I'm really happy to see eXcelerate and CRC adopt this model. This really should be the model all RC companies adopt going forward instead of frustrating their consumer base by bundling all of their running changes into a new model every year or two instead of allowing the consumers the option to purchase the upgraded or new optional parts at reasonable prices.

The new bump stops are a must and should be used with the bump stop extenders. We've been testing different versions of them for about six weeks. The change is in the amount of material on these new stops - taller and a little wider. These hold the center of the car up better, while also providing more suspension movement. The car on track will still be its normal aggressive cornering monster that it is, but it is more forgiving. If you've experienced being on rails in practice by yourself, but then got into the race in a tight battle with a bit more adrenaline flowing, you turn in harder than normal or less smooth, the car would jump out or turn in differently. With more bump stop movement, the car handles about the same, but there is a more smooth transition between on rails and oops, I didn't get that corner right.

Which ones? It depends on what you need the car to do. Think of these as the new version of the old center shock. Their job is to hold the center of the car at ride height and be the for/aft spring. The side springs also help with this, but can be moved up a bit to do less of the for/aft work and act more like side springs. Use soft-black for more rear grip. Use med-clear for less rear grip, more forward bite. I didn't get to try the low rebound, but think about these like running a shock with heavy oil and a lighter spring. They are going to stay compressed longer, slowing transitions between throttle and braking. Should calm the car down and may be good for the F1.

these new bumpstops look cool, and pique my interest in running this car on outdoor asphalt. The issue is rear ride height -- with no washers its tough to get even to 5mm on exotek tires. I guess short of excelerate coming out with new rear motor mount, i'm sol right?

For the Excelerate powers that be, I would like to second this comment. Memphis runs outdoors on asphalt and also rumor of a ribbon track being built by the Thunderdome crew has me planning on outdoors with this chassis, also.

The 1/12th rear blocks will bolt on. They will shorten the wheel base a little, but will solve the ride height issue in the rear.

Hamilton in for the win!

The new orange bump stops look a lot like D3O foam... If it is, that's interesting since it's a non-newtonian material that stiffens with hard impacts. Would probably act a bit like progressive damping. I'll definitely try all 3 new ones.

Martin Paradis

Non-newtonian was definitely my thought as well :confused:

oooh. smart. i will try that.

I did it on the WGTR when the car was first introduced. My older CRC tires turned out to be smaller diameter than the newer ones Josh had measured from. We couldn't figure out why my car sat so low, until we... duh.. measured the tires.

https://cimg0.ibsrv.net/gimg/www.rct...cff4695d9.jpeg
https://cimg2.ibsrv.net/gimg/www.rct...ccff46ea7.jpeg

https://cimg2.ibsrv.net/gimg/www.rct...5fef340150.jpg
I was able to put the pair of the bulkheads into a manual milling machine and mill down .030" (just over .75mm) off the top which allowed the axle tube to be mounted lower which in turn raised the rear ride height up as I struggled to make 5mm on my wgtr

that's a good idea too. Don't have a milling machine and I like all my fingers. :)

The work has already started on the Thunderdome outdoor track It's happening.

Alright, boys. I'm going to throw this out there. It may be listed somewhere else in the forum and if it is, I apologize for the redundancy. I need someone to explain to me, preferably in small words and crayons, what the difference is in the kingpin and steering block degrees and why someone would choose one vs the other. Remember; small words and crayons type description.

I’m probably wrong, but the higher the number the less aggressive the front end is. Probably.