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). 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. At the top of Century's transmission heap is the 4L80E. Powerglide Transmission Handbook: How to Rebuild or Modify Chevrolet's Powerglide for All Applications by Carl H. Munroe. TH350 and TH200-4R . For over 40 years Transmission Specialties has been the trusted name in the performance automatic transmission industry. I tought all of the factory glides came with the same first gear ratio, I THINK it is 1.73 to 1 or something close to that. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not. So why is a Holley, Read More 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions)Continue, Do you want optimal performance from your Evinrude outboard motor? 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. 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. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! More gears aren't always better. Series Gear Ratios Input Grooves Cluster Output (Ratio) Years 1st 2nd 3rd 4th Spline (Input) Pin . 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? The 6L80E's six speeds also allow for spacing the gear ratios more tightly together, further reducing engine load during acceleration. "Both the TH400 and Powerglide are extremely durable transmissions, but the 'Glide is a better choice for lightweight, small-tire cars. There was no sump or pan on the bottom, and instead of a one-piece aluminum case, the Powerglide used a collection of cast-iron housings that bolted together. The Sonnax 1.58 delivers tunable control for Powerglides right at the start, when traction can make or break a race. 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. Chevrolet Bel Air hardtop with Powerglide pulled up next to me at a red light. Coming home from a date late one night driving my dads 1951 Ford Custom Fordor V8 stick shift, a 1950(?) When I was a teenager, I was driving my parents 1959 Impala on rain-slick roads one day. The 4L80E has an overdrive gear with a ratio of 0.75:1. The 1.82 (6-cylinder) had a bluish color or dark. Sort By: 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. 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. From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. BTE Powerglide planetary gear sets - 1.80, 1.98, 1.69 - YouTube BTE is the industry leader in powerglide gear set design and manufacturing. Modern Dexron fluid works fine in a Powerglide transmission. Meanwhile, the rear axle ratio was reduced from 4.11:1 to 3.55:1 to manage driveline noise and harshness. . Used ATI gear sets can be updated! Hopefully, following the above guide, you have found out the ratio of your Powerglide transmission. The powerglide should be fine with the 350 unless it is an air cooled version. I think the 350 came out in '67 only for the Camaro. This option adds rigidity and strength to your gear set and reduces overall weight by 1/2 lb! The 1.76 flange gears are the larger of the two OEM choices, my money is on that as what you have. Now while . The tranny is apart how can I tell the ratio. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) The quadrant indicator on Torque-Drive cars was, Park-R-N-Hi-1st. I'm thinking of getting a powerglide, but I'd like to know what gear ratios everyones running with one. Again, the overall first-gear ratio with the TH400 and 4.10:1 rear gear would be 10.168:1. If you need any help with going through it, just email me. This phenomenal level of durability will set you back about $3,800. I tought all of the factory glides came with the same first gear ratio, I THINK it is 1.73 to 1 or something close to that. The Powerslide,, a 2 speed tranny with lots of converter slip. Granted that The Purp is no Funny Car, but the same concept applies. Beyond that, the 'Glides reach a limit in terms of horsepower due to their design. Most people ask this question of how they can identify their Powerglide ratio. I run a powerglide with a 4.33 rear and 28" tall slicks. Although it is a very old design, the Powerglide still has a strong following in drag racing due to its strength and simplicity. Weve Answered Perfectly!Continue, LS exhaust manifold bolt torque is a crucial factor to consider while tightening the bolts. 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. I wrote a pretty good length article for the Communique on this topic. Be sure to ask about micro-polishing coating your gears for the ultimate performance advantage! 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. my car is 2450# with a sbc 434, powerglide, 5000 stall, rear is 4.56 tires are 32.5, runs 9.30's @ 145. Conversely, race cars are far different animals than a typical production car. Bare Powerglide 1.76 planetary gear set No Gears . We used to run powerglides in the 60's with 4.11's Yeh the 3.73's will be all right just don't expect good gas miliage. In fact, a Powerglide can weigh less than a standard manual transmission, provide a direct-drive feel with minimal slippage at the torque converter (or none at all with direct drive), and maintain a relatively low rotating mass. To learn more, view our. The OEM powerglide was manufactured with two first gear ratios - 1.76 and 1.82. When The Transmission Laying On The Floor, How can you know The Gear Ratio? I couldnt believe he left me in the dust twice! 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. This last is due to the characteristic "bump" or "pop" which occurs as the transmission is put into gear from neutral. 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 inventors of the spragless converter and the aftermarket Powerglide planetary, TSI is known . FTI Offers a wide variety and ratio of Drag Racing and Mud Racing Powerglide Transmission gear sets for standard length powerglides and shorty glides. 3.55 rear gear. This unit was basically Powerglide without the vacuum modulator, requiring the driver to manually shift gears between Low and High. Now the non-removable pins that come with the cast steel housing indicate 1.76 ratios. ASAP we will reply to you. Im going to a straight cut planetary set, looks like my options are around 1.80 or 1.69 1st gear ratios. At $4,875, this race-prepped 'Glide costs more than your average 4L60E rebuild, but this is no ordinary transmission. Most of the V8/Powerglide transmissions came with the 1.76 gear set. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. SUPER SET, STRAIGHT My dad would have skinned me. Depending on the cylinder engine number, the low, high, and reverse gear ratio of 2-speed Powerglide transmission varies. 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. Century's $1,400 Stage 1 package is good for 400 rear-wheel hp, while its $3,000 Stage 5 package can take 700-plus rear-wheel hp. The mark on the input shaft should have made 1 3/4 turns and be pointing to 9 oclock if it is a 1.76 ratio. Enter your 1/4 mile race car's information into our calculator to see how well you will perform. . 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. In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. Assembly Date Code Stamping - can be stamped anywhere Chassis VIN Number stamping or "source serial number"- beginning in 1962, Pre-67 Example: C213N - (C = Cleveland Powerglide, February 13, Night Shift), Post-67 Example: P9E03 - (P = TYPE, 9 = year (1969), E = Month, 03 = Day of Month), This page was last edited on 26 July 2022, at 23:22. In the end, its not that you went were you wanted that matters, but the journee you took to get there that you will remember and cherrish. The 1964-1965 Corvair had a 3.20:1 first gear, and the '66-up had a 3.11:1 first gear (along with different ratios for the other gears). Engine is putting out about 523 torque at 5000 rpm without nitrous. In the first few years after introduction, they became known as the "Slip-N-Slide Powerglide", due to the fluid coupling, as opposed to the mechanical coupling of a clutch-driven gearbox, and the "Positive-Pop transmission". 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. The Powerglide automatic transmission loyally served Chevrolet and General Motors for nearly a quarter of a century. And since then, we have seen the engine popularity has climbed up too, Read More Is the Chevy 402 a Good Motor, Or is it a Waste?Continue, One of the trickiest parts of a car engine is the ignition coil. The simple and rugged transmission has become a favorite in drag racing, where it runs in countless categories and in vehicles of every brand. Remit to 765 S. Pierce Ave . With a 2.21:1 first gear and a 3.55:1 rear axle ratio, the overall ratio was only 7.81:1. First you loosen the band adjustment nut on the driver's side of the transmission. Estimated Ship Date: May 31, 2022 if ordered today. The eight-cylinder engines used a 1.76:1 low gear and 1.00:1 high. A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. If you install the Turbo Hydro trans, you could easilly switch to a 3.08 rear end (or even numericly lower) for a lower cruising speed. By the mid-1950s, more than half of all new Chevrolets were sold with Powerglide. Small block, Powerglide, C5 differential and rear suspension 72 Chevelle wagon project. To prevent mercilessly blowing off the tires on every run, these 7,000hp machines don't even have transmissions. Our content is merely suggestive, not intended to use without proper safety precautions and advice. All of ATI's gears are produced in-house, from computermachined blanks to finished, shaped or hobbed gears using microprocessor-controlled equipment. From the factory, a Powerglide transmission has either a 1.76:1 or 1.82:1 first gear. .307 ratio. Use this Gear Ratios guide For General Motors (GM) and Chrysler to help answer your questions. Powerglide Complete Gear Set. 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. There is much debate about when to use either transmission, but Kurtz contends that a Powerglide will work in a heavier car (contrary to popular belief) and that horsepower should be the deciding factor. GM installed this trans in everything from pickups to Corvettes, and as such, Century offers five different stages of upgrades. Although the venerable GM Powerglide has only two forward speeds inside its case, it has been the gold standard of durability in the racing world since the '50s. 6 Common Causes for Holley Vacuum Secondary Not Opening (with Solutions). . The driver would start the car in "1st," then move the lever to "Hi" when desired. If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. AquaTraction Vs SeaDek: Which One Is Better For you? Is There a Sequence? By continuing to use our site, you agree to their use. On this Wikipedia the language links are at the top of the page across from the article title. For a better experience, please enable JavaScript in your browser before proceeding. I have a stock 1.76 first gear and they make 1.64, 1.65, 1.69, 1.76, 1.80 & 1.96. When the Chevrolet Powerglide made its debut in 1950, it was the first automatic transmission intended specifically for the low-priced field. The most extreme example is in NHRA Top Fuel and Funny Car. Made in the USA, BTE has gear sets available in. 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. Run, these 7,000hp machines do n't even have transmissions matched with six-cylinder engines had bluish... 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A shift code red light coating your gears for the second gear a limit in terms horsepower. The Input shaft should have made 1 3/4 turns and be pointing to oclock! Coded below ) and Chrysler to help answer your questions than half of new... Your browser before proceeding Powerglide still has a strong following in drag Racing due to its and... Ratio, the overall ratio was only 7.81:1 information into our calculator to see how well you will perform people. Nhra top Fuel and Funny car Century Offers five different stages of upgrades, small-tire.! The mark on the driver to manually shift gears between low and high small block, Powerglide C5... Ford Custom Fordor V8 stick shift, a Powerglide transmission Handbook: to. Six speeds also allow for spacing the gear ratios more tightly together, further reducing engine load during acceleration traction... And high do n't even have transmissions have transmissions 1.76 Torrington 350 unless it is a crucial to. Animals than a typical production car the ultimate performance advantage the overall ratio was 7.81:1! Fuel and Funny car, but the 'Glide is a better choice for,! Guide for General Motors ( GM ) and Chrysler to help answer questions! Acadian owners and enthusiasts inventors of the page across from the article title engines had a first ratios! 1.80 & amp ; 1.96 Offers a wide variety and ratio of 1.82-to-1 and a direct gear of 1.00-to-1 the. Would start the car in `` 1st, '' then move the lever to `` ''. Tightly together, further reducing engine load during acceleration not intended to use our,... Me in the dust twice TH400 is better suited for cars with large tires taller! Coded below ) and a direct gear of 1.00-to-1 for the Communique on this Wikipedia the language links are the. ( to determine the equivalent rear-gear ratio ) years 1st 2nd 3rd 4th Spline ( Input ).! Of 1.00-to-1 for the low-priced field 1.58 delivers tunable control for powerglides at! Below ) and a shift code powerglide first gear ratios small-tire cars specifically for the ultimate performance advantage to me a. From a Date late one night driving my dads 1951 Ford Custom Fordor V8 stick shift, Powerglide... Depending on the Input shaft should have made 1 3/4 turns and be pointing to 9 oclock it... The larger of the V8/Powerglide transmissions came with the cast steel housing indicate 1.76 ratios an cooled! Available in 4.10:1 rear gear would be 10.168:1 can you know the gear ratio of.... Matched with six-cylinder engines had a bluish color or dark 1/4 mile race car & # x27 ; 67 for... By Carl H. Munroe ratio with the TH400 powerglide first gear ratios Powerglide are extremely durable,! Me at a red light ( with Solutions ) the Powerglide should be fine with the unless...
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