SRT Hellcat Forum banner
  • Hey Everyone! Vote for the Site Favourite HOTM winner for the year of 2022 HERE!


3009 Views 9 Replies 6 Participants Last post by  18demon
A friend recently blew the rear end on his Demon at launch at the local1/8 mile strip. So as to try to protect against the same experience, I recently purchased and installed a $550 Per4mance DIRS 2-piece differential brace on my Demon. Tracked the car the other day, hooked well and ran a 6.5, 108 mph, 1.4 60ft on my first pass, being near the best I've run with my no-mod Demon on M&H slicks. Second, third and fourth passes developed progressively worse wheel hop. Looking under the car at the track it doesn't appear anything broke. Curious to know if anyone with a Demon has had similar wheel hop issues after installing the DIRS brace? Might be time for some fresh rears, but I don't know if that might be the cause starting and just between such few passes and after a good first run. Thanks.
1 - 2 of 10 Posts
Did you install their Race Brace that goes on the front of the Diff with the Diff Brace? I’m assuming you used the latest P4D brace? The front brace helped with wheel hop for me, keeps the front of the Diff from bobbing up and down.
Yes, I installed the latest version, the 2-piece unit that included the front portion that bolts on to brace.
The Race Brace is another part, mounts with the front Diff bolts, it’s like a strap that holds the front of the Diff up and keeps it from oscillating up and down further helping to prevent wheel hop.
Per4mance Development Billet Race Brace for 2015-newer V8 Chargers/Challengers/300 RWD
See less See more
  • Like
Reactions: 4
1 - 2 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.