Primary Spring Table

Spring	Stall	Shiftout	Note	Actual Measurement	Advertised Measurement
EPI Bright Green	22	121	1		Yes
Stock V-Force	0	122	2	Yes
Polaris Green	42	135			Yes
EPI Gold	25	140			Yes
Polaris White	34	140	3	Yes
EPI Red	37	140	3,4	Yes
Dalton Black / White	45	143			Yes
AAEN Green	54	154	5	Yes
Dalton Blue	3	155	6		Yes
Dalton Black / Orange	56	157	7		Yes
EPI Almond	19	160			Yes
EPI Pink	0	161	6		Yes
Dalton Orange / Blue	25	167	8		Yes
EPI Maroon	1	170			Yes
Comet Black	38	172	9		Yes
Polaris Yellow	45	178			Yes
Polaris Brown	50	180	10		Yes
Hotseat Violet	34	181	11	Yes
Hotseat Blue	60	188	12		Yes
Polaris Orange	70	195	12		Yes
Comet Red / Blue	58	205	9		Yes
HPD Plain	30	235	13	Yes
Polaris Red / White	100	215	14		Yes

1) If you're satisfied with the stock spring, but want a little better drag race result, the extra stall of this spring over the stocker should help.

2) With the stock spring I ran close to a modified Banshee through his first 5 gears, but when he hit sixth it looked like I was in reverse. Eventual loss by 5-6 quadlengths and he was still pulling away.

3) The EPI Red and Polaris white are basically the same spring. BIG improvement over the stock spring. Fell behind the same modified Banshee by a couple of quadlengths in a race, but he COULD NOT increase the lead any more than that. I never got to line up with the piped Raptor with just this spring change, but I believe this alone would have been nearly enough to keep up with him. These are the springs to use on a stock V-Force if you want to race a little.

4) I believe this is the spring that comes in the EPI Pro Clutch Kit.

5) AAEN rates this spring at 60/200, but when put on a scale and measured, this was the actual measured rate.

6) Good replacements for the stock spring for those who don't want any stall, but still want better performance.

7) A friend used this spring on a stock V-Force with good results. He still uses the spring with HMF duals and it runs well.

8)This spring seems to work very well on piped V-Forces and has given me my best results.

9) Comet uses a different measuring system for their springs. These numbers are a conversion over to the system most other companies use.

10) Engagement seems harsher than the 50 rating would indicate.

11) This spring came from a Hotseat Performance clutch kit for a Polaris Sportsman and is not still available from Hotseat. This is the spring I was using in the race pictures easily outrunning a piped Banshee and piped Raptor.

12) These springs have a little too much stall to trail ride with, but might work well in the sand where you are not dodging trees and other obstacles at low speeds. You can use the Dalton weights to bring the stall down on these springs.

13) HPD also rates their springs differently than other companies, so this will not correspond to what's on their web site. Even after a Trinity racing carb was added to the same Bansheee, I could easily pull him by 2-3 quadlengths every race with this spring. Probably too much spring for most V's (mine included), but it works very well for me in short drag races but does not work well at all in a long road race.

14) The only reason I included this spring was to show the difference between the Polaris clutches and the Kawasaki's. I used this spring for trail riding for a while on a Scrambler 400, while on the V-Force the stall was so high I could barely get it out of the driveway.

Shims can be added under the springs to raise their rates.

Comet snowmobile springs are interchangeable with Polaris springs.

This also makes them usable in the Kawie's.

Left to right: Stock V-Force, Polaris blue/green (stock Scrambler 500), HPD Plain, Polaris White, Hotseat Violet, Hotseat Blue, Polaris Brown, Polaris Orange, Polaris Red/White.

Left to Right: Polaris blue/green, Stock Prairie 400, Dalton Blue/Orange, HPD Plain,

Hotseat Blue, Comet Red/Blue, Polaris Orange, Polaris Red

Thanks to Rick Ritter of Ritter Cycle Racing for the spring measurements.