just got FI metallic HFC, odd noise, suggestions please
#31
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#33
Originally Posted by aHero4Eternity
how come andrew's car gets this ZZZzzzz noise with his injen exhaust which is less that 6 months old?
actually, i'm getting a little rasp right now with my stock exhaust...but only when it's cold. after 2 mins of driving it's gone.
actually, i'm getting a little rasp right now with my stock exhaust...but only when it's cold. after 2 mins of driving it's gone.
#35
Originally Posted by aHero4Eternity
any ideas as to what heat shields/deflectors would be buzzing? why only when decelerating and during certain RPMs?
Rick
#37
#39
Originally Posted by aHero4Eternity
but why not when accelerating at those same RPMs? sorry for the questions...just confused/curious
To me, there is more stress on the car, transmission, engine torque on deceleration or downshifting, so the effect is more promenant.
I thing you can hear it when accelerating too, it just blends better with the engine sound at that time.
Not a great answer....but like I said, I really don't have one either in this case.
#41
ya i am having this same problem acctually with the test pipes i just bought from drunkenmaster aluminized from F.I. also. does the buzz sort of sound like an air leak when decelerating because my car does exactly how they described there noise and honestly it has been extremely annoying me and it is embaresing just wondering what i can do if anyone figures this out
#42
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#44
ya it really is strange but annoying im not sure why Fast Intentions Pipes would work fine on one car then sound wierd when put on mine. but one thing i do know is that when you put a aftermarket exhuast on from my expirience at least the sound will only get louder thats why i took mine off and am looking for a solution. also i dont want it to sound wrong as in im trying to put down F.I. or Rick just saying wat has happend i know they are good people who do good work this is just strange
#45
Well guys - this is most action on this topic I have ever had.
We have made it go away with factory Y-pipe removal, flex joint removal, etc...but have not had it come into play with those items gone out of the equation.
the increased flow and pulse characteristics must be making this happen - it's the only thing I can think of. When I tested the Crawford's, on a stock system, we had the issue too, but when the y-pipe went..so did the issue.
hmmmmm...again....
We have made it go away with factory Y-pipe removal, flex joint removal, etc...but have not had it come into play with those items gone out of the equation.
the increased flow and pulse characteristics must be making this happen - it's the only thing I can think of. When I tested the Crawford's, on a stock system, we had the issue too, but when the y-pipe went..so did the issue.
hmmmmm...again....