The noise from the front spout of my KB sounds like a thrashing machine at idle. I called KB and they said it was normal, especially with a rough idle(cams). It does seem to quite down some with some rpm's. I just wondered how many of you guys with the KB's are experiencing the same thing????
Thanks
Mike

 

Thats BS
My first KB was like that

KB sent me a new unit and it is as quiett as the stock blower.

I have a set of Crower cams so tell them to send you a new blower.

 

I agree with Don, tell them to send you a new one.

I dont have aftermarket cams, but mine is quiet

 

Mike,
Aren't you on your 2nd KB already? I thought it was you I was talking to at Gainesville that had one seize up.

Eric

Ps. You heading to Lightningfest?

 

It seems as is mine is getting noisier with time. It has around 18K miles.

 

Mine is noisy at idle, but is quiet at any other rpm. I think it may have to do with the blower rpm at idle, but I can't really prove it. When I first put the blower on I ran a 3.5 pulley with a 4lb lower pulley(not sure of size) and it was quiet. I then upped the lower to a 6 lb(9 inch) and the noise started. I now have a 2 3/4 upper with the 9 inch lower and it has gotten quieter again. I was told it was gear lash?? I'd be interested in knowing what you find out.

Thanks Mike

 

Don,
Send me an email so I can email you back.
Thanks
Mike

 

Don,
mmeyers@innet.com
Mike

 

If the idle is low, like 650 or so, and you have a lumpy cam they will make that noise. If you raise the rpm slightly it will go away.

 

No unusal noise from mine, mind you I only have 500 miles on her. I am running a 3.20 upstairs and a 9.25 downstairs. Stock lower, cams etc.

D-Day