The ratios in the 2000 cobra r t56 are off a 2.97 first iirc. So I understand what changing the rear end gears do. Calculate 1/8 mile ET,MPH and Ideal Gear Ratio using HP - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! -Choice of two different gear ratio sets (2.66 or 2.97), with unique double overdrive ratios-Incredibly short, extremely low-effort shift throws, with crisp, precise engagement-Modern OE supercar technology for the ultimate pro-tourers, road-racers, and more. For example, the Richmond transmission has several different first gear sets available: 3.33:1, 3.06:1 and 2.89:1. They also sell a mixed ratio t56 (tuet16884) with 2.97 1st, 2.10 2nd, 1.46 3rd, 1.00 4th, .80 5th and .63 6th. Rear end. The vehicle is a 62 impala LS3 376/480 crate engine, the transmission is going to be the t56 magnum. The gear ratios offered by this transmission do vary depending on the application in which it is used. The T56 is longitudinally mounted, and is a 6-speed manual transmission. Ratios available were a 2.97-1 1st gear set, a 2.66-1 1st gear set, and a close ratio gear set with a 2.29-1 1st gear ratio for road race applications. Gear V160 T56 Magnum "close" T56 Magnum "wide" 1 3.827 2.66 2.97 2 2.360 1.78 2.10 3 1.685 1.30 1.46 4 1.312 1.0 1.0 5 1.0 0.80 0.74 6 0.793 0.63 0.50 As you can see, the t5 The T56 also includes stronger, high-capacity gear sets, input shaft and output shaft used in the TREMEC TR6060. The NV3500 gear ratios are tall and obviously built for a work truck not a sport truck. It also offers a pair of overdrive gears – 0.80 (fifth gear) and 0.63 (sixth gear) – vs. the TKO’s 0.64 fifth gear, which enhances the cruising speed options around town. These new gear sets were created to ensure torque capacity as well as meeting program fuel economy and performance requirements. Anyone know what the gear ratio is for each gear of the 6-speed manual, M6 trans? 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. Notice the magnum's 4th gear is equivalent to the Supra 5th gear. The first has the following gear ratio's 1st-2.95 2nd-2.10 3rd-1.46 4th-1.00 5th-0.74 6th-0.50 Reverse-2.90 … Setup Result; Target speed: mph Target rpm: rpm . Features. Reverse Ratio. How about a change in the rear end ratio, or a 6-speed swap? Also, the gear ratio spread is better matched to a higher-power engine with the six-speed, for a greater overall feeling of performance. The transmission is also rated to handle just over 3200 pounds GVW. (note these may not be exactly correct as i've found various ratios for the t56 online, but none were vastly different from this) So I found some calculators Syncro'd First Gear. New Fifth and Sixth gears with performance-oriented 0.80:1 and 0.62:1 ratios are installed in the Viper main housing. Alright so I need technical help with gear ratio for trans and final gearing selection as these are a bit beyond my current level of understanding. 2006 C6 Corvette with MYC automatic and GM8 2.56 gears (optional) 2005 C6 Corvette with MM6 T56 manual and GU6 3.42 gears (standard) 2005 C6 Corvette (Z51) with MZ6 T56 manual and GU6 3.42 gears (optional) 2005 C6 Corvette with MX0 4L65-E automatic and GU2 2.73 gears (optional) Aston-Martin DB7 N/A 5 N/A Yes 3.55, 2.04, 1.40, 1.00, 0.74 N/A Aisin-Warner AW-4 N/A 4 N/A Yes 2.80, 1.55, 1.00, 0.69 N/A Aluminum case Found a good deal locally on a T56 trans. T56 and T56 Magnum transmissions have two overdrive gears. Example: 5500rpm * 25.5" For those customers, we offer a Cobra Overdrive Upgrade as part of our Level 3 Viperized T56 Rebuild that offers a more usable 5th (0.79:1) and 6th (0.63:1) gear ratio set. There’s a lot of gear ratio choice inside a transmission too. Wondering what a change in tire size will do to your gearing? In the 06 model, it is still good to 50 mph, and even with 4.56 gearing, it is good to 41 mph. In the critical 1st to 2nd shift, the 06 manual transmission causes the engine to drop less in rpm following the shift. Which one is Best for my setup 2015 GT with 2.9 Whipple 331 Gear ratio Looking into upgrading into T56 Magnum XL which is best suited for my setup. R34 GTR / T56 1st Gear Ratio 3.83:1 / 2.97 2nd Gear Ratio 2.36:1 / 2.07 3rd Gear Ratio 1.69:1 / 1.43 4th Gear Ratio 1.31:1 / 1:1 ... Best to look at the ratios of the box you plan to install. The Tranzilla T56 could handle 1,000 lb.-ft. of torque, and the “Son of Tranzilla” was rated at 750 lb.-ft. of torque. These units were the best of any model T56 … Here is a comparison of the T56 Magnum gearing vs the Toyota Supra Getrag V160. 2007 C6 Corvette Z06 with MM6 T56 manual and GU6 3.42 gears. Second gear ratio is 1.85:1; third gear ratio is 1.31:1; fourth is 1.00:1 and as pointed out earlier, fifth is overdriven at 0.77:1. Fourth gear is 1:1 ratio just like 4 speed transmissions in the old days. Just for the record, I only post on gear ratio threads. First gear is 2.66:1 with a sixth gear ratio of 0.63:1. Casting Numbers. The 2.66 has much wider spacing. Many of our F-Body customers aren't satisfied with the generous 5th (0.74:1) and 6th (0.50:1) gear ratios that GM specified on the stock T56 Transmission. If you go with the 2.66 first, it'll be like the MT-82's 2nd gear, and the T-56's 2nd gear will be like the MT-82's 3rd gear. The transmission you have will change the gearing you want. Changing the rearend gears to a ratio that suits quarter mile performance will sometime cut top speed(in OD).To figure out if this will happen,just leave the mph blank(at end of quarter mile) and multiply the gear ratio(you have) times the OD gear ratio.Working backward,you can find the mph(top end now,not quarter mile!). But what difference would someone see between these T56's offered by Latemodel Restoration? You can loosely follow this: GTO/T56 with 3.27 is similar to F-body/T56 with 3.55 gearing. The 2.97 was the closest match to stock but the 2.66 has a closer ratio spread. The T56 comes with two options for ratio sets 2.66 first gear or 2.97 first gear. There are other options too, you dont HAVE to use 4.11's there are other ratio's for that diff ie 3.27, 3.46, 3.73, 3.91. :cheers: I thought is was the close ratio Tremec T56, but if that were the case, we would be able to go the speeds below according to my calculations @6200rpm for 1st, 2nd, 3rd: 1st = 51mph 2nd = 77mph 3rd = 105mph 1st 2.66; 2nd 1.78; 3rd 1.30; 4th 1.00; 5th 0.80; 6th 0.63 1990-93 5 … These are the gear reatios for an ls1/t56 powered corvette Gear Ratio1st gear 2.97:12nd gear 2.07:13rd gear 1.43:14th gear 1.00:15th gear 0.84:16th gear 0.56:1final drive 3.42:1. Choice of two different gear ratio sets (2.66 or 2.97), with unique double overdrive ratios Incredibly short, extremely low-effort shift throws, with crisp, precise engagement Modern OE supercar technology for the ultimate pro-tourers, road-racers, and more. Forward Ratios. Tire size / - Transmission. No. This is what I have in my car and is the best of both worlds. 2.66 or 2.97? T56 Super Magnum Gear Ratios Brute strength . I plotted the overall ratios for the MT82 and stock 3.31 gear, and both T56 options with different rear gear ratios. Stock rear end ratios for North America. Although they both have a 1:1 4th gear. The Ford PerformanceTremec Magnum T56 Transmission is equipped with a 26 spline input shaft and a 31 spline output shaft and features provisions for mechanical and electronic speedometers. I chose the #1260 as its final gear is .62, as opposed to the .68 of my T-3650. I've tried 3.55's and 3.27's with the GTO trans and a stock LS1 and I prefer the 3.27's and would probably like 3.08's. Rear end gearing and which magnum gearing need to be determined. NEW GEAR RATIOS A new close ratio set was introduced for the MH3 ratio. This could mean you could have any number of unsuitable ratio's in the diff. The 4.10 gear provided the closest match to stock. I need some help to choose the right gear ratios for my car. The MG9 gear set is also new. The "Viper Spec", as it is called, has a .5 final gear and figure one should run a 4:10 rear to have any sort of reasonable HP in that gear. First gear with the 05 model is good to a ridiculous 57 mph. Fairly easy swap with a couple modifications. If you want good highway mileage, go with this ratio as this will run your RPM's down over the long trips. Will try to include all relevant info. Well, now you can find out. Featuring a 700 lb.-ft. maximum torque capacity, the T56 has an exterior case similar to the fourth-generation F-body transmission. Corvette and viper t56's and t6060's are different as well I believe the camaro t56 from like 96 until 2002 was 2.66, 1.78, 1.3, 1.0, .74, .50 as well. First gear is 2.29:1 while sixth gear is 0.68:1. The T-56 six speed manual transmission has been used in a wide range of vehicles from General Motors, Dodge, and Ford Motor Company.The transmission was originally designed and built by BorgWarner for the Dodge Viper later being used by GM in 1992 for the generation II and later engines, but from 1998 was built by Tremec, though nothing changed internally. MAGNUM 6-Speed for Ford, 26-spline input, wide ratio, 2.97, 2.10, 1.46, 1:1, .74, .50 WIDE RATIO VERSION great for everyday street use. Forward Gears. This Tremec Magnum T56 Transmission is capable of handling up to 700 lb-ft of torque. Check out the ratios here TREMEC MAGNUM XL T56 6-speed Solution to poor shifting in S197 Mustangs - Modern Driveline Notice the ratios? Currently running an NV3500 with a 355 and 3.73 rear end on a single cab 95 c1500. That way you have the more practical close ratio 5th and 6th for the freeway and wider 1st through 4th. Manual Transmission Gear Ratio Charts for GM/Chevy Vehicles Posted by OnAllCylinders Staff on October 27, 2017 at 12:44 pm Gear ratio affects a variety of driveline combinations, so it’s important to know what the gear ratios are for a gearbox you might be swapping into your ride. Can somebody plug in the following data and give me the top speed in every gear for each gear ratio? Gear Ratios. Some t56's have a 2.97 first. The stock gears in a factory T56 is supposed to be 3.73, but being a BA ute, yours wouldn't have had a T56 standard so it's been retro-fitted.

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