What is converter slip

An excessively negative fin angle will be far less efficient than a positive fin angle will. As an example, most of the standard build 10" converters will go to rpm or so, but if you tighten up the fin angle it will drop the stall speed down to where an 11" normally can get to, but with greater efficiency.

Feb 3, 6. Feb 3, 7. I'm still a little comfused. Let me elaborate some more on my two examples. What I was doing was comparing mph and rpm trap speeds for the two cars. My camaro with 4. My Chevelle with only a 3. One thing I was wondering was, is this normal, or was the converter in the Chevelle junk.

The good news is, if it is just your torque converter that is having issues since it's a self-contained unit, you may not need to replace or rebuild your whole transmission. Torque converters can be serviced or replaced as a single unit. There are many different types of torque converter problems. The problems come in many sizes, shapes, and forms. But the most common torque converter problems are listed below.

Have you ever gotten in your car, started it up, put it in gear only to feel it shudder? Your car shudders almost as if it's caught the flu and has a temperature. But this shuttering is not caused by a disease. A malfunctioning torque converter can have a shudder that comes from the transmission.

The slipping occurs while you're driving or changing gears, and it usually comes with some odd noises too. Remember, a torque converter is a coupler between the engine and transmission. Its job is to smoothly convert engine torque into hydraulic pressure that your transmission uses to engage and shift gears.

When the torque converter starts malfunctioning, you may feel shuddering and even slipping in overdrive. You usually notice your car shuddering because it feels like it's vibrating.

The shuddering makes the car lag and is very noticeable. Some vehicles have a transmission temperature indicator that will let you know when your car's transmission is overheating. A third method is to use better material on the clutch face a fourth is to increase the clutch surface. Its clutch surface is lined with a carbon-ceramic material, which is finely etched to allow oil to drain away during lockup. This improves the lockup clutch holding power.

What other ways are there to improve a torque converter? We've already discussed the use of a tuned stall speed and a more durable lockup clutch. Another area that can be improved is the front cover, which is the side of the converter that faces and is attached to the engine's flywheel or flex plate.

Since the front cover connects directly to the engine, it is subject to incredible amounts of stress. Many stock torque converters use a stamped steel front cover because they cost less, but under high power loads they can bend or deform. The solution is to use a billet front cover. Technically speaking, a billet part is something that is machined from a solid chunk of material.

Some torque converter manufacturers use a solid disc and weld it to the sidewall, while others simply weld a reinforcement ring into the stock stamped-steel cover. This compromises the cover's strength and can cause it to warp under load. The strongest covers are precision-machined from a single piece of billet steel, which is then welded to the impeller to form the outer shell.

So as you can see, the torque converter isn't just a "little black box. Understanding Torque Converters The torque converter is one of the most misunderstood — or, perhaps, non-understood — parts of the power train.

Comments may be moderated. Submitting a comment signifies your acceptance of our Comment Policy — please read it first! You must be at least 18 to comment.

If you need to review or change these settings after you accept, you can do so from the Privacy Tools page. California residents can also opt-out of the sale of their personal information through the Do Not Sell My Personal Information page.

Accessing certain posts or pages on this website may require you to enter a specific password. If you correctly enter the password, the site saves this cookie on your device to allow you access to the password-protected post or page. For this cookie, "xx" will be a cryptographic hash. There may be more than one of these cookies, particularly if you access several password-protected posts with different passwords.

The cookies normally expire in about 10 days, and are not set at all if you do not access any password-protected content. When you submit a comment, you may have the option save your information for future comments, storing the info in these cookies. For each of these cookies, "xx" will be a cryptographic hash.

The cookies are not set at all unless you select that option when submitting a comment. They normally expire in just under one year, but you can delete the cookies in your browser or other user agent at any time. These cookies are not usually set for administrative users, since comments they submit while logged in are associated with their user ID number and user profile information rather than a manually entered name and email address.

These cookies manage your cookie and privacy preferences. There will typically be several such cookies, each beginning with " gdpr " e. They normally expire after about one year. 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. These first-party cookies enable the Google Analytics service to gather information about visitors and how they use the Ate Up With Motor website.

They may persist for up to two years. These cookies may not be set at all for administrative users unless they access the publicly visible portions of the website, as we do not currently use the Google Analytics service on the site's administrative dashboard or login page.

The "Online Tracking" section of the Privacy Policy offers more information about how the analytics service works, how we use the data it collects, and how you can disable analytics tracking. For additional technical information about the cookies the analytics service may use, see their "Google Analytics Cookie Usage on Websites" page. For your reference when reviewing that page, we do not currently use Google Analytics 4. 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.

This cookie is set when you click the "Disable Google Analytics Tracking" link. If you set the cookie, the Google Analytics service will no longer track your use of the Ate Up With Motor website, even if you previously consented to analytics tracking. The cookie normally persists for as long as the settings of your browser or other user agent permit. If you change certain aspects of the site's appearance using the accessibility sidebar, it may set these cookies to manage and remember your settings.

The wahFontColor and wahBgColor cookies, which are set if you alter the site's color scheme, normally expire after about 14 days, but you can remove them immediately by clicking the "Restore Defaults" button on the sidebar. These a11y cookies normally expire after about seven days, but are removed immediately if you restore the applicable settings to their default values.

If the payment button is visible, it may set the third-party cookies PYPF via paypalobjects. The PYPF cookie normally expires in approximately four weeks, the 01A1 cookie in approximately one year. 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.

Akamai is a registered trademark or service mark of Akamai Technologies, Inc. You can hide the "Support Ate Up With Motor" box and prevent the loading of its embedded content by switching the toggle switch for this category to "OFF. These third-party cookies may be set in connection with embedded video players for content hosted on the YouTube video platform which is owned by Google LLC , for purposes such as without limitation managing video settings e.

The cookies may be set by various domains, including though not necessarily limited to youtube. Some are session cookies that expire when you close your browser or other user agent ; others may remain in your browser or other user agent as long as your individual settings permit. 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.

The Vimeo Cookie Policy does not currently disclose the normal durations of the cookies and similar technologies that platform uses, but it appears that some may remain in your browser or other user agent for as long as your settings permit; some cookies set by the Google Analytics service can persist for up to two years. To learn more about what information the Vimeo platform collects and how that information may be used, see the Vimeo Privacy Policy.