Vortip and Backpressure
Posted April 11, 2003 - 09:57 AM
Has anybody that has a Vortip, modified the three pipes that are inserted into the exhaust can, by cutting them down or drilling holes to allow a greater flow, without the high dB sounds? The thinking here is to allow the punch of the E** needle and the quiet of this exhaust tip.
Stumped (like usual),
Posted April 11, 2003 - 10:11 AM
I think I may have ordered a d series needle. It's in my truck so I don't know but I will check it out a little later
Posted April 11, 2003 - 02:36 PM
Posted April 14, 2003 - 04:31 AM
Dont give up on the E series needles yet...biggest single improvement in the bike's performance I've made was going this route...
If you havent tried this, you may consider going to what I refer to as my "super high altitude" jetting setup...with an EKQ needle and a lower MAJ (see sig below). Hick also runs this needle with a 40PJ/75PAJ at about 4K ft if I remember correctly (you might consider this as well).
Maybe something like 38PJ/75PAJ/EKQ#2/150MJ/200MAJ...?
Just my $0.02...
Posted April 14, 2003 - 05:10 AM
I didn't give up this weekend. I removed the Vortip and its a completely different bike... All I can say is OH my God... The YZ Timing and the E series needle ROCK.. The vortip was almost clogged. The end tubes had about 1/4" hole for the exhaust.. I will not be putting this tip back into the bike. Maybe look at the PMB or the GYT-R tip, but time to sell the Vortip.
All I can say is Thank You for time that you took to find a great combination that works out here in Colorado.
Posted April 17, 2003 - 05:12 AM
Posted April 17, 2003 - 11:53 AM