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GlennCMC70
10-05-2009, 11:20 AM
i want more...... show me the action!

jeremiahkellam
10-05-2009, 11:31 AM
Race 2

http://www.vimeo.com/6909756

GlennCMC70
10-05-2009, 11:53 AM
you guys had a pretty damn good race.

AllZWay
10-05-2009, 12:53 PM
you guys had a pretty damn good race.

Absolutely... It was tough as heck. :shock:

Nice video Jeremiah.

Crumpacker
10-05-2009, 01:42 PM
here's some more action from race 2

http://www.vimeo.com/6904506

Fbody383
10-05-2009, 02:09 PM
here's some more action from race 2

http://www.vimeo.com/6904506

So, uh... just where did I start braking in 11 the last time?

dayum rookies.

EDIT: sarcasm can leave a mark. i'm completely comformtable that Sam drove a great couple laps and likely would have gotten past in another one or two trys.

Crumpacker
10-05-2009, 02:35 PM
So, uh... just where DID you start braking in 11 the last time?

rookies.


yeah, yeah. :wink: I think my braking point was fine, maybe just a hair late. I expected you to fully track out of 11 and I think you over-slowed expecting me to run side by side through 11&12.

I was overtaking (or trying to), I'll take blame for the close call. :oops:

David Love AI27
10-05-2009, 02:47 PM
here's some more action from race 2

http://www.vimeo.com/6904506

So, uh... just where DID you start braking in 11 the last time?

rookies.

BRAKES?!? don need no stinkin' brakes, man!

Great video... Error at 8.20-8.25 please edit

mitchntx
10-05-2009, 02:48 PM
here's some more action from race 2

http://www.vimeo.com/6904506

So, uh... just where DID you start braking in 11 the last time?

rookies.

Ka-Chow! ... almost.

1st time shame on me ...

Crumpacker
10-05-2009, 03:48 PM
http://i998.photobucket.com/albums/af110/samcrumpacker/ecr09nasa024.jpg

http://i998.photobucket.com/albums/af110/samcrumpacker/ecr09nasa007.jpg

http://i998.photobucket.com/albums/af110/samcrumpacker/ecr09nasa031.jpg

jeremiahkellam
10-05-2009, 03:57 PM
Kind of off topic, but since some pictures are coming up now, If anybody got a picture of the Panoz running either DE or TT, I need it.

ShadowBolt
10-05-2009, 03:59 PM
you guys had a pretty damn good race.

Absolutely... It was tough as heck. :shock:

Nice video Jeremiah.

I gotta get that boy to teach me those lines he used to stay in front of you. Looks like he was where you wanted to be almost the whole race. And if you had screwed up just a little the 18 was all over you.

JJ

AllZWay
10-05-2009, 04:06 PM
you guys had a pretty damn good race.

Absolutely... It was tough as heck. :shock:

Nice video Jeremiah.

I gotta get that boy to teach me those lines he used to stay in front of you. Looks like he was where you wanted to be almost the whole race. And if you had screwed up just a little the 18 was all over you.

JJ

Oh I screwed up plenty....but unfortunately for Jeremiah... I was blocking the track while I was slideways and wasn't able to use it to his advantage. :shock:

jeremiahkellam
10-05-2009, 05:11 PM
I lost some sleep Saturday night replaying that race in my mind. I would definitly try something different next time I'm in a situation like that. :wink:

David Love AI27
10-05-2009, 05:20 PM
What R U guys using to edit vid from a GoPro?

Fbody383
10-05-2009, 05:41 PM
I was overtaking (or trying to), I'll take blame for the close call. :oops:

Wrong conclusion; PM coming your way.

GlennCMC70
10-05-2009, 05:50 PM
What R U guys using to edit vid from a GoPro?

Pinacle (sp?) Studio 12.

GlennCMC70
10-05-2009, 08:17 PM
R2 from the back (2nd to last).
sorry Gary. :(
http://vimeo.com/6916989

jeffburch
10-05-2009, 09:49 PM
R2 from the back (2nd to last).
sorry Gary. :(
http://vimeo.com/6916989

Wow, save this vid as a perfect illustration of what 100 lbs looks like.
2 car lengths per straight.

jb

GlennCMC70
10-05-2009, 09:51 PM
R2 from the back (2nd to last).
sorry Gary. :(
http://vimeo.com/6916989

Wow, save this vid as a perfect illustration of what 100 lbs looks like.
2 car lengths per straight.

jb
not really. a few events back i added way too much caster tot he car and it just will not turn. kills my corner speed. he was on the gas sooner and from a higher speed to start.

Todd Covini
10-05-2009, 10:37 PM
Great grid pics!!!
Something to show the other regions what AI/CMC really looks like!!! :twisted:

Rob Liebbe
10-06-2009, 07:03 AM
Race 1 from the Liebbe-mobile.

http://www.vimeo.com/6919798

GlennCMC70
10-06-2009, 07:55 AM
wow, on the outside of T1? what was i thinking?

"Prior to entering a racecar, he notifies the Law's of Physics that he will not be abiding by their rules."

Crumpacker
10-06-2009, 10:55 AM
Race 4 uploaded - http://vimeo.com/6918401

BlueFirePony
10-06-2009, 11:57 AM
Race 4 uploaded - http://vimeo.com/6918401
Nice clean race there Sam! Congrats on the points and it was fun runnin' with you while I could :)

michaelmosty
10-06-2009, 03:41 PM
R2 from the back (2nd to last).
sorry Gary. :(
http://vimeo.com/6916989

Wow, save this vid as a perfect illustration of what 100 lbs looks like.
2 car lengths per straight.

jb
3.55's vs. 3.42's also exit speed.
If you notice, the big pull comes at the very beginning of the straight and falls off as we continue down it.
For as attentive as you are I'm suprised you missed this, I guess 100 lbs. is skewing your view. :?

AI#97
10-06-2009, 04:25 PM
R2 from the back (2nd to last).
sorry Gary. :(
http://vimeo.com/6916989

Wow, save this vid as a perfect illustration of what 100 lbs looks like.
2 car lengths per straight.

jb
3.55's vs. 3.42's also exit speed.
If you notice, the big pull comes at the very beginning of the straight and falls off as we continue down it.
For as attentive as you are I'm suprised you missed this, I guess 100 lbs. is skewing your view. :?

I thought Burch just got a 3200lb weight break...? Guess that rocking chair is needing some parity adjustments?! ;) poke...poke....

jeffburch
10-06-2009, 06:06 PM
For as attentive as you are I'm suprised you missed this, I guess 100 lbs. is skewing your view. :?

No need to get personal.
If you can live with the weight break that's all that matters.

Jb

BlueFirePony
10-06-2009, 08:14 PM
Sooooo..speaking of video! Any chance any of my fans took video of my mud slingin' exploits? ;)

michaelmosty
10-06-2009, 10:49 PM
For as attentive as you are I'm suprised you missed this, I guess 100 lbs. is skewing your view. :?

If you can live with the weight break that's all that matters.

Jb
Cool, we're good then.

Rob Liebbe
10-08-2009, 08:41 AM
Race 2 from my point of view.

Good racing all around, David Frances making a strong appearance early, then kinda boring in the middle, but good racing between Mosty, Landrum and myself after the restart. Mosty throws it away on the last turn. :o

http://www.vimeo.com/6957247

Rob Liebbe
10-08-2009, 09:51 AM
Race 3 in the rain

http://www.vimeo.com/6963984

Alien
10-08-2009, 07:19 PM
Practice from ... uh... a fly's point of view?

http://www.youtube.com/watch?v=g70n7IOcQpA

mitchntx
10-08-2009, 08:35 PM
Awesome!

AI#97
10-08-2009, 09:02 PM
How in the world does that tire stay on the rim?!!! Stiffer sidewall my arse!!!

Shortcutsleeping
10-08-2009, 09:11 PM
WAHOO!
I snapped that cam on the mount for the tire shot and wasnt sure it was pointed right OR that it would stay on OR that it would get anything worth a crap. Coolio.

And yeah, that tire is WAY deflecting...sheesh...


Costas
cars and such...

GlennCMC70
10-08-2009, 09:46 PM
nice....... i'm officially freaked out.

AllZWay
10-09-2009, 08:47 AM
Cool video Gary..... we sure do put a lot of faith in those beads. :shock:

NickV
10-09-2009, 08:54 AM
Practice from ... uh... a fly's point of view?

http://www.youtube.com/watch?v=g70n7IOcQpA

That came out awwwwwwwwwwesome!!!

ShadowBolt
10-09-2009, 09:05 AM
Think what that would look like in turn two at TWS.


JJ

Rob Liebbe
10-09-2009, 09:05 AM
Race 4 - partial

I almost take out the field at 2:30-ish.

http://vimeo.com/6981353

Cool tire video Gary.

AI#97
10-09-2009, 09:09 AM
Think what that would look like in turn two at TWS.


JJ

Or T7!!!! I actually think that is what caused my off there in August...I was trying a new even lower starting air pressure and I think it might have been too low, flexed the bead and lost more air and went down on me right at the wrong time.

MikeP99Z
10-09-2009, 10:43 AM
I think that's exactly what caused your off Matt. Combined with the fact that is was a brand new rim with a slick surface at the bead mount.

ShadowBolt
10-09-2009, 10:46 AM
Think what that would look like in turn two at TWS.


JJ

Or T7!!!! I actually think that is what caused my off there in August...I was trying a new even lower starting air pressure and I think it might have been too low, flexed the bead and lost more air and went down on me right at the wrong time.

Turn two puts a lot of pressure on the bead but turn seven shocks it hard. I think turn two pulls more G's but it's just a guess.

JJ

AllZWay
10-09-2009, 11:04 AM
Race 4 - partial

I almost take out the field at 2:30-ish.

http://vimeo.com/6981353


You were just a little sLideways. :lol:

AI#97
10-09-2009, 12:28 PM
I think that's exactly what caused your off Matt. Combined with the fact that is was a brand new rim with a slick surface at the bead mount.

Yeah...live and learn. I guess 19lbs wasn't enough air! :oops:

RichardP
10-09-2009, 12:50 PM
Turn two puts a lot of pressure on the bead but turn seven shocks it hard. I think turn two pulls more G's but it's just a guess.

JJ

My data system shows approx 1.2 G's in turn two and 1.6 G's in turn 7 (without aero)...


Richard P.

Rob Liebbe
10-09-2009, 01:13 PM
Richard,

What system are you using to measure lateral G's and is it GPS based?

ShadowBolt
10-09-2009, 01:59 PM
Turn two puts a lot of pressure on the bead but turn seven shocks it hard. I think turn two pulls more G's but it's just a guess.

JJ

My data system shows approx 1.2 G's in turn two and 1.6 G's in turn 7 (without aero)...


Richard P.

I would have bet it was the other way around. The g force does not last long in turn seven but it is heavy.


JJ

RichardP
10-09-2009, 02:32 PM
What system are you using to measure lateral G's and is it GPS based?

It's a Race-technology DL1. It uses both GPS and accelerometers. I’m not sure the exact math it uses to correlate the difference between the two but it does have some explanation of that in the manual. It also allows you to change the parameters of that when analyzing the data.

I believe the DL1 only has a two axis accelerometer. I'm not sure what it does with roll. It's really not clear what you are actually getting with an on-camber/uphill turn like 7 at TWS.

The old G-Analyst I have used a three axis accelerometer so it could resolve roll with a little internal math. It made you put in deg/G roll assumption based on the specifics of your car so there was some room for error there. It also wouldn’t have fully resolved the on-camber/uphill issue either.


Richard P.

RichardP
10-09-2009, 02:34 PM
I would have bet it was the other way around.


Maybe you should try going faster in 7...


:D

Richard P.

Rob Liebbe
10-09-2009, 02:51 PM
My experience with pure GPS-based equipment is that a banked turn can trick the GPS into a higher lateral accel. We figured this out when running a Toyota 4-Runner on a high-bank oval and returned something around 1.6 G's lateral acceleration. The radius of the turn from a top view is what the GPS measures and then along with speed calculates lateral accel. The banked turn allowed higher speed than what would be possible on a flat turn of the same radius. The extreme example would be a centrifuge with a vertical wall spinning at high speed. An object will stick to the wall without any object-based lateral acceleration - ok just enough to cancel the pull of gravity and surface friction. Remember the "Spindletop" ride at Six Flags?

So - careful with your Turn 7 numbers. That turn is a lot of fun though.

jeremiahkellam
10-09-2009, 03:05 PM
Think what that would look like in turn two at TWS.


JJ

Or T7!!!! I actually think that is what caused my off there in August...I was trying a new even lower starting air pressure and I think it might have been too low, flexed the bead and lost more air and went down on me right at the wrong time.

Turn two puts a lot of pressure on the bead but turn seven shocks it hard. I think turn two pulls more G's but it's just a guess.

JJ

Turn 2 going CCW pulls about 1.0 - 1.1 lateral G's for a few seconds, turn 7 going CW pulls over 1.3 for less than half a second according to Traqmate

RichardP
10-09-2009, 03:22 PM
My experience with pure GPS-based equipment is that a banked turn can trick the GPS into a higher lateral accel. We figured this out when running a Toyota 4-Runner on a high-bank oval and returned something around 1.6 G's lateral acceleration. The radius of the turn from a top view is what the GPS measures and then along with speed calculates lateral accel. The banked turn allowed higher speed than what would be possible on a flat turn of the same radius. The extreme example would be a centrifuge with a vertical wall spinning at high speed. An object will stick to the wall without any object-based lateral acceleration - ok just enough to cancel the pull of gravity and surface friction. Remember the "Spindletop" ride at Six Flags?

So - careful with your Turn 7 numbers. That turn is a lot of fun though.


So the real question is, what exactly are you trying to measure? Is it acceleration in the frame of the vehicle body (what an accelerometer fixed to the car measures), lateral acceleration parallel to the road surface (what people normally assume), or acceleration normal to the earth’s axis (what a GPS measures)? They are all completely valid measurements within their frame of measurement.

I believe the DL1 generically uses the accelerometers for loading and the GPS as a positional correction from the acceleration errors.

BTW, the G-Analyst also gave 1.4 numbers through turn 7 back when my car was much less developed…

Richard P.

BlueFirePony
10-09-2009, 03:25 PM
Race 4 - partial

I almost take out the field at 2:30-ish.

http://vimeo.com/6981353


You were just a little sLideways. :lol:
Add another 400lbs, 50hp and 70 ft. lbs into that equation and that little slideways was me doing a 720 into the mud a few minutes later. :(
Just glad I did it from the back of the pack - would have cleared the path to the turn - not in a good way.
I hit that same spot the second time more carefully and still got the wag and spun but I was ready enough to recover and keep from going off.
Dear Santa - please give me more seat time in 2010 and a decent set of tires.

RichardP
10-09-2009, 03:25 PM
Turn 2 going CCW pulls about 1.0 - 1.1 lateral G's for a few seconds, turn 7 going CW pulls over 1.3 for less than half a second according to Traqmate


I believe those numbers, from a relative standpoint. There is significantly different dynamic loading between on-camber/up hill and on-camber/down hill.


Richard P.

David Love AI27
10-09-2009, 03:36 PM
Think what that would look like in turn two at TWS.


JJ

Or T7!!!! I actually think that is what caused my off there in August...I was trying a new even lower starting air pressure and I think it might have been too low, flexed the bead and lost more air and went down on me right at the wrong time.

Turn two puts a lot of pressure on the bead but turn seven shocks it hard. I think turn two pulls more G's but it's just a guess.

JJ

Turn 2 going CCW pulls about 1.0 - 1.1 lateral G's for a few seconds, turn 7 going CW pulls over 1.3 for less than half a second according to Traqmate

According to my butt... there is a lot of force towards the outside of T7 going both clockwise and counterclockwise...

David Love AI27
10-09-2009, 03:39 PM
My experience with pure GPS-based equipment is that a banked turn can trick the GPS into a higher lateral accel. We figured this out when running a Toyota 4-Runner on a high-bank oval and returned something around 1.6 G's lateral acceleration. The radius of the turn from a top view is what the GPS measures and then along with speed calculates lateral accel. The banked turn allowed higher speed than what would be possible on a flat turn of the same radius. The extreme example would be a centrifuge with a vertical wall spinning at high speed. An object will stick to the wall without any object-based lateral acceleration - ok just enough to cancel the pull of gravity and surface friction. Remember the "Spindletop" ride at Six Flags?

So - careful with your Turn 7 numbers. That turn is a lot of fun though.


So the real question is, what exactly are you trying to measure? Is it acceleration in the frame of the vehicle body (what an accelerometer fixed to the car measures), lateral acceleration parallel to the road surface (what people normally assume), or acceleration normal to the earth’s axis (what a GPS measures)? They are all completely valid measurements within their frame of measurement.

I believe the DL1 generically uses the accelerometers for loading and the GPS as a positional correction from the acceleration errors.

BTW, the G-Analyst also gave 1.4 numbers through turn 7 back when my car was much less developed…

Richard P.

you two need to get a room...

Alien
10-09-2009, 04:58 PM
Think what that would look like in turn two [and 7] at TWS.


JJ
Remind me and I'll show you next August! :D

Crumpacker
10-09-2009, 05:08 PM
LOL @ David and his "ass based" g-meter

That tire deflection video is scary... imagine the strain on the bead when you're running 10/10ths and clip the curb at 7! :shock:

mitchntx
10-09-2009, 05:11 PM
That tire deflection video is scary... imagine the strain on the bead when you're running 10/10ths


Sam just zinged Gary and didn't even know it. The boy is a natural ...

edrock96GT
10-09-2009, 05:25 PM
I've been using a G-tech pro Competition (2001 model). It has LEDs that blink progressively faster as you get closer to whatever preset G amount you set it for. Good for knowing what you are pulling at a quick glance. If I remember right, you can get it to save a run and view it later, but that may be just for the 1/4 mile and dyno runs.

Plus it doubles as a tach.

...the dyno and 1/4 mile features kinda suck though.

cobra132
10-10-2009, 10:46 AM
Gary, The same shot of an RA1 would be very interesting. FMR

JJordan
10-13-2009, 07:43 PM
Race 3 - Jerry

http://www.vimeo.com/7053852

-Jay

ShadowBolt
10-14-2009, 09:25 AM
Check out the 18 and the 22 at turn one after the re-start. That was fun!


JJ

marshall_mosty
10-18-2009, 03:52 PM
Glenn, getting it done the "hard" way... :oops:

http://photos-e.ak.fbcdn.net/hphotos-ak-snc1/hs207.snc1/7419_1064610434875_1814430887_144094_865179_n.jpg