gear ratio and tire height ?'s
#1
Launching!
Thread Starter
gear ratio and tire height ?'s
ok its kind of a calculation question but i figured id get some more opinions. lets say i have a 275 width drag radial on a stock fbody wheel thats 28 inches tall. with a rear gear ratio of 3.73.
would that be too much tire to make a full 1/4 mile pass and go through the traps at the top of 3rd in a 4l60e(5800-6000) with say a bolt on car with nitrous. or should i go to a 27in or 26in tall tire. im tryn to get away with goin out the back door at just the right spot. and i wanna get the tire choice down on the first try. im just not wanting to run out of gear on the bottle at the big end
would that be too much tire to make a full 1/4 mile pass and go through the traps at the top of 3rd in a 4l60e(5800-6000) with say a bolt on car with nitrous. or should i go to a 27in or 26in tall tire. im tryn to get away with goin out the back door at just the right spot. and i wanna get the tire choice down on the first try. im just not wanting to run out of gear on the bottle at the big end
#2
Here is my excel spreadsheet calcs
Tire Height, Rear Gear, 4L60E 3rd Gear, 5800 RPM, 5800 RPM, 6000 RPM
28" Tire OD, 3.73:1, 1.0:1, 129.5 MPH, 131.8 MPH, 134.0 MPH
27" Tire OD, 3.73:1, 1.0:1, 124.9 MPH, 127.1 MPH, 129.2 MPH
26" Tire OD, 3.73:1, 1.0:1, 120.3 MPH, 122.3 MPH, 124.4 MPH
Tire Height, Rear Gear, 4L60E 3rd Gear, 5800 RPM, 5800 RPM, 6000 RPM
28" Tire OD, 3.73:1, 1.0:1, 129.5 MPH, 131.8 MPH, 134.0 MPH
27" Tire OD, 3.73:1, 1.0:1, 124.9 MPH, 127.1 MPH, 129.2 MPH
26" Tire OD, 3.73:1, 1.0:1, 120.3 MPH, 122.3 MPH, 124.4 MPH
#3
Launching!
Thread Starter
so a 28in tire would give me the most wiggle room on the big end? i figure right now it might be a 120 car if its lucky on 100 shot and idk what it would do after it gets a stall and the pills get upped.
what would be the suggestion for a 4l60e fbody with a 3.73 gear, stock suspension, and a 100 shot out of the hole? its been 109-110 n/a
what would be the suggestion for a 4l60e fbody with a 3.73 gear, stock suspension, and a 100 shot out of the hole? its been 109-110 n/a
#4
Personally, I like to have room to grow so I would go with the 28" but I think I am in the minority on that one... Most people like to cross the line at the top of 3rd, auto, and 4th manual.
#5
Launching!
Thread Starter
i want to go through the traps at the top of 3rd but i dont wanna screw myself when i up the pills or something and have 5 passes on 26's and then need 28s when i do something else. itll be a mostly street raced car so i suppose i may go with the 28's. i know ill have to roll the fenders but can you fit a 275 28in tire on a stock fbody 16 or should i just buy some summit stars or something