 G Tech Pro Performance Meter |
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Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
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| pjhaun |
 Oct 7 2003, 06:53 PM
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#1
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Member  Group: Members Posts: 370 Joined: 21-August 03 Member No.: 1,055 Region Association: None  |
If anbody in the group is interested: Ebay has the G-Tech up for bid for $48.00. It Retails for $139.95. See it below.
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...item=2435959282 |
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Replies(1 - 14)
| Charles Deutsch |
Oct 7 2003, 07:59 PM
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#2
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Unregistered |
Thanks for pointing this out! It was too good of a deal to pass up so I bought one. A few years ago, I wrote a software program, using Simpson's rule of numerical integration, that performs the same calculations as this unit. (IMG:style_emoticons/default/mueba.gif)
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| drew365 |
Oct 7 2003, 08:20 PM
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#3
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These are the good old days! Group: Members Posts: 2,004 Joined: 29-December 02 From: Sunny So. Cal. Member No.: 37 |
I bought one about a year ago and have only played with it a few times. It has limited usefulness for a road racer. They need to increase the record time to be able to record more than a 1/4 mile.
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| Charles Deutsch |
Oct 7 2003, 08:25 PM
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#4
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Unregistered |
I only really want it to test rear wheel hp and acceleration times. I'm willing to spend $48 for that alone.
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| seanery |
Oct 7 2003, 08:34 PM
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#5
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
I'm scared, I've agreed with quite a few things Alfred/Jeff/Charles has said lately.
I bought one, too! |
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| redshift |
Oct 7 2003, 08:40 PM
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#6
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
I missed the hail of hell, but it seems to me he's not trying to be an ass.
M |
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| Aaron Cox |
Oct 7 2003, 08:42 PM
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#7
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
QUOTE(seanery @ Oct 7 2003, 07:34 PM) I'm scared, I've agreed with quite a few things Alfred/Jeff/Charles has said lately. so your a racist now? you stay awake thinking about math problems? (IMG:style_emoticons/default/wink.gif) (IMG:style_emoticons/default/laugh.gif) |
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| seanery |
Oct 7 2003, 08:44 PM
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#8
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
i hate whitie!
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| Aaron Cox |
Oct 7 2003, 08:44 PM
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#9
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
QUOTE(seanery @ Oct 7 2003, 07:44 PM) i hate whitie! (IMG:style_emoticons/default/laugh.gif) Kill Whitie!!!!! ROFL (IMG:style_emoticons/default/laugh.gif) |
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| Charles Deutsch |
Oct 7 2003, 08:52 PM
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#10
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Unregistered |
I once watched some news footage where some white, broad-minded, liberal, do-gooders were marching with a group of blacks to confront some racists and when the racists didn't show the blacks started beating on the whites that were marching with them! OMG, I laughed 'til I cried!
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| sj914 |
Oct 8 2003, 03:30 AM
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#11
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Senior Member Group: Members Posts: 805 Joined: 20-August 03 From: San Jose, CA Member No.: 1,053 |
Isn't that the old design. The new ones look much different.
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| Curvie Roadlover |
Oct 8 2003, 04:27 AM
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#12
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Two trunks are better than one! Group: Members Posts: 2,025 Joined: 29-December 02 From: Southeast Michigan Member No.: 42 |
QUOTE(Charles Deutsch @ Oct 7 2003, 05:59 PM) using Simpson's rule of numerical integration (IMG:style_emoticons/default/rolleyes.gif) |
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| Jeff Bonanno |
Oct 8 2003, 02:07 PM
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#13
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il dottore Group: Members Posts: 421 Joined: 30-April 03 From: San Diego, CA Member No.: 636 |
quote:
"To find values for difficult integrals, either the Trapezoid rule and Simpson's rule can be used. The trapezoid rule approximates area under curves using (logically enough) trapezoids, and Simpson's rule approximates using parabolas. Simpson's rule is generally more accurate and is exact if the polynomial being integrated is of degree three or less." Alfred, how many times have you thought "wouldn't it be nice if we just knew the form of the function?" |
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| daktaklakpak |
Oct 8 2003, 02:12 PM
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#14
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PC Game Freak Group: Members Posts: 34 Joined: 26-February 03 From: Greenville, SC Member No.: 360 |
That's what the gtech pro looks like the gtech competition version has the more high tech look to it.
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| Charles Deutsch |
Oct 8 2003, 02:23 PM
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#15
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Unregistered |
QUOTE(Jeff Bonanno @ Oct 8 2003, 01:07 PM) quote: "To find values for difficult integrals, either the Trapezoid rule and Simpson's rule can be used. The trapezoid rule approximates area under curves using (logically enough) trapezoids, and Simpson's rule approximates using parabolas. Simpson's rule is generally more accurate and is exact if the polynomial being integrated is of degree three or less." Alfred, how many times have you thought "wouldn't it be nice if we just knew the form of the function?" Jeff, The G-TECHPro's accelerometer provides an acceleration value every 2.5 milliseconds so that's the interval I used for the acceleration values in my program. The program's output (acceleration times, hp, etc.) agreed with the true values up to three decimal places. |
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