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  1. 94-98 Performance Parts Discussion
    I’ve been thinking about doing a compound turbo setup with the turbo I already have (59/80 .84ar turbo) and using a stock hx35 behind it. I’ve heard that the bottom turbo must be bigger than the top. But how much bigger? Would the setup I’m talking about work and if it will how much boost could...
  2. 98.5-02 Performance Parts Discussion
    2002 24v Cummins, arp head studs firepunk comp1 with stock stall converter, 3.55 gears, 250hp injectors, hot rod vp44, fass 150, quadzilla tuner Was looking into compounds as the turbo I have now does it’s job but I want more power and 100% need lower egt as cruising at 65 egt is 900 and will...
  3. 94-98 Performance Parts Discussion
    Hey guys, I'm trying to figure out why my compounds setup isn't lighting how it should. They don't seem to spool until around 1800 rpms. Is this normal? I am thinking I should be able to get then spooling faster than that? Is my setup not tuned properly? Or do I have not enough fuel to air...
  4. 94-98 Performance Parts Discussion
    So i am currently running an hx35 with a billet wheel over a borgwarner s475 compound setup and im not really happy with my spool up time l. Ive got 140 over injectors, 14 mm delivery valves, timing at 16.5 degrees, and a fass fuel system. im getting alot of smoke on the bottom end and a pretty...
  5. 3rd Gen. Performance Parts Discussion
    Hey all, so I've researched this a while and can never seem find any definitive answers aside from hooking the truck up on a dyno to see what's actually going on. I have used my smarty touch tuner, with the tnt tunes, for a few years now and def get better mpg, response, and power with the added...
  6. 3rd Gen. Performance Parts Discussion
    So I’m planning on getting my he351cw rebuilt with a billet wheel here soon before I decide to go compounds. I know the tried and true stock over 475 is a really common way to go but I read I believe on power driven diesels site that a 475 can support more than what is absolutely necessary and a...
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