problem at 3,500 RPM's

blockhead

New Member
Feb 24, 2004
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i just noticed it yesturday. i got on the freeway and everything was cool on 1st and 2nd gear but when i got on it on 3rd at 3,500 RPM's it felt like it wasnt gaining any more and i noticed that my valves sound louder. kind of like when a honda v-tech valve sound when it kicks in. its a 2000 GT Vert with 80k miles. this is my first and only pony so i dont know much about the engin (YET) but if the car has been ran hard no drag little street race mostly pushing hard on the street as a daily driver. would i have to get my valve train checked? i now it wouldnt hurt but is this something that will normaly happen? i use good oil on a regular basis. the only thing i have lagged on is spark plugs. i have denso iridiums but no time to put them on. last time i changed them was about 4 months ago and i used some autolights (not sure). maybe its just time to change them and im just over reacting. but i am concerned about the valves sounding they way they do. any ideas?
 
OH WOW didn’t now that’s what pinging or detonation sounded like. I heard dreadful stories about that. ever since the gas prices started to shooting up i went from 91 to 89 octane. but haven’t heard any of it till ended up next to a wall on the on ramp and heard that valve chatter. By that time i had been running 89 for a few months so I don’t have a clue if it went away with 91. ill fill up with 91 and see what it sounds like then. if it still continues what then?
 
you shouldnt need to run anything but 87 octane with your mods, so i doubt its detonation, only way you need higher is from advanced timing from a t/a or a programmer/chip or if yer running lean, regardless u might wanna take it in, thats a very bad noise, hope its nothing serious
Spike