Fluttering please help
 

I was driving home from school the other day and I just put in a B18B for boosting purposes. I have broke it in and it now has 1000 miles on it. I decided to open her up once and like something broke. Whenever I floor it and its at wide open throttle the car makes like a fluttering noise. I though maybe that i blew a weld on the exhaust, cuz that is the sound it makes. I checked and found nothing visibly wrong. Please give me suggestions to what i did.

Re: Fluttering please help
 

I would do a leakdown test

Re: Fluttering please help
 

i would describe wtf you mean by fluttering...

Re: Fluttering please help
 

what i meant by fluttering is, when i floor it the car kind shakes and it sounds like it is farting, i guess that is the best way i can put it. Like imagine a go carts loud putting noise it makes, putt putt putt putt

Re: Fluttering please help
 

You're leaning out.

edit: You probably fucked something up.. burnt a valve.. you did something bad.

Re: Fluttering please help
 

if i burnt a valve wouldnt I be able to feel it more often then just when I floor it?

Re: Fluttering please help
 

Do you have a vacuum or boost gauge? If you have a fucked valve your vacuum levels will flutter with an idle that doesn't flutter so much.

Re: Fluttering please help
 

:l

Chris, if you still want to ditch being mod I'm down.

Re: Fluttering please help
 

thanks for the help guys, but I just fueled up with a higher octane and the noises went away.

Re: Fluttering please help
 

:X

What?

You were detonating? It sounded like pinging? Or flutter?

Check your plugs ---- head.