i have a NX EFI kit on my 2000 Z-28.
The car has gone 12.4 @ 113 mph in 3500 DA. w/1.68 60ft on motor in the past.
Since then i went to open headers and and from LS6 intake back to LS1 intake.
My car has the tr224 .561 112LSA cam. 4.56 gears 9 in , 6 speed.
I put the 150 pills in and everything works right to me at least it seems.
I made 2 passes with the 150 pills 11.73@ 117 And 11.70 @ 117 w/ 1.47 60ft.

What is wrong??? I did not know my bottle pressure bottle was cold on 11.70 pass. and bottle heater on for about 10 mins on the 11.73 pass.
where should i start and should i put exhaust back on the car??

thanks

 

Did you get any motor passes in.You can not compare a nitrous run to a old motor run.
It really needs to be back to back.Also you need to know the bottle pressure.Get back to the track and get a motor run.
Dave

 

ok thanks.
my car feels very slugish since i went to open headers>>>>>

 

you will lose some low end torque with the headers, but should not be that much. if I read correctly you went back to the ls1 intake over the ls6, why? this could be effecting your cam performance slightly. I also would recommend a base line motor run. also was is hotter during the no2 runs than a the old motor runs? Are you breaking loose during the spray in second could also be a factor. sixty foot looks better though, let us know.

 

i needed money so i sold my ls6 intake and put the ls1 back on.
my car will not even break the tires loose on motor now it IS HORRIBLE. it feels like its
on motor when its on a 75 shot.
first pass on 150 shot i got loose in top of first and into second but still thought
117mph was very low.

i dont know. any help please

 

You may have the same "problem" that everyone tells me that I have...Spraying on a 112lsa. ??? I hope you get it figured out.

 

found a ignition coil control circuit problem with the car. i need to get to the bottom
of this 7 cyclinders sucks.
thanks guys