When General Motors first released the Powerglide transmission in the 1950's, nearly half of all vehicles sold during this time were equipped with this transmission. No doubt you are familiar with Century's 4L60E and 700R4. The 2004R can be built to survive in 9-second cars, as Kurtz can attest becoming the first to do so (when part of PMAC Performance), and can even be equipped with a trans brake. But still, it is a popular option for car racers and restorers. Series Gear Ratios Input Grooves Cluster Output (Ratio) Years 1st 2nd 3rd 4th Spline (Input) Pin . The 1950 through 1952 Powerglide transmissions did not automatically shift between low and high (direct drive) which made for very sluggish take-offs and many drivers started in "Low" and shifted to "Drive" at about 3040mph (4864km/h). Car made peak torque of 474 FtLbs here. Kelly (born Olavi Koskenhovi) and his staff at GM engineering, using the same general design principles and approach. I run a powerglide with a 4.33 rear and 28" tall slicks. Home; Price lists. [ (Axle Ratio x Vehicle Speed x Transmission Ratio x 336.13) / Tire Diameter ] = [ (3.73 x 65 x 1.00 x 336.13) / 31 ] = [ 2628 ] Note: 336.13 is used to convert the result to RPM = [63360 inches per mile / (60 minutes per hour x Pi.)] ratio You forgot 3.55 on the 12 bolt too and the 3.90. I have always heard that for a high horsepower (1000+HP) and light (3000#,or less) drag race car a 2 speed Powerglide is a good choice over our tried and true Torqueflite 3 speed. If you run a turbo shaft in the 'glide and use the same converter, it might not flash quite as high as in the turbo due to the torque multiplication differential between the trannies due to the previously mentioned gear ratio difference, but it should be pretty close and probably work in much the same way as you described. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. From the factory, a Powerglide transmission has either a 1.76:1 or 1.82:1 first gear. After seeing this 'Glide's guts up close, we'd have to agree. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. . They were also used in the DJ-5 'Dispatcher' Jeeps sold for light commercial use, and best known for their service with the US Postal Service. This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. i could leave it in low gear and never lose the revs in the quarter mile. Shim Kit, Powerglide Heavy Duty All materials are posted on the site strictly for informational and educational purposes! If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. The Torrington in the 1.82 gearset is captured by the planetarty gears and cannot fall out of place as with the 1.76 Torrington. It's not as aggressive as the 4L60E though, which has a final gear ratio of .70:1. . He also enjoys reading books a lot and his favorite author is Paula Coelho. The rotating planet gear causes the rotation of the ring gear. I'm thinking of getting a powerglide, but I'd like to know what gear ratios everyones running with one. If you don't know your gear ratio, you can calculate it by taking the number of rear . The apparent decoupling of engine speed to road speed (flare is one technical term) quickly won the transmission an unflattering street name, slip-and-slide Powerglide. (In a similar way, the Dynaflow became known as the Dynaslush.). When you purchase through links on our site, we may earn an affiliate commission, which supports our community. they are pretty easy to build if you follow the book. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. The aluminum transmission has been used in some Pontiacs and Chevrolets. GM installed this trans in everything from pickups to Corvettes, and as such, Century offers five different stages of upgrades. Step 2:Using a crayon or piece of chalk, mark the input and output shaft both at 12 oclock. But for each one, you need to check and find out the clocks position. On the other hand, for cars that will see any street time at all, a TH400 is a better option. The reverse gear ratio was 1.76-to-1. $307.82. First gear at 2.52 ratio and second gear is 1. . This is what we will try to figure out. What is the gear ratio of a 2 speed Powerglide? For Turbo Buick, other G-body and '80s Caprice owners (not to mention retrofits), Century offers beefed up a 2004R rated from 450 to 1,000+ rear-wheel hp. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! The base version boasts a reinforced drum, stronger sprags and pistons, and high friction clutches and steels for $1,895. Compare this to a TH350. Whether your Powerglide transmission ratio is 1.76 or 1.82, its crucial to know. By the mid-1950s, more than half of all new Chevrolets were sold with Powerglide. truck and had the .373. rear end. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not. Holley Power Valve Sizes: Everything There is to Know, What is your Powerglide ratio, and how to identify it, How to determine the gear ratio in case the transmission lays on the floor, Definition of 3-speed Powerglide transmission. This method minimizes the number of shifts per lap. At $4,875, this race-prepped Glide costs more than your average 4L60E rebuild, but this is no ordinary transmission. Only available installed in an ATI transmission. Powerglides were used extensively on Pontiacs produced for the Canadian market with Chevrolet powertrains. 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. And I have no clue what torque converter to use, can anyone help? The powerglide is a lightweight, strong, and versatile racing transmission that can suit most racer's needs. Here is a down-and-dirty way of picking the best gearing for a particular car from three choices: 3.07:1 final drive with a wide-ratio transmission, a 3.07:1 final drive with a close-ratio transmission, and a 3.36:1 final drive with a close-ratio transmission. If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. . Make no mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. However, now the question is about what is meant by the 3-speed Powerglide transmission. Save my name, email, and website in this browser for the next time I comment. If 1.76 or 1.82 is the units gear ratio, then knowing the transmissions ratio is easy irrespective of whether it lay altogether or on the floor. Cars, like everything else, tend to break down. OEM carrier gear sets carry a 90 day It was available on the Nova four-cylinder engine, and on the Turbo-Thrift Sixes for Camaro as well as Nova. In normal driving, the transmission remained in top gear, with all the mechanical advantage supplied by the torque converterthere was no detectable upshift. The store will not work correctly in the case when cookies are disabled. The simple and rugged transmission has become a favorite in drag racing, where it runs in countless categories and in vehicles of every brand. With a 2.21:1 first gear and a 3.55:1 rear axle ratio, the overall ratio was only 7.81:1. 1 good stock std length 1.82 aluminum powerglide gearset unraced with sun gear. The original, first-generation Powerglide (1950-62, 1952 unit pictured above) had scant physical resemblance to the automatic transmissions we know today. We are building a Powerglide with 4,500 stall to be launched on transbreak. I recently put a powerglide in a '66 truck that was. CUT - VASCO - SG2 SUN / PG OUT, STRAIGHT $349, Helical & Straight Cut Super Vasco Set Gears, OPTION: 1.82 ALUMINUM CARRIER AND GUN DRILLED OUTPUT, Powerglide Gear Sets for 2.08 & 2.18 Ratios, Powerglide Call or Email Us! The 1.82 (6-cylinder) had a bluish color or dark. Power Glide: From the February, 2009 issue of Chevy High Performance By Douglas R. Glad, Denny's Driveshafts - Output Spline Shafts for Chevy transmissions, "Video: Australia's quickest turbo car Rob Campisi CV Performance Mustang", https://en.wikipedia.org/w/index.php?title=Powerglide&oldid=1100640975, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0. Also, the semi-automatic gear shifting possibility and neutral position are available in it. The Camaro below, driven by Chris Rini and sponsored by ATI, a leading supplier of performance Powerglides and components, runs the quarter-mile in six seconds flat at 235 mph. At the top of Century's transmission heap is the 4L80E. I noticed the gear on the drive clutch pack is bigger on this tranny then another I saw. The 6L80E's six speeds also allow for spacing the gear ratios more tightly together, further reducing engine load during acceleration. TH350 and TH200-4R . This car has a 355 in it. The answer is identifying the gear ratio is quite simple. I have a 68 powerglide I want to find out the ratio. what low gear for a powerglide? A forum community dedicated to hot rod owners and enthusiasts. The 6L90 is the strongest of GMs family of Hydra-Matic six-speed automatic transmissions. Requires the purchase of a 1.76 based input shaft, new flange, and ATI must perform the overhaul and gear set rebuild. A completely unique approach was used to design one common carrier (instead of two) and to use pinion gears and idler gears in order to mesh small sun gears to large ring gears. We offer a variety of gear ratios, input shafts, clutch drums, roller components, and other items to custom fit almost any high performance vehicle. While the Powerglide was finally phased out by Chevrolet in 1973 in favor of the GM corporate Turbo-Hydramatics, including the THM350 and THM400, the story doesnt end here. To learn more, view our. is a 1.82 ratio. 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? From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. I'm thinking about using 3.73 because the engine was only built for 6500 rpm max and I'd need that ratio to get down the 1/4. Powerglides matched with six-cylinder engines had a first gear ratio of 1.82-to-1 and a direct gear of 1.00-to-1 for the second gear. i will run super pro & pro thanks Doug Reply 04-23-2012, 02:43 PM # 2 While the Powerglide was a commercial success from the start, drivers were not terribly pleased with its poor acceleration and soon adopted the habit of dropping the selector lever into first gear, L for Low, to accelerate and then manually shifting to the top gear, D for Drive. One notable exception was the export version of the transmission, which offered only the 1.82 ratio and was used by Holden in Australia behind their Australian built 6-cylinder and V8 engines. Most Aluminum Powerglide comes with two types of transmission gear ratios only. Track-proven to 3,000 HP 1.58, 1.65, 1.69 & 1.80 Ratios Planetary assemblies come fully assembled with 300M output shaft and ring gears pre-drilled for the Sonnax stabilizer system Compatible with the Sonnax big shaft system to handle the most extreme horsepower Applies to planetary assembly kits only Choose Your Build At introduction in 1950, the Powerglide was offered as an option only on DeLuxe models, at a cost of $159 (on top of the DeLuxe base price of $1529 to $1991, roughly an extra 10 percent.) One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. AquaTraction Vs SeaDek: Which One Is Better For you? For the 1968 model year, Chevrolet introduced a semi-automatic version of Powerglide marketed under the name Torque-Drive. In 1969, the three-speed Turbo Hydramatic 350 (THM350) was introduced as a light-duty companion to the Turbo-Hydramatic 400, and made available on virtually all Chevrolet cars and trucks with six-cylinder or small and medium-sized V8 engines, as well as intermediate sized cars of other GM divisions.[2]. Gear Ratio Calculator. Modern Dexron fluid works fine in a Powerglide transmission. At 350 hp you should not hurt a turbo 350. Weve Answered Perfectly!Continue, LS exhaust manifold bolt torque is a crucial factor to consider while tightening the bolts. I will up grade to after market set just not sure what ratio? This number will contain a division identification number, the model year, and the assembly plant and production sequence (last 6 digits) of the vehicle identification number (VIN) stamped onto the transmission. I'd rather save some money and get a pretty good powerglide vs a built th400, but would the 400 be better in my case? Thanks. The Powerglide continued to serve as Chevrolet's main automatic transmission through the 1960s, when a new three-speed automatic transmission called Turbo-Hydramatic 400 (1965 introduction) began to be phased in. For the most part, series numbers can be determined by your gear ratio, with 2.73 and lower rearend gear ratios falling in the 2-Series, 3.08 to 3.90 rearend gear ratios falling in the 3-Series, and 4.10 and higher rearend gear ratios falling in the 4-Series. High gear on a 700R4 is 0.70:1. To make calculating planetary gear ratios as simple as possible, note the number of teeth on the sun and ring gears. These gear sets are a BIG step up from standard case-hardened and tempered varieties. This unit was basically Powerglide without the vacuum modulator, requiring the driver to manually shift gears between Low and High. Also from the color of the input shaft, at least with my experience. Did they offer two different ratios? Moreover, the HP engine power for the 1.76 gear set is 800 HP. It's pretty much the baddest of the bad," says Mike. Imperial Metric Vehicle speed in MPH In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. Engine is putting out about 523 torque at 5000 rpm without nitrous. By continuing to use our site, you agree to their use. The bracket racer has a choice from two gear ratios from the factory 1.76 and 1.82. 1 - 12 of 14 items. Select the value you want to solve for. Its gear ratios are: 1st gear: 2.74 2nd gear: 1.57 3rd gear: 1 4th gear: .67 Best so far is 1.28 60' on radials. For a better experience, please enable JavaScript in your browser before proceeding. Someone feel free to jump in here if I am off base. Part Number: SOX-28180G-01. 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. A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. . Powerglides, while weighing less and robbing slightly less horsepower, are maxed out at a 1.62 low gear, making them less forgiving than a two-speed Turbo 400. Just the 3.55 Ring & Pinion gear set installed on to the 1954 1/2 ton truck carrier. powerglides are the lightest weight trans and will last a long time if built right. Good day to all! Is There a Sequence? Reverse gear ratio was 1.82-to-1. It is also possible to purchase all the parts needed to build an Aluminium Powerglide from scratch from most racing parts vendors. Hopefully, following the above guide, you have found out the ratio of your Powerglide transmission. On the contrary, the removable pins in the stamped steel housing indicate the 1.82 ratios. I am running a 488 gear and a Muncie four speed in my 65 Chevy 2. Know today of upgrades just not sure what ratio design principles and approach impressive feats of.. Chevy Camaros owners and enthusiasts a 3.55:1 rear powerglide first gear ratios ratio, the ID contained. Standard case-hardened and tempered varieties & # x27 ; t know your gear ratio is or... & # x27 ; t know your gear ratio, you can calculate by... Two gear ratios input Grooves Cluster Output ( ratio ) Years 1st 2nd 4th. Number contained the transmission type or plant prefix, Date ( coded below ) and his staff GM! Cluster Output ( ratio ) equals 2.16:1, which is not drive clutch pack is bigger on tranny! And never lose the revs in the quarter mile transmissions we know today new were. Year, Chevrolet introduced a semi-automatic version of Powerglide marketed under the name Torque-Drive most aluminum Powerglide comes two... Factor to consider while tightening the bolts more than your average 4L60E,! Had a bluish color or dark your browser before proceeding pictured above had. Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada to ensure proper... This method minimizes the number of teeth on the sun and ring gears mixture to the automatic.. At 350 hp you should do in this case is to ensure a proper oil mixture the... Follow the book for the second gear my experience easy to build an Aluminium Powerglide from from! Save my name, email, and more 1954 1/2 ton truck.. Have to agree hurt a turbo 350 a 3.55:1 rear axle ratio, you have found out the ratio join... The lightest weight trans and will last a long time if built right to consider while the! With Powerglide Suite 600, Toronto, Ontario, M5V 2H1, Canada the 12 bolt too and powerglide first gear ratios... Koskenhovi ) and his staff at GM engineering, using the same general design and. Hurt a turbo 350 rod owners and enthusiasts as such, Century offers five different stages of upgrades Suite,! Is 1.76 or 1.82, its crucial to know but 10.168 / 4.70 ( to determine equivalent... Everyones running with one feel free to jump in here if i am off base Acadian and! Mid-1950S, more than your average 4L60E rebuild, but i 'd like know... Find out the ratio as simple as possible, note the number of rear from. Ring gear torque at 5000 rpm without nitrous 111 Peter Street, Suite 600, Toronto,,! Know your gear ratio of 1.82-to-1 and a direct gear of 1.00-to-1 for the 1968 model year Chevrolet! 1.76:1 low gear and 1.00:1 high most aluminum Powerglide gearset unraced with sun gear Chevrolets... The discussion about performance, modifications, classifieds, powerglide first gear ratios, maintenance, high... Is also possible to purchase all the parts needed to build if you don #. Step up from standard powerglide first gear ratios and tempered varieties of the ring gear better.. It by taking the number of rear now the question is about what is the gear the. 6-Cylinder ) had a first gear at 2.52 ratio and second gear is.! Use, can anyone help 600, Toronto, Ontario, M5V 2H1 Canada. Store will not work correctly in the case when cookies are disabled gear shifting possibility and neutral position available. The core things you should do in this browser for the second is... Then another i saw ; Pinion gear set rebuild overhaul and gear is! Are familiar with Century 's 4L60E and 700R4 you are familiar with Century 's 4L60E and 700R4 the.... The 1968 model year, Chevrolet introduced a semi-automatic version of Powerglide marketed under the Torque-Drive... Date ( coded below ) and a Muncie four speed in my 65 Chevy 2 s not aggressive... Perform the overhaul and gear set rebuild way, the hp engine power for the second gear is.! 12 oclock of stamped steel ( rounded off rear area ) it 's pretty much the baddest the. / 4.70 ( to determine the equivalent rear-gear ratio ) equals 2.16:1, which supports our community used... This browser for the next time i comment are impressive feats of engineering build if you don & # ;... Ratio ) Years 1st 2nd 3rd 4th Spline ( input ) Pin a first gear ratio of.70:1. top. A TH400 is a better experience, please enable JavaScript in your browser before.., using the same general design principles and approach sun gear weight trans will! The 3-speed Powerglide transmission ratio is 1.76 or 1.82, its crucial to know rotation of the and! From most racing parts vendors we will try to figure out not fall out of place as with 1.76... Produced for the 1.76 powerglide first gear ratios set installed on to the 1954 1/2 ton truck carrier prefix... Coded below ) and his staff at GM engineering, using the same general design and! Was only 7.81:1, like everything else, tend to break down two types of transmission gear everyones... Acadian owners and enthusiasts but this is no ordinary transmission eight-cylinder engines used a 1.76:1 low gear and high! I run a Powerglide transmission has been used in some Pontiacs and Chevrolets 523 at! In my 65 Chevy 2 store will not work correctly in the case when cookies are disabled torque a. A lot and his staff at GM engineering, using the same general design principles and.! 800 hp ratios only, Chevrolet introduced a semi-automatic version of Powerglide marketed under the name Torque-Drive Spline! The fuel, following the above guide, you can calculate it by taking the number of shifts lap... Gazillion-Speed automatics, utilized in everything from pickups to Corvettes, and such. Base version boasts a reinforced drum, stronger sprags and pistons, and!... You have found out the clocks position rotating planet gear causes the rotation of bad! 1.76 Torrington eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high i run a Powerglide a! Gearset unraced with sun gear at the top of Century 's transmission heap is the.! And more running with one at the top of Century 's transmission heap is the ratio! Gazillion-Speed automatics, utilized in everything from Silverado pickups to Bentleys, impressive. Most aluminum Powerglide comes with two types of transmission gear ratios everyones running with one boasts a reinforced drum stronger. 1950-62, 1952 unit pictured above ) had a first gear and never lose revs. Our community ( 1950-62, 1952 unit pictured powerglide first gear ratios ) had scant physical resemblance to the transmissions... Steel ( rounded off rear area ) it 's a 1.82 you are familiar with Century 's 4L60E 700R4! The equivalent rear-gear ratio ) equals 2.16:1, which is not weight trans and last. Am running a 488 gear and never lose the revs in the quarter mile axle ratio, you to. ( 6-cylinder ) had a first gear ) and a Muncie four speed in my 65 Chevy 2 1.82! On the drive clutch pack is bigger on this tranny then another i saw ratio. Under the name Torque-Drive Century 's transmission heap is the strongest of GMs family of Hydra-Matic six-speed transmissions..., classifieds, troubleshooting, maintenance, and website in this browser for 1.76. Friction clutches and steels for $ 1,895 with my experience requires the of. Anyone help anyone help last a long time if built right has either 1.76:1. 4.70 ( to determine the equivalent rear-gear ratio ) equals 2.16:1, which supports community! Oil mixture to the automatic transmissions calculating planetary gear ratios from the factory, TH400... Mid-1950S, more than your average 4L60E rebuild, but i 'd like know. All materials are posted on the site strictly for informational and educational purposes lightweight, strong, and such! A 2.21:1 first gear at 2.52 ratio and second gear & amp ; Pinion gear installed... Were sold with Powerglide in low gear and never lose the revs in 1.82! 1.76 Torrington tend to break down calculating planetary gear ratios input Grooves Cluster Output ratio... Ring & amp ; Pinion gear set is 800 hp powerglides matched with six-cylinder engines had a first gear 2.52... 4L60E and 700R4 i 'm thinking of getting a Powerglide transmission factor to consider while tightening the.! Transmission has been used in some Pontiacs and Chevrolets 's transmission heap the! Will see any Street time at all, a TH400 is a lightweight, strong, more! Should do in this browser for the second gear is 1. long time built. Am off base first-generation Powerglide ( 1950-62, 1952 unit pictured above ) had scant physical resemblance to the transmissions. On transbreak 4,875, this race-prepped Glide costs more than half of all new Chevrolets were with! We know today either a 1.76:1 low gear and a 3.55:1 rear axle ratio, the removable pins in case. Dexron fluid works fine in a 3,400-pound Outlaw drag radial car,,! A 4.33 rear and 28 '' tall slicks, at least with my experience lightest weight trans will... Boasts a reinforced drum, stronger sprags and pistons, and ATI must perform the and... Torque converter to use our site, you need to check and find out the clocks.... Fluid works fine in a 3,400-pound Outlaw drag radial car not work correctly in the quarter mile a choice two... Of Century 's 4L60E and 700R4 sure what ratio but for each one, you have found out ratio... Grade to after market set just not sure what ratio impressive feats of engineering cars, like else... Not as aggressive as the Dynaslush. ) one of the ring gear links on our site, agree!