Ski-doo Formula S mods??? - Off-Road Forums & Discussion Groups
Snowmobile Lounge All general discussions relating to Snowmobiles

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 02-09-2000, 11:45 AM
Posts: n/a
Ski-doo Formula S mods???

Well, don't laugh, because my little formula S can hang with a lot of you out there. Obviously no because it is a powerhouse, far from one, but it is LIGHT! Dry weight is 430lbs. It has a pretty good power to weight ratio and handles great if you know how to avoid the ski lift. Well, what I would like to ask is: Does anyone know of some mods for the engine in this little guy. I love the sled becuase it is fun to ride and has never thought about giving me problems. You cannot complain about 430lbs.

Engine Mods, e.g. tuned pipe, etc, (anything other than milling or porting).
I am mostly concerned about low and midrange.

Clutch kits for the Bombardier light primary?

Any other mods would be great.


Sponsored Links
post #2 of (permalink) Old 02-11-2000, 06:05 PM
Posts: n/a
Re: Ski-doo Formula S mods???


You are right about those small 377's in a light sled. My oldest sled is an 89 safari scout (400lbs) with the 377 fan mill. It wasnt until above 60 mph that the lack of engine size became obvious. Thats when I had my dealer swap engines with another Skidoo I had. With a 498cc engine this is a wicked machine. And that is my recommendation to you. Find a wrecked low mile 498,put that 380 on a shelf for when you need to trade, and hang on. From looking at it The engines seem identical so it should be an easy swap and the sled weight shouldnt change. Clutch and carbs may need tweaking. best of all you will surprise a lot of people with that 380 hood decal.

post #3 of (permalink) Old 02-12-2000, 07:27 PM
Posts: n/a
Re: Ski-doo Formula S mods???

buy a new sled

"If YoU CaN't RuN wItH ThE ArCtIcCaTs, LeAvE YoUrS On ThE TrAiLeR"
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome