Post by
redtop91 »
https://forums.nicoclub.com/redtop91-u46681.html
Sun Dec 24, 2006 7:27 pm
pwns you: This allows for no difference of speed between the left and right wheels the differential is attached to, and may hop and screech during low speed parking maneuvers. Welded differentials may have a low longevity due to poor welding, however a decently welded differential should be fairly reliable. The welded differential aids in drifting because it allows both of the wheels to spin in a corner, instead of just the inside wheel. Many people claim they like welded differentials better than LSDs, however it is up to personal preference.
Edit: First, you do not want to try to run a welded diff on the street. However, the race track is a different matter. Contrary to some opinions a properly welded diff is nearly bulletproof. I have heard of many welds with zero failures. In all cases the welding was simply insufficient and/or of poor quality. The welding must be done outside of the case and the bearings should be replaced. The part must be preheated and should be TIG welded. A welded diff is inexpensive and low maintenance. Because a welded diff is a no slip unit it can cause understeer or push on slow or medium speed corners. On simple 90 degreecorners this is not much of a problem but on low/medium speed sweepers it’s definitely noticeable. For this reason a welded diff is usually not the best choice for autocross. On most road racing courses, a welded diff is not much of a handicap. Drivers usually say it takes some getting used to but end up liking the positive feel. I should say that welded diffs are strictly amateur stuff. No “professional” race teams use them.