revolutiondsl
Cat buys my Cummins parts
- Joined
- Jun 3, 2007
- Messages
- 1,391
47RH call HTS
I will tell you how well a BTS 4R100 setup for drag racing works behind 1000 hp in a month or so
47RH HTS is my vote, I tried the ford trans and controller seems like they are always needing tweeks on the controller.
Give Jeff Garmon a call too...after watching what he's doing nowdays....he should be a contender when your final decision is made.
I'm getting ideas for a street/strip full size OBS ford truck with a 12v cummins used for drag racing and fun. HP will go up as money allows, so the tranny is expected to be fully built.
Standard trannys are out (too slow).
Gasser trannys are probalby out too because of the weight of the truck and torque. Lenco's and liberties are mostly full time racing trannies, so I'd have to say they're out.
The allison doesn't seem to be the cure because of the defuel on shift problems. The 5r110 is prone to breaking from what I hear.
So that leaves the 47re/48re, e4od/4r100, and the new dodge 6 speed(68rfe and Aisin).
Anyone have a suggestion for what tranny will last the longest and be the strongest? I don't think the dogde 6 speed has many parts available yet and it's probably not proven, but it would be cool if it will hold the same power as the four speeds.
How do the 4r100 and 48re compare? If suggesting the dodge 47 and 48's, which one is better?
Thanks,
Clayton
Guess my vote is a modded 48RE, seems like it would be common knowledge. There is no aftermarket transmission stronger that I know of for moving our weight with high horsepower. That is provided that it contains the best IE after market parts setup.
The US gear OD will not hold the hp I am talking about so I hope you where not planning on including it in your build.
There are lightened/tube trucks running car race trannys with good results but they would get a faster ET and more mph if they ran a fully bombed 48RE. Every 47/48RE has a built in trans brake, knowledge that a few builders know of but don’t share as it is hard on components and is useless in this application.
The 4r100 gear ratios would probably fair better with lower hp trucks in the quarter. In higher hp trucks the 48RE ratios are better IMHO.
There are several good builders each with adimit followers out there now a days. What will set them way apart on who is truely best is going to be their parts/package selection. All the rest is pretty much fluff. :hehe: