Jake Performance

[Rawze]

(12-23-2022 )tree98 Wrote:  Seems like the amount of back pressure on the VG from a fully loaded 4.10 rear truck on stage 3 jake would destroy it in a short time, that's gotta be an incredible amount of pressure. I guess they got it figured out.

It is not that extreme actually ... on most ISX's, during jake, it is about 28 psi on the intake, meaning that it will be holding back about 44-45 psi on the exh. manifold to put into the second cylinder. Some people are reporting the intake pressures are slightly higher (factory programming) on the new x 15's, but I have not seen consistent solid data on them yet myself.