Road Dyno
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 897
Likes: 0
From: My Own Private Idaho
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
Re: Road Dyno (tailgunner)
I have used StreetDyno.
http://www.tweecer.com/StreetDyno/
It is free and does the same thing.
I had some problems with the program but it worked better if I cut the WAV file before and after the run, so only the actual acceleration was left.
I got these numbers using StreetDyno and then I did the plot in Excel:
http://www.tweecer.com/StreetDyno/
It is free and does the same thing.
I had some problems with the program but it worked better if I cut the WAV file before and after the run, so only the actual acceleration was left.
I got these numbers using StreetDyno and then I did the plot in Excel:
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
Re: Road Dyno (Vett-eight-nine)
Where did you find the price? (I can't!) :confused:
Look under "Ordering Information!"
http://www.charm.net/~mchaney/roaddyno/
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 897
Likes: 0
From: My Own Private Idaho
Re: Road Dyno (JoBy)
I have used StreetDyno.
http://www.tweecer.com/StreetDyno/
It is free and does the same thing.
I had some problems with the program but it worked better if I cut the WAV file before and after the run, so only the actual acceleration was left.
I got these numbers using StreetDyno and then I did the plot in Excel:
http://www.tweecer.com/StreetDyno/
It is free and does the same thing.
I had some problems with the program but it worked better if I cut the WAV file before and after the run, so only the actual acceleration was left.
I got these numbers using StreetDyno and then I did the plot in Excel:
From the webpage>
Next you will need to build either an Inductive pickup [see Mike Chaney's "Home Dyno" page] or the voltage divider that I use to pickup the ignition signal.
Which did you use/build?
What did you use for recording, Pc sound card?
[Modified by tailgunner, 12:52 PM 2/10/2004]
Drifting
Joined: Nov 2002
Posts: 1,365
Likes: 3
From: Huntsville AL
Re: Road Dyno (VictorRussell'92)
My dad designed one about 10 years ago that does everything this one does; however, it actually calculates aerodynamic drag, drivetrain loss, and frictional (tire to road) loss. The one you mentioned here has you estimate those values to get hp and tq. Back when he was testing the software he gave a box to some pro drag racer, and the guy was really impressed with it.
Of course, family stuff (starting a new company, two kids going to college) got in the way and he wasn't really able to market and sell it. Again, this was long before the G-tech came out.
He's got three units built up that are probably stuffed in a closet somewhere. I need to drag those things out and try to hook them up to my vette.
Of course, family stuff (starting a new company, two kids going to college) got in the way and he wasn't really able to market and sell it. Again, this was long before the G-tech came out.
He's got three units built up that are probably stuffed in a closet somewhere. I need to drag those things out and try to hook them up to my vette.
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Burning Brakes
Joined: Jun 2003
Posts: 1,229
Likes: 1
Re: Road Dyno (tailgunner)
I saw a software on TV, can't remember was it was called, but it was shown on Horse Power TV with those two gear heads on TNN... I'm sure some of you know what I'm talking about.
Anyway's, the guys pretty much just put in the size of the engine, number of cylinders, type of cam, type of intake, CR and it gave almost exact HP numbers.
Does any one know what this software is called and were can you get it?
[Modified by TheStef, 10:55 AM 2/10/2004]
Anyway's, the guys pretty much just put in the size of the engine, number of cylinders, type of cam, type of intake, CR and it gave almost exact HP numbers.
Does any one know what this software is called and were can you get it?
[Modified by TheStef, 10:55 AM 2/10/2004]
Melting Slicks
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Re: Road Dyno (HammerDown)
My dad designed one about 10 years ago that does everything this one does; however, it actually calculates aerodynamic drag, drivetrain loss, and frictional (tire to road) loss. The one you mentioned here has you estimate those values to get hp and tq. Back when he was testing the software he gave a box to some pro drag racer, and the guy was really impressed with it.
The math to separate rolling resistance form aerodynamic drag doesn't give real exact numbers, but the combined drag numbers it gives are very accurate. Just as accurate as the acceleration values that are recorded.
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
Re: Road Dyno (tailgunner)
I only used the free pre 1.0 version that you can download.
I used a resistor divider ($1 in parts) and recorded using the microphone input on the laptop.
[Modified by JoBy, 9:39 PM 2/10/2004]
I used a resistor divider ($1 in parts) and recorded using the microphone input on the laptop.
[Modified by JoBy, 9:39 PM 2/10/2004]
