Nistune Forums

I didn't try the z32 curve but I probably wouldn't notice the difference at this point because of how close it is and my car needing a proper tune, although at idle I could see needing to have K lower or it would be too rich. I really think that you were right when you said that maybe the stock gtr ...

I changed to my nismo mafs this weekend and I kept the stock gtr maf curve and doubled K as a starting point and so far car is running fine, still needs a dyno tune to adjust for the other mods I have added but otherwise its drivable, thought it would be helpful to post my experience

I could make sense, that nismo has choised the same curve, that you have only adjust the K-Value? What do you think about, can it be? Or would i be mistake in suggestion? However i will try it out in the next days... you might be right on that, I looked at the nissan curves and the nismo curve is v...

ya I haven't even tried it yet myself but I thought I should ask since it was bothering me, and since this is a polynomial equation if you take the output and divide by 2 you are radically altering the curve

but looking at the end result of halving the values wouldn't you agree that it looks wrong? or is airflow not directly related to the 0-65k value? It doesn't make sense that the z32 maf would read a higher voltage for the same airflow as the gtr maf also it shouldn't matter if the vq map goes abouve...

curious if it is similar to mine, I get the concepts of tuning just don't have the experience, I want to get a professional dyno tune done next year but it is far from me and I want to try and make my car as drivable as I can myself

what kind of mods does the car you are about to tune have?

this is the curve supplied by nissan, I don't have a nistune vq map version http://www.skylinesaustralia.com/forums/uploads/nismo_afm_ed.jpg when you do a change maf in nistune and select half values you get a graph like this, where the red line is the z32 maf(no nismo vq available in nistune) and p...

I have a question about the half sizes option, the curves don't make sense after the sizes are halved. The z32 curve ends up needing more voltage for the same airflow quantifier, where as the curve should be less voltage for the same airflow. If I don't half the values then the curve makes sense, al...

Hi I've added the following mods to my car and am wondering if anyone has a bin file for a setup similar to mine that I could use as comparison to help guide me in the right direction?

poncam type b
tomei 7655 turbos
1000cc injectors
nismo afms

cheers