Skid set backs

[kinger]

How far can you set a 121" Zx2 back? Is there any geometry changes or anything to worry about? Thinking about a 136 or even a 144 upgrade for next year and wondering if I can set the skid back and get that or do I need the $300 zx-tend kit. I know of people doing this with a expert x and others but not sure how far you can go and not screw anything up. Thanks!

 

[ahicks]

Nothing to back me up here, so just guessing. I might be tempted to move a 121 back far enough to go 128"? Past that, and I'd be pretty concerned about the unsupported area of the track coming off the drivers, prior to reaching the skid? Hit a rut/bank just right there may stuff a rail through a hole in the track. Anti stab kit a must at the very least.... FWIW

 

[SPEED]

I run a 121 x-pert x in my 136 attak set back 7.5 inches run 136 track on turboe,d sled. The front does become heavy but the approach angle is drastically reduced.
You can go over to the turbo /supercharger side and look at video otis rx posted of the shoot-out ,it is the white attak with black hood. I do have the extra wheels on the front