If you like sliding or drifting around, the 20x10x10 will do it much better. Everywhere else a 22x11x8 will out perform. For paddle number, I would call Sandtoyz and talk to John. He's helped me out a bunch of times. For my wifes 4mill, both she and I prefer a 20" tire.
For an 8" wheel you want 21" tire. But the question is what you do with the bike. Hill climbing and playing around you have the better tire already. If you drag race a lot then you want the 8" rim tire.
Are the 20x10x10 working good now? Rollout is just the circumference of the tire. just wrap a tape measure around it Sent from my SM-A505U using Tapatalk
There’s a whole lot of stuff that comes into play when trying to achieve this ideal and some is good and some is not so good. Yes, the psi is very important roll. You would also have to install some kind of fuel pressure regulator because If there’s to much psi then your taking a chance of either blowing up your carbs and turning your banshee into a rolling fireball or the pump would dump unused fuel into the engine at lower rpm’s which would cause the unused fuel to either hydro lock the engine or it would wash the crankshaft bearings out. You would have to almost design something like a EFI system which would have to work off of an ECM which would have to control the timing of spark and fuel pulse.
If I was trying to achieve something like this I would experiment with a windshield washer fluid pump at first to see if the pump would work with gasoline and how long it would continue to work. You would have to design or hook up a secondary fuel on /off switch. If the windshield washer fluid pump would work I would see if it would work off of the lighting system on the banshee where if you are just riding around you don’t used it and while under on the track using high rpm’s you could just flip the headlight switch on and it would pump extra fuel to the carbs.
It’s just a real touchy situation trying to achieve this goal. It’s a trial and error type of thing.
Just my $0.02
some may disagree or agree but i would say take 2500 put it on the side and hope there is $ leftover. you will need new shifting components,true and weld crank with new berrings, bore and hone cylinders considering there not .60 0r .80 over. cause if they are that far gone sell and get a fresh set so you have good amount of life left in the motor. you can go broke trying to save money on these motors trust me .