I have a 50shot Dry kit installed on my B18c1 running stock ECU, with FPR, I/H/E. I am having a problem with the nitrous shutting off when the ECU engages dual butterfly. The nitrous hit hard and pulls up to 5700 when the dual butterfly opens, then u can feel the car slow down and its just running all motor after this, I can flip the nitrous on/off and it makes no difference after 5700. I think its a vacume problem, something about the vacume changing when buttflys open and my nitrous shutting down. Any help would be great.

 

I fixed the problem. I had to switch which vacume I had to T into, on OBD1 b18c1 the vacume from the FPR goes striaght to the intake. on my 00 GS-R there is some clyinodes inbetween to run the butterflys i think. Anyways I just had to switch my T into vacume line 12(the one under the manifold that goes straght from the intake to the cyinode)