like on my site.....

http://purplesagetradingpost.com/sumner/bvillecar/bville-spreadsheet-index.html

........... or other sites.

Thousands have licensed prior to GPS and I certainly have other places I plan on spending the money vs. a GPS,

Sum



Don't buy one then.  I need one.  I was born with a 30lb right foot.  Hard to find shoes, but I suffer through it. :-D



Title: Re: GPS - What kinds are best?
Post by: McRat on October 10, 2008, 05:51:48 PM
Here's the calculator I use:  http://www.mcratracing.com/allisonratios.xls 
Factory redline occurred at 110mph, so the base values aren't correct anymore.
Title: Re: GPS - What kinds are best?
Post by: Cajun Kid on October 10, 2008, 09:13:47 PM
The speed sheets  from Sum's site work very well.... On pavement/concrete with no rear wheel slippage.

I checked it against my tach, my speedo and the ECTA timing slip.

My Speedo said 130, Sums chart said 128 and the actual timing slip was 126.98054

That is very acceptable spread.

Charles