Just happened to do a long, go fast, run with 3 FJs and a couple of Raptors from Yucca Valley to Laughlin on dirt (and a totally awesome custom Willys truck on x-beam with mustang power unit).Anyone running 2.5s with resis in front and rear have any feedback on desert running? Want to know what kinds of speeds your achieving with just those upgrades over stock.
Spoiler, Raptors are stupid fast. If you want to go fast desert, get a Raptor.
We had fun, Raptors would zoom ahead and wait for us. One FJ w/stock suspension, one Icons no resis, one with Kings w/resis.
Without naming names the stock suspension did some slamming and cut two tires in the front. I was sweeping the rear, 30 secs behind, no resis Icons with some fading and the front were so hot you couldn't keep your hand on them. The Kings w/resis were hot, but you could hold them and no fading issues reported.
This was after hours of solid desert running, I'm surprised my Icons didn't blow a leak.
One of the trucks overheated it's transmission and went into limp mode.
As far as top speeds there are too many variables, width of trail, tire tread, obstacles on surface, boldness/ignorance...
The greatest difference is how hard and long you can go until fading sets in, resis will go much further if your moving for longer runs. Usually I don't push so hard on trails and have no issues. FJs have a short wheel base which is no friend of speed, and if your about speed, cage it.
When guys talk about 80MPH+ speeds with no cage it's embarrassing (that Willys was caged-just 2WD awesome).