12-08-2006, 01:08 PM
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#1 (permalink)
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Join Date: Nov 2006
Location: Southeast, PA
Posts: 46
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New Truck Mystery #2 - boost elbow?
Along with the injector mystery, I have a boost mystery. I found the boost elbow which came with the TST #11 kit.This explained why I can peg the needle on a 35 psi boost gauge on a good hill. After asking some other Cummins owners, 20-22 psi is factory. I realize the boost elbow will increase the boost by blocking the wastegate form openning too early. However, from most of my reading, 30-32 psi is probably as far as it is worth going on the stock turbo which I think is still on this truck.
Anybody know what the boost elbow on a #11 kit should should elevate the boost to without being tampered with? If I want to turn it back, anyone have experience playing with the Allen head adjustment?
Thanks,
Dave
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Dave DeChristopher SE PA
'98 2500 QC, 4x4, auto, 12V, LWB, #11, BHAF, 300 HP Inj., 4" exhaust, gages, 3.55 gears, 265's
'79 CJ-7 Trail Rig - I6, T18, 33" BFG MT's, '60 Willys Pick-up - IH 304, T19, 6" lift
"Where ever I go, there's I AM"
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