How about a good Drag race 904 build discussion
Hey buddy . Was not tryin to start a feud with you. Came here to make friends and share experiences. Racing is not cheap and I understand your skeptism when someone comes out with a new component. I also am not suggesting that everyone should run out and buy one or an aluminum drum. As you said . Those were my personal choices.
I also understand that there are some disagreements about drum explosions only happen to 727,s . I read something on another thread where a guy said the 904 drum can spin to 24,000 rpm without letting go. That may be true. The few that I have seen I never investigated to see which model trans it was.
But If I may I would like to offer my justification for my purchases.
Every company that offers a low band apply is trying to protect the roller clutch from damage by what I will call reverse engineering No torqueflite was ever designed to leave a starting line at some extreme rpm. So they have tried to design the valve body to do what racers demand of it and not hurt the clutch. As I understand it the challenge is to still keep a clean 1-2 shift.
When Turbo Action sells you a converter or manual shift valve body, they also supply explicit instructions not to do a burnout in 1st gear, because they are trying to protect the roller clutch.
When I read Carl Munroes torqueflite book in the opening paragraph .written by Carl and Rick Allison they emphasize the need to do everything possible to protect the roller clutch. They also mention if I am reading it correctly, two possible methods of failure on the 727. One pertains to the cam failing, the other to the rollers.
All these years using the 904 there has been no other alternative but to use the stock roller clutch. But finally all these years later Ati in conjunction with Chrysler have decided to make a better mousetrap. In my book that is not a sales pitch, but a wholesale improvement.
By racing standards $ 350 is cheap insurance when using a valve body with no band apply like I have. You only have to take a very close look at the pictures of that new clutch to see the patented ingenious of it.
As for the drum in a 904 it may not explode , but you can still break the roller clutch
The best improvement in 1-2 shifts in my car never came from a valve body, it came from a light drum and sunshell that make it way easier for the band to stop it spinning when called for.
The cost for the drum versus performance gained is probably comparable to the similar money spent on the engine. There is no such thing as a ten second car. There are just different way to make your car run tens. If I am late on the tree, and cannot run my dial in, then yah they are all gonna go by me.
I too am on a budget. Have not put money into the car in years. Cost me $100.00 dollars to rollerized my trans myself cause I am a Toolmaker by trade and have access to machinery for free. I too would never pay for one of those high dollar trans.
Hope we can agree to disagree and be friends. I know I am new around here but I have built my fair share of torqueflites for a lotta years too. But hey I am always willing to learn something new.
That's why I ,m here.
No hard feelings I hope
Duane