RPM scaling on RT Dash2

[adamnreeves]

I am running a V8 which redlines at 5800RPM so having the dash go up to 8000RPM is a complete overkill. More importantly the shift points pale into insignificance on the display. Ideally I want to change to 1 X 10^2:


position = revs X100

0 = 0
1 = 10
2 = 20
3 = 25
4 = 30
5 = 35
6 = 40
7 = 50
8 = 60


Or better still divide the whole display to just 7 points rather than 9 then I can stick to 1X10^3 and use:
0 = 0
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6


Seems to be no straight forward way to do this. I have tried setting decimal places to 1 and entering 0,1,2,2.5,3,3.5,4,5,6 but it just sets the display as 0,1,2,3,3,4,4,5,6 ! If I have not missed anything could I change pulse from 4 to .4 and then mulitply everything by 10! Using decimals/fractions makes me nervous as it seems to forget them on the RPM scale.


Any help/advice much appreciated.
- Adam.

[osborni]

Yeah, it's a bummer you can't do smaller increments then 1,000 rpm.

I did 0,0,1,2,3,4,5,6,7 for a 6500 rpm red line.

[adamnreeves]

I hadn't realized that you could have the same value more than once. What do you think to my idea of changing to 100's rather than 1000s? The only obvious problem I see is that the dash will still say 1000s at the top right.

Yeah, it's a bummer you can't do smaller increments then 1,000 rpm.

I did 0,0,1,2,3,4,5,6,7 for a 6500 rpm red line.

[adamnreeves]

I hadn't realized that you could have the same value more than once. What do you think to my idea of changing to 100's rather than 1000s? The only obvious problem I see is that the dash will still say 1000s at the top right.

Yeah, it's a bummer you can't do smaller increments then 1,000 rpm.

I did 0,0,1,2,3,4,5,6,7 for a 6500 rpm red line.

my idea of of 10^2 scale did not work, maximum is 20! I am surprised this is so inflexible. I kind of assumed that RPM scale was more flexible. Had I known about this prior to purchasing I would not have bought. I think this dash is clearly aimed at the Bike Engine market. V8 and diesel engine owners beware.

[osborni]

I think it is more of a hardware limitation - no decimal point.

I've not had a problem with the visible range of the RPM graph. I shift by sound and the shift lights more then the bar graph. Can't see if out of my peripheral vision the way I can the shift lights anyway.

I do find the peak hold ability to be useful to double check my shift point a moment later once I'm out of a corner though.

[adamnreeves]

There is a decimal place field in the RPM setup screen. You can enter decimals in the RPM values and you can see them on the mock up bar graph display. You save the config file, and they are still there but when you reload the file the decimal places are lost! So it seems like a bug in the software rather than hardware.

[quote="osborni"]I think it is more of a hardware limitation - no decimal point.

[adamnreeves]

Last night I downloaded the latest configuration software just hoping this would fix the software ignoring the decimal places. It seems to honour decimal places in the RPM display now and even seems to retain them after saving but when flashing onto the unit it rounds up! Almost fixed. My firmware vers is 9.0.3 Potenza version.

[osborni]

I ran into your re-load problem, but don't have the potenza version.

I find the shift lift FAR more useful then the bar graph. But the peak hold like IS useful on the bar graph so I can double check the consistency of my shifts.

[adamnreeves]

Yep. Car is not IVAd yet so not road legal so I have the joys of the shift lights to come. Understand what you say though, coloured lights much more visual and easier to understand/process than a bar graph. I have just set it to 0,0,0,1,2,3,4,5,6 ! I have set up my Display #2 to show the rpm as a gauge.

I ran into your re-load problem, but don't have the potenza version.

I find the shift lift FAR more useful then the bar graph. But the peak hold like IS useful on the bar graph so I can double check the consistency of my shifts.

[Support]

Unfortunately being able to add the decimal point is a bug in the config software, allowed values are 0 -19.
You can’t have fractional value but you can have the same one repeating. So for a low revving engine starting with 0 0 0 1 would be appropriate.

[osborni]

So how about a feature request for the next version of Dash2 to allow digits other then 1 in the tens place? So we can have 6.5 to represent 6500 rpm for instance?

[adamnreeves]

Ditto. Seems a shame to waste space and features on the dash due to a bug in the configuration software. This cannot be a difficult fix to make.

So how about a feature request for the next version of Dash2 to allow digits other then 1 in the tens place? So we can have 6.5 to represent 6500 rpm for instance?

[Turby]

I guess this is might be down to the fact that the LCD display can only display a one in these positions rather than a full digit ? In which case its a hardware limitation.

[adamnreeves]

Not really. I have decimals working on the other gauges on the display. I suppose it could be a firmware limitation but that's just software flashed into the EEPROM anyway. I would even be happy if I could change units to 1*100RPM, dont really care about have a decimal, I could then go up in tens and the decimals would be 5s, for example 10,15,20,25 ... insead of 1,1.5,2,2.5 ...

I guess this is might be down to the fact that the LCD display can only display a one in these positions rather than a full digit ? In which case its a hardware limitation.

[osborni]

The first three demarcations at the bottom of the scale are only about 1" long - and are at idle speeds. Not very useful for a performance car.