The 3.73:1 gear (leaving the tire size the same) slowed the e.t. I can even remember running time-trials four cars wide. With a wealth of overdrive transmission conversion options, it's never been easier to build a quick drag or track car that can also be fun to drive on the street.

dba Summit Racing Equipment | Trademarks. One way to improve this without having to completely change over to an overdrive automatic might be a Gear Vendors overdrive bolted to the back of our TH400.

Jeff Smith Editor. This chart shows you the cruise rpm at 60 miles per hour based on gear ratio and tire height. When I first started drag racing 60-foot clocks did not exist. To keep this discussion about gear ratios and not about torque converters, we'll ignore slippage. We simulated that tire change situation of a 26- versus a 28-inch tall tire using a taller 3.55:1 (versus a 4.10:1 gear) and the car lost barely 0.07-second running 10.30s at 130 mph but cleared the lights with the taller tire at 5,800 rpm instead of 6,700. Input an rpm into a pinion gear that spins a larger diameter ring gear and the resultant motion reduces output speed but multiplies torque. Willow Springs is the longest at 2.5 total miles with a front straight that is roughly 2,000 feet in length, over 3/8ths of a mile. The overall First gear ratio with the TH400 and 4.10:1 rear gear would be 2.48 x 4.10 = 10.168:1. This modular design gives your Jeep a custom look able to conquer any terrain. We've come a long way from the days of the lowly Powerglide. When I first started drag racing 60-foot clocks did not exist. Mwilson Veteran Member. This gear ratio and tire diameter chart is meant to give you an approximation of ideal RPMs at highway speed (65 mph) for three situations: fuel economy, every day driving and increased towing power.

Of course, the Gear Vendors can also be used behind a manual transmission.

If we divide a higher gear (like Third) by the lower gear (Second), we can see the change in rpm expressed as a percentage. See all 14 photos. Now let's take our theoretical 6.0L Chevelle with its aforementioned 4.10:1 gears and put it on the street with a set of 28-inch tall street tires, but we want to know our highway cruise rpm. (*excluding holidays). The receiver hitch kit from Rugged Ridge offers a sturdy attachment point for the rear of your Jeep which makes towing your toys a breeze. Super Clean 73  Chevy Luv Drag/Prostreet Package, Jesel’s New Steel Sportsman Rockers Part 1, 50 Engine Compartment Detailing Tips Part 4, Our Favorites from SEMA Battle of the Builders Showcase, Today’s Cool Car Find is this 2015 Corvette C6 with NASCAR Cup Engine for \$39,900, Mitzi’s Pinup Corner: Miss Presley Chevelle. The previous record of 1,846 […], Copyright © 2020 | MH Magazine WordPress Theme by MH Themes, Mud Tires – MUD TIRES or MT are as you might have gathered from the name, designed to perform most specifically in the mud. Rugged Ridge's Tire Carrier maintains full mobility of the rear tailgate and eliminates the cumbersome two-stage opening process present in other designs for easy use. On a TKO-600 five-speed for example, Second gear is 1.89:1 and Third is 1.28:1. Building a Jeep Wrangler JL Rubicon, 18th Annual All Breeds PA Jeep Show at the York Fairgrounds, York PA, Installation: Mopar Tailgate Table for 18-19 Jeep Wrangler JL, Installing Rusty’s Front Track Bar Mount Brace on a JL Wrangler, 5 great, inexpensive upgrades for your Jeep JK, Good Fuel Economy but less power, good for flat highway driving, Best Overall Performance, good for daily driving, Highest for Power and Towing but reduced fuel economy, higher engine RPM, While I never had the need to lift the front of the Jeep with a Hi-Lift, I think doing so…, Are the D-rings far enough forward from the bumper that they can be used at a jack point for a…, Thanks for explaining that you want a tow strap and some basic tools as a minimum for offroading. And here's a formula that you can use to calculate your vehicle's rear axle gear ratio: