street tire launch at a sticky drag strip

[spdbrake]

One of my to-do list of things on my car...
Since I have a very early Serial# and questionable age and source of components when built.
Even if was a new suspension during the build the bushings are all soft rubber for a family sedan.
Personally I won't go so far as needle bearings or Beryllium Copper bushings since I'm not a racer.
BMW E36 Performance Suspension Components
Active Autowerke E36 BMW Differential Support Bracket (DSB) - $265.00 | Active Autowerke

So whats happening when the hop occurs take a look at this 2015 Mustang video. The principles are the same.
The fore-aft motion of the wheel causes the breakaway. But the other areas (Diff) are all over the place as well.
[ame]https://www.youtube.com/watch?v=91kQSQ8NHME[/ame]

IRS cars typically suck at the strip.

[tamanaco]

spdbrake...thanks for the links. I have found that the CC forum folks to be helpful.

Yep, I know IRS car suck for launches in 1/4 mile stuff.

I see the BackDraft Boys have solid mount for the subframe and the third member.... http://www.backdraftparts.com/produc...-bushings.html

Turner Motor sports has solid on the diff ears, delrin on the nose... https://www.turnermotorsport.com/p-3...36-m3/?pdk=AgE I like that configuration.

[lovehamr]

Originally Posted by tamanaco

I see the BackDraft Boys have solid mount for the subframe and the third member.... Backdraft Parts - Solid Sub frame bushings - Rear Suspension - Suspension - Products

I used them in both of my big block cars, used sticky road race rubber and never had a problem. The car would just squat and launch. So yes, if you still have all the rubber in your rear suspension, I would get rid of it when I fixed whatever broke. I used these as well: http://www.backdraftparts.com/produc...mountings.html

[tamanaco]

Lovehamr...what do you use on the trailing arms...solid, delrin or urethane?