E-series disk questions
Posted February 07, 2002 - 07:01 AM
1.) On an E-series, do you count the sound deflector, spark arrestor or end cap as disks?
The WB manual doesn't indicate one way or the other, but I'm leaning toward, no only a blank diskd is a "disk".
2.) What have other riders found to be the optimum number of disks for the strongest bottom/mid with YZ timing? Can is matched to a WB tapered header. E-series Shorty can.
Sound output- What number of disks is a happy medium betwen sound output and power? Is there any accessories that will lower the sound w/o decreasing power? I use the 180 degree (wraps around both sides and top) sound deflector currently, but I'm looking for something even quieter is possible. Probably not, huh?
Posted February 07, 2002 - 10:21 PM
Most pepole here find that more discs = more top end, less discs = more bottom. I run 12 and find it real fun on tracks but yes it is loud and wonder what that can do to our sport. I will not put such a loud pipe on the next bike I get and I will remove a few next season. I think 7 or 8 will suffice.( I sold the original pipe on the WR side ) BTW I run the high-boy header for ease of oil change. It mirrors the stock pipe, adds just a little more everywhere.
[ February 07, 2002: Message edited by: Hugh LePage ]
Posted February 07, 2002 - 11:00 AM
I run 5 to 7 disks depending on elevation. I remember reading a old posts and most seem to prefer 6 to 9 disks (do a search). I tried more and found I needed to re-jet so I went back to my original configuration. I also bought the quiet core insert which reduced some of the dbs. It's still fairly loud, even with the insert and the small disk quantity...but my old Yosh was much louder.
I have found that the factory packing sucks. After 3 or 4 rides my original packing was almost gone. The poor guy behind me was getting peppered w/ shreading fiberglass.
hope this helps
Posted February 07, 2002 - 02:16 PM
The end caps. When I bought mine (99) I wasn't given a choice (I have the big oval and run the blank + 12 discs). I see in this months Dirt Rider a pic of an E-Series with what looks like a stock YZ End cap.
Does that replace the oval end cap. If you use the YZ style end cap, do you NOT use the Blank disc?
Posted February 07, 2002 - 04:44 PM
Posted February 07, 2002 - 05:51 PM
Mike in Roseville
Posted February 08, 2002 - 04:59 AM
I will try 9 disks and go down from there. I was using 12, and it's just too loud. Loved the power, but absolutely no stealth. I'mwilling to drop a pony or two to make less noise.
Bill, I think the turn-down tip is not compatible with the blank disk, which is really the spark arrestor! The turn down should be quieter by nature, but don't want to loose the SA capability (it's required in a few places I ride, not that anyone has checked, but I don't want to be guy starting fires!). If this isn't true, the turndown may be the ticket!
Can anyone comment if the turn-down tips work with the spark arrestor?
Interesting comment on the packing, my pipe was used and probably has the original packing. I don't see any stray fibers coming out, but probably wise to replace the packing anyway, huh?
BTW, anyone with a Ti E-series for sale?
Posted February 11, 2002 - 09:50 AM
I've noticed a few other missing posts before, too!
Posted February 11, 2002 - 10:51 PM
I do have a brand new WB quite core insert that I'll sell for $20 if you are interested
Posted February 12, 2002 - 05:45 AM