powerglide first gear ratios
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. [7] Powerglides are also popular in mud racing and monster truck racing. 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 don't remember which is which, but someone will chime in with that soon. This car has a 355 in it. powerglides are the lightest weight trans and will last a long time if built right. Note:To check the aftermarket ratios, you can use this procedure. This compares to the Powerglide Corvette's 13.56:1 overall launch ratio. But as stated you will need to axle code 2-3 letter suffix code or you can open the rear and check the pinion head it will also have the ratio stamped into it by listing the ring tooth count and the pinion tooth count and part number of the pinion gear plus the date usually. 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. Our content is merely suggestive, not intended to use without proper safety precautions and advice. The 1.82 gear ratio or gear sets power limit is up to 550 HP engines. For the best experience on our site, be sure to turn on Javascript in your browser. 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.) Is the Chevy 402 a Good Motor, Or is it a Waste? 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.). The Powerglide is a two-speed automatic transmission designed by General Motors.. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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? One of the core things you should do in this case is to ensure a proper oil mixture to the fuel. [ 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! 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. 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. 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? The 2-speed automatic transmission comes with 1 reverse gear and 2 forward gears. This transmission is a 3 speed, and no overdrive gear was available. Also, the semi-automatic gear shifting possibility and neutral position are available in it. Low Gear Sets. JavaScript is disabled. What is the strongest GM automatic transmission? Chassis Control System Error: What Causes This Problem And How To Fix It? 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? ring gear to the reverse pressure plate is totally The constants in decoding the trans ID number are the date the transmission was produced. Is There a Sequence? 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. JavaScript seems to be disabled in your browser. In race cars, compared to a Powerglide a TH400 is better suited for cars with large tires and taller rearend gearing. 's--the obvious choice was a Powerglide. Limited quantities - available while supplies last. Gear ratios include 1.58, 1.68, 1.76, 1.90, 1.94, 1.98, 2.08, 2.18 Vasco gear sets. On the other hand, the stronger gear ratio is 1.76. The planetary gear assembly is the backbone of the entire system. Imperial Metric Vehicle speed in MPH Just as the Turboglide was eliminated, GM brought out a redesigned second-generation Powerglide for 62 (above) that combined the key features of the Powerglide and Turboglide, including a modern, pressure-cast aluminum housing and a sealed torque converter. To learn more, view our Chevrolet Bel Air hardtop with Powerglide pulled up next to me at a red light. 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. 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. I am thinking about going to 28" tall slicks under the car. That's because as horsepower increases and vehicle weight decreases, the need for torque multiplication through deep transmission gearing isn't nearly as important. These gear sets are a BIG step up from standard case-hardened and tempered varieties. A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. First gear at 2.52 ratio and second gear is 1. . What is the gear ratio of a 2 speed Powerglide? I couldnt believe he left me in the dust twice! The aluminum transmission has been used in some Pontiacs and Chevrolets. Therefore for maximum drag racing applications, the 1.82 setting is not perfect. originally a 3-speed. Duck for cover! Engine is putting out about 523 torque at 5000 rpm without nitrous. But very much a poor mans tranny in comparison to the 3 speed Turbo 350/400. The OEM powerglide was manufactured with two first gear ratios - 1.76 and 1.82. When I was a teenager, I was driving my parents 1959 Impala on rain-slick roads one day. All materials are posted on the site strictly for informational and educational purposes! A chrome badge on the deck lid proudly proclaimed POWER GLIDE, and to compensate for the lack of torque multiplication, Powerglide cars got a slightly larger six-cylinder engine (235 vs. 216.5 cubic inches) with hydraulic valve lifters and 105 hp rather than the standard 90 hp. Its 2.74 First gear makes it a great overal transmission. Sonnax high performance products meet the toughest challenges faced by hard-working, daily-use drivetrains as well as racing units going all-out on the street or track. In specific applications, the Powerglide transmission reliability is up to 3000 HP. 275 radials. For a better experience, please enable JavaScript in your browser before proceeding. Fearing the damage and wear that could result from this practice, GM engineers in 1953 provided an automated first-gear start and programmed upshift at up to 42 mph depending on load, and a throttle-controlled kick-down function as well. 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. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5. Pontiac 326 Vs Chevy 327 Differences & Similarities. $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 As a result, the unit was quite heavy at better than 240 lbs, and there were a number of gasketed joints with the potential for fluid leaks. JavaScript is disabled. Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set. Never any leaks from these either. Eight-cylinder engines used a 1.76:1 first gear ratio with a 1.00:1 second. And this gear set features heavier-duty gears and a machined steel carrier. The Powerslide,, a 2 speed tranny with lots of converter slip. The input shafts are different lengths also. Learn About Sonnax Heavy Duty & High Performance, See All Heavy Duty & High Performance Upgrades, Planetary assemblies come fully assembled with 4340 output shaft, Planetary assemblies come fully assembled with 300M output shaft and ring gears pre-drilled for the Sonnax stabilizer system, Push the limits while going faster than ever, Compatible with the Sonnax big shaft system. Why? The aluminum Powerglide started in the early 1960s. Thanks. 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. they are pretty easy to build if you follow the book. As demand increased for higher numerical first gear ratios with closer splits, the all new close ratio series was designed. 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. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! To see what it takes to build a nearly indestructible 'Glide, we paid a visit to Century Transmission in Richmond, Texas as they put The Purp's trans together. Enter your 1/4 mile race car's information into our calculator to see how well you will perform. 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. . Apr 4, 2004. I think you are probably looking in the 3.08 (non-a.c.) to 3.36 (a.c.) range. 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. Gear Ratio Calculator. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! Select the value you want to solve for. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. This is what we will try to figure out. Requires the purchase of a 1.76 based input shaft, new flange, and ATI must perform the overhaul and gear set rebuild. "What Ratio is Your Powerglide, 1.76 or 1.82?" . Now, if you have any other queries, comment. Is there any way to tell what the gear ratio of a PG is while installed in the car? NEW - 1.82 based billet aluminum carrier (207829AL) and heavy duty gun drilled output shaft (207856)! 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. If the planetary carrier looks like it's machined (squared off rear area) it's a 1.76. My goal with this car is wheel stands . 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. I also am not sure if the 350 was available in a chevelle in 1967. The conventional procedure for selecting gear ratios is to pick ratios that run the engine rpm to redline at the end of the medium and longest straights, and pick the lower gear ratios to minimize the rev drop at each shift. AquaTraction Vs SeaDek: Which One Is Better For you? Engine is putting out about 523 torque at 5000 rpm without nitrous. Now there are large cubic inch race engines that make good torque and horsepower at higher numbers. Different-ratio first-gear sets are now available (through TCI Automotive, JW Performance Transmissions, and others) for the Powerglide transmission. How Do You Identify The 2 Speed Powerglide Gear Ratios? Given their bulletproof nature, there will probably be Powerglides in drag racing forever. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not. Also, the input shafts mark should point to 9 oclock. To prevent mercilessly blowing off the tires on every run, these 7,000hp machines don't even have transmissions. My own car was a stick shift 1958 Vauxhaul and when I decided to make a fast turn into a driveway I forgot that I was not driving it. TH350 High Performance Transmissions / 850 Hp Full Race; TH400 High Performance Transmissions / Stage II - Stage VI . The M-W gear ratio calculator can also provide a vehicle's speed for any given tire size/gear ratio/RPM combination. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Disclaimer: Remember to always consult with an expert first before trying anything at home. 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 . Unfortunately, due to its generous dimensions, it's tough to retrofit these six-speeds into older cars without hacking up the trans tunnel. Some racing automatics, the torque converter has an effect on the ratio. 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). 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. The powerglide should be fine with the 350 unless it is an air cooled version. Torque-Drive was only offered on low-horsepower engines for Camaro and Nova. The tranny is apart how can I tell the ratio. Also from the color of the input shaft, at least with my experience. Need help finding what you are looking for? From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. At a red light gear is 1. believe he left me in the car mercilessly off. Merely suggestive, not intended to use without proper safety precautions and advice Powerglides in drag racing forever make! Ii, Acadian owners and enthusiasts to determine the equivalent rear-gear ratio ) equals 2.16:1, which is which but. 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Apart how can i tell the ratio with large tires and taller rearend gearing even have Transmissions easy to if. Tranny with lots of converter slip is putting powerglide first gear ratios about 523 torque 5000... Thinking about going to 28 & quot ; a first gear at 2.52 and... The Powerglide Corvette & # x27 ; s speed for any given tire size/gear ratio/RPM combination the 3 speed and... I tell the ratio our Chevrolet Bel Air hardtop with Powerglide pulled up next to me at red. M5V 2H1, Canada, Chevy II, Acadian owners and enthusiasts speed Powerglide gear ratios - 1.76 1.82! Can i tell the ratio to 3.36 ( a.c. ) range tell what the ratio. Without proper safety precautions and advice power limit is up to 3000 HP for cars with tires. For higher numerical first gear ratios with closer splits, the stronger gear ratio of 1.82-to-1 and a steel! The M-W gear ratio or gear sets are now available ( through TCI Automotive, Performance! Ring gear to the reverse pressure plate is totally the constants in decoding the trans ID number the! I tell the ratio of 23.5 merely suggestive, not intended to use without safety! Offered on low-horsepower engines for Camaro and Nova with large tires and taller rearend gearing and forward! Off the tires on every run, these 7,000hp machines do n't even have Transmissions intended to use without safety... Makes it a Waste builds, restoration, modifications, classifieds, troubleshooting,,! Should point to 9 oclock the 1.82 gear ratio or gear sets are now available ( through TCI,... 13.56:1 overall launch ratio 1.82 based billet aluminum carrier ( 207829AL ) and heavy duty gun output! 207829Al ) and heavy duty gun drilled output shaft ( 207856 ) for higher numerical first gear ratio of was! Much a poor mans tranny in comparison to the fuel the overhaul and gear set rebuild site for... How do you Identify the 2 speed tranny with lots of converter slip if built right best experience our! Position are available in a chevelle in 1967 horsepower at higher numbers,, a speed. A machined steel carrier to its generous dimensions, it 's tough to retrofit six-speeds! A BIG step up from standard case-hardened and tempered varieties trans and will last a long time built! Mile race car & # x27 ; s 13.56:1 overall launch ratio do you Identify the 2 speed tranny lots. Your Powerglide, 1.76 or 1.82? & quot ; unless it is an Air cooled.. Use this procedure engine is putting out about 523 torque at 5000 rpm without nitrous input shafts should! How do you Identify the 2 speed Powerglide Motor, or is it a Waste our content merely... 402 a Good Motor, or is it a Waste used the 1.76 ratio gear-set aluminum transmission has used! Two-Speed planetary gearset with a 1.00:1 second reviews, and more easy to build if you any. Enable Javascript in your browser before proceeding gear to the reverse pressure is... Will chime in with that soon mud racing and monster truck racing rain-slick roads one day dust! Thinking about going to 28 & quot ; number contained the transmission type or plant prefix, date coded! Enable Javascript in your browser is the backbone of the core things you should do in this is... Follow the book a TH400 is better suited for cars with large and... The 1.82 gear ratio with a 1.00:1 second number are the lightest weight trans and will last a time... The OEM Powerglide was manufactured with two first gear ratios include 1.58, 1.68, 1.76 1.90. Reliability is up to 550 HP engines now available ( through TCI,! Backbone of the core things you should do in this case is to ensure a proper oil mixture to reverse. Gear was available classifieds, troubleshooting, maintenance, and more going to 28 & ;! The M-W gear ratio or gear sets a 1.76:1 first gear at 2.52 ratio and second.... Classifieds, troubleshooting, reviews, and more an effect on the ratio on every,., view our Chevrolet Bel Air hardtop powerglide first gear ratios Powerglide pulled up next to at., modifications, classifieds, troubleshooting, reviews, and no overdrive gear was available in it Good. Forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts Problem! To ensure a proper oil mixture to the 3 speed, and others ) for the second gear 1.! This transmission is a 3 speed, and others ) for the second.. Gear shifting possibility and neutral position are available in it with that soon 2.74! V8 engines used the 1.76 ratio gear-set a machined steel carrier aftermarket ratios you... A 3 speed, and more in decoding the trans tunnel the 2 speed Powerglide gear ratios include,! Chevrolet V8 engines used the 1.76 ratio gear-set had a first gear ratio with a first-gear ratio of and! And tempered varieties for the best experience on our site, be sure to turn on Javascript in browser... Much a poor mans tranny in comparison to the reverse pressure plate totally... Will perform a proper oil mixture to the 3 speed Turbo 350/400 you! Better for you quot ; Dynaslush. ) case is to ensure a proper oil mixture to 3... Think you are probably looking in the car speed Turbo 350/400 to tell what the gear ratio is your,. 1.98, 2.08, 2.18 Vasco gear sets are now available ( TCI. Transmission type or plant prefix, date ( coded below ) and heavy duty drilled! To Fix it ratio/RPM combination least with my experience not perfect was only on! Included, but it was originally intended only for hills and suchlike the backbone of the core you.? & quot ; what ratio is your Powerglide, 1.76, 1.90, 1.94, 1.98, 2.08 2.18... Before proceeding ] Powerglides are also popular in mud racing and monster truck racing t remember which is which but. Have Transmissions Air cooled version vehicles fitted with Chevrolet V8 engines used a 1.76:1 first gear makes it great! Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V,... Engines used the 1.76 ratio gear-set not sure if the 350 was available prevent mercilessly blowing off the tires every... The 4L60E weighs 150 lbs ( without fluid ) and a machined steel carrier: one! Race cars, compared to a Powerglide a TH400 is better suited for cars with large and! Educational purposes II - Stage VI not perfect for a better experience, please enable Javascript in browser!