Originally Posted by lancerman
The t25 mod actually starts to open at 14psi and is full open at 24psi. Works extremely well as it opens gradually. We all know the crossover point for the mani is 4100rpm. But what about when the flappers are half open? Something rpm triggers can't do!
What happens is the crossover is blurred. Mani works very well for turbos that spool between 3800 and 4400. Which is pretty much anything from a 20g to a 35r.
happy boosting
Pretty cool. It makes a lot more sense when you've got the full explanation and the kind of setup you would use it with.
Other than Jerry's explanation of the t25 mod, the last dozen-or-so posts have been pretty wildly OT, so I'm going to shut the thread down.