He builds all his trannys the same. The most common problem with these transmissions is burnt clutches and bands. I don't care if you use cryptonite clutches,they will burn up if they aren't applied with enough force all in one fell swoop. These wide spread burned clutches aren't something you see with 350 and 400 trannys. The only real difference in the 2004R is its variable volume pump. When you do a,b,and c to a 400 you always get d. This isn't always the case with the 2004R. When you do a,b,and c to a 2004R and don't get d,I say it's because the pump is unable to produce a sudden and instantanious increace in volume that is neede during a shift. 350 and 400 pumps always put out maximum volume.For the last 5 years I've read threads from very dejected people who've done a.b.and c,as have I,and have never gotten d. It's not because they did anything wrong. They/we did exactly what they were told. The things they were told weren't true. They are the people who now have 400 tranys in there cars. This saddens me to no end. I and manny others have never been helped by the so called experts on this site with any information that worked. There are never any specifics. It's usually " So and so built mine and it works great". This does absolutely nothing to help those of us trying to get our trannys to shift right. I dare anyone to tell those of us in this boat something we haven't tried,something different. Yes,as far as billet parts keeping you from burning clutches, they're not better. As far as billet parts being stronger and everything else being the same,they are always better.
Ttype6,
Don't take this the wrong way but you sound like you had issues with a 200-4R (possibly built yourself) and because the pros here didn't give you the free advice, you are pissed off about it.
I'm sure Dave builds a great trans, there are times when the billet isn't necessary, and I'm sure there are ways to build the trans to "work around" some of the parts.
For example, I rarely use the billet OD parts in my ~500 HP builds. I haven't broken any yet and I don't try to set the shifts to kill.
Next,
There is a HUGE amount of FREE advice and information on this forum by some of the best in the business. Whether you agree with everything these guys say or do, they all have a proven track record that speaks for itself.
I personally disagree with some of Bruce at PTS's statements about certain shift kits, etc, however I respect the guy for being in the business every day, having the units out there working, and giving the excellent free advice at the top of this forum. It's a good starting point full of info.
Chris at CKPerformance has been a mentor to me and in many ways a friend, however I don't always agree with all of his philosophies either.
Lonnie Diers, Don Wang, myself, Brian (Bison), and others have spent countless hours on here answering questions, talking shop, etc and it's benefits us as well as the home builder.
I see it all too often that people EXPECT the information we earn the hard way for free. I used to go to several different forums and spend hours answering auto trans related questions. I don't do it as much anymore because it causes more grief than anything and it gets really tiring trying to help people that either won't listen, want to argue, don't have the skills, want stuff for free, won't do any of their own research, etc. It just gets OLD.
There have been MANY cases on this forum where very specific information has been passed along. Bruce's Sticky, and topics here discussing dual feed, valve body calibration, governor mods, etc.
With a little research right here, you can learn to build the 200-4R with almost every trick there is.
As for the TH400 A+B+C does not always equal D, believe me. Nothing is ever that concrete in the automatic transmission world.
The variable displacement pump on a 200-4R is workable piece. I use a heavy pump priming spring on the slide, ala TransGo Hi-Rev pump ring kit. It includes the chromoly pump rings.
You can also block off the pump slide for full volume at all times, although I've found it unnecessary.
I feel that letting the slide move somewhat helps to even out the wear on the pump.