i have a 2008 nissan 350z and it has cold air intake and a 75 shot of nitrous. it burnt the plugs but they were replaced and now it's missing and running horribly. what is the problem?

Asked by Sep 02, 2015 at 10:41 PM about the 2008 Nissan 350Z Grand Touring

Question type: Maintenance & Repair

17 Answers

Also, the reason it burnt the plugs is because i was spraying a 150 shot of nitrous and thats when it burned 2 plugs. So i replaced them and crunk the car back up and it is missing and after a few cranks, it blew white metal shavings like out of the exhaust. whats the problem?


well did you put the same kind of plugs in it. with that much power I would run iridiums or palsestar. there might be a coil pack not pluge in right or has a bent pron on the inside of the conecter. there are a cupple things. run a compression test on it.


Run compression check!!! you might have blown a valve seat valve top of the piston top of the piston ring seat. there are a cupple tings that could have happened but usually if there is metal shavings coming out the exhause it might be catilitic converter if there is still one in there

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it is iridium plugs. everything is hooked up correctly. and also, after a few cranks, it blew white metal shavings like out of the exhaust.


you are going to have to run compression test bro it sounds like you have no compression on a cupple cyl

okay. also, oil pressure is good, not running hot. and when i cut it off, it sounded like a compressor shuting off.


with 150 shot it got hot in the cyl's that is WOW


first of all the plugs need to be 2-3 steps colder !

Best Answer

and how are you retarding the timming 5 degrees ????

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and how are you adding the extra gas to it????


are you using a bigger injector. is it the stock motor that all this has been added on or did you have it rebuilt and different pistons put in it

you take out 1 degree for every 50 horse.

and yes it is a stock motor


you blew a piston you cant add 150 shot of nos to a stock motor your lucky you didnt blow the pistons out the bottom of the motor

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compression test !!! if you can see if some one you know has a video scope that you can look down the spark plug holes.

okay. i really appreciate it.

okay, we ran a compression check and it showed that one cylinder was out. why do you think it has no compression and all of the others do?

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