Lateral G load in an S4
#16
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Good data Swaybar - I run the AIM data acquistion system but am very impressed with your display. Sweet system and great displays. It's easy to read the data and make assumptions - but unless you have the driver input - it's basically nothing but numbers.
Are you racing your car?
Chuck
83 Kiln Red 928S
Are you racing your car?
Chuck
83 Kiln Red 928S
#17
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Originally Posted by SwayBar
I don't believe so since there is nothing to calibrate. Nothing more than proper orientation of the unit is necessary for the accelerometers.
Originally Posted by SwayBar
Perhaps that is because the left hand turns are much tighter thus slower (..5, 6, and 8), except for Turn 13?
Now that I've re-read this, I'm sure driver-error has something to do with it too!![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Now that I've re-read this, I'm sure driver-error has something to do with it too!
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Originally Posted by SwayBar
The best portion for sustained on the posted chart would be foot-marker 12,500 to 15,000 which represents the Carousel, where the GT sustained between 1.20 and 1.44 G's through it. For comparison, my Z06 sustained slightly higher, and did a max of 1.51 G's; both at the apex which is approximately the middle of the rumble strip.
Originally Posted by SwayBar
With the software, I can blow-up any portion of the track; so instead of looking at 21,000 feet of track in a chart with virtually zero resolution, I can look at 100 feet of track with lots of resolution and curve definition. Maybe I'll do that with the Carousel tonight and post the screenshots.
Originally Posted by SwayBar
You may be correct, but from everything I've read, there is no need to factor anything for flat or banked curves due to the unit using the GPS in conjuction with the accelerometers.
Originally Posted by SwayBar
No doubt; I'm very happy with it, and recommend it to anyone who's looking for a track data-logger.
Those were astute observations/comments; do you drive or hang-out at the track?
I've always had some problems with the numbers that the Gmeters put out. I find them to be good at comparing your laps to previous laps you have run but there are way too many variables to make the absolute numbers mean much. Like I've said, the lean of a car, the tilt of a course, etc. can have noticeable affects on the numbers.
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Originally Posted by Richard S
Tim, what's wrong with averaging 135mph through the canyon?....It just means you get to go faster on the rest of the course!!!!
Rich
Rich
Here's my plan for the return leg:
162 mph avg for the first 28.5 miles
139 mph avg in the Gap (10 miles)
179 mph avg to the finish (8 miles)
This should give us our 160 mph avg. Just don't tell anyone about the plan....
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Hi Tim:
You can easily measure the forces yourself with the new Butt-Dyno. No more wondering, if or how much you "can"... Best of all: It's just $399.95:
http://kalecoauto.com/index.php?main...products_id=41
If it turns out you are low on power, you can make some simple adjustments with this:
http://kalecoauto.com/index.php?main...products_id=30
But if you are lacking in g-forces, they also have a simple lowering kit that will lower your center of gravity. Just don't try this on your boat...
http://kalecoauto.com/index.php?main...products_id=11
You can easily measure the forces yourself with the new Butt-Dyno. No more wondering, if or how much you "can"... Best of all: It's just $399.95:
http://kalecoauto.com/index.php?main...products_id=41
If it turns out you are low on power, you can make some simple adjustments with this:
http://kalecoauto.com/index.php?main...products_id=30
But if you are lacking in g-forces, they also have a simple lowering kit that will lower your center of gravity. Just don't try this on your boat...
http://kalecoauto.com/index.php?main...products_id=11
![ducking](https://rennlist.com/forums/graemlins/icon107.gif)
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Originally Posted by jorj7
Rich,
Here's my plan for the return leg:
162 mph avg for the first 28.5 miles
139 mph avg in the Gap (10 miles)
179 mph avg to the finish (8 miles)
This should give us our 160 mph avg. Just don't tell anyone about the plan....
Here's my plan for the return leg:
162 mph avg for the first 28.5 miles
139 mph avg in the Gap (10 miles)
179 mph avg to the finish (8 miles)
This should give us our 160 mph avg. Just don't tell anyone about the plan....
![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
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Rich
#21
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Originally Posted by cooleyjb
Also you need to be able to factor out the lean of the car and tilt of the corners to get true readings. For example the end of the carousel falls away and 13 is on camber for a good chunk of it. For every degree the car leans and track is from level it is a difference of .011 on the readout.
#22
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As an aside, GPS can be used to tell you some very interesting stuff. Vboxes with the dual anttenae option can calculate Ax, Ay, and body slip angle very accurately. I don't think the system in question is that sophisticated though. Still looks to be very useful.
#23
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GPS is being used by Excavating companies nowadays to very accurately calculate the cubic yards of material to be moved at a jobsite before bidding on the contract. You will see alot of construction equipement with Trimble or Topcon GPS systems on them for this purpose and also for very fine grading applications.
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No need to use butt dyno anymore. These will not record G's AFAIK but are othervise fun toys.
http://www.racechrono.com/?lang=en
http://www.tempes.com/index.html
http://www.racechrono.com/?lang=en
http://www.tempes.com/index.html
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Originally Posted by jorj7
Rich,
Here's my plan for the return leg:
162 mph avg for the first 28.5 miles
139 mph avg in the Gap (10 miles)
179 mph avg to the finish (8 miles)
This should give us our 160 mph avg. Just don't tell anyone about the plan....
Here's my plan for the return leg:
162 mph avg for the first 28.5 miles
139 mph avg in the Gap (10 miles)
179 mph avg to the finish (8 miles)
This should give us our 160 mph avg. Just don't tell anyone about the plan....
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
![Big Grin](https://rennlist.com/forums/images/smilies/biggrin.gif)
Nicole,
Are you now handling the Kaleco Auto products? Might be a good addition to your already excellent product line. If they make a lateral accelerometer to interface with the butt dyno I would be very interested getting one for Rich. He would have to download the data of course cause I'm not touching it after he goes through the canyon with George.
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#26
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Originally Posted by Tahoe Shark
Nicole,
Are you now handling the Kaleco Auto products? Might be a good addition to your already excellent product line. If they make a lateral accelerometer to interface with the butt dyno I would be very interested getting one for Rich. He would have to download the data of course cause I'm not touching it after he goes through the canyon with George.![Big Grin](https://rennlist.com/forums/images/smilies/biggrin.gif)
Are you now handling the Kaleco Auto products? Might be a good addition to your already excellent product line. If they make a lateral accelerometer to interface with the butt dyno I would be very interested getting one for Rich. He would have to download the data of course cause I'm not touching it after he goes through the canyon with George.
![Big Grin](https://rennlist.com/forums/images/smilies/biggrin.gif)
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#27
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Just discovered this linked from another car forum I read..
The Nintendo Wii - their latest game console, has a controller with a 3-axis g-meter in it, accurate to 2 decimal places. Someone's written a script to get this data into their PC and plotting it in Excel.
If anyone has access to a Nintendo Wii and a PC, looks like its not too hard to measure your lateral G's:
http://forums.vwvortex.com/zerothread?id=3362586
Check out the spreadsheet linked from the post.. the lateral G's are in column D on the output sheet.
Edit/disclaimer: There is some doubt about the overall accuracy or margin for error on wii console so this is mainly for interest value
The Nintendo Wii - their latest game console, has a controller with a 3-axis g-meter in it, accurate to 2 decimal places. Someone's written a script to get this data into their PC and plotting it in Excel.
If anyone has access to a Nintendo Wii and a PC, looks like its not too hard to measure your lateral G's:
http://forums.vwvortex.com/zerothread?id=3362586
Check out the spreadsheet linked from the post.. the lateral G's are in column D on the output sheet.
Edit/disclaimer: There is some doubt about the overall accuracy or margin for error on wii console so this is mainly for interest value
Last edited by Hilton; 08-01-2007 at 07:18 AM.