Whoa, didn't expect to see this topic on here. As Hunt Talk's resident sledding fanatic, I feel it is time to clear the air on this issue. We beat this one to death on SnoWest the day it came out. That'll teach me to stay away from here too long.
BTW Ithaca - I did a search on the Times website for other articles written by her. She is green, has a pen and a huge audience. She answered three emails from me so give it a shot. I'm sure she has plenty of dirt on the BRC she could share with you. Oh, another thing. I guarantee this "Fat-assed Snowmobiler" is in better physical condition on my worst day than you have ever been. Your knee-jerk reaction gave you a bloody nose this time. On this issue you are completely full of shit, and I'm going to prove it.
Elkgunner - Let me know if I've spent enough time reading on this issue. After reading this post, if you still feel it is a real issue and not some drummed up BS written to sway the public's opinion using literary omission, I will be happy to discuss it further any time any place. You too Ithaca.
Nice work Ten Bears. Your research, answering Elkgunner's challenge, shut everyone up. Here is your link again, plus another one. I'm posting these because they contain information pertinent to parts of this post. Both originally appeared on the Business Weekly website.
http://biz.yahoo.com/bw/030905/55432_1.html
http://biz.yahoo.com/bw/030905/55434_1.html
This article first appeared in the LA Times Thursday 9/4, the day before it appeared in the Idaho Statesman. Because the author, Ms. Julie Cart, chose not to post any numbers, I wrote to her to get some facts and data since she decided they were not important enough to include in her article. Anyone read what the standards were that the sleds failed? Not an accidental omission I'm guessing.
First some background. Below are the EPA regulations found at this link
http://www.epa.gov/otaq/regs/nonroad/2002/cleanrec-final.htm
The Primary Fact Sheet (PDF) is here:
http://www.epa.gov/otaq/regs/nonroad/2002/f02037.pdf
On page 4, table 2 sets standards for snowmobile engines as follows, with HC & CO measurements in g/kW-hr, and includes 50% phase-in for 2006, 100% phase-in the following years. They are:
.HC.|.CO.|.Year
-----------------
100.|.275|.2006
100.|.275|.2007-9
.75.|.275|.2010
.75.|.200|.2012
The much more strict standards (Business Weekly) set by Yellowstone Park are:
.HC.|.CO.|.Year
-----------------
.15.|.120|.NOW
Implementation of YNP standards occur this year according to Ms. Cart.
Ms. Cart provided the numbers for the sleds described in her article. Their numbers were:
"polaris: CO 111.6 and 140.0, HC 5.4 and 10.0,
arctic cat: CO 95.8 and 115, HC 6.8 and 10,
arctic cat: CO 223.4 and 270.0 and HC 3.9 and 6.0."
She added "The smaller number is the average emissions taken over three days of testing. the second, larger number, reflects the worst-case emissions over the same period. The more conservative number is usually taken as the benchmark, although the park service has not decided which to use."
No data given on the "noise standards failure".
Note under worst-case emissions all pass the EPA stds. effective 2006 up to 2012, but that's not very relevant. In my opinion, they are not strict enough when you take into considerations rider behaviors (sitting & idling), the weather (inversions) and the fact the other ORV stds are much more strict.
Ten Bears posted a link showing that 5 models passed the emissions plus sound requirements one day after Ms. Cart's article was published. If you read the standards set by Yellowstone from the Business Weekly article, you may notice that two of the three sleds that "are dirty" actually pass YNP emissions standards if you look at their three day average. Considering the park has a speed limit of 45 MPH or less and allows no riding off trail, I think that would be appropriate measure.
Something else that was not addressed at all was the comparison between 2002 and 2004 models. No one seems to know which 2002 sleds were used for this literary comparison. Except me of course.
Laboratory Testing of Snowmobile Engines Go to the
Selected Links section, then go to page 11 of the linked PDF (Laboratory Testing of Snowmobile Engines) near the bottom of the paragraph. A little research goes a long way. The 2002 testing involved a mass produced Arctic Cat, a prototype Polaris not available to the general buying public, and two sleds from the SAE Clean Snowmobile Challenge (CSC). This distinction is important because it is not a valid comparison when looking at mass-production items against prototypes. It bears mention because it was used to discredit three 2004 sleds.
On the other hand, the manufacturers would not comment to Ms. Cart before her story went to press. This I believe was a mistake because it left them wide open for criticism, some justified and some nonsense. I think they needed to explain why the sleds are failing YNP stds., why they even submitted them for certification if they knew they would fail. A good faith comment at the very least is warranted.
I do think Yellowstone should be continued to be enjoyed from a snowmobile. Ban them all. Please! The park strictly enforces a 45 MPH or less when posted speed limit and strictly enforces no off-trail riding with a $5000 fine. In my opinion, loud, two-stroke, modified, high-performance sleds (like mine) have no place in the park. It is for these reasons that I want the manufacturers to step up to the plate, because it is only those that ride snowmobiles in the park that stand to loose anything.
edit: Why not. For your reading pleasure
The SnoWest thread
<FONT COLOR="#800080" SIZE="1">[ 09-17-2003 00:48: Message edited by: HANGAR 18 ]</font>