Thunder Products (Big Venom Viper kit) with Heavy Hitters

[NOS-PRO]

Yes, it should work

 

[NOS-PRO]

Appreciate all the PM's, questions and positive feedback for the videos and on the low engagement we worked very hard to acheive, yet still pull hard thru the whole rpm range

You guys are awesome and I'm so glad I can help every one of you!

 

[trevorl1]

What is everyone running for a primary spring to get the low engagement?
I have a dalton Orange spring which is
Pre load 28kg
Total 132kg

 

[NOS-PRO]

Stock Blue/Silver/Blue

 

[nherbst454]

I've got the heavy hitters installed and tested back and forth in the garage, seems much easier to move slowly but still waiting on some snow to really see how it compares. I'm going from the COTC setup and one of my fellow riders has the same exhaust (MBRP Can) and still has the COTC setup so we'll get a chance to line them up if we ever get to ride!

 

[cannondale27]

So all you guys are ditching the COTC setup? Why? What is better?

 

[STAIN]

I am trying the Thunder product weights this year. I have never tried this weight. I have been running the Draggin Fly weights since their inception in a number of sleds and brands with great results. I have yet to try any other weight that pulls as hard . That being said my Turbo Viper flat spots the Draggin Fly weights very quickly. The 3 cylinder Yammi is harder on weights than most other motors. The flies don't seem as hard as other weights and wore out quicker in this motor. With the added turbo last year it was exceptionally hard on the Flies. I spoke with Lonn the other day and I am giving the Heavy Hitters a try. The approach to clutching with these weights vs. the Flies is kind of the other end of the spectrum---heavy/ heavy vs. light/light. I am kind of anal about my clutching and am constantly trying different things and testing to try and find the magic bullet. I usually don't believe in "clutch kits " and think that testing and running on snow again and again gives the best results. Results to follow once snow hits. I will be honest.
I wish I had all the money I spent on clutch parts over the years, I could probably buy a new sled!!!!
To test is to know.

 

[shagman]

I am trying the Thunder product weights this year. I have never tried this weight. I have been running the Draggin Fly weights since their inception in a number of sleds and brands with great results. I have yet to try any other weight that pulls as hard . That being said my Turbo Viper flat spots the Draggin Fly weights very quickly. The 3 cylinder Yammi is harder on weights than most other motors. The flies don't seem as hard as other weights and wore out quicker in this motor. With the added turbo last year it was exceptionally hard on the Flies. I spoke with Lonn the other day and I am giving the Heavy Hitters a try. The approach to clutching with these weights vs. the Flies is kind of the other end of the spectrum---heavy/ heavy vs. light/light. I am kind of anal about my clutching and am constantly trying different things and testing to try and find the magic bullet. I usually don't believe in "clutch kits " and think that testing and running on snow again and again gives the best results. Results to follow once snow hits. I will be honest.
I wish I had all the money I spent on clutch parts over the years, I could probably buy a new sled!!!!
To test is to know.

I also run a turbo viper. I ran these weights all last winter with great results (2800 miles). If you want any information at all from my testing just ask. I am trying to plan on making the Manitoba ride in February. Going to Colorado December 26 thru January 1 to ride and test at 10000' should bring more info home. Pray for snow. We need it.


Sent from my iPhone using Tapatalk

 

[TD Max]

So all you guys are ditching the COTC setup? Why? What is better?

Depends which way the wind blows...

 

[NOS-PRO]

So all you guys are ditching the COTC setup? Why? What is better?

Honestly....the adjustability and low engagement are the key items to the Big Venom Kit.

The COTC kit rocked! I am glad that I worked with Stingray and Shagman on that project because it was a lot of testing with proven results that was far superior to everything each of us on our own have tried. I tried to tap the holes out of the 8FP weights so I could have easy adjustability, but those weights are hard as hell and couldn't be tapped. All 3 of us tried different clutch setups and were not happy with certain things about each kit...the COTC got the best holeshot, the best mileage, the best pull and top end....but the kit lacked the quick adjustability and very low engagement.

Lonn called me one day because a place of business gave him my name because of a clutch setup that he was working on. After a few minutes of discussion, Lonn and I came up with a plan to make a kit with Thunder Products patented weights. I agreed because I needed something easily adjustable and with Lonn's background with working at Yamaha and who he know's ...it was a no brainer that I had a new friend that I could work with on getting a kick-butt setup. After a full year of real world testing, dyno testing.... we were happy to announce that the kit would be ready for Thunder Products to sell.

The Big Venom Kit has all the great features the COTC kit has, but with even more positives like adjustability, low engagement, more use of original parts and the best is the customer service from Thunder Products

 

[cannondale27]

Have you tested without the 911 cover you run? Just saying because that adjustable cover really smooths engagement and low speed with any weights. You guys are going almost 180 degrees opposite of COTC which uses a very unaggressive heavy weight to a light aggressive profile weight. Not saying it won't work but seems any setup works at least top end. Just saying this since all these latest and greatest things cost $ and was same thing with COTC it worked great but on snow didn't give anymore speed than all the other kits tuned correctly. Only real solution to getting more speed out of this sled which is by far number 1 complaint. Power.

 

[Janne339]

What weights in the COTC kit?

 

[stingray719]

Honestly....the adjustability and low engagement are the key items to the Big Venom Kit.

The COTC kit rocked! I am glad that I worked with Stingray and Shagman on that project because it was a lot of testing with proven results that was far superior to everything each of us on our own have tried. I tried to tap the holes out of the 8FP weights so I could have easy adjustability, but those weights are hard as hell and couldn't be tapped. All 3 of us tried different clutch setups and were not happy with certain things about each kit...the COTC got the best holeshot, the best mileage, the best pull and top end....but the kit lacked the quick adjustability and very low engagement.

Lonn called me one day because a place of business gave him my name because of a clutch setup that he was working on. After a few minutes of discussion, Lonn and I came up with a plan to make a kit with Thunder Products patented weights. I agreed because I needed something easily adjustable and with Lonn's background with working at Yamaha and who he know's ...it was a no brainer that I had a new friend that I could work with on getting a kick-butt setup. After a full year of real world testing, dyno testing.... we were happy to announce that the kit would be ready for Thunder Products to sell.

The Big Venom Kit has all the great features the COTC kit has, but with even more positives like adjustability, low engagement, more use of original parts and the best is the customer service from Thunder Products

Agree with everything NOS-PRO said, but will add the last version of the COTC I went to the Barn Of Parts for the soft start spring and achieved the very smooth take off at 2600 RPM. I now put BOP spring in everything (Terry try it...lol). NOW, that does not solve the problem with the 8FP weights in the COTC being adjustable only by changing rivets. For that reason I have went a different way with my turbo setup and away from non adjustable weights. COTC has its place and Big Venom has its place, I do not think there is a right or wrong answer here.

 

[trevorl1]

I'm still wondering how the venom kit would perform with a aftermarket helix.
I would like to be able to gain a little mpg.

 

[NOS-PRO]

Have you tested without the 911 cover you run? Just saying because that adjustable cover really smooths engagement and low speed with any weights. You guys are going almost 180 degrees opposite of COTC which uses a very unaggressive heavy weight to a light aggressive profile weight. Not saying it won't work but seems any setup works at least top end. Just saying this since all these latest and greatest things cost $ and was same thing with COTC it worked great but on snow didn't give anymore speed than all the other kits tuned correctly. Only real solution to getting more speed out of this sled which is by far number 1 complaint. Power.

Yes I have tried without the 911 cover, same low engagement.