I dont know if this helps you Jive, but Tim told me to gap mine @ .035. He tunes ALOT of cars, so im sure he knows what gap works on S/C cars.
But I have to go with randy on the fact that with MOST plugs, dont go lower than teh .040s. If you close them too much your car will run like crap while N/A.
The reason for gap depends on compression ratio and cylinder pressure. S/C motors run a tighter gap to prevent spark blowout with the higher cylinder pressures. same thing for high compression motors....like said the NGKs come pre gapped and are designed for the gap that they set them at, but that specific plug isnt JUST for N20 cars...its designed to be used in high cylinder pressure enviroments. So it will probably be sacrificing milage, and some power while N/A. I would go about .038-.040 . Remember spark blowout shuldnt hurt your motor, but you will know when you have it. I doubt a 125 shot will blow out a .040 gap. But thats JMO.
But I have to go with randy on the fact that with MOST plugs, dont go lower than teh .040s. If you close them too much your car will run like crap while N/A.
The reason for gap depends on compression ratio and cylinder pressure. S/C motors run a tighter gap to prevent spark blowout with the higher cylinder pressures. same thing for high compression motors....like said the NGKs come pre gapped and are designed for the gap that they set them at, but that specific plug isnt JUST for N20 cars...its designed to be used in high cylinder pressure enviroments. So it will probably be sacrificing milage, and some power while N/A. I would go about .038-.040 . Remember spark blowout shuldnt hurt your motor, but you will know when you have it. I doubt a 125 shot will blow out a .040 gap. But thats JMO.