I'm building my first 2004R that will be mostly on the street with some drag racing. The Buick 350 will put out 350 to 400+ HP but the Regal will get a 455 after that. I've been reading on different sites of what needs to be done so I hope there is a trans man here to help me out. I read on Jakes Performance that the forward drum needs to be a Billet with a different shaft to survive 500 HP. Here is the section.
Above the 400 HP/TQ level we believe that an aftermarket forward drum with 4340 shaft installed is required for reliability, particularly in heavier cars. Please take note here, when you are shopping for a 200-4R, see if the vendor installs a "billet" forward drum or if they install an inferior "hardened drum" or just a stock drum.
We will show the issue with a stock or hardened drum for the stouter street cars later in the article.
We often see competitors rate their 200-4R's for 500 HP or even more and nothing listed about the forward drum. This is a $400+ component that a builder isn't going to dismiss on their build sheet.
This seems like the most expensive part but others are needed. I would just like to here the parts you guys put in them so they hold up. I am using 3.73 rear gear so should only use 1-2-3 gears of the trans at the track. But I want overdrive and lock up on the highway. Thanks Ron Butz.
Above the 400 HP/TQ level we believe that an aftermarket forward drum with 4340 shaft installed is required for reliability, particularly in heavier cars. Please take note here, when you are shopping for a 200-4R, see if the vendor installs a "billet" forward drum or if they install an inferior "hardened drum" or just a stock drum.
We will show the issue with a stock or hardened drum for the stouter street cars later in the article.
We often see competitors rate their 200-4R's for 500 HP or even more and nothing listed about the forward drum. This is a $400+ component that a builder isn't going to dismiss on their build sheet.
This seems like the most expensive part but others are needed. I would just like to here the parts you guys put in them so they hold up. I am using 3.73 rear gear so should only use 1-2-3 gears of the trans at the track. But I want overdrive and lock up on the highway. Thanks Ron Butz.