| rickeolis | 01-27-2005 06:23 PM |
Performance computers (like G-Tech, etc)???
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How many of you have them and what brands?
What is the thing you use most from them?
What is the thing you use most from them?
| afpdl | 01-27-2005 06:58 PM |
I have a gtech rr. I use it to log my runs and with some extra software you end up with this [url]http://conecrazy.org/forum/viewtopic.php?t=937[/url] its alot more usefull when there are 4 other good drivers in your area using the same thing at the same events though.
| Homemade WRX | 01-28-2005 12:35 AM |
for the formula SAE car at school we just ordered a Gtech RR to get some data...I'll let you know how we like it
| rickeolis | 01-28-2005 12:26 PM |
Thanks guys, I can afford one, but I'm wondering if it's just an expensive toy or if I can really use it to help lower my times... :confused:
| trhoppe | 01-28-2005 12:29 PM |
It will tell you where you made mistakes. Its WAY better if you have someone better then you codriving and you can tell where they were faster.
-Tom
-Tom
| rickeolis | 01-28-2005 01:03 PM |
Thanks Tom, that backs up my own theory. I use instructors as often as I can, because even though I have over 3 years experience, I'm only seeing things from MY point of view, and that is biased. Instructors help me see what I'm doing wrong even when I didn't realize I was!
I think the meters could help me know my cars gripping points before exceeding them, and help me learn how to go faster in a given consistant portion of the run. (Maybe a stopwatch could do that just the same!!)
I think the meters could help me know my cars gripping points before exceeding them, and help me learn how to go faster in a given consistant portion of the run. (Maybe a stopwatch could do that just the same!!)
| DrBiggly | 01-28-2005 07:03 PM |
rickeolis,
Split times are very helpful. Especially if you have a nice test n tune day and can get a 3rd party to log split times around the course for yourself and the other drivers. :)
Split times are very helpful. Especially if you have a nice test n tune day and can get a 3rd party to log split times around the course for yourself and the other drivers. :)
| rickeolis | 01-31-2005 01:19 PM |
I see what you mean, this way you can compare at each part of the track how you are doing against others.
Nice, thanks!
I hear that the G-Tech Pro is the one to go with, what is the consenus?
Nice, thanks!
I hear that the G-Tech Pro is the one to go with, what is the consenus?
| TyrannoSullyRex | 01-31-2005 03:14 PM |
[QUOTE=rickeolis]I see what you mean, this way you can compare at each part of the track how you are doing against others.
Nice, thanks!
I hear that the G-Tech Pro is the one to go with, what is the consenus?[/QUOTE]
G-Tech RR, the G-Tech Pro is the cheapy one.
this:
[img]http://www.gtechprostore.com/storeimages/RR%20small%20copy.gif[/img]
not:
[img]http://us1.webpublications.com.au/static/images/shop/hi/1290hi.jpg[/img]
Nice, thanks!
I hear that the G-Tech Pro is the one to go with, what is the consenus?[/QUOTE]
G-Tech RR, the G-Tech Pro is the cheapy one.
this:
[img]http://www.gtechprostore.com/storeimages/RR%20small%20copy.gif[/img]
not:
[img]http://us1.webpublications.com.au/static/images/shop/hi/1290hi.jpg[/img]
| makofoto | 02-01-2005 02:32 AM |
send me your email address and I will send you some files and graphs ... pretty cool ... you can compare runs ... see where you are losing/gaining time ... compare revs with lateral forces, etc. Discover that smooth through a corner is faster then on/off ...
| rickeolis | 02-01-2005 11:07 AM |
Thanks much, I sent you an e-mail
-Rick-
-Rick-
| whitenoise77 | 02-01-2005 12:14 PM |
is there alot of programing in the RR, like wheel/tire size, rpm range, things like that?
| TheRipler | 02-01-2005 12:24 PM |
Anyone know the difference (if there is one) between a Gtech RR, and a Gtech-pro Competition upgraded to the RR firmware?
| WillysPU | 02-01-2005 12:52 PM |
After spending some time reading through the Gtech forum it sounds like the pro comp model was phased out but the recent firmware upgrade gave it the same capablilities as the pro rr. Infact, there is a rant from one of the Gtech employees telling customers not to camplian about the length of time it took to get the firmware update out because with that upgrade they are essentially getting a new pro rr.
Apparently the pro comp is no longer produced but may still be available for sale at some retailers (summit racing?), they are about $50.00 cheaper than the rr and they come in a black case instead of the bling bling silver case.
[IMG]http://www.gtechpro.com/images/prod2.gif[/IMG]
My only question is if the pro comp has the same amount of memory as the rr to hold up to 2 hours of track data?
The software mentioned in the previous post is [url]http://www.slip-angle.com/[/url]
You can also download the manuals for the pro ss and the pro rr units from [url]http://www.gtechprosupport.com/support/index.htm[/url]
Jim
Apparently the pro comp is no longer produced but may still be available for sale at some retailers (summit racing?), they are about $50.00 cheaper than the rr and they come in a black case instead of the bling bling silver case.
[IMG]http://www.gtechpro.com/images/prod2.gif[/IMG]
My only question is if the pro comp has the same amount of memory as the rr to hold up to 2 hours of track data?
The software mentioned in the previous post is [url]http://www.slip-angle.com/[/url]
You can also download the manuals for the pro ss and the pro rr units from [url]http://www.gtechprosupport.com/support/index.htm[/url]
Jim
| TheRipler | 02-01-2005 01:19 PM |
[QUOTE=WillysPU]Infact, there is a rant from one of the Gtech employees telling customers not to camplian about the length of time it took to get the firmware update out because with that upgrade they are essentially getting a new pro rr.
...
My only question is if the pro comp has the same amount of memory as the rr to hold up to 2 hours of track data?
[/QUOTE]
This is my big question as well. I've got the Comp, and I doubt I would spend the money to upgrade unless the difference was huge. (say 30 min vs 2 hrs)
As far as not complaining about the length of time, I paid for this functionality 2 years ago. I've done a few 0-60 runs, but it's gone mostly unused, just a lump of plastic waiting for software. I can't say that I'm pleased with the G-tech software development process. ...but my tune could change once I get the new firmware loaded.
Thanks for the heads up, guys. I'd given up on this thing.
...
My only question is if the pro comp has the same amount of memory as the rr to hold up to 2 hours of track data?
[/QUOTE]
This is my big question as well. I've got the Comp, and I doubt I would spend the money to upgrade unless the difference was huge. (say 30 min vs 2 hrs)
As far as not complaining about the length of time, I paid for this functionality 2 years ago. I've done a few 0-60 runs, but it's gone mostly unused, just a lump of plastic waiting for software. I can't say that I'm pleased with the G-tech software development process. ...but my tune could change once I get the new firmware loaded.
Thanks for the heads up, guys. I'd given up on this thing.
| WillysPU | 02-01-2005 01:29 PM |
After you do the upgrade let us know how it works out. I believe Summit still has a few of the comps available.
Specifically, I would love to know if the comp is capable of 2hrs of data logging.
Thanks!
Jim
Specifically, I would love to know if the comp is capable of 2hrs of data logging.
Thanks!
Jim
| TheRipler | 02-01-2005 01:34 PM |
I'll see if I can't get it loaded up tonight when I get home. Assuming I can still find the AC adapter, that is..
| afpdl | 02-01-2005 04:38 PM |
[QUOTE=whitenoise77]is there alot of programing in the RR, like wheel/tire size, rpm range, things like that?[/QUOTE]
The only calibration involved is entering the vehicle wait and calibrating the rpms which takes about a min. Besides that its just plug in and level off with a launch in drag strip mode. It doesnt matter if your tire size changes because it measure accelration by gs over time not by comparing rpms to the gearing.
The only calibration involved is entering the vehicle wait and calibrating the rpms which takes about a min. Besides that its just plug in and level off with a launch in drag strip mode. It doesnt matter if your tire size changes because it measure accelration by gs over time not by comparing rpms to the gearing.
| TheRipler | 02-02-2005 01:38 AM |
Well, this is interesting...
I loaded the 4.0 RR firmware. It was a cumbersome process. I think they could have done without the Windows install portion of the firmware upgrade. How many times do they think I will need to upgrade to V4? :confused: ...but that's just a software nit-pick.
After the upgrade, I took it with me to our local Tues night subie meet, and recorded the way up and back. The calibration process seems easier than it was before, but it's been a long time since I used it. The clock was still really close to actual time, even after over a year of disuse. Timing would be very important to accurate measuremeants. So, I am very pleased about this.
The real question is, "How long can it go in Road Race Mode?"
With 20 samples per second, it says I have 1hr 31min available.
With 10 samples per second, it says I have 3hrs 2min available.
Right now, I'm recording a run at 20 samples per second on the desk to take up all available memory. It may be about 1.5hrs before I get the results.
I loaded the 4.0 RR firmware. It was a cumbersome process. I think they could have done without the Windows install portion of the firmware upgrade. How many times do they think I will need to upgrade to V4? :confused: ...but that's just a software nit-pick.
After the upgrade, I took it with me to our local Tues night subie meet, and recorded the way up and back. The calibration process seems easier than it was before, but it's been a long time since I used it. The clock was still really close to actual time, even after over a year of disuse. Timing would be very important to accurate measuremeants. So, I am very pleased about this.
The real question is, "How long can it go in Road Race Mode?"
With 20 samples per second, it says I have 1hr 31min available.
With 10 samples per second, it says I have 3hrs 2min available.
Right now, I'm recording a run at 20 samples per second on the desk to take up all available memory. It may be about 1.5hrs before I get the results.
| makofoto | 02-02-2005 01:43 AM |
What are you going to record over two hours ...
| TheRipler | 02-02-2005 01:44 AM |
six 20 minute sessions.
| makofoto | 02-02-2005 01:47 AM |
Then what ... seems like your graphs would be so crowded as to make comparisons difficult ... but I guess you can zoom in and enlarge specific sections ...
| afpdl | 02-02-2005 02:10 AM |
[QUOTE=makofoto]Then what ... seems like your graphs would be so crowded as to make comparisons difficult ... but I guess you can zoom in and enlarge specific sections ...[/QUOTE]
The idea is you time your sessions and brake it up into laps. If you dont time your laps then it will get a bit confusing.
The idea is you time your sessions and brake it up into laps. If you dont time your laps then it will get a bit confusing.
| makofoto | 02-02-2005 02:14 AM |
I guess you pick matching revs at a certain point "near" the start finish area to determine beginning and end of laps ?
| TheRipler | 02-02-2005 02:26 AM |
Lord afpdl - Could you do some similar tests with free space and file usage on your RR model?
Makofoto - If you had a transponder in the car, you could have accurate timing information on your laps. In theory, this should match up to the accurate timing of the accelerometer data.
Makofoto - If you had a transponder in the car, you could have accurate timing information on your laps. In theory, this should match up to the accurate timing of the accelerometer data.
| makofoto | 02-02-2005 02:32 AM |
Here are some screen snapshots showing a slowest 1st lap and a fastest 9th lap. With live screens you can compare G's at matching points of the course, compare revs to G's, compare time through sections, etc.
Green are areas of acceleration, red deceleration or sustaining. We are still learning to use all of the data!
Only the first off-set gate slalom shows up, course is run counter clockwise ... the other three slaloms don't really register. Brake areas seem too long in these renditions?
[IMG]http://images7.fotki.com/v149/photos/4/43793/836092/1strunSML-vi.jpg[/IMG]
[IMG]http://images7.fotki.com/v151/photos/4/43793/836092/9thrunSML-vi.jpg[/IMG]
These laps are with a STX WRX, note the relatively low cornering G's. :p
Green are areas of acceleration, red deceleration or sustaining. We are still learning to use all of the data!
Only the first off-set gate slalom shows up, course is run counter clockwise ... the other three slaloms don't really register. Brake areas seem too long in these renditions?
[IMG]http://images7.fotki.com/v149/photos/4/43793/836092/1strunSML-vi.jpg[/IMG]
[IMG]http://images7.fotki.com/v151/photos/4/43793/836092/9thrunSML-vi.jpg[/IMG]
These laps are with a STX WRX, note the relatively low cornering G's. :p
| makofoto | 02-02-2005 02:34 AM |
Transponder ... gotcha ... I thought you were trying to do it all with just the Gtech ... sorry if I missed that earlier on ...
| TheRipler | 02-02-2005 02:36 AM |
I don't think I mentioned it. In fact, I hadn't thought of it till you asked the question. I just got the software updated tonight. So, I really haven't had a chance to take it to the track yet. :lol:
I'm sure there are a lot more questions that haven't occured to me yet. :cool:
I'm sure there are a lot more questions that haven't occured to me yet. :cool:
| afpdl | 02-02-2005 02:48 AM |
[QUOTE=makofoto]
These laps are with a STX WRX, note the relatively low cornering G's. :p[/QUOTE]
Lot of improvment to be had under braking there. Spreading out the g graphs helps out a bit for analyzing them.
Ripler what do you want? Amount of time it will record at 20 samples per sec?
These laps are with a STX WRX, note the relatively low cornering G's. :p[/QUOTE]
Lot of improvment to be had under braking there. Spreading out the g graphs helps out a bit for analyzing them.
Ripler what do you want? Amount of time it will record at 20 samples per sec?
| TheRipler | 02-02-2005 02:55 AM |
I'm testing memory usage predictions vs memory usage.
How much time do you currently have available, and at what sampling rate?
How much time do you have used with all current files added together?
With only a 1 second test file on the G-tech:
How much time do you have available with 20 second sampling?
With 10?
What is the longest file you can record with 20 second sampling?
With 10?
I'm going to have to wait until I get a chance to records multiple datasets before I get a chance to answer the first two questions.
The largest file I can record at 20 samples per second, with the unit sitting on a desk, is 1:30:53. My dummy file, used because I couldn't view time available without a file there, was 0:00:02.
I'll erase this, and start a 10 sample/sec log. See what happens.
How much time do you currently have available, and at what sampling rate?
How much time do you have used with all current files added together?
With only a 1 second test file on the G-tech:
How much time do you have available with 20 second sampling?
With 10?
What is the longest file you can record with 20 second sampling?
With 10?
I'm going to have to wait until I get a chance to records multiple datasets before I get a chance to answer the first two questions.
The largest file I can record at 20 samples per second, with the unit sitting on a desk, is 1:30:53. My dummy file, used because I couldn't view time available without a file there, was 0:00:02.
I'll erase this, and start a 10 sample/sec log. See what happens.
| afpdl | 02-02-2005 04:25 AM |
Little over 1:31 with 20 per sec. Id say they are about the same.
| TheRipler | 02-02-2005 04:30 AM |
Sounds like the few remaining Competition models may be a bargain. Although, the orange display would go better with my dash. :)
| WillysPU | 02-02-2005 11:56 AM |
Thanks for all the comparison data of the procomp and rr. Sounds like they are indeed the same unit under their skins and with the firmware upgrade.
You guys are right on with the idea of using a timing device to track your laps and then editing the gtech file into laps for road racing analysis. As long as your stop watch or transponder is working you should be able to cut the data into individual laps. I understand that the slipangle software will not allow you to overlay laps on top of each other but you can open several instances of the software to compare individual laps.
Thanks for the quick research on the procomp vs rr.
Jim
You guys are right on with the idea of using a timing device to track your laps and then editing the gtech file into laps for road racing analysis. As long as your stop watch or transponder is working you should be able to cut the data into individual laps. I understand that the slipangle software will not allow you to overlay laps on top of each other but you can open several instances of the software to compare individual laps.
Thanks for the quick research on the procomp vs rr.
Jim
| afpdl | 02-02-2005 06:46 PM |
[QUOTE=WillysPU] I understand that the slipangle software will not allow you to overlay laps on top of each other but you can open several instances of the software to compare individual laps.
Jim[/QUOTE]
Yup thats how it works. Honestly there would be no point in overlapping the laps, since its graphing on gs and not the actuall location of the car all of your runs would be a little different if you overlapped them. It doesnt graph a perfect rendition of the track each time the only real purpose of the graphin is so you can get an idea on where you are on the course.
Jim[/QUOTE]
Yup thats how it works. Honestly there would be no point in overlapping the laps, since its graphing on gs and not the actuall location of the car all of your runs would be a little different if you overlapped them. It doesnt graph a perfect rendition of the track each time the only real purpose of the graphin is so you can get an idea on where you are on the course.
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