Been asked how this works,. transferring a torque curve into carp.txt 'torque curve' tab .. best if I explain that by most recent project, the Ford F250 coming with two different engine types:
Open car.viv in NFSWizard (needless to say but ok .. ) and switch to 'gearing/engine' tab. Click on the little red 'curve' icon on right side of the values row to show a pop-up window showing the current torque curve then ..
Choose appropriate car with matching values on 'automobile-catalogue.com' and click 'full specifications', scroll down to 'show torque curve' and a pop-up window will appear showing the (estimated/calculated) torque/power curve in 500rpm steps (you might have to disable pop-up blockers etc. to properly work ..)
Important: your carp.txt needs to be aligned to default 20-step scheme first, if it is for example a 40-step curve that some authors use plz. export it and let RealTuner align it to 20-step torque curve first (RT does this automatically after query when it detects a Carp.txt file in a specific folder ...)
Choose your given torque peak value e.g. '540Nm' by looking at the corresponding rpm value e.g. '540Nm @ 2500rpm', means
: 2500rpm is x-axis value '5' in your carp.txt (6000 x2 /1000)and 'distribute' the following values along that scheme correspondingly, means the double value in carp.txt x-axis, for example: 300Nm @ 6000rpm -> y-axis value '300' at '12' (6000 x2 /1000) x-axis value in carp.txt ...
Just to show you some significant differences between a Diesel and a Petrol engine torque curve have a look at:
1) the 6.8L (412 ci) V10 Petrol engine torque/power curve
2) the 7.3L (444 ci) V8 Diesel engine torque/power curve
The torque curve is the orange one each ...
Tipp: Sometimes the exact model (car) isn't to find on there, I recommend to gather information about the desired car to find out what engine or transmission it uses .. you can find a lot of info already on Wikipedia.com, you can for example find out which other model(s) from particular brand uses e.g. that engine type or transmission, try again find the alternative model on 'automobile-catalogue.com' and have a look at the car then ...
Was the same issue with the F250, wasn't to find on there but I found a sister/precedessor model of it .. the 'Ford Excursion' using same transmissions and engine types ...
If you then insert the correct values (like e.g. weight, turning circle and wheelbase - those values have most significant influence on the driving behaviour) found on other sources into RealTuner it automatically calculates matching carp.txt values for your desired car ..
If no engine redline is given on the website have a look at another short tutorial:http://www.nfsaddons.com/forums//index.php?topic=1844.msg33815#msg33815
and scroll down to: 'Add.: Explanation: Calculating a redline rpm by certain given gear specification data:' (fairly at the end of posting ..)
RealTuner v.2 program by firstname.lastname@example.org
(freeware license) is attached bottommost ..