Originally Posted by DJG24
Can someone please help with RCGT rollout? I cant seem to find it no matter how I search for it. I know all the tires are 65mm and everyone is using a 17.5 so a final rollout would be helpful.
This isn't a paint question, but here goes. Since tire diameter doesn't change, it's easier to use FDR (final drive ratio) as your gearing target. You need FDR to calculate rollout anyway.
But since you asked, RCGT FDRs would be somewhere between 3.6 and 4.5 (that's pretty broad). At 3.63, rollout would be 56.23; at 4.06 it would be 50.31; at 4.45 it's 45.87.
A nifty iPhone app called "GearIt" can calculate all this for you. Just pick your car model, put in the spur and pinion values, enter the tire size and it calculates FDR and rollout. That's how I got the above numbers.
Just FYI, my Novak SSpro (LRP Sphere, no fan) runs very hot at 4 and under. It's happy around 4.15.