# NYSpeed community project?
**URL:** https://forums.speedlife.net/t/nyspeed-community-project/51719
**Category:** NYSpeed Off Topic
**Created:** [July 18, 2008, 9:47am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719 "2008-07-18T09:47:02Z")
**Posts on this page:** 20
**Page:** 2
### Author:  [@BuickGN](https://forums.speedlife.net/u/BuickGN)
#### Post date: [July 18, 2008, 10:03am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/21 "2008-07-18T10:03:18Z")
> [@chino](#):
>
> i like this idea, dunno what the project could be though.
>
> i do think it should be mac based.
yeah then it would keep everyone busy fixing them.
a broken mac community project.
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### Author:  [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)
#### Post date: [July 18, 2008, 10:03am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/22 "2008-07-18T10:03:23Z")
> [@chino](#):
>
> i do think it should be mac based.
Fuck you faggot
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### Author:  [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)
#### Post date: [July 18, 2008, 10:04am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/23 "2008-07-18T10:04:04Z")
> [@chino](#):
>
> i like this idea, dunno what the project could be though.
>
> i do think it should be mac based.
lol
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### Author:  [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [July 18, 2008, 10:04am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/24 "2008-07-18T10:04:25Z")
> [@newman](#):
>
> it could totally be done.
>
> change in OD yields different mile per revolution, cross ref with GPS.
>
> unless your suspension is totally shot and your wheels leave the pavement at every bump…
>
> (i once saw a vehicle who’s wheel was so out of balance that it was leaving the ground every rotation… the ride had to be insanely bad)
so the computer would have to also have to be aware of what gear the car was in to be able to calculate the actual rpms of the axles?
> [@ILCisDEAD](#):
>
> Use navigation system that everyone has that plots out where the police are…
>
> Obviously there isn’t a way to track the police, but could be a button you push everytime you see a cop takin pictures and load it to a database and others with the software could see where someone said there is an officer
>
> Interest in any kind of project really. I’m currently working on full data logging for just about every system for my car. IE Brake temps, tire temps, tread wear, rpm… much more indepth than that but just the general idea
The software for this would not be hard, but how do you plan to design and engineer the hardware aspect of this project? Using existing hardware?
I would actually be more than willing to help with the software aspect of this.
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### Author:  [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)
#### Post date: [July 18, 2008, 10:05am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/25 "2008-07-18T10:05:05Z")
> [@newman](#):
>
> it could totally be done.
>
> change in OD yields different mile per revolution, cross ref with GPS.
>
> unless your suspension is totally shot and your wheels leave the pavement at every bump…
only problem with that would be in a race car, there would be a decent amount of slide…
Although that drift box is pretty friggin accurate. It could definitely do it on the straights
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### Author:  [@justa4door](https://forums.speedlife.net/u/justa4door)
#### Post date: [July 18, 2008, 10:05am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/26 "2008-07-18T10:05:33Z")
:newman: why am i ignored here … you guys are as bad as my wife
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### Author:  [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)
#### Post date: [July 18, 2008, 10:05am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/27 "2008-07-18T10:05:59Z")
> [@boardjnky4](#):
>
> so the computer would have to also have to be aware of what gear the car was in to be able to calculate the actual rpms of the axles?
>
> The software for this would not be hard, but how do you plan to design and engineer the hardware aspect of this project? Using existing hardware?
maybe a plugin for TOMTOM or something along those lines?
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### Author:  [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)
#### Post date: [July 18, 2008, 10:06am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/28 "2008-07-18T10:06:24Z")
> [@justa4door](#):
>
> :newman: why am i ignored here … you guys are as bad as my wife
lol jailbait park FTW
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### Author:  [@justa4door](https://forums.speedlife.net/u/justa4door)
#### Post date: [July 18, 2008, 10:07am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/29 "2008-07-18T10:07:20Z")
no really any park… you know how much we could all raise money wise with 50/50’s or anything like that
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### Author:  [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)
#### Post date: [July 18, 2008, 10:07am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/30 "2008-07-18T10:07:37Z")
> [@boardjnky4](#):
>
> so the computer would have to also have to be aware of what gear the car was in to be able to calculate the actual rpms of the axles?
No revolutions per tire/gps assumed revolutions per tire… difference in percentage = the amount of tread left.
> [@boardjnky4](#):
>
> The software for this would not be hard, but how do you plan to design and engineer the hardware aspect of this project? Using existing hardware?
More like a plugin to preexisting software, that would be the easiest way IMO. Of course the first set would be for one specific GPS type, but I’m sure the other nav softwares are hackable and do able too
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### Author:  [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)
#### Post date: [July 18, 2008, 10:08am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/31 "2008-07-18T10:08:15Z")
true… not to mention it would be OURS, right? Local meeting area and such for cruises/bbq’s/etc
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### Author:  [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [July 18, 2008, 10:08am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/32 "2008-07-18T10:08:27Z")
> [@Dr.Stevil](#):
>
> maybe a plugin for TOMTOM or something along those lines?
I was more referencing how you would get the datalog info from the ECU. coolant temps, AF ratios, oil pressure, fuel pressure, etc…
You would need something to interface with the ECU.
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### Author:  [@newman](https://forums.speedlife.net/u/newman)
#### Post date: [July 18, 2008, 10:08am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/33 "2008-07-18T10:08:48Z")
> [@ILCisDEAD](#):
>
> IDK what the fuck newman is saying… but GPS seems a little ridic. It could just be a change in distances to the outside of the wheel to the inside of the tread. Kind of bite ya in the ass if you were using slicks though
>
> or use strut extension to make take a distance reading from when the tire is in a neutral position. There are a ton of ways
yeah, but how are you going to measure that distance?
optical sensor? a tracking wheel? it’s impractical and likely to be destroyed.
When a tire gets worn it gets smaller.
You use GPS to get an incremental distance traveled, and cross reference it with a number of rotations of the wheel (simple optical sensor, like abs wheel). You’d need a few algorithms to adjust for things like tire temp, tire pressure, and also extract meaningful data from the GPS plot in order to get a more accurate distance per wheel, because of turns. If you went 100 miles turning left the entire time, the right tires travel further than the car’s COG, which travels further than the left wheel.
But it could be done.
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### Author:  [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [July 18, 2008, 10:09am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/34 "2008-07-18T10:09:34Z")
> [@ILCisDEAD](#):
>
> No revolutions per tire/gps assumed revolutions per tire… difference in percentage = the amount of tread left.
how are you going to calculate rpms of the tire?
edit: I just saw newman’s solution
It seems like you are going to end up having to add A LOT of extra sensors and wiring to accomplish all of this.
Oh and interfacing with a gps unit would be stupid. this is definitely better executed with an embedded computer running an embedded OS. You are talking about A LOT of on the fly calculations that will need to be running multithreaded execution in order to update fast enough for any of the information to be useful in real-time.
Hide the computer in the car somewhere and wire it to a small lcd display similar to that of an AVIC-D3
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### Author:  [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)
#### Post date: [July 18, 2008, 10:09am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/35 "2008-07-18T10:09:45Z")
> [@newman](#):
>
> You use GPS to get an incremental distance traveled, and cross reference it with a number of rotations of the wheel (simple optical sensor, like abs wheel). You’d need a few algorithms to adjust for things like tire temp, tire pressure, and also extract meaningful data from the GPS plot in order to get a more accurate distance per wheel, because of turns. If you went 100 miles turning left the entire time, the right tires travel further than the car’s COG, which travels further than the left wheel.
>
> But it could be done.
No you are right your idea would definitely be better, for some reason I just assumed GPS would be terribly inaccurate.
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### Author:  [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)
#### Post date: [July 18, 2008, 10:10am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/36 "2008-07-18T10:10:47Z")
> [@boardjnky4](#):
>
> I was more referencing how you would get the datalog info from the ECU. coolant temps, AF ratios, oil pressure, fuel pressure, etc…
>
> You would need something to interface with the ECU.
doah, never mind… thought you were talking about “tracking cops shooting radar via GPS”
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### Author:  [@justa4door](https://forums.speedlife.net/u/justa4door)
#### Post date: [July 18, 2008, 10:11am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/37 "2008-07-18T10:11:17Z")
dumb…no one will listen. :playingwithweinerbytryingtotuckitback:
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### Author:  [@justa4door](https://forums.speedlife.net/u/justa4door)
#### Post date: [July 18, 2008, 10:11am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/38 "2008-07-18T10:11:43Z")
ha
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### Author:  [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)
#### Post date: [July 18, 2008, 10:11am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/39 "2008-07-18T10:11:51Z")
> [@boardjnky4](#):
>
> how are you going to calculate rpms of the tire?
a fucking sensor. just like a bike tire or something like that. just has to count the number of revolution multiply it by the circumference of the tire. and it gives you an assumed distance of travel. Reference that with the GPS and the percentage of difference will give you an indication of wear.
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### Author:  [@newman](https://forums.speedlife.net/u/newman)
#### Post date: [July 18, 2008, 10:13am UTC](https://forums.speedlife.net/t/nyspeed-community-project/51719/40 "2008-07-18T10:13:00Z")
The easiest tire wear sensor would simply have an electrically conductive filament inside one (ore more) tread blocks. Low voltage is applied through the filament. When the tire wears to a certain point, the filament eventually is worn through as well. Open circuit activates a tire wear indicator.
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