ISR Short Throw Whirring Noise

[esceda]

So basically I installed an ISR short throw shifter in my 95 S14 and the rattles aren’t too bad but once I pass 4K rpm I start to hear a loud whirring noise until I upshift. Has anyone else had this happen to them? What could be the cause?

[afishysilvia]

http://zilvia.net/f/showthread.php?t=216784

[esceda]

http://zilvia.net/f/showthread.php?t=216784

In my case, it’s not rattling, just sounds like a high pitches noise gaining from 4K rpm in the tranny area

[afishysilvia]

In my case, it’s not rattling, just sounds like a high pitches noise gaining from 4K rpm in the tranny area

Was the snifter new or used? Did the bushing look okay?

[S14DB]

What bushing did you use on the bottom and what shift knob do you have?