Help with launch ideas.. log inside
Help with launch ideas.. log inside
Here is two graphs of my launch. I kinda guestimated on the launch point but you guys will get the idea of where it was... the car has launch control so it makes it kinda tough to see where it launches. As from viewing the logs you can see how long I actually slip the clutch to get it moving. The question is what can I do to improve it... IF you can tell anything from these logs.. the boost seems to climb fast and I dont think I could slip the clutch out any faster. I was THINKING if I stutter at a higher RPM I could slip the clutch out faster and get some more speed but I am afriad my tire spin will get even worse. Strange thing about the launches are I launch very soft... slip the clutch alot at the 0mph mark and the tires actually spin when I am slipping the clutch and when it is fully engaged. Not the actual launch itself. Thats why I am thinking higher RPM might be better. Anyways, anyone that cuts 1.5's and 1.6's see if you can help or at least give me some pointers. Thanks guys!
By the way.. from the looks of the log it seems like the car bogged but it didnt. The boost is pretty easy to see that it isnt bogging out. This also eqautes to a 1.76 60' time. I am trying to get it to a 1.58-1.65
Why do you have the rev limiter so high (8500)? It look like you are shifting in the mid-7000 range and the extra limiter range is just stressing parts. Do you have it that high so that you don't hit the limiter too hard on shifts?
I have it that high because i trap that high 
The hard limit is 8.3k The motors mass I assume spins it a little higher (Or the Utecs lack of judgement) The soft limiter is a fixed rate of 250 rpms before the hard. That means i am really only good till 8k. I look at my RPMs when I pass the trap and they are in the upper 7's I dont think I could lower it much before it starts bouncing again. When I had the limiter set at 7.75 it would hit it a ways before the trap. I think I got a probably 4 or 5 more mph before it hits it again. I will be building the motor in the beginning of the winter probably and make sure it and the head can both safely rev to 9.5 and I will probably shift at around 8.5 or 9. I SHOULD be revving it higher in each gear but things start going too fast for my stupid brain to think right. I shake every time i line up still so I need alot of practice. Ill bet if I shift at a higher RPM and fix my launch the car would be running 11.2s consistantly at the same boost with nothing changed.
The hard limit is 8.3k The motors mass I assume spins it a little higher (Or the Utecs lack of judgement) The soft limiter is a fixed rate of 250 rpms before the hard. That means i am really only good till 8k. I look at my RPMs when I pass the trap and they are in the upper 7's I dont think I could lower it much before it starts bouncing again. When I had the limiter set at 7.75 it would hit it a ways before the trap. I think I got a probably 4 or 5 more mph before it hits it again. I will be building the motor in the beginning of the winter probably and make sure it and the head can both safely rev to 9.5 and I will probably shift at around 8.5 or 9. I SHOULD be revving it higher in each gear but things start going too fast for my stupid brain to think right. I shake every time i line up still so I need alot of practice. Ill bet if I shift at a higher RPM and fix my launch the car would be running 11.2s consistantly at the same boost with nothing changed.