SpeedFactory (SF)-Modified Shift Change Holder Assembly for B-series hydraulic transmissions!
1st off, what is the SCHA, and what does it do? The SCHA is located inside the transmission housing, and is the internal mechanism that actually moves the shift forks into position, engaging each gear as it is selected.
Why do you need this? Because you can't finish a race with a broken gearset or the inability to get it into gear due to a damaged SCHA. Because yours is wearing out and bending, and you want to get to it BEFORE it breaks and you ruin a transmission and gear set, especially if you're running a dogbox and big power. This also works great with stock transmissions and will help improve shifting, especially the 2-3 shift. Just push the shifter forward, and it will automatically drop into 3rd gear! It pulls the shifter to the center position with authority, to help eliminate the dreaded 1-2-1 or 2-3-2 mis-shift!
We've made improvements and fixed the parts that break so that you can make better and more consistent shifts, lower your ET's, and save your transmission! The SF-Modified SCHA is a vital component of a reliable transmission, and replacing it BEFORE it fails will save you money and frustration in the long run.
We have seen a number of people experiencing problems with missed shifts and/or damaging expensive dogs and syncro teeth, and having difficulty finding the cause of these issues. We have experienced these issues as well in our Outlaw Civic while running the PPG Dogbox. In search of the cause and a solution, we worked closely with Bullhead Gears. They shared data gathered regarding these issues from other racers across the U.S., and we were able to identify the cause of these issues, find a solution, and implement it in the best way possible while keeping costs reasonable. Basically, this product was designed to address the serious need for a stronger, improved SCHA in these transmissions.
We here at SpeedFactory have spent many hours locating the cause of these issues when they occur in a properly assembled transmission through careful inspection and testing. The stock SCHA has been indentified as the source of these "mystery" issues in most cases. The problem areas of the stock SCHA have been identified and we have modified/replaced these parts accordingly, and tested this modified SCHA in our 1100whp Outlaw Civic with great success, as it has eliminated all issues that we had previously experienced.