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turbo

  1. F

    Other CUMMINS COBRAHEAD DOWNPIPE

    CUMMINS™ COBRAHEAD DOWNPIPE “RARE” This CUMMINS™ design is tried and true for performance gains in fact FORD™ uses it on their later Powerstroke™ and claim a whopping 30+ HP gain over conventional mandrel formed down pipe. This CUMMINS™ COBRAHEAD downpipe “can be used for tight turns in many...
    • FellowTraveler
    • Thread
    • 4" exhaust cobrahead holset & cko hx super 40 hx40 mods hx40w mods turbo
    • Replies: 7
    • Forum: For Sale
  2. F

    6.5L Heath TurboMaster

    USED so it's broken in! $70. ground shipping included USA mainland only.
    • FellowTraveler
    • Thread
    • mechanical waste-gate controllerler turbo turbomaster
    • Replies: 0
    • Forum: For Sale
  3. F

    Other 6.5 TD USED PARTS FOR SALE

    6.5 TD PARTS “USED” FOR SALE (MAINLAND USA ONLY) All parts are off of a 1999 GMC K2500 Suburban “F”. All prices are + S&H, PM your zip code so I determine shipping cost to your AO, PAY PAL + fees accepted. Gear Drive (DSG) DS-4 replaces timing chain & ‘never needs replacement’ $225. Fluid...
    • FellowTraveler
    • Thread
    • 6.5 turbo diesel fluid damper for sale gear drive hx40 conversion for 6.5td injectors starter turbo
    • Replies: 59
    • Forum: For Sale
  4. F

    Boost issue!

    Strange boost issue w/HX40w 18 cm2, normally starts to spool at 1.1k I have boost set to 30 psi (gauge) on a hot day it will boost a little less and on a cool day it would spike a little higher upon initial throttle to WOT there would be a very noticeable cloud of black smoke which would clear...
  5. L

    Hx40 Upgrade

    Hello all, I have a 2000 C3500 and I'm waiting to do the hx40 swap. I've done a good bite of research on it but can't find any info on the difference between T3 and T4 flange. How do I know which I need. Also any recommendations on what turbo to buy. Thanks
  6. Efjay

    Turbo Advice for New Engine Install

    I have a 99 GMC Suburban and I have fallen victim to a cracked block (DOM 3/99). I have pulled the engine out and I am cleaning all the parts that will bolt onto my new P400 that is on order. While cleaning the parts I noticed 2 cracks in the turbo housing (pictured). This is a stock GM8 turbo...
  7. F

    RPM to VE CFM flow through the 6.5td

    AIR FILTER CFM minimum requirements for the 6.5td at various RPM’s and VE values @ WOT only. If your diesel falls flat at WOT or while towing or loaded even with a tune consider the air filter is limiting the ability to flow required CFM and/or air-charge density needs to be increased. The IDI...
  8. F

    Turbocharger Quick Spool Valves?

    I see a few here had installed quick spool valve on their 6.5td however at least one had stopped using it. Aside the quick boost feature is the back pressure off boost that causing issues at cruising speeds, or?
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