Need some help!!!

[StrEEt MaFiA]

lately ive noticed that when i floor my car.....i would say about 4k rpms this rumbling sound and feeling in the car will come. i mean my clutch has slipped very rarely so i dont kno whats goin on.

[jersey_emt]

VTEC JUST KICKED IN YO

[jeffmsp]

maybe try inspecting your motor mounts to see if the motor is moving around at that rpm because in mine thats when the car really starts taking off, i ended up switching to a solid mount to prevent it, but I would check your stockers before buying anything(mine looked fine, but maybe yours will show wear)

Other than that, check your air filter, all of your vac connections etc. you may also want to try resetting the ECu(unplug battery and hold down the brake pedal for 15-20 seconds), that has helped me out a few times.
Did you add anything new to your setup recently?

[StrEEt MaFiA]

nah man ive had the same mods for a while now........but its like the whole car shakes kinda and i dont know if its the clutch or something maybe worse

[jersey_emt]

Could be any number of things, is it based solely on RPM or does the car's speed matter?

Just to rule out any alignment/wheel balancing issues.

Could very well be motor mounts like the person above mentioned.

[StrEEt MaFiA]

no its only at about 4k rpms........it doesnt happen all the time either........my clutch is grippin now too so i dont think it was that

[jeffmsp]

will it happen if the car is in neutral and you rev it up to 4k?

[StrEEt MaFiA]

no it wont......only when in gear

[ND4MSP]

funny you posted this mafia, I just posted in a thread above this one about the same thing. I don't know what it is. How many miles are on your car? I have a lil over 30k on my speed.

[StrEEt MaFiA]

in about to hit 40K

[StrEEt MaFiA]

bump