Bump springs

[MasterSbilt_Racer]

Why did they make it so that you can't cushion the LR through either the rod or the birdcage assembly? Is it a possibile safety issue or what is it? Scared of trying new things? If we're talking unfair advantage this piece would cost maybe 200 to make at home lol.

Its part of the current idiocy of the sport. I used a shock and bumpstop for my top link in 2015 with a chain parallel to it for preventing extension. The cushion seemed to help a bit.

[Punisher88]

Coleman racing products builds a piece that works great for that. Works really nicely and has a travel indicator made onto it.

[Punisher88]

Part #24640. I replaced their bushings with a hard bumostop. I could tell a difference in forward. It would actually bog the motor a bit. I also slotted the shaft and out a pin in it to keep it from over extending.

[billetbirdcage]

OUTLAWED!

[MBR Performance]

Depends on where you race lol.

[Matt49]

I've been saying for years that our left rears are too stiff on the bars the way they are and that dampening the top bar could be helpful (see Penske device above). This is why the "heavy" LR components (steel wheels, lead on the axle, etc.) are in trend. They are compensating for the lack of critical dampening when the car is barred up by making unsprung weight. It's a crutch for a crutch. I digress...

[Brian Gray]

We have been hiding these springs inside the shock for quite some time now. Nothing new

[Punisher88]

OUTLAWED!

Although this would most definitely work better with being more adjustable and tunable... I didn't have that kind if cash. I made mine for around 200 bucks.

[MasterSbilt_Racer]

We have been hiding these springs inside the shock for quite some time now. Nothing new

But that just works like the bump stop limiter.

[Brian Gray]

But that just works like the bump stop limiter.

Yes and no. Most of the new bodies I am using have an adjuster to raise and lower engagement, there is also a bump rubber on the shaft as well. The important part though is we also added a contact spacer that increases rebound preload on the stack at engagement. Working pretty well too. Been moving on from this though to work more on my dual piston setup .

[racer2e]

This makes it displacement dependant? So the last bit of rebound travel has more dampening?

[sidewinder69]

so if this top rod collapses any, then your birdcage should roll forward then shortening your lr shock center measurment.... so then you have increased your spring load if your spring was already into the coilover nut, and if you go pass the tipping point of too much load on the lr, you pick the weight up off the right rear and cause it to loose traction.

[MasterSbilt_Racer]

so if this top rod collapses any, then your birdcage should roll forward then shortening your lr shock center measurment.... so then you have increased your spring load if your spring was already into the coilover nut, and if you go pass the tipping point of too much load on the lr, you pick the weight up off the right rear and cause it to loose traction.

That is a possible scenario. Not necessarily a likely one. Depending on a bunch of variables.

[sidewinder69]

Ill say I've got a couple penske rods and moved all over the place... It definitely isnt a magic wand like people thinks.

[MasterSbilt_Racer]

Ill say I've got a couple penske rods and moved all over the place... It definitely isnt a magic wand like people thinks.

I agree it is no magic wand.