I am about to get serious and actually tune while I am on the dyno instead of just shifting thru the gears. I wanted to get some input regarding how and what the nitrous and fuel jets affect overall hp and tq numbers as well as a/f and what is the recommended path to take when changing out jets.
For instance when I was on the dyno with my car and a 150 shot(TNT kit with 46 n2o and 25 fuel jets) I made a couple of runs:
run 1 made an additional: 116/190 a/f was 10.4
run 2 made an additional: 125/188 a/f was 10.9(I took out some fuel with the vec2)
TNT kits are rear wheel rated numbers so I am leaving some power on the table. I plan on trying different jets, but which ones should I change 1st - nitrous or fuel?
I was thinking as rich as the car was the tq numbers would be on up there and by leaning the car out some it seems the tq numbers are gonna fall(my understanding is that tq is created by adding fuel, could be wrong in this situation).
I need to go over my setup to make sure something fundamentally isn't wrong and that everything is flowing properly. My psi was around 1000 and TNT said they recommend or test at 900 to 950.
Sooooo, assuming my system is working properly should I go up on my n2o jet or go down on my fuel jet to get my a/f where it needs to be and get my hp and tq numbers up? I am not using the vec2 anymore. I want to tune with the jets and around 900 psi to try and avoid big drops in psi as I make runs at the track or street.
The one interesting or confusing thing is that my 100 shot (jets 39/22) made 80/180 with an a/f around 10.8. So why didn't my tq go up with the 150 shot? I see everyone else gaining 200 to 300 or more easily. Granted I have yet to tune the car, but wanted to know what others were doing to get those numbers.
For instance when I was on the dyno with my car and a 150 shot(TNT kit with 46 n2o and 25 fuel jets) I made a couple of runs:
run 1 made an additional: 116/190 a/f was 10.4
run 2 made an additional: 125/188 a/f was 10.9(I took out some fuel with the vec2)
TNT kits are rear wheel rated numbers so I am leaving some power on the table. I plan on trying different jets, but which ones should I change 1st - nitrous or fuel?
I was thinking as rich as the car was the tq numbers would be on up there and by leaning the car out some it seems the tq numbers are gonna fall(my understanding is that tq is created by adding fuel, could be wrong in this situation).
I need to go over my setup to make sure something fundamentally isn't wrong and that everything is flowing properly. My psi was around 1000 and TNT said they recommend or test at 900 to 950.
Sooooo, assuming my system is working properly should I go up on my n2o jet or go down on my fuel jet to get my a/f where it needs to be and get my hp and tq numbers up? I am not using the vec2 anymore. I want to tune with the jets and around 900 psi to try and avoid big drops in psi as I make runs at the track or street.
The one interesting or confusing thing is that my 100 shot (jets 39/22) made 80/180 with an a/f around 10.8. So why didn't my tq go up with the 150 shot? I see everyone else gaining 200 to 300 or more easily. Granted I have yet to tune the car, but wanted to know what others were doing to get those numbers.