Larry Mahanor

Looking for center wheel caps from 280ZX Turbo, Part number on back side is 40343 P9000

Thanks to all for the excellent info. Shawn, I remember you and your family very well. I ran into Tim at the Palm Beach School Board last year, working my day job and he gave me the sad news of Dennis passing on last year. My condolences to the whole family. Dennis is registered with the Internet Z Club (Carl Beck) as one of the original Z racers. I'm running the Z racer at the Sebring Vintage races next month, and if the car comes away healthy, the Walter Mitty Challenge at Road Atlanta, April 29 - May 2. This year The Mitty is going to have a Nissan theme with Pete Brock as a special guest. Nismo ran a picture of my car in their 2010 motorsports calendar for the July month. On the manifold, I'm inclined to have one fabricated. I know it will be more expensive, but I'm thinking the pay off would be great. I was on the site BandmZcar, and he fabricates some hard core parts, like a plate for making an intake manifold. Joe at ESSATECH in Ft. Lauderdale is a great fabricator of such things.

Of all the mods I've seen for the throttle body on an L6 manifold, it's typically been using the 60mm unit from a 240SX. I've not seen mention of the Weber Big Throat, a 65mm unit that was a popular upgrade during the 280Z hay days. Does anyone know of a reason why this wouldn't work? The TPS shaft is a D type which mated to the original 3 contact stock TPS switch. I was wondering if a potentiometer type TPS might be impossible to find for it, which would be necessary to work with aftermarket ECUs. I found an old Big Throat in my attic and would like to use it. Stickshift

Hello Futureman: I've seen this problem many times, as I was once in the business of servicing the old Z's. The problem is most likely in the coolant temp. sensor circuit, and most, most likely the bullet connectors on top of intake manifold that goes to the sensor. They get corroded and old and don't make good contact. Also check the connector at the sensor itself. The sensor is mounted in the thermostat housing at the front of the engine. Outside chance it's a defective sensor itself. Follow the wires that go from the sensor up into the harness on top and you will find the bullet connectors. When the electrical connection to the sensor is weak, or the sensor is bad, it tells the ECU that the engine is cold and it dumps a lot of fuel into the engine. It can get so bad you'll fowl the plugs so they're sooty black. You'll need a fresh set of plugs after you fix the problem. Good luck! Larry Mahanor (Stickshift)