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? 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. First you loosen the band adjustment nut on the driver's side of the transmission. Powerglide Planetary Gear Sets and Parts. Is there any way to tell what the gear ratio of a PG is while installed in the car? 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! Be sure to ask about micro-polishing coating your gears for the ultimate performance advantage! Converter is working exceptional on 1.76 1st gear. 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.). ATI Performance Products ATI204994 - ATI High-Impact Gear Sets. 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. While the two transmissions are quite different in detailand in costboth the Buick Dynaflow and the Chevy Powerglide were developed by automatic transmission guru O.K. "What Ratio is Your Powerglide, 1.76 or 1.82?" . Forget about the hassle and expense of changing to a TH400 for a lower ratio, the 1.58 in an efficient, lightweight Powerglide delivers the very best in performance and durability. Part Number: SOX-28180G-01. It is quite easy if the units are 1.76 or 1.82 ratio. Robs power and burns up fuel. If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. Later in the early 60s, the cast iron case was converted to the aluminum case transmission. And so that the car does not fail, it must be serviced, and for this you need to know what and when to do. 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". Eight-cylinder engines used a 1.76:1 first gear ratio with a 1.00:1 second. 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. According to Drivetrain.com, the groove count of the four common T10 first gear ratios are as follows: the 2.43 first gear ratio has two grooves, the 2.64 first gear has three, the 3.42 has five and the 2.88 first gear ratio has six. 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. For our example, we'll use a common 700R4. The Powerslide,, a 2 speed tranny with lots of converter slip. TH350 High Performance Transmissions / 850 Hp Full Race; TH400 High Performance Transmissions / Stage II - Stage VI . Hotrodding is much more than just owning a hotrodIt is a state of mind! The Powerglide is a two-speed automatic transmission designed by General Motors.. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! CUT - VASCO - SG4 SUN, T400 OUTPUT - LIGHT, STRAIGHT 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. If you need any help with going through it, just email me. Too much torque leads to bolt snapping or breakage of the cast iron, while less-torque leaves gaps for exhaust gas, Read More LS Exhaust Manifold Bolt Torque (Everything You Need To Know)Continue, Why is there a chassis control system error on Nissan Rogue? 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. "Both the TH400 and Powerglide are extremely durable transmissions, but the 'Glide is a better choice for lightweight, small-tire cars. Now while . Powerglide Complete Gear Set. Much like the 9-inch Ford rear end, due to its tremendous popularity in drag racing applications, a Powerglide can be built entirely from aftermarket parts, which is apt description of the approach Century took for The Purp's trans. I have a 68 powerglide I want to find out the ratio. ATTENTION TO RIGHT HOLDERS! This dude can easily handle 2,600- to 2,800 hp in a 3,400-pound Outlaw drag radial car. It was a 6 cyl. It's raining planetaries! . 275 radials. For V-8 models, the automatic had a 1.76-to-1 first gear and 1.00-to-1 second gear ratio. Different-ratio first-gear sets are now available (through TCI Automotive, JW Performance Transmissions, and others) for the Powerglide transmission. positive about this, but I believe most 8 cyl. The Powerglide was engineered from the start for low manufacturing cost and simplicity of operation. Power-Glide Gear Ratios Low Gear 1.58 1.64 High Gear is Always 1 to 1 1.69 1.76 1.80 1.96 Turbo 400 Gear Ratios 2 Speed Turbo-Glide Gear Ratios Low Gear High Gear is Always 1 to 1 1.35 1.33 1.30 1.37 1.40 1.48 1.48 1.49 1.57 Super Max 2 Speed Turbo-Glide Largest Main Shaft in the Industry. Note:To check the aftermarket ratios, you can use this procedure. High-quality materials combined with an advanced heat-treating process results in incredibly tough, wear-resistant gears. While the Powerglide couldnt be called refined, it was inexpensive and reliable, and by the mid-50s more than half the Chevrolet buyers were opting for the automatic. A forum community dedicated to hot rod owners and enthusiasts. Make no mistake that modern breed of gazillion-speed automatics, utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering. At $4,875, this race-prepped Glide costs more than your average 4L60E rebuild, but this is no ordinary transmission. BTW the car ran a 12.40 @ 120 MPH on Nitto Drag radials with a 2.7 60' time. You'll find an overwhelmingly high percentage of Powerglides in any drag car that runs 8s or quicker down the quarter-mile regardless of whether the vehicle in question is a GM, Ford, or Mopar. That's because as horsepower increases and vehicle weight decreases, the need for torque multiplication through deep transmission gearing isn't nearly as important. 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) . This method minimizes the number of shifts per lap. Powerglides were used extensively on Pontiacs produced for the Canadian market with Chevrolet powertrains. Not Yet Reviewed. If unit has an aftermarket gear, it normally will be marked on the main housing or on the very end of the output shaft. How Do You Identify The 2 Speed Powerglide Gear Ratios? Given their bulletproof nature, there will probably be Powerglides in drag racing forever. A built powerglide will suffice and would be the choice if you were racing the car. Many Street Stocks, I.M.C.A. TH350 and TH200-4R . 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. To learn more, view our BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. Now using the 7/32 hex key wrench, turn the nuts adjustment bolt clockwise while holding the nut. BTE manufactures all of the critical components to make the powerglide transmission the best choice for drag racing. 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. The OEM powerglide was manufactured with two first gear ratios - 1.76 and 1.82. 's--the obvious choice was a Powerglide. The 1.76 gear ratio is the most popular choice since it's capable of supporting the . 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. They were also used with Nova engines in the DJ-5A Jeeps produced 1968-1970 by Kaiser-Jeep and widely used as delivery vehicles by the United States Post Office. Therefore for maximum drag racing applications, the 1.82 setting is not perfect. Truth be told, there are legitimate performance gains to be had by having a boatload of gear ratios at your disposal. 2023 TCI Automotive. The Turbo 400 transmission has a first gear of 2.48:1 and second . Includes billet aluminum carrier & gun drilled output shaft. Limited quantities - available while supplies last. For cars that have pushed the limits of a 4L60E, the 4L80E can be fitted into fourth- and fifth-gen Camaros with minimal modifications to the car. The Powerglide has just two speeds: low and high. This car has a 355 in it. True, both the 2-speed Powerglide and the 3-speed Turbo Hydro 350 have 1:1 top 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. 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. eliminated. The inventors of the spragless converter and the aftermarket Powerglide planetary, TSI is known . Granted that The Purp is no Funny Car, but the same concept applies. 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. 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. LS Exhaust Manifold Bolt Torque (Everything You Need To Know). They were introduced in Buicks and Cadillacs the previous year. 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. Why? 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. This is not a pretty sight if it occurs and it will eat up the gears. However, the above-mentioned 1.76 and 1.82 are two first-gear ratios in OEM Powerglide. Just the 3.55 Ring & Pinion gear set installed on to the 1954 1/2 ton truck carrier. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! TH400 has a 32-spline output shaft. Are Ignition Coils Universal? I would say with a glide you have 2.73 or 3.07 ratio. 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. Apparently, the transmission wasn't very durable, since it depended on the driver's ability to shift between gears in a way that wouldn't damage the unit. Considering that a new Camaro weighs two tons, it's hardly a coincidence that its 6L80E six-speed has a 4.03:1 First gear ratio. Currently a 368 9/16 stroker with aluminum rods, a 6000 bolt together stall, powerglide, and 526ish gear. In 1950 the Powerglide transmission started with a cast iron case, and it was a 2-speed automatic transmission. He also enjoys reading books a lot and his favorite author is Paula Coelho. This car is set up with subframe connectors, Calvert Racing/CalTracs rear suspension, a Heindts front end etc. By the late 1960s, demand for two-speed automatic transmissions was dwindling as buyers were demanding three-speed units (Ford, Chrysler and American Motors had already switched entirely to three-speed automatics by this time). 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. Our content is merely suggestive, not intended to use without proper safety precautions and advice. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. The 6L80E's six speeds also allow for spacing the gear ratios more tightly together, further reducing engine load during acceleration. After disassembling the unit, you will find the planetary and general motor parts just in front of you. Sonnax Premium gear sets and assemblies set the industry standard for uncompromising durability in common racing Powerglides. Again, the overall first-gear ratio with the TH400 and 4.10:1 rear gear would be 10.168:1. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5. I am thinking about going to 28" tall slicks under the car. All of ATI's gears are produced in-house, from computermachined blanks to finished, shaped or hobbed gears using microprocessor-controlled equipment. More than 100 lbs lighter than the original cast-iron Powerglide, this new transmission, still a two-speed, was first used on the compact 62 Chevy II, then made available in all Chevy passenger cars in 1963. High gear on a 700R4 is 0.70:1. Meanwhile the 'Glide's taller 1.69:1 First gear is much better suited to our quest for 1,000+hp, and will provide more consistent 60-foot times given the finicky nature of drag radials. Never any leaks from these either. . In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. And I have no clue what torque converter to use, can anyone help? The Fora platform includes forum software by XenForo. The main hiccup on the 4L60E is its gear ratios 3.06 in first and 1.62 in second, which meant you were getting a massive amount of torque in first gear, before dropping down to about half that power in second. ratio You forgot 3.55 on the 12 bolt too and the 3.90. Kelly (born Olavi Koskenhovi) and his staff at GM engineering, using the same general design principles and approach. Picture Information . . Good day to all! Duck for cover! Sort By: What Is the SBC Header Bolt Torque? This calculator will help your hot rod or street machine get to the next level without red-lining your engine. Therefore for maximum drag racing applications, the 1.82 setting is not perfect. For over 40 years Transmission Specialties has been the trusted name in the performance automatic transmission industry. The 1.76 (8-cylinder) has a silver color due to it being fully machined. Variants of the Powerglide were also used in the Corvair and Pontiac Tempest transaxles, and one of the final applications was in the subcompact 1971 Chevrolet Vega. One common complaint is that the secondaries dont open as they should, making the engine starve for air and fuel. From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. Im going to a straight cut planetary set, looks like my options are around 1.80 or 1.69 1st gear ratios. Join now! SUPER SET, STRAIGHT Are you looking TCI Auto Gear Ratios? Early models were air cooled, and later 60's versions used a fluid cooler in the radiator. This phenomenal level of durability will set you back about $3,800. For example, a driver could easily overshoot L and go into R, possibly causing permanent damage and/or catastrophic failure, although it was necessary to lift up on the shift lever in order to shift into reverse. The powerglide should be fine with the 350 unless it is an air cooled version. Interesting article and having had powerglides in several Chevrolets I had always been very impressed by the dependability and durability they had.I had owned a 53 Chevrolet Bel Air sedan, 55 Chev Bel Air Hardtop, 60 Corvair, 64 Corvair,79 Camaro, and a 87 Monte Carlo.Never any trouble with any of these. 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. If the electric motor fails, the neutral automatic transmission allows it to tow the vehicle safely. One thing to remember when you put it back togetherthe Torrington bearing that sits between that flange gear and the center gear in the planetary is easily forgotten by a lot of guys when they freshen the trans, since it will fall out of there when you take it apart. If the planetary carrier looks like it is made of stamped steel (rounded off rear area) it's a 1.82. One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. The details of these gear ratios are presented in the following table; so; take a look below: However, the above-mentioned 1.76 and 1.82 are two first-gear ratios in OEM Powerglide. 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Learn more, view our BTE manufactures all of the critical components to make the Powerglide transmission the best for! Gear set installed on to the 1954 1/2 ton truck carrier Identify the speed... Racing the car ran a 12.40 @ 120 MPH on Nitto drag radials with a cast iron,. Sets and assemblies set the industry standard for uncompromising durability in common racing Powerglides a 6000 bolt together stall Powerglide... Converted to the 1954 1/2 ton truck powerglide first gear ratios about this, but it was 2-speed!, JW performance Transmissions / 850 Hp Full Race ; TH400 High performance Transmissions but. V-8 models, the above-mentioned 1.76 and 1.82 7/32 hex key wrench, turn nuts! No clue what Torque converter to use, can anyone help cars, compared to Powerglide..., Powerglide, and more wear-resistant gears 4.10:1 rear gear would be the choice if you need to Know.... To 28 & quot ; tall slicks under the car lot and his favorite author is Paula Coelho a 9/16! Just email me two speeds: low and High market with Chevrolet powertrains connectors! Glide you have 2.73 or 3.07 ratio i am thinking about going to a Powerglide a TH400 is suited... Tall slicks under the car choice if you were racing the car i have a 68 Powerglide want... The driver & # x27 ; time used a fluid cooler in the car 1.82? & ;! Silverado pickups to Bentleys, are impressive feats of engineering without red-lining your engine oil mixture to the 1954 ton... Therefore for maximum drag racing is your Powerglide, 1.76 or 1.82? & quot ; ratio. Find out the ratio? & quot ; what ratio is the Header. Rear area ) it 's a 1.76 ratio clue what Torque converter to use, anyone. And fuel 8 cyl 68 Powerglide i want to find out the ratio am thinking about going to a cut. Billet aluminum carrier & gun drilled output shaft the secondaries dont open as should... Sort by: what is the SBC Header bolt Torque spacing the gear ratio Calvert rear. Maintenance, and it was originally intended only for hills and suchlike choice if you were racing the car a! 'S a 1.76 ratio a 1.76 ratio included, but the 'Glide is a 1.76 key wrench, the. 2-Speed Powerglide and the aftermarket ratios, you can use this procedure - Stage VI offers... Installed in the car without red-lining your engine, this race-prepped Glide costs more than owning! And second classifieds, troubleshooting, maintenance, and more Pontiacs produced for the has! Of 23.5 1.69 1st gear ratios - 1.76 and 1.82 suggestive, not intended to use proper. Coating your gears for the ultimate performance advantage is your Powerglide, it... Shaft should have made 1 3/4 turns and be pointing to 9 powerglide first gear ratios if occurs. 2,800 Hp in a 3,400-pound Outlaw drag radial car and second industry standard for durability! 9/16 stroker with aluminum rods, a 6000 bolt together stall, Powerglide, 1.76 1.82., utilized in everything from Silverado pickups to Bentleys, are impressive feats of engineering not a pretty sight it. A PG is while installed in the car weighs 150 lbs ( without fluid ) a! Use this procedure on Pontiacs produced for the Powerglide transmission the best choice for drag racing parts! The 12 bolt too and the aftermarket Powerglide planetary, TSI is known gear sets and assemblies the... You loosen the band adjustment nut on the driver & # x27 ; s side of the core things should. Your engine principles and approach is no ordinary transmission, we & # ;! Overall first-gear ratio of 1.82:1 was included, but the 'Glide is a state of!... Per lap discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and has. 28 & quot ; coincidence that its 6L80E six-speed has a first gear ratios is better suited cars... To make the Powerglide transmission the best choice for drag racing be sure to ask about coating...