fastest vintage free air - Page 2 - Snowmobile Forum: Your #1 Snowmobile Forum
http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Specific Snowmobile Forums > Vintage Snowmobiles


» Sponsors





Reply
 
LinkBack Thread Tools Display Modes
Old 11-28-2010, 10:08 AM   #21 (permalink)
Registered User
 
kenvb's Avatar
 
Join Date: Oct 2009
Location: Whitecourt Alberta Canada
Posts: 19
I had new Free Air Rupp 440 Nitro, was fastest thing in town back then, the dealer I bought it from would bet us bottle of wine if anyone could beat it, I had a 669 TNT that couldnt,friend had as 634 Puma that couldnt either, so I bought it. we would tear around town with files welded under the skies, homemade picks on track,the Local RCMP had a cleated track AC that couldnt keep up ,,we had fun with that.

I still have a lil JD Spitfire 340 free air, runs great,40 below or above freezing, its a loaner for friends and grandkids, .I have been riding a new Polaris every 2 yrs since 1989..no more junk for me,I work on junk every day,sick of it.
Attached Thumbnails
fastest vintage free air-john-deere-snowmobiles-004.jpg  
__________________
what goes around ,comes around.
kenvb is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-08-2011, 09:58 PM   #22 (permalink)
all sleds R great!!!!
 
Join Date: Feb 2011
Location: Toronto
Posts: 231
i had neighbours that owned a marina, and the kids raced MERC Sno-Twisters...440 F/A ......all i know is that on a really cold day, they were extremely fast. i'm sure the Cat El Tigre was super fast too....i also think RUPP had a 440 F/A that was fast.
Quincee33 is offline   Reply With Quote
Old 03-09-2011, 07:32 AM   #23 (permalink)
Registered User
 
kenvb's Avatar
 
Join Date: Oct 2009
Location: Whitecourt Alberta Canada
Posts: 19
fastest free air

the all time fastest free air was the Arctic Cat 4 cylinder 800 cc King Cat..nothing could beat it,so they stopped the 800 class and banned it from the racing circuit .The sound alone would intiminant most racers ,They would sit at the back on porpose...and just let the rest take off,then they were gone, they were very hard to handle,took a hell of a driver to run those,Like having a V-8 in a Vega,,( I built one of those)
__________________
what goes around ,comes around.
kenvb is offline   Reply With Quote
Old 03-09-2011, 09:44 AM   #24 (permalink)
Registered User
 
Join Date: Mar 2011
Posts: 1
Quote:
Originally Posted by WHITE POWDER View Post
I am talking about pre 1985 sleds...what is the best/fastest free air overall. Im building an Srx 440 right now but also want to race with my buddies in the f/a division. One has a 1975 Mercury Sno Twister, and the other has a 1975 Yamaha GPX 433. Their sleds seem to be one of the fastest in the straights, on the oval track. Thanks for the help, I am new to the site.
look at a1975 suzuki fury if you can find one..... this is the sled engine combo that conviced cat to drop kawasaki power in favor of suzuki. the demand from cat said(i beleive) that the engine must be strong enough to break then current speed standards( ie 100mph) in a production machine. the fury did this and more.... i personally have run a real clean fury here in michigan and of course having to relie on the speedo for speed hit 108 in a short orderand then held it .
snowmobilenut64 is offline   Reply With Quote
Old 03-09-2011, 05:57 PM   #25 (permalink)
all sleds R great!!!!
 
Join Date: Feb 2011
Location: Toronto
Posts: 231
those king cat's were true muscle sleds....looked badass...love seeing vids on youtube with that big engine sticking out the front.
Quincee33 is offline   Reply With Quote
Old 03-09-2011, 07:11 PM   #26 (permalink)
Registered User
 
Join Date: Mar 2011
Location: Alberta
Posts: 16
Gunna have to vote for the polaris tx's as they were very tuff lil engines and higher tech than the doo's and on par with the cats but the tx's were lighter than the cats. I i do belive cats had a couple horses on the tx's due to their cyl. porting. But the tx is hard to kill.
ktmbmk66 is offline   Reply With Quote
Old 03-09-2011, 08:06 PM   #27 (permalink)
Registered User
 
Join Date: Mar 2008
Location: Peterborough Ontario
Posts: 145
Quote:
Originally Posted by WMarshy View Post




I wish I have more pics of it, its spotless! How fast you think this thing is? I dont even know how many cc's this baby is... Anyone?
is that snow and ice in the carbs? ooch
__________________
1994 583 rotax
1993 yamaha big bear 350 4x4
1986 srv 540
1988 xlv 540
1979 invader 440
danno583 is offline   Reply With Quote
Old 03-09-2011, 08:11 PM   #28 (permalink)
all sleds R great!!!!
 
Join Date: Feb 2011
Location: Toronto
Posts: 231
sweet....AMF! didn't they make Harley's in the 70's....
Quincee33 is offline   Reply With Quote
Old 03-10-2011, 07:13 AM   #29 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,061
Yes they did.
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 03-10-2011, 08:52 PM   #30 (permalink)
Registered User
 
Join Date: Dec 2010
Posts: 143
I here the old Skirole RTX 800 could beat the King Kat but I dont know if it was a free air or fan cooled
ryanhermann is offline   Reply With Quote
Old 03-10-2011, 08:57 PM   #31 (permalink)
Registered User
 
Join Date: Dec 2010
Posts: 143
I just checked Dave's brochures and it is a free air 800
ryanhermann is offline   Reply With Quote
Old 03-10-2011, 11:13 PM   #32 (permalink)
Registered User
 
Join Date: Mar 2011
Location: Winnipeg, Manitoba
Posts: 5
Quote:
Originally Posted by gbryanton View Post
The 440 tnt free air had good handling and had hydraulic brakes providing better braking and the engine had lots of power.
Find a '72 or 73 440 rotary valve blizzard which can out perform the 645 and 797 triple blizzards.
cdem72 is offline   Reply With Quote
Old 03-17-2011, 02:23 AM   #33 (permalink)
Terrain Dominator
 
JD8345RT's Avatar
 
Join Date: Aug 2010
Location: Barnesville MN
Posts: 1,887
Quote:
Originally Posted by kenvb View Post
the all time fastest free air was the Arctic Cat 4 cylinder 800 cc King Cat..nothing could beat it,so they stopped the 800 class and banned it from the racing circuit .The sound alone would intiminant most racers ,They would sit at the back on porpose...and just let the rest take off,then they were gone, they were very hard to handle,took a hell of a driver to run those,Like having a V-8 in a Vega,,( I built one of those)
Stuff could beat it though. Like you said, it had a killer powerplant, (even with '71 HP/CC ratios) but poor handling. Didn't corner well, and was a little bit on the heavy side to be dominant contender on ice ovals. Fantastic straightline sled though! (But not the all-time fastest F/A)

That Vega analogy was funny..
__________________
2006 Arctic Cat Crossfire 7 FOR SALE
1996 Polaris Indy 500 SKS
1980 John Deere Trailfire 340
1979 Arctic Cat El Tigre 5000
JD8345RT is offline   Reply With Quote
Old 03-17-2011, 04:55 PM   #34 (permalink)
all sleds R great!!!!
 
Join Date: Feb 2011
Location: Toronto
Posts: 231
cool. ig uess not alot of sleds back then had great handling.... but the 70's were a great period in snowmobiling....lots of different companies....different looks... definately a booming era, too bad so many companies didn't make it into the 80's!
Quincee33 is offline   Reply With Quote
Old 03-29-2012, 02:55 AM   #35 (permalink)
Registered User
 
Join Date: Mar 2012
Posts: 1
Merc 440 Sno-Twister vs. 440 Trail & 433 Yamaha

My Dad was Merc from day one. We began with the 220 tanks and finished The Kiekhafer era with the stylish 644. He was first in line when the Sno-Twister came out. He bought a 440 Sno-twister for himself and a 340 Trail Twister for his wife. Since she rode slower the liquid kept it running a little better. He ended up with a 250 later as well. Pops only weighs 125 pounds and was asked by a lot of friends to drive their sleds too. He's still got the trophy's from a of victories. When his brides 340 was in the shop they let him have a 440 Trail Twister for the week. We raced them side by side nearly a mile down the road past our house. If the 440 trail-twister was faster than it's 440 free air-brother we never saw it in those two sleds.
My best friend also had a 433 Yamaha. We spent a 2 days riding them from school to his place along the Mississippi. We raced several times across some frozen backwater lakes and no mater how hard he tried he could not out run the Merc. There is a nice little driveway road about 5 ft high leading to the Welcome to Wisconsin Sign along US Highway 63 from MN at Red Wing. We spent about 2 hours increasing speed hitting the jump until we reached about 85 MPH. Cars would honk or slow down to watch as we went airborne. Whether it was hitting the jump or the landing I'm not sure, but I ended up bending the tie-rods which pushed the skis on their spindles back into the engine compartment about 5 inches so steering was reduced as it meant hitting the clutch with steering arms. Dad was not impressed. He didn't believe it happened when we dropped it off the bed of the pick-up. The hydraulic jack straightened things out. The Good Old Days
Tokengimp is offline   Reply With Quote
Old 03-29-2012, 03:15 PM   #36 (permalink)
Registered User
 
kenvb's Avatar
 
Join Date: Oct 2009
Location: Whitecourt Alberta Canada
Posts: 19
old fast sleds

you guys are right, those were the fastest sleds around,like one said,like putting a V-8 in sa Vega,,I also did that,a 73 vega with tube frame,a LS7 427 w a powerglide and 9 in Ford narrowed diff w 4.11 spool..was a bitch to drive around town unless you punched it in corners.LOL ..

BUT those old sleds never lasted 20,000 miles like a lot of new ones,my 92 Polaris 500 EFI had that,it was ex rental sled out of Yellowstone park.,
my 03 800 Polaris has had a crank and top end at 3000 miles, new machines are garbage,,like to find a 4 stroke yamaha someday.
__________________
what goes around ,comes around.
kenvb is offline   Reply With Quote
Old 04-17-2012, 12:47 PM   #37 (permalink)
Registered User
 
Join Date: Apr 2012
Posts: 5
1970 Snow Cruiser 200 E

Quote:
Originally Posted by kenvb View Post
1970 Snow Cruiser 200 E
I had a 1970 Snow Cruiser 200 E that I used in high school. The first year I got it, it snowed 10 feet.

That was a good solid snow mobile. Do you know what clutch is in that Snow Cruiser? Is it a Salsbury?
ry007 is offline   Reply With Quote
Old 04-17-2012, 04:31 PM   #38 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,061
Yep.
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 04-17-2012, 10:13 PM   #39 (permalink)
Registered User
 
Join Date: Apr 2012
Posts: 5
Quote:
Originally Posted by kenvb View Post
1970 SnowCruiser 200 E For sale -$1000
To think my dad paid $1,000 for the 1970 Snow Cruiser 200 E in 1970. And here it is 42 years later.

ry007 is offline   Reply With Quote
Old 04-18-2012, 11:38 AM   #40 (permalink)
Registered User
 
Join Date: Apr 2012
Posts: 5
Quote:
Originally Posted by snowmobilenut64 View Post
look at a1975 suzuki fury if you can find one..... this is the sled engine combo that conviced cat to drop kawasaki power in favor of suzuki. the demand from cat said(i beleive) that the engine must be strong enough to break then current speed standards( ie 100mph) in a production machine. the fury did this and more....
Arctic Cat was testing 3 motor brands at the time. They wanted to get away from Kawasaki because of warranty issues. AC really wanted a much more durable engine, as well as powerful.

I wonder what motors AC tested back in the 70s.
ry007 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:08 AM.



Copyright SnowmobileForum.com

Search Engine Friendly URLs by vBSEO 3.6.0