Disclaimer- I do not work for or am affiliated with the vendor who makes this LSD upgrade kit. I simply wanted to be the guinea pig to try a lower cost option for an LSD upgrade
I had looked at the AMS and Z1 diff upgrades and it seems like they were pretty expensive and in some cases required a core or shipping your center section back, so I began researching alternatives. I found a post where someone confirmed that the rearend in our cars is called the "R190" which has been around for quite some time in 1 form or another. When I searched for R190 LSD, I came across a company called Traction Concepts. They've been around for quite awhile in the racing scene (auto-x, rally, drag, etc.) and sell plate style upgrade kits to convert the 1 tire fire into an LSD for $350. They are made to fit inside the existing diff and apply spring pressure to the gears to keep both wheels turning when torque is applied, but still act like an open diff when there is light throttle or tight turns like in a parking lot. Being that you use the same ring/pinion gears, you don't have to worry preload/backlash/break-in etc. Install and go! I talked at length with their engineer who actually stated how robust the R190 rearend is, particularly with this upgrade. He said he has no concerns with 500/600/700 hp. Here is the process for the tear down and pics of the installed upgrade......
12/25/20 update....4.2 0 to 60. No tune, rwd, JB4 car. This LSD upgrade is holding up great.
9/15/22- Traction Concepts contacted me with some additional info (GOOD INFO) that I'm passing along:
" While the traction performance is the same or possibly superior to other limited slip LSDs and lockers on the market, the design is completely different in the way that it is not a replacement part/diff like the higher priced options. The reason we continue to be compared to the replacement diff options on the market, is because of the results in performance and traction gains our users are getting. We welcome any of the users in your network to reach out and share their experiences with us whether good or bad. Or reach out if they need a better understanding of the product and functions of our design.....
We work alone, without gimmicky accessories, friction plates, or additives and have been in the game doing this for 27 years now perfected and the largest LSD Conversion Company in the world because we are the designers.
When the vehicle manufacturers contact us directly to offer solutions to their OEM set ups for their motorsports teams, we must be doing something right. Currently at this moment in time, we are working with....(ddnspider injection- I won't share which OEM's in the event that they don't want it made public)....
In regards to the different models we offer the LSD + Gear Set, this is a set to be used together, yes. It has been blueprinted as a set. Buyers can keep their original OEM gears or send them back for a core refund (currently for the Qs there is a $199 Core Refund). Or they can ship their Q50 diff to us, and we do the install here and ship the diff back to them paying for the LSD Conversion, gear prep labor, and shipping. We do offer that service you mention as part of the in house install, though they would have to ship the diff."
I had looked at the AMS and Z1 diff upgrades and it seems like they were pretty expensive and in some cases required a core or shipping your center section back, so I began researching alternatives. I found a post where someone confirmed that the rearend in our cars is called the "R190" which has been around for quite some time in 1 form or another. When I searched for R190 LSD, I came across a company called Traction Concepts. They've been around for quite awhile in the racing scene (auto-x, rally, drag, etc.) and sell plate style upgrade kits to convert the 1 tire fire into an LSD for $350. They are made to fit inside the existing diff and apply spring pressure to the gears to keep both wheels turning when torque is applied, but still act like an open diff when there is light throttle or tight turns like in a parking lot. Being that you use the same ring/pinion gears, you don't have to worry preload/backlash/break-in etc. Install and go! I talked at length with their engineer who actually stated how robust the R190 rearend is, particularly with this upgrade. He said he has no concerns with 500/600/700 hp. Here is the process for the tear down and pics of the installed upgrade......
12/25/20 update....4.2 0 to 60. No tune, rwd, JB4 car. This LSD upgrade is holding up great.
9/15/22- Traction Concepts contacted me with some additional info (GOOD INFO) that I'm passing along:
" While the traction performance is the same or possibly superior to other limited slip LSDs and lockers on the market, the design is completely different in the way that it is not a replacement part/diff like the higher priced options. The reason we continue to be compared to the replacement diff options on the market, is because of the results in performance and traction gains our users are getting. We welcome any of the users in your network to reach out and share their experiences with us whether good or bad. Or reach out if they need a better understanding of the product and functions of our design.....
We work alone, without gimmicky accessories, friction plates, or additives and have been in the game doing this for 27 years now perfected and the largest LSD Conversion Company in the world because we are the designers.
When the vehicle manufacturers contact us directly to offer solutions to their OEM set ups for their motorsports teams, we must be doing something right. Currently at this moment in time, we are working with....(ddnspider injection- I won't share which OEM's in the event that they don't want it made public)....
In regards to the different models we offer the LSD + Gear Set, this is a set to be used together, yes. It has been blueprinted as a set. Buyers can keep their original OEM gears or send them back for a core refund (currently for the Qs there is a $199 Core Refund). Or they can ship their Q50 diff to us, and we do the install here and ship the diff back to them paying for the LSD Conversion, gear prep labor, and shipping. We do offer that service you mention as part of the in house install, though they would have to ship the diff."