For those new to the chassis, why does this adversely affect the design? Haven't researched any threads yet, but you guys have been around a fair bit, so I figure it would be an easy answer.

 

All superchargers take energy to spin. Larger, more powerful blowers require more energy. Transferring energy via a ribbed belt requires sufficient traction to prevent the belt from slipping on the drive pulleys (both the sc pulley as well as the crank pulley, where this energy comes from).

With a ribbed belt, this traction comes from belt to pulley contact surface area. Wider belt with more ribs = more surface area. More belt wrap provides more surface area.

None of these things are unique to this platform, but rather common to supplying drive power via a ribbed serpentine belt.

 

Something to consider to reduce potential belt slip...
https://www.z-industries.com/griptec-micro/

 

Oscar Jackson started Kraftwerks, so they are the one and same as Jackson Racing.

 

Any updates on this?

 

Just throwing this out there if anybody is still interested

 

I got a response that the kit will have a 2022 targeted release date , hopefully the kit will be competitively priced with the Krapwerks and SOS options.

Did anyone get a response about the belt wrap concerns from them?

 

Ironically, Jackson built the first rotrex kit for the S2000. A bottom mount C90-94, mounted below and in front of exhaust header.

Kit used a proper tensioned, ribbed belt. But suffered from pitiful belt wrap at crank. The existing serp belt was rerouted, and drove rotrex along woth all the other accessories. A longer belt used, and stock tensioner removed, new tensioner in different place.

Also some issues with it destroying water pump pulleys, so they eventually made a stronger wp pulley replacement.

Then they sold the kit to current Kraftwerks owner. They soon created their own all new kit, to support the larger C38 rotrex. This is the much maligned cogged belt kit.

So initial kit creator (Jackson) didn't seem to understand ribbed belt basics, and importance of belt wrap. Current kw desinger didn't follow basic rotrex kit design specs, which call for tensioned, ribbed belt. Also created a series of bracket mounts that were one design problem after another.

Most recent kw kit uses one off tensioner, of a design unlike anything else. Every ice engine of the past 40 years uses a tensioner of virtually the same basic design. Proven. Refined. Bulletproof. KW then uses something unproven, with obvious flaws. Why would anyone do that?

Ballade conversion kit has no tensioner, and poor belt wrap. Recipe for failure.

Never seem to hear of any issues with tts, and their kit is only one currently available that follows rotrex kit design specs. Proper tensioned ribbed belt, modern tensioner, impressive belt wrap.

This new Jackson kit has way better belt wrap than their original bottom mount C30 kit. But nothing like tts has. My guess is it won't cause any major issues unless you're running a larger hu (-92, etc). But some belt slip will probably always be present at times.

 

Based on my correspondence with them, it doesn’t sound like they will be making any changes to the design we see. It sounds like the kit has/is being thoroughly tested.

”The kit that has been displayed has been operating on multiple vehicles for multiple years now. With extensive street and track mileage, our belt drive has been proven and tested. Belt wrap is important, but overall belt drive design is critical as well.”

 

I'd go TTS and call it a day. Why risk going with something that is not optimally designed?