- Joined
- 10 February 2000
- Messages
- 2,677
I've seen a LOT of posts asking for which wire it is....and no good answers. I spent the past 8hrs installing and wiring my ZEX nitrous, and got the lowdown.
On a 1992 NSX 5-speed, if you are standing on the drivers side of the car looking at the engine...look at the throttle-body. On the right side of it is the TPS (throttle position sensor). The plug has 3 wires. The MIDDLE one (red with a stripe of black I believe...it's the only red one) is the + TPS wire. It should be about .5v with no throttle, and around 4.8v when floored. You don't have to start the car to see the voltage, just have the key turned to ON.
I'm currently running a ZEX 75hp dry shot. I must say, the difference is NIGHT AND DAY. I have 255's on the back, and first gear without nitrous will grip reallly well. With the n2o turned on....it gets *NO* traction at all. I *cannot* floor the car until I'm in second gear at about 5k rpms.
WOW.
I will be running the car at Moroso on Friday (with a bad clutch/master/slave cylinder meaning slow shifts) and will report my new time. I got a 13.4 last time with 96k miles, bad launch (lots of wheelspin), intake, exhaust, headers.
SR
edit: I'll be taking pics tomorrow so I can clarify it a little.
On a 1992 NSX 5-speed, if you are standing on the drivers side of the car looking at the engine...look at the throttle-body. On the right side of it is the TPS (throttle position sensor). The plug has 3 wires. The MIDDLE one (red with a stripe of black I believe...it's the only red one) is the + TPS wire. It should be about .5v with no throttle, and around 4.8v when floored. You don't have to start the car to see the voltage, just have the key turned to ON.
I'm currently running a ZEX 75hp dry shot. I must say, the difference is NIGHT AND DAY. I have 255's on the back, and first gear without nitrous will grip reallly well. With the n2o turned on....it gets *NO* traction at all. I *cannot* floor the car until I'm in second gear at about 5k rpms.
WOW.
I will be running the car at Moroso on Friday (with a bad clutch/master/slave cylinder meaning slow shifts) and will report my new time. I got a 13.4 last time with 96k miles, bad launch (lots of wheelspin), intake, exhaust, headers.
SR
edit: I'll be taking pics tomorrow so I can clarify it a little.
