3000 rpm rattling
#1
Race Car
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i have a bad rattling right about 3000 rpm. annoys the heck out of me. i hollowed out the cat, but the body is still there. i'm thinking it's either the heatshield above the cat that's loose or something in the cat itself.
any other thoughts?
any other thoughts?
#4
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Was the "rattle" present before hollowing the cat? Possibly the "rattling" sound is a resonant frequency of the motor freed from the muffling effect of the stock cat, i.e., unpleasant engine firing noise exiting through the exhaust. A similar noise is produced when using header and test pipe although it seems to be evident at part throttle throughout the rpm range. I avoid the rattle by keeping the throttle fully open when at all possible. YMMV.
#6
Nerd Herder
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Originally Posted by Carl Nall
I avoid the rattle by keeping the throttle fully open when at all possible.
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#7
Race Car
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nope, not balance shafts. yea, i know about your test pipe. i'm thinking i need to get rid of this hollow cat and either put on a straight pipe or maybe a high flow cat.
and yes, i do like the WOT concept
and yes, i do like the WOT concept