gtr missing

[400kwgtr]

[BHDave]

It's a bad idea to mess with the gaps on platinums too much as it damages the coating i have heard.

It may just be that the mixtures are too rich.

Stock copper replacement are NGK BCPR6ES-11, i think they are 4 bucks ea from repco.

If you want to run .8 gap then BCPR6ES are the go.

[Guest two.06l]

i pulled the tube going to the boost control solenoid off my gtr. it upped the boost and ran fast except it started missing. The mag tells me to gap the plugs down to 0.8mm so i tried that but it didnt work. So i put the tube back in and it still missed. I then re gapped the plugs (brand new platinum) back up to recommended 1.1mm. but it is still missing? what is going on?  

Do i have to buy platinum plugs for a gtr or can i buy normal ones? does anyone know the spark plug part number for the normal non platinum plugs? cheers

might have popped off an intercooler hose ,might pay to check as increased boost some times does this

[meggala]

and keep the plug gaps to at least 0.8 soem peopel even run them tighter

cooler hose is worth a check

[Morgs]

Whens it miss?

[cameron]

does the exhaust blow white smoke ?

i dont thinks its the mixtures cause if it does it on standard boost and uped boost it would change, (more boost more air flow) (less boost less air flow) - accomidating the fuel either way.

[400kwgtr]

cheers guys, put some copper plugs in it at .8mm gap. Goes like crazy now. gtech says 325 hp at wheels. anyone wanna buy it?

[markr34gtr]

if you run any more than 17psi you will need the electrode to be covered by the thread of the spark plug... to stop the spark being in direct boost contact....this is why your car has a miss under boost....i had the same prob..

ngk v power racing plugs are 6 bucks each and are fine for high boost....

cheers