I shot Eddie an email. It kinda sucks though, as I don't know how loud a "loud" compressor should be. I don't have anything to compare it to.
they all make "some noise", but your dont want to have a "rattly" sounding one.
But even then, replacing the mounts/grommets quiets them down quite a bit.
Your at a crossroads....
If it were me, I'd put a spider valve on it..then later down the road when and IF the compressor dies replace the compressor.
Reason being.. is after you install the spider valve.. it changes the whole system's operation.
No longer is the dryer a "double pass" scenario, where all the air pumped in or vented out goes thru the dryer.
With the spider valve only INBOUND air goes thru the dryer, which goes ALONG ways in prolonging the life of a compressor.
spider valve is one of the BEST mods you can do to your car, as it greatly increases the life of the compressor.
Now, if you do the spider valve NOW..and compressor later down the road, the new compressor will not have had to deal with pumping water back and forth like the old one...and the time in the iterim using the spider valve will remove ALOT if not all the residual moisture that has accumulated in the system over the years.
If you have alot of moisture in the sytem, the "new pump" wont live very long.
recap:
get a spider valve now, so in the event you do have a compressor failure down the road you will have gotten alot of the compressor killing moisture out of the system already.
*whew*
sorry for the novel