Velocity Devices CDI Test
Nov 7, 2005 | 04:44 PM
#1
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Velocity Devices CDI Test
Ok here goes. Things that slow down the Green Machine. 27inch Outlaws, winch, gas cans on the back, snow covered gravel in a gravel pit, and minus temperatures. Well maybe minus temperatures might actually help and oh yes 3200 foot elevation.
First runs were made with a modified Dyna CDI average speed was 39mph in 300 feet in 4x4 and 37 in 2x4. Speeds were recorded with a dopler radar gun.
Next runs were made with the VDI CDI with my custom ignition maps. First run was identical to the Dyna on the first map I had programed. Second run produced a 2 mph difference totaled 41mph. I was impressed 2mph in 300 feet just by changing the map is phenominal in my book. Best times were in 4x4, 2x4 was 2mph slower on average not bad.
Noticable benefits are it starts easier, idles better and is very responsive.
First runs were made with a modified Dyna CDI average speed was 39mph in 300 feet in 4x4 and 37 in 2x4. Speeds were recorded with a dopler radar gun.
Next runs were made with the VDI CDI with my custom ignition maps. First run was identical to the Dyna on the first map I had programed. Second run produced a 2 mph difference totaled 41mph. I was impressed 2mph in 300 feet just by changing the map is phenominal in my book. Best times were in 4x4, 2x4 was 2mph slower on average not bad.
Noticable benefits are it starts easier, idles better and is very responsive.
Nov 7, 2005 | 05:58 PM
#2
Eternal Rider
Building A Runway To Hell & Back!
The engine is the heart of an airplane, but the pilot is its soul. ~Walter Raleigh
Building A Runway To Hell & Back!
The engine is the heart of an airplane, but the pilot is its soul. ~Walter Raleigh
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Velocity Devices CDI Test
Nice work Gary . [img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img] Might have to get me some of that .
Nov 9, 2005 | 06:09 PM
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Velocity Devices CDI Test
Do you have a feel for the times on these runs. You probably want more top end since you're going for a land speed record[img]i/expressions/face-icon-small-smile.gif[/img], but I'm an acceleration guy.
Nov 9, 2005 | 06:53 PM
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Velocity Devices CDI Test
Kawiyowee,
I didn't worry about times as it wouldn't have been accurate. Using stop watch times people would have complaints about it. Gaining 2mph in 300 feet is very good. Gaining acceleration in that limited space is a plus with a modified machine just by changing timing maps. Should be able to figure it out with math though I have to go out right now but will play with numbers later on.
I didn't worry about times as it wouldn't have been accurate. Using stop watch times people would have complaints about it. Gaining 2mph in 300 feet is very good. Gaining acceleration in that limited space is a plus with a modified machine just by changing timing maps. Should be able to figure it out with math though I have to go out right now but will play with numbers later on.
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Nov 9, 2005 | 11:41 PM
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Velocity Devices CDI Test
alltoys.....I got to thinking about the equations, and finally coverting the numbers to hp gain (it was easy when I was a young engineer), now it's just too much to think about.
I agree though, 2 mph in 300' is a pretty big difference.
I agree though, 2 mph in 300' is a pretty big difference.
Nov 10, 2005 | 01:54 AM
#10
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Velocity Devices CDI Test
Curls,
The one I am using is a beta unit. Full production will be ready by the second week of December just in time for Xmas Rush, lol. Price will be 350 CDN not sure of the US dollar by then. There will be 2 timing maps on it a base stock one and an equivalent to the Dyna map. Dyna was 33* at 5000 rpm up to 9300 rpm. Hope that helps.
The one I am using is a beta unit. Full production will be ready by the second week of December just in time for Xmas Rush, lol. Price will be 350 CDN not sure of the US dollar by then. There will be 2 timing maps on it a base stock one and an equivalent to the Dyna map. Dyna was 33* at 5000 rpm up to 9300 rpm. Hope that helps.