Recent content by Detonation

4bt's have been known to make over 600whp. There are definetly alot of 400+ whp 4bts out there without too much issue.

On welding the manifold, it can be done and last many many years, but it has to be done right. You have to grind the crack completely out, and I usually go 1/2 further out, about 1/8" from the bottom, if not all the way through (depends on how bad the crack is). Preheat, preheat, preheat...

Well, I don't post on the forums often, as I'm content to lurk around, but I stumbled across an article on a welding forum I felt compelled to share here, as I know many members weld. It turns out that using brake cleaner (the chlorinated type) and welding/heating it before it evaporates can...

Any chance you have some hemostats laying around? A nice curved set works pretty well

Auto or 5-spd?

The G-56 has trouble staying in one piece behind high HP cummins though. The NV4500 and 5600 with an input shaft upgrade will live a long long life behind a 400-500hp cummins. The one consideration is that the 5th gear on the NV4500 needs a bit of work.