350 ci v8
2007-12-10 06:44:46 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Chevrolet
i dont have a nova but im going to get one and i dont know much about final gear ratios and i want to have more perception on them? if i ran a 4.11 would that give me faster acceleration and lower top speed?
2007-12-10 06:54:20 · update #1
You need to choose a gear ratio that will put the rpm's at or around the engines peak horsepower through the traps, whether that's 1/8 mile or 1/4 mile. It's a fine line, you don't want to over-rev the motor, but you also don't want to leave horsepower on the table by not turning it enough rpm. There are several variables that go into choosing the right ratio but the main factors that you need to look at are peak engine rpm, transmission gearing, and especially tire size. For example if you had a 4.10 gear with a 28" diameter tire and switched to 32" diameter tires, the gear ratio would drop all the way down to 3.55, or visa versa. Your best bet is to figure out what size tire you're going to run, transmission, approx. peak rpm, etc. and call the Richmond Gear tech guys.
2007-12-10 08:20:06 · answer #1 · answered by Anonymous · 1⤊ 1⤋
From an article in 2005: The gear rule implemented in 2005 by NASCAR restricting teams to a single, mandated gear at every race track with the exception of Daytona (Fla.) and Talladega (Ala.) - the two restrictor plate tracks on the Nextel Cup schedule - has changed the racing model at Pocono. Gone are the days when teams were forced to out-think each other on transmission and rear end gear ratios so they could achieve maximum horsepower by having their engines turn maximum rpms. The single rear end gear available for Sunday's Pocono 500 is a 3.89-inch gear, a far cry from the 4.22-inch gear teams used to employ. I believe some leeway is allowed in transmission gearing as different ratios are still needed for weather and temperature changes.
2016-05-22 21:33:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
This also depends on the length of the track we have an 1/8 mile,1/4 mile and an 1000 ft track all within 60 miles drive from my house, race on all of them but I use a 9-inch ford rear end and change third members depending on the track,using 31 inch sportsman's I use a 4.56 on 1/8 and 1000 ft,but drop back to 3.89 on 1/4 mile it just makes better more consistent passes with this gear. But on 1/4 track the old standard is the 4.10 or 4.11 gear it has been a favorite of drag racers for decades.
2007-12-13 12:05:19 · answer #3 · answered by Big Daddy D 3 · 0⤊ 1⤋
Gear choice has a lot to do with horsepower and other factors. If you plan on driving the car on the street at all a 4:11 would be about the biggest gear I'd use. A taller gear does reduce top speed.
2007-12-10 07:31:02 · answer #4 · answered by Jay 7 · 0⤊ 1⤋
most real racers run between 4.88 and 5.36 gears with a spool... this is race only
3.90 and 4.11 is a good street & strip gear
these gears will give you the fastest acceleration..
of course tire size will come into the equation
2007-12-10 06:51:29 · answer #5 · answered by Anonymous · 1⤊ 1⤋
depends on the motors level of mods. and the streetability of the car you want. 3.73 -4.11 is common for the avg set up. the 4.11 is a little hard for most users on the street.
2007-12-10 06:53:57 · answer #6 · answered by jgonzos6 4 · 1⤊ 0⤋
Need more info than that. What's the final drive gear ratio on your tranny? What horsepower are you talking about? What tire diameter are you running? And possibly most important, what rear differential are you running?
2007-12-10 06:49:40 · answer #7 · answered by Ray 2 · 0⤊ 2⤋
well, it depends on your trans, but 3.90 and 4.11 are common...
yes: 4.11 means for every 4.11 turns of the drive axle, the wheels turn once..this is a pretty aggressive ratio, and not fuel efficient at all...
2007-12-10 06:48:13 · answer #8 · answered by Anonymous · 0⤊ 1⤋