Eleanor06

Has anyone here tried this system for our cars? I have it but running into problems,at the dyno with the practice shot of 50hp I gained 5hp and had a initial lean spike of 17/1 and then went fat(10/1).The guy at the dyno said its way off.Like it's spiking then the ecu is going to safemode and going too rich.Then I called holley told them,and they say everthing sounds the same as there results when they made this system.That it's normal to lean spike into the 17-20/1 zone. What do you guy's think. ( Normal-Fix?-or get rid of it) ? Thanks

Caution

I have never heard of anything like that... PM Pertano as he has NOS and just got off the Dyno today... if it were me then I would return it... JMO

PERTANO

I have a NX kit in my car and it spiked lean to 16 then fattened up. I'm calling Nitrous Express on monday to ask because we tried to tune that out and it didn't go away. We tried uping the fuel jet size to see if that would help and the spike was still there.

Caution

Geesh and to think that I was thinking abiout NOS

Eleanor06

Yeah, I was thinking about making a longer nitrous line from the solenoid. to let the fuel hit first.Do you think that would help?

Mpaint99

I have Holley NOS with a 100 shot. I had Brent at Brenspeed do thetune and no problems at all. My local Dyno guy owned a Dyno, but if you ask me didnt know how to use it correctly for high performance applications. Always call a Professional when messing with S/C or NOS.

PERTANO

Not sure. But I am going to call Nitrous Express on Monday and ask the question.