GM Trans Options It's pretty much the baddest of the bad," says Mike. TH350 and TH200-4R . While some might think that an increase in the number of forward gear ratios represents progress on the technological front, that's not the entire story. But very much a poor mans tranny in comparison to the 3 speed Turbo 350/400. Be sure to ask about micro-polishing coating your gears for the ultimate performance advantage! I threw the shifter upright into R and locked up the rear wheels. [ January 23, 2023 ] Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory Roadkill Powersports [ January 19, 2023 ] Planning for the 2023 Hot Rod Power Tour Car Shows & Events [ January 6, 2023 ] Rusty but Rare 1976 Chevy K10 Sport Truck Revival! You can purchase one (p/n CAL) online for $3.00. The 1.82 (6-cylinder) had a bluish color or dark. Make no mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering. The gear ratios used for this transmission were 2.52 for 1st gear . Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! . Save my name, email, and website in this browser for the next time I comment. When we talk about the Powerglide transmission gear ratios, the first thing that comes to mind is the 2-speed Powerglide transmission ratio. The earlier sequence had been criticized on safety grounds for placing reverse after a forward gear, instead of having neutral between reverse and the forward ranges. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Remit to 765 S. Pierce Ave . For V-8 models, the automatic had a 1.76-to-1 first gear and 1.00-to-1 second gear ratio. Powerglides also weigh 30-40 pounds less than a TH400, and take less power to turn, which means more horsepower makes it to the rear wheels," explains Mike Kurtz of Century Transmission. Powerglide (OEM) 1.82: 1.00: N/A: N/A: Powerglide (TCI) 1.65: 1.00: N/A: N/A: Powerglide (TCI) 1.80: 1.00: N/A: N/A: Powerglide (TCI) 1.92: 1.00: N/A: N . What is interesting the 1954 Chevy 1/2 ton truck Manual and Hydra-Matic transmissions both have a 3.90 gear set, Whereas the 1951 Chevy car Manual and Powerglide transmissions have a 4.11 gear set for the Manual trans and a 3.55 gear set for the Powerglide trans. Given their bulletproof nature, there will probably be Powerglides in drag racing forever. This allows getting a heavy mass off the line without lugging the motor as much, as well as tightening up the torque converter stall speed, both of which improve gas mileage. For the ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages. In these types of applications, a Powerglide is the ultimate in consistency as well. Modern Dexron fluid works fine in a Powerglide transmission. Given the final axle ratio of 3.08:1 in each car, the overall ratio drops to 2.156:1. Thanks. Its bulletproof, simple and easy to customize, he says. $307.82. "This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. Imperial Metric Vehicle speed in MPH Note:To check the aftermarket ratios, you can use this procedure. quality of work warranty. If you believe that the posting of any material infringes your copyright, be sure to contact us through the contact form and your material will be removed! The first gear ratio will be different between the two transmissions but the final gear ratio may be the same. There were only two gear ratios used in the aluminum Powerglides; four- and six-cylinder engines had a 1.82:1 low gear with a 1.00:1 high; reverse gear was 1.82:1. So when we had to decide on a transmission for our '95 Camaro drag car--and its projected 1,000-plus rear-wheel hp and 8-second e.t. TH350 High Performance Transmissions / 850 Hp Full Race; TH400 High Performance Transmissions / Stage II - Stage VI . The starting-line ratio is a combination of the first-gear transmission ratio multiplied by the rear-end gear ratio. Nonetheless, with nothing more than Alto clutch packs, billet shafts, reinforced hubs, and a retuned trans controller, Century's $3,300 6L80E is sturdy enough for most C6s and trucks that came with the 6-speed. Registered. Limited quantities - available while supplies last. Hotrodding is much more than just owning a hotrodIt is a state of mind! I noticed the gear on the drive clutch pack is bigger on this tranny then another I saw. This is not a pretty sight if it occurs and it will eat up the gears. they are pretty easy to build if you follow the book. Much like the small-block Chevy V8, the Powerglide has been completely re-engineered for racing use, and you can assemble an entire transmission using upgraded aftermarket parts, from the case to the oil pan. The tranny is apart how can I tell the ratio. To learn more, view our
truck and had the .373. rear end. I'm thinking of getting a powerglide, but I'd like to know what gear ratios everyones running with one. When I was a teenager, I was driving my parents 1959 Impala on rain-slick roads one day. The rotating planet gear causes the rotation of the ring gear. With a 2.21:1 first gear and a 3.55:1 rear axle ratio, the overall ratio was only 7.81:1. There were only two gear ratios used in the aluminum Powerglides; four- and six-cylinder engines had a 1.82:1 low gear with a 1.00:1 high; reverse gear was 1.82:1. These gear sets are a BIG step up from standard case-hardened and tempered varieties. Gear Ratio Calculator. 3.65 first. JavaScript is disabled. If unit has an aftermarket gear, it normally will be marked on the main housing or on the very end of the output shaft. Best so far is 1.28 60' on radials. One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. ring gear to the reverse pressure plate is totally What gear is working well for you guys. I am thinking about going to 28" tall slicks under the car. As demand increased for higher numerical first gear ratios with closer splits, the all new close ratio series was designed. Many Powerglides share the same length, 27 spline output shaft, and transmission mounting as the THM 350; thus, the transmissions are easily interchangeable for owners wanting three speeds instead of two. It's not as aggressive as the 4L60E though, which has a final gear ratio of .70:1. . Size and Weight Another notable difference between both units lies in their size and weight. In some instances, having a First gear ratio that's too low will simply send the tires up in smoke. ratio You forgot 3.55 on the 12 bolt too and the 3.90. The Sonnax 1.58 delivers tunable control for Powerglides right at the start, when traction can make or break a race. The aluminum transmission has been used in some Pontiacs and Chevrolets. [7] Powerglides are also popular in mud racing and monster truck racing. On this Wikipedia the language links are at the top of the page across from the article title. For our example, we'll use a common 700R4. And this gear set features heavier-duty gears and a machined steel carrier. Picture Information . Duck for cover! The constants in decoding the trans ID number are the date the transmission was produced. In 1950 the Powerglide transmission started with a cast iron case, and it was a 2-speed automatic transmission. When The Transmission Laying On The Floor, How can you know The Gear Ratio? The Powerglide is a two-speed automatic transmission designed by General Motors.. Most of the V8/Powerglide transmissions came with the 1.76 gear set. Its simple and robust design has led drag racing enthusiasts to work with it, giving the Powerglide an effective service life of nearly five decades past its intended obsolescence. I couldnt believe he left me in the dust twice! By continuing to use our site, you agree to their use. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. Check if this part fits your vehicle. This is what we will try to figure out. TH375, TH350, Powerglide, TH200-4R, TH700-R4, and Muncie M21 all have the same 27-spline output shaft. Are Ignition Coils Universal? that seems to be the weak spot. Our content is merely suggestive, not intended to use without proper safety precautions and advice. We offer a variety of gear ratios, input shafts, clutch drums, roller components, and other items to custom fit almost any high performance vehicle. But since the powerglides have such a low first gear with only 3.73 rear ratio, would it just suck to be running this setup, or would it be alright? CUT - VASCO - SG2 SUN / PG OUT, STRAIGHT No slow! I'm not. In an era when six-, seven-, and eight-speed automatic transmissions are becoming commonplace, it won't be long before planetary assemblies start spontaneously dropping out of the sky. BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. This is a problem when converting the '54 rear ends to 3.55:1 using the ring and pinion sets available from Patrick's. A friend of mine even went to the trouble of locating an earlier ('47-'53) carrier to do his swap, but he lucked out and his existing '54 carrier was the right type for the ring and pinion changeover. All materials are posted on the site strictly for informational and educational purposes! The common reason behind this error is battery, wire, and connection problems which can be solved with a little fixing and replacement. Granted that The Purp is no Funny Car, but the same concept applies. Popular Transmission Ratios More Gear and Axle Guides: BTW the car ran a 12.40 @ 120 MPH on Nitto Drag radials with a 2.7 60' time. Its more hefty build can be tied to its 236 lbs and a length of 26.4. In fact, the earliest Chevrolet technical literature often referred to the unit as a torque converter transmission rather than the more simple and familiar automatic. The original 1950 design employed a five-element, bolt-together converter that provided a torque multiplication factor of 2.20:1. A two-speed planetary gearset with a first-gear ratio of 1.82:1 was included, but it was originally intended only for hills and suchlike. This car is set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front end etc. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The Powerglide lingered on as a low-cost automatic transmission option primarily for the six-cylinder Chevrolet Nova and four-cylinder Chevrolet Vega until it was phased out after the 1973 model year, replaced by the Turbo Hydramatic 250. But since the powerglides have such a low first gear with only 3.73 rear ratio, would it just suck to be running this setup, or would it be alright? Powerglide Transmission Handbook: How to Rebuild or Modify Chevrolet's Powerglide for All Applications by Carl H. Munroe. While the phase-in began in 1969, it was not complete until the 1973 when the Powerglide fully phased out. Currently Robert Campisi from Australia holds the World Record for the fastest run using a Powerglide transmission, clocking 5.95s at 260mph in his Twin Turbo Ford Mustang in September 2011.[8]. In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. I could scarcely believe that transmission still worked at all, let alone that there was no damage. Pretty easy to build if you follow the book a Powerglide is ultimate. Set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front etc. About the Powerglide transmission gear ratios everyones running with one it & # x27 ; ll a. About performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more to,. Can make or break a race number are the date the transmission Laying on site. 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