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HX40 - What Boost?
Old 01-23-2007, 06:46 AM   #1 (permalink)
Buck88
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Join Date: May 2006
Location: DMax Capital of The World, S. MEXIfornia
Posts: 187
HX40 - What Boost?

I recently got my hands on a used Piers 40. First off, I didn't know how laggy these turbos are. The boost gauge got real lazy. Cruising at 55mph, light throttle I'm only registering 2 psi It takes a lot of throttle and HEAVY smoking to get some boost. Maybe its just me going to a HX40 from a 35, but is that normal?

My second issue is I'm only seeing about 26 psi out of the thing. What boost is appropriate for this turbo and how do I adjust it?
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1998 Dodge Cummins 12 Valve, QC LB, 4x4

Engine
#100 plate, 3k GSK, PDR 370's, PDR HX40, FASS 150/180 @45psi

Tranny
Goerends Triple Disk 400/900, ATS VB, Suncoast Input, Intermediate, Flexplate

Wheels/Tires
17x9 Walker Evans Racing Beadlocks, 305/70/17 Nitto Terra Grapplers
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