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Help with building your Speeduino, installing it, getting it to run etc.
By Dmitriy
#3710
I use TS no full version Table generator VE can not use. Please help me to make a table VE. Engine size 400cc
Idle 1200-1600 rpm
Max rpm 16,000,
Maximum power 65 H.P at 13,000 rpm
Peak torque is 43 at 10,000 RPM
User avatar
By PSIG
#3714
Dmitriy, those numbers will give a bad table, as the horsepower at 13,000 ("65 H.P at 13,000 rpm") is lower than it is at max torque (43 ft/lb at 10,000 rpm is about 82 hp).

Just for figuring, the formulas for ft/lb of torque (TQ) and horsepower (HP) are:
TQ = HP * 5252 / RPM
HP = TQ * RPM / 5252
RPM = HP * 5252 / TQ


You should also know the number of cylinders, number of injectors, and the injector size to confirm the table is reasonable. In a worst-case, a tuner's "wedge table" can be used to get started, and it is briefly outlined in the Tuning section of the Speeduino Wiki. Hope that helps.

David
User avatar
By PSIG
#3724
cx500tc wrote:According to bikez.com, for 1991 model year the power is 56.32HP @ 12000 and 31 lb-ft @ 9500.
Those are good numbers, and show a very flat HP curve, with an even drop in TQ. The table below is NOT suitable for running the engine under load, but may help to get you started towards tuning. No one's making you do this. Use your own judgment. You're on your own. I made this table for a 14500 redline, which is generally plenty for a peak HP rpm at 13000. You must change your rpm and VE numbers to suit your engine! Use care and good luck!

David

View of table:
Image

Insert table code into your tune with TunerStudio "import" function. Rename the file below to "14500.table" and import to TunerStudio:
Unzip and change file extension to ".table" for TS import.
(841 Bytes) Downloaded 144 times
Or copy and paste the table info below to replace your existing table:
Code: Select all
<xAxis cols="16" name="RPM">
         700 
         1400 
         2300 
         3000 
         4500 
         6000 
         8000 
         9500 
         10500 
         11000 
         11500 
         12000 
         12500 
         13000 
         13800 
         14500 
      </xAxis>
<yAxis name="MAP" rows="16">
         30 
         33 
         37 
         42 
         45 
         50 
         55 
         60 
         65 
         70 
         75 
         80 
         85 
         90 
         95 
         100 
      </yAxis>
<zValues cols="16" rows="16">
         24.0 24.0 26.0 28.0 31.0 34.0 38.0 41.0 42.0 42.0 41.0 40.0 39.0 38.0 37.0 36.0 
         24.0 25.0 27.0 29.0 32.0 35.0 38.0 41.0 33.0 33.0 32.0 32.0 31.0 30.0 29.0 28.0 
         25.0 26.0 27.0 30.0 33.0 36.0 39.0 41.0 37.0 37.0 36.0 35.0 35.0 33.0 33.0 32.0 
         25.0 26.0 28.0 31.0 34.0 37.0 40.0 41.0 42.0 42.0 41.0 40.0 39.0 38.0 37.0 36.0 
         25.0 27.0 29.0 31.0 35.0 38.0 41.0 45.0 46.0 46.0 45.0 44.0 42.0 42.0 41.0 40.0 
         26.0 27.0 29.0 32.0 36.0 40.0 44.0 50.0 51.0 51.0 50.0 49.0 47.0 46.0 45.0 43.0 
         27.0 28.0 30.0 33.0 38.0 42.0 47.0 53.0 56.0 55.0 53.0 52.0 51.0 50.0 49.0 47.0 
         27.0 29.0 31.0 34.0 39.0 45.0 51.0 58.0 60.0 60.0 58.0 57.0 55.0 53.0 52.0 51.0 
         28.0 29.0 32.0 36.0 41.0 47.0 54.0 62.0 64.0 64.0 62.0 60.0 60.0 58.0 57.0 55.0 
         28.0 30.0 33.0 37.0 42.0 49.0 57.0 67.0 69.0 68.0 67.0 65.0 63.0 61.0 60.0 59.0 
         29.0 31.0 34.0 38.0 43.0 51.0 61.0 71.0 73.0 72.0 71.0 69.0 68.0 66.0 64.0 62.0 
         29.0 31.0 35.0 39.0 45.0 54.0 65.0 75.0 79.0 78.0 75.0 73.0 71.0 69.0 68.0 67.0 
         30.0 32.0 35.0 40.0 46.0 57.0 70.0 85.0 87.0 87.0 85.0 83.0 80.0 79.0 77.0 74.0 
         30.0 33.0 36.0 41.0 47.0 59.0 75.0 89.0 92.0 91.0 89.0 87.0 85.0 83.0 80.0 79.0 
         31.0 33.0 37.0 42.0 49.0 62.0 78.0 94.0 97.0 96.0 94.0 90.0 88.0 87.0 84.0 83.0 
         31.0 34.0 38.0 42.0 50.0 62.0 81.0 97.0 100.0 100.0 97.0 95.0 93.0 90.0 88.0 87.0 
      </zValues>
By noisymime
#5063
Dmitriy wrote:What could be the problem? TS always displays voltage 24V. In fact, the voltage ~11-16v
What's your hardware setup? The battery voltage circuit is a fairly simple voltage divider, so if there's a problem with it, it's more likely to be a hardware problem than a software one.

Do you have the correct board selected in your Engine Constant settings?
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