The TCC solenoid regulates the fluid pressure to the clutch. Torque converter slip question - Ford Truck Enthusiasts Forums Its job is to smoothly convert engine torque into hydraulic pressure that your transmission uses to engage and shift gears. To learn more about how Google may use information collected by the Google Analytics service, see their "How Google uses information from sites or apps that use our services" page, the "Information for Visitors of Sites and Apps Using Google Analytics" section of the Google Analytics "Safeguarding your data" help page, and the Google Privacy Policy. Do Not Sell or Share My Personal Information -. That's because torque converters transfer the power your car engine makes to the transmission in your car. A reverse band surrounds a brake drum connected to the front carrier, which is also integral with the rear annulus (orange). A spring-loaded plunger valve controlled oil flow to the lockup clutchs hydraulic cylinder. In the diagram above, the yellow arrow again illustrates the flow of power, this time in third (top) gear. In Drive, the direct clutch is engaged and both bands are released, causing the input sun gear, the low sun gear (orange), the planet carrier and output shaft (light green) to turn at input shaft speed. There may be more than one of these cookies, particularly if you access several password-protected posts with different passwords. T43 Torque Converter Desired Slip - EFILive He wondered if something internal may be damaged and the tow tune showed it up not allowing the torque converter to unlock soon enough which caused the bog down issue. Remember, a torque converter is a coupler between the engine and transmission. When it comes to automatic-equipped street machines and drag-race cars, the torque converter is a welded-up magic box that few enthusiasts know much about. Lockup clutches were used in some nonautomotive torque converters before World War II, but the first regular-production automotive application was the 1949 Packard Ultramatic Drive, which established a model for subsequent transmission designs. Manage Preferences - As the new owner of a 92 Alante with the viscous clutch I wondered what the difference was. A third drum (dark green) allows the overrunning clutchs outer race to be locked in place by the forward band, which is engaged in all forward gears. ), This cookie was set if you clicked the "Disable Google Analytics Tracking" link to prevent the Google Analytics service from tracking your use of the Ate Up With Motor website. would it work,yet throw out aod default codes. In this design, the two basic components in the fluid coupling are the impeller blades (the drive side), which are connected to the engine, and the turbine blades (the driven member), which are splined to the input shaft of the transmission. Petrol / Gas. Click to reveal 4. Actual shows 640 rpm in drive with the brake on. So I picked up a scan tool to save on the abundant diagnosing fees associated with owning a 2005 5.4 f150. After logging in, the wp-settings-UID cookies store the logged-in user's configuration settings, while the wp-settings-time-UID cookies record the time those configuration settings were last set; again, there may be multiple iterations of each of these cookies, which normally expire after about one year. This and the GM automatic history are probably the most definitive descriptions of these technologies on the Internet, excepting pure design and engineering treatises. This sounds really great, and it is. 1. and 2. 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I re-used the "new" valve body and decided to try out my original solenoid pack to avoid having to reprogram the PCM with the new calibration for the solenoid pack that came with the recycled transmission. When the two problems are combined, it could mean your torque converter is failing. (These cookies may not be set at all for administrative users unless they access the publicly visible portions of the website and/or update their consent settings e.g., by accepting an updated version of the Privacy Policy. It does drove different than a lock up. Your ring and pinion (gear size) Your circumference or roll out of the rear tires. Once the brakes (or the transbrake) is released and the vehicle begins to move, the turbine spins up and the speed difference between the two diminishes. Embedded video players for content hosted on the YouTube video platform (which is owned by Google LLC) may set these third-party cookies and/or use similar technologies to store data in your browser (or other user agent) for purposes such as (without limitation) managing video settings (e.g., tailoring the playback to your connection speed), storing video preferences, providing certain functionality (e.g., allowing you to pause a video at a particular point), showing you advertisements, associating your video viewing and other activity with your Google account (if any), ensuring proper functioning of the service, preventing abuse, and/or compiling user analytics data. The DG series transmissions obtained their indirect ratios with a compound planetary gearset. Most street torque converters tend to operate in the 3 to 5 percent slippage range, but this can go as high as 8 percent. It will also integrate that knowledge with what type of car and transmission consumers are buying. These early units operated on the same principal of using one electric fan to drive another. Most street cars cannot keep the rear tires from spinning if you add too much throttle, and this tends to limit the stall speed. 4. One of the fundamental differences between a fluid clutch (a fluid coupling or torque converter) and a mechanical plate clutch is slippage. The space ahead of the clutch formed a hydraulic cylinder containing an annular steel piston that acted as a pressure plate. Introduced for the 1950 model year, Studebakers Automatic Drive was developed in partnership with Borg-Warner and was more broadly known as the DG series, after the Borg-Warner Detroit Gear Division that did much of the development work. The clutch plate itself, which was faced on both sides with cork, was splined at its hub to the transmission input shaft. If you shop at Amazon.com (for anything), use this link to support FordFlex.net! Tuning. ), These third-party cookies may be set in connection with embedded video players for content hosted on the Vimeo video platform, for purposes such as (without limitation) managing video settings, storing video preferences, providing certain functionality (e.g., allowing you to pause a video at a particular point), associating your video viewing and other activity with your Vimeo account (if you have one), showing you advertising, ensuring proper functioning of the service, preventing abuse, and/or compiling user analytics data. 3. and 5. another masterpiece. The Fora platform includes forum software by XenForo. Change Background Color (Note: This option sets cookies on your device to manage your color settings; see the Cookie Notice for details.). 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87) T43 Torque Converter Desired Slip. Your first course of action, if you notice yourtransmission or torque converter has started to slip or shudder is checking your fluid level. Do you want them slipping when driving? First, that slip wastes some fuel youre paying for more engine revolutions (and more power) than reach the driveshaft. If the fluid becomes contaminated, anything that uses and relies on the fluid can be damaged. For comparison, a four-speed Wilson pre-selector has four planetary gearsets, four sets of brake bands, and a cone clutch, which is a lot of pieces. A malfunctioning torque converter can have a shudder that comes from the transmission. If you use the buttons to make a payment or donation, the PayPal services will set additional cookies (not listed here) to manage your PayPal login and transaction data (and potentially also for various other purposes, e.g., user analytics and/or advertising). As an example, replace your spark plugs if they are original, replace air filter, replace PCV valve. There will typically be several such cookies, each beginning with "gdpr" (e.g., gdpr[allowed_cookies], gdpr&5Bprivacy_bar&5D, and gdpr[consent_types]). if someone would have put in a used ecu ,fron a electric controlled aod. One or more wp-saving-post cookies may be set while creating and/or editing posts or pages, to help manage version control and the autosave feature; these cookies normally expire after about 24 hours. The transmission fluid is an important part of the torque converter in that it is used to provide the fluid coupling and smooth starts and without stalling the engine when the vehicle is stopped in gear. By logging into your account, you agree to our. I was monitoring some Torque converter params for my 4R55E with my in dash scantool. The stator redirects fluid from the turbine to the impeller, radically increasing the force of the fluid entering the impeller and multiplying the torque input from the engine. Unfortunately, additional stall speed also increases the slippage in the converter. by SirHandyMan Wed Mar 27, 2019 12:52 pm, Post Torque converter clutch slip Scan tool values 99 GMC Pickup GM's 6L80 HP Tuning, DoD, and Torque Converters! Wallace Racing - Converter Slip Calculator When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. If the payment button is visible, it may set the third-party cookies PYPF (via paypalobjects.com, which is owned by PayPal, Inc.), which appears to check whether or not you are a logged-in PayPal user, possibly to facilitate the PayPal user login process, and/or 01A1 (via abmr.net, which is owned by Akamai Technologies), which stores certain technical information about your device and browser (or other user agent), possibly to facilitate the login and shopping cart functions. Well Aaron . I switched from a junk converter slipping that much to a tight well built version and picked up .3 and 4mph behind a healthy smallblock (10.2's at 127mph) T43 Torque Converter Desired Slip. Another fascinating article, thank you for all your effort! How To Log Transmission And Torque Converter Slip In HPtuners!!! The stock converter wouldn't with a big tune unless I was cruising at light throttle. Failing Torque Converter Clutch with Slippage - Could be your TCC Solenoid, Re: Failing Torque Converter Clutch with Slippage - Could be your TCC Solenoid, https://www.ecoboostperformanceforum.co 733.0.html. If you delete or disable these cookies, your existing preferences will be lost and you may not be able to save your privacy settings for this website. but the question is when i put my buddys obd code finder on it. To learn more about the specific cookies used and/or to fine-tune your available choices, click "Privacy Preferences" at the right. Multiple different problems, some transmission related, some engine related, all resulting in driveability issues. (author diagram). (For more information about our discontinuation of Google Analytics tracking on this website, see the "Online Tracking" section of the Privacy Policy. The one for torque slip desired is 1020 rpm. I have read and accepted the Privacy Policy 7.3L Power Stroke - Aftermarket & Performance. So, you can see how those would be preferred from a standpoint of cost and packaging! 10r80 Cars on the Dyno - TCC lock S or D - Mustang6G Most Torque Converters today also use a friction clutch to lock up the converter at higher speeds to create more fuel efficiency and less slip. For more information about what data PayPal services collect and how that data may be used, visit the "Legal Agreements for PayPal Services" page to review the PayPal Privacy Statement and Statement on Cookies and Tracking Technologies that apply in your location (the Statement on Cookies and Tracking Technologies that applies to each region is linked from within the applicable PayPal Privacy Statement). The car has just under 77k miles. But this shuttering is not caused by a disease. The _ga and _gid cookies, which were only placed if you clicked "Accept/Enable" in the notification banner, enabled the Google Analytics service to track your activity on the site. if you dont hammer on it everyday it will last you a long time.. my stock converter had 350 rpms of slip on I just checked it yesterday and it was right at the full indicator with the transmission properly warmed up. abs thank you for posting your experience here. Actual shows 640 rpm in drive with the brake on. The second thing to look for is a lot of slippage between Desired and Actual readings for the TCC in Forscan. There are many different types oftorque converter problems. I have yet to read this monumental work in depth. Just thought I would share with everyone some recent learnings I've had with my 2010 EB Flex. I had just bought an SCT with Gearhead tunes. Terms of Service - If your going over ten your gonna need a new torque converter fairly soon..depends how you drive.. my converter started off slipping at about 13 on the 275 and ended up wearing out pretty quick and it began slipping like 45-50 on the gauge. (For each of these cookies, "xx" will be a cryptographic hash.) Crazy Egg is a trademark of Crazy Egg, Inc. Optimizely is a registered trademark of Optimizely, Inc. in the United States, EU, and elsewhere. The turbine and lockup clutch driven plate are both splined to the transmission input shaft (medium blue). This has been a quick jaunt through world of torque converters, but it should at least inspire some intelligent questions to ask your converter company of choice as to the best converter for your application. Doesn't seem to coincide with vehicle shifting though. One thing Ive always wondered about was if any manufacturers looked into Wilson pre-selector gearboxes as a basis of an automatic. I did the trans relearn today with the Spartan 275 tune. (Until late 1954, the transmissions planetary gearset always remain in direct drive unless the driver manually selected Low.) Unlike a reduction gear, this speed reduction doesnt multiply engine torque. It stayed there(18.24) from 60mph to 90 when I let off of it. and our With Torque Pro torque slip shows it at 0-6 rpm at 60 mph and when coming to a stop it jumps to 25-40 rpm then raises to 1400+. :whs: I was seeing 200-300 on the 310 with the stock converter but still felt really strong! .. makes you appreciate the thought and consideration that goes into EFILive if only we could clone the boys (and girls) of EFILive, imagine a Delphi Ross and Bosch Ross, By WS600 in forum General (Petrol, Gas, Ethanol), By Bradazz in forum 4speed RWD/FWD Transmission Tuning (incl T42), By joecar in forum 4speed RWD/FWD Transmission Tuning (incl T42), 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87), http://forum.efilive.com/showthread.012-T43-Tables, If this is your first visit, be sure to By changing the angle of the impeller blades, the torque-converter manufacturer can create a converter that generates a given stall speed with a certain torque multiplication. They normally expire in just under one year, but you can delete the cookies in your browser (or other user agent) at any time. Heat is the enemy of any automatic transmission and will radically reduce its life span if not mediated by an efficient trans cooler. Torque converter seals can get damaged for several reasons. The downside to these converters is that they are heavier and more expensive than non-lockup converters. The confusion stems from the symptoms of a failing transmission, and a failing torque converter is very similar and linked. The Vimeo Cookie Policy does not currently disclose the normal durations of the cookies and similar technologies the Vimeo platform uses, but it appears that some may remain in your browser (or other user agent) for as long as your settings permit. The torque converter of the future will have a carefully tuned control strategy, which takes into account the torque demands of each vehicle. Advertising - by Silver Flex SEL. California residents also have the Right to Opt-Out of the sale of their personal information see the Do Not Sell My Personal Information page. The fluid did not look dirty. Shifting to third gear was accomplished by engaging the torque converter lockup clutch. For example, if engine speed is 2,500 rpm, the turbine might only turn 2,375 rpm: hydraulic slippage of 5%. Generally, by the time you reach the 60-foot mark on the dragstrip, torque multiplication is effectively eliminated and the turbine and impeller speeds are close to achieving what converter manufacturers call coupling speed. That should make you and your car happy. Akamai is a registered trademark or service mark of Akamai Technologies, Inc. in the United States (Reg.
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