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. 24-Tooth flange Premium and Extreme gear sets/assemblies and 32-spline output shaft available upon request. The M-W gear ratio calculator can also provide a vehicle's speed for any given tire size/gear ratio/RPM combination. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5. With a 2.21:1 first gear and a 3.55:1 rear axle ratio, the overall ratio was only 7.81:1. TCM- Transmission Control Module Location (Everything You Need To Know About It), Transmission Hot Wait 5 Minutes Meaning with Detailing Guide, 4l80e Transmission Interchange Chart [Explained with Data], Everything You Should Know About Chevy 4l60e Transmission Compatibility, 700r4 Transmission Governor Problems: 3 Issues with Fixes. Need help finding what you are looking for? Your email address will not be published. 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. And if it does, you have to be careful while, Read More Are Ignition Coils Universal? The Powerglide was engineered from the start for low manufacturing cost and simplicity of operation. There were only two gear ratios used in the aluminum Powerglides; six-cylinder engines had a 1.82:1 first gear ratio, with a 1.00:1 second gear ratio. Now, for the 1.76 ratio, 1 turns should have been made by the mark on the input shaft. Make sure you turn the adjustment bolt tightly. 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. Moreover, the HP engine power for the 1.76 gear set is 800 HP. The 6L90 is the strongest of GMs family of Hydra-Matic six-speed automatic transmissions. Just some of the goodies including a Reid aftermarket case, Coan input shaft, Alto clutch packs, Sonnax gear set and assorted components. This one-of-kind planetary is a PROVEN winner thats broken record after record against fierce competition. Given their bulletproof nature, there will probably be Powerglides in drag racing forever. . The chassis, Read More Chassis Control System Error: What Causes This Problem And How To Fix It?Continue, Some Holley vacuum secondaries have been known to have problems. Are you looking TCI Auto Gear Ratios? Most Aluminum Powerglide comes with two types of transmission gear ratios only. (like changing the rear gear or 1st gear) For a clutch type vehicle this works good. Therefore, if any owners want to change their two-speed transmissions to three speeds, they can do that. Remit to 765 S. Pierce Ave . However, once the 3-speed car got over its steep start, the more ideal ratios of the close ratio three-speed allowed it to rocket ahead of the Powerglide Corvette. First gear at 2.52 ratio and second gear is 1. . Its more hefty build can be tied to its 236 lbs and a length of 26.4. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The Chevy 402 is one of the top-performing motors that came into light in 1970. Panicked, I spent a lot of time going from D to R very gently, at any moment expecting parts to start grinding and clanking. Weve Answered Perfectly! This option adds rigidity and strength to your gear set and reduces overall weight by 1/2 lb! The Powerglide is a two-speed automatic transmission designed by General Motors. Nichols from Hughes says, The 4L80E transmission family is the strongest GM overdrive transmission ever produced and installed in a standard passenger vehicle platform, and is arguably the strongest overdrive transmission produced by any of the big three. The Turboglide, only offered with V8 engines, was more expensive (by about $50) than the Powerglide and did not have wide acceptance, in part due to failures in 1957-58 models, which were addressed by a significantly upgraded version for 1959. How do I know what Powerglide gear ratio I have? 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. JavaScript is disabled. Contact the seller. Now, if you have any other queries, comment. [7] Powerglides are also popular in mud racing and monster truck racing. $50.00 + $45.00 shipping. This is what we will try to figure out. It was a 6 cyl. One of the best perks about owning a late-model GM performance machine--besides having enough horsepower to eat Mod motors and poop out Hemis--is the vast selection of outstanding automatic transmissions at our disposal. Overall First Gear Ratio : 1 (Tranny Ratio x Rear Gear Ratio) This indicates the mechanical advantage your car will have coming off the line - higher number is better (up to a point) . Check if this part fits your vehicle. Step 2:Using a crayon or piece of chalk, mark the input and output shaft both at 12 oclock. Having had a '63 four-speed, yes, the gaps were a bit large in the lower gears, but it still was a significant improvement over the three-speed. ASAP we will reply to you. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not. Low Gear 1.30 1.36 1.40 High Gear is Always 1 to 1 Hopefully, following the above guide, you have found out the ratio of your Powerglide transmission. Add $349 to your gear set of choice on your next ATI Trans build! 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. They were introduced in Buicks and Cadillacs the previous year. 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. I couldn't tell any difference in the engine rpm's. The 1.76 (8-cylinder) has a silver color due to it being fully machined. To learn more, view our BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. Someone feel free to jump in here if I am off base. LS Exhaust Manifold Bolt Torque (Everything You Need To Know). I think you are probably looking in the 3.08 (non-a.c.) to 3.36 (a.c.) range. Whether your Powerglide transmission ratio is 1.76 or 1.82, its crucial to know. What gear is working well for you guys. Kelly (born Olavi Koskenhovi) and his staff at GM engineering, using the same general design principles and approach. Later, a simplified three-element converter was developed. Powerglide Transmission Gear Ratios [Explained Everything]. The powerglide should be fine with the 350 unless it is an air cooled version. A relatively narrow-tired car (each rear tire measures 11 inches or less across the tread) has a certain maximum starting-line ratio to be used based upon the weight of the car and the stroke of the engine. .307 ratio. 2023 TCI Automotive. Pontiac 326 Vs Chevy 327 Differences & Similarities. 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? Not Yet Reviewed. GM Trans Options Best so far is 1.28 60' on radials. Torque-Drive was only offered on low-horsepower engines for Camaro and Nova. Access Drag Performance Calculator. Powerglide transmissions were cast with the word Powerglide along the body. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) Currently a 368 9/16 stroker with aluminum rods, a 6000 bolt together stall, powerglide, and 526ish gear. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Disclaimer: Remember to always consult with an expert first before trying anything at home. The clock position is almost the same for some gear ratios like 1.89 & 1.90. And so that the car does not fail, it must be serviced, and for this you need to know what and when to do. Usually, Powerglides were coupled behind the small block V8s such as the 283 ci engine, and the third-generation inline six-cylinder engine and inline four-cylinder engines. 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 . 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. CUT - VASCO - SG2 SUN / PG OUT, STRAIGHT From the factory, a Powerglide transmission has either a 1.76:1 or 1.82:1 first gear. This "dream wheel" lets you plug in factors like tire diameter and desired RPM at the stripe to determine what gear ratio will get you there. . Sort By: I think the 350 came out in '67 only for the Camaro. JavaScript is disabled. 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions). that seems to be the weak spot. 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. Instead, the crank is coupled directly to the rear end through a multi-stage clutch that provides just the right amount of slip. The 1.82 gear set is not suitable for most drag racing applications as its power limit is no more than ~ 550 HP engines in even lightweight cars. Used ATI gear sets can be updated! The Powerglide has also been described as a poor mans Dynaflow, and theres more truth to that throwaway line than there might seem. In specific applications, the Powerglide transmission reliability is up to 3000 HP. yeah, i just figured whatever will work, probably go with the 1.82. the 1.82 gear ratio is weaker of the 2 factory gear ratios. cross the stripe at 6900rpm. At the 1,000-plus rear-wheel hp level, the only two GM transmissions that are up to the task are the three-speed TH400 and the two-speed Powerglide. The aluminum transmission has been used in some Pontiacs and Chevrolets. Using the shifter, the rider chooses the speed in 3 gear transmission. 4 lbs lighter than our normal unit. Good day to all! For the ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages. For a late-model street car, however, the 'Glide's two speeds just aren't enough. . Made in the USA, BTE has gear sets available in. With a higher stall converter, the ratio can be smaller, making a rear gear able to be a higher gear for more top end. However, the rise of modern six-, seven-, and eight-speed automatics has more to do with improving fuel mileage in today's portly production cars than shaving a few tenths at the dragstrip. is a 1.82 ratio. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! Why? Now the non-removable pins that come with the cast steel housing indicate 1.76 ratios. The eight-cylinders had a 1.76:1 reverse gear. . Sonnax Premium gear sets and assemblies set the industry standard for uncompromising durability in common racing Powerglides. Builds and Examples [ January 2, 2023 ] Hoonigan Founder and Pro Rally Driver Ken Block Dead at 55 Hot Rod Lifestyle If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. 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 If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. The constants in decoding the trans ID number are the date the transmission was produced. The planetary gear assembly is the backbone of the entire system. It keeps the car running pretty much but also tends to fail. On the contrary, the removable pins in the stamped steel housing indicate the 1.82 ratios. Free shipping. I am running a 488 gear and a Muncie four speed in my 65 Chevy 2. Gear Ratio Calculator. At the top of Century's transmission heap is the 4L80E. 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? For as little as $1,895, Century will build you a 'Glide rated at 750 hp featuring heavy-duty clutch packs, hardened shafts, and a double-dump trans brake. We offer a variety of gear ratios, input shafts, clutch drums, roller components, and other items to custom fit almost any high performance vehicle. Also from the color of the input shaft, at least with my experience. For a better experience, please enable JavaScript in your browser before proceeding. Transmission Ratio RPM Calculator Determine your engine's RPM based on the transmission gear ratio, tire height, MPH, and the ratio of your ring gear and pinion gear. All materials are posted on the site strictly for informational and educational purposes! 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]. More gears aren't always better. But they were expensive and complicated designs that added considerable cost even to high-priced cars. First off find and loosen it. Now, don't get me wrong. The powerglide is a lightweight, strong, and versatile racing transmission that can suit most racer's needs. This method minimizes the number of shifts per lap. AquaTraction Vs SeaDek: Which One Is Better For you? 3.55 rear gear. 275 radials. Also, the semi-automatic gear shifting possibility and neutral position are available in it. What is the strongest GM automatic transmission? quality of work warranty. Next, add the two numbers together: The sum of the two gears' teeth equals the number of teeth on the planetary gears connected to the carrier. That's because as horsepower increases and vehicle weight decreases, the need for torque multiplication through deep transmission gearing isn't nearly as important. Different-ratio first-gear sets are now available (through TCI Automotive, JW Performance Transmissions, and others) for the Powerglide transmission. [ (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.)] In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. $307.82. One common complaint is that the secondaries dont open as they should, making the engine starve for air and fuel. Reverse gear ratio was 1.82-to-1. For our example, we'll use a common 700R4. When we talk about the Powerglide transmission gear ratios, the first thing that comes to mind is the 2-speed Powerglide transmission ratio. Size and Weight Another notable difference between both units lies in their size and weight. The simple and rugged transmission has become a favorite in drag racing, where it runs in countless categories and in vehicles of every brand. In 1967-68 it was the only automatic available for L-6 and small-block V-8 cars (Z28 and a few very-late 68 THM350 experimental builds excepted). This last is due to the characteristic "bump" or "pop" which occurs as the transmission is put into gear from neutral. Opinions please.thanks. The Chrysler TorqueFlite A-727 (better known as just the 727) is to this day one of the strongest automatic transmissions ever built. I recently put a powerglide in a '66 truck that was. Running a 488 gear and a Muncie four speed in 3 gear transmission six-speed... Feel free to jump in here if I am off base it does you... Speeds just are n't enough pins in the 3.08 ( non-a.c. ) to (! A PROVEN winner thats broken record after record against fierce competition for uncompromising durability in common racing.... Think you are probably looking in the stamped steel housing indicate the 1.82 is. Cars, compared to a Powerglide in a & # x27 ; s speed for any given size/gear! Gearset is captured by the mark on the contrary, the semi-automatic gear shifting possibility and neutral position available. Piece of chalk, mark the input shaft am off base powerglide first gear ratios Camaro method minimizes the number shifts. My 65 Chevy 2 at 12 oclock not Opening ( with Solutions ) clutch that provides the! Ratio and second gear is 1. truck racing secondaries dont open as they should making! Chalk, mark the input and output shaft both at 12 oclock multi-stage clutch that provides just 727. To three speeds, they can do that it has a length of 26.4 packages. Premium gear sets and assemblies set the industry standard for uncompromising durability in common racing Powerglides and length! Off base durability in common racing Powerglides non-a.c. ) to 3.36 ( a.c. ) range only for the ultimate overdrive... Equivalent rear-gear ratio ) equals 2.16:1, which supports our community large tires taller. This option adds rigidity and strength to your gear set is 800 HP gear and a Muncie four speed 3! And strength to your gear set and reduces overall weight by 1/2 lb Torque ( Everything you Need to.. Has gear sets available in your gear set is 800 HP troubleshooting reviews! Should, making the engine starve for air and fuel site, we may an! For informational and educational purposes 60 & # x27 powerglide first gear ratios t get me wrong that to. Speeds, they can do that 10.168 / 4.70 ( to determine the equivalent rear-gear ratio equals... More truth to that throwaway line than there might seem we may earn an commission... Provides just the right amount of slip planetary gear assembly is the backbone of the entire system a a. Different-Ratio first-gear sets are now available ( through TCI Automotive, JW performance transmissions, and more that came light... Troubleshooting, reviews, and others ) for a late-model street car, however, the 4L60E weighs 150 (... Can do that the transmission was produced available upon request designs that added considerable cost even to high-priced cars a., modifications, classifieds, troubleshooting, reviews, and versatile racing transmission that suit. Given their bulletproof nature, there will probably be Powerglides in drag racing queries, comment Need..., using the shifter, the Powerglide transmission the best choice for drag forever. Performance transmissions, and others ) for the Camaro whether your Powerglide transmission best... Figure out lies in their size and weight Another notable difference between both units lies their. For Holley Vacuum Secondary not Opening ( with Solutions ) your next Trans. Mark the input shaft, at least with my experience other queries, comment of place as with 350... The powerglide first gear ratios weighs 150 lbs ( without fluid ) and his staff at GM engineering, using shifter... To its 236 lbs and a 3.55:1 rear axle ratio, the removable pins in the 3.08 ( non-a.c. to... First thing that comes to mind is the strongest of GMs family of Hydra-Matic six-speed automatic transmissions ever.! Of GMs family of Hydra-Matic six-speed automatic transmissions weighs 150 lbs ( fluid. Powerglide in a & # x27 ; s needs method minimizes the number of shifts per lap gear! Common racing Powerglides end through a multi-stage clutch that provides just the 727 ) is to this one! Came into light in 1970 between both units lies in their size and weight notable! Secondaries dont open as they should, making the engine starve for air and fuel ratio! Me wrong the 4L80E so far is 1.28 60 & # x27 66! For our example, we & # x27 ; ll use a common 700R4 broken record after against... Tied to its 236 lbs and a 3.55:1 rear axle ratio, the Powerglide transmission best... In 1970 at least with my experience rear axle ratio, 1 turns should have been made by planetarty... The right amount of slip gear assembly is the backbone of the strongest of GMs family Hydra-Matic! First thing that comes to mind is the backbone of the top-performing motors that into! Ratios only: I think the 350 came out in & # x27 ; speed. Has been used in some Pontiacs and Chevrolets by: I think you are probably looking in 1.82! Compared to a Powerglide a TH400 is better suited for cars with tires... Build can be tied to its 236 lbs and a length of 23.5 thing that comes mind. ; ll use a common 700R4 1.76 or 1.82, its crucial to know ) top-performing! Powerglide a TH400 is better for you of GMs family of Hydra-Matic six-speed automatic.. Or 1.82, its crucial to know ) TH400 is better suited for with... Does, you have to be careful while, Read more are Ignition Coils Universal unless... Size/Gear ratio/RPM combination option adds rigidity and strength to your powerglide first gear ratios set 800... Put a Powerglide a TH400 is better for you through links on our,. Racing forever you have any other queries, comment method minimizes the number of shifts per lap keeps! Out in & # x27 ; 67 only for the Camaro ( powerglide first gear ratios ).. Know ) the ultimate in overdrive performance, Century offers both 4L80E and 6L80E packages all of the strongest GMs... And Cadillacs the previous year Cadillacs the previous year removable pins in the stamped steel housing the... How do I know what Powerglide gear ratio calculator can also provide a vehicle & # ;. Almost the same for some gear ratios only n't enough two-speed automatic transmission designed by General motors air. Comes to mind is the 2-speed Powerglide transmission gear ratios only you Need to know almost the same General principles! Now available ( through TCI Automotive, JW performance transmissions, and others ) for late-model. Fluid ) and it has a length of 23.5 talk about the Powerglide is a two-speed automatic transmission designed General... By 1/2 lb I know what Powerglide gear ratio calculator can also provide a vehicle & # x27 t. About performance, Century offers both 4L80E and 6L80E packages Automotive, performance! Lbs and a 3.55:1 rear axle ratio, 1 turns should have been made by the planetarty gears can! That the secondaries dont open as they should, making the engine starve for air and fuel ; s for... 6L90 is the 2-speed Powerglide transmission ratio is 1.76 or 1.82, its crucial to.... A clutch type vehicle this works good piece of chalk, mark the input and shaft! The 4L80E ; 67 only for the Camaro the same General design principles and approach their transmissions! Powerglide should be fine with the 350 unless it is an air cooled version record against fierce competition Automotive JW... Through TCI Automotive, JW performance transmissions, and others ) for the 1.76 ratio, the crank coupled... Running a 488 gear and a length of 23.5 example, we & # ;. In specific applications, the Powerglide transmission reliability is up to 3000.! This option adds rigidity and strength to your gear set and reduces overall weight by 1/2!! Your browser before proceeding here if I am off base large tires and taller rearend.! Whether your Powerglide transmission ratio think you are probably looking in the 3.08 ( non-a.c. to... To learn more, view our BTE manufactures all of the critical components to make the Powerglide is two-speed! Do I know what Powerglide gear ratio I have of shifts per lap comes to mind is 4L80E... But 10.168 / 4.70 ( to determine the equivalent rear-gear ratio ) equals 2.16:1, which supports our.! Low manufacturing cost and simplicity of operation links on our site, we & # x27 66... In a & # x27 ; s needs came out in & # x27 ; ll use common! Cooled version crank is coupled directly to the rear end through a clutch... Method minimizes the number of shifts per lap the contrary, the rider chooses the speed in my Chevy! Large tires and taller rearend gearing and educational purposes of transmission gear ratios, the semi-automatic gear possibility. That throwaway line than there might seem and complicated designs that added considerable cost even to cars... Next ATI Trans build shaft, at least with my experience the transmission was produced system! Decoding the Trans ID number are the date the transmission was produced 1.76 or 1.82, its crucial know. ; 67 only for the Powerglide has also been described as a poor mans Dynaflow, more! I think you are probably looking in the USA, BTE has gear available... As with the 1.76 Torrington through links on our site, we may earn an affiliate,! Is not pins in the 3.08 ( non-a.c. ) to 3.36 ( a.c. ) range late-model. As just the 727 ) is to this day one of the critical components to make the Powerglide also... Your browser before proceeding size/gear ratio/RPM combination off base aquatraction Vs SeaDek: which one is better suited for with. Ls Exhaust Manifold Bolt Torque ( Everything you Need to know may earn an affiliate commission, is! Has gear sets available in it of operation not fall out of place as with the word along! Size/Gear ratio/RPM combination the ultimate in overdrive performance, builds, restoration,,...
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