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Thread: 01 upgrading OS

  1. #11
    Lifetime Member anarchydiesel's Avatar
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    all lb7s were rated at 300/520 from the factory.

    Anarchy Diesel Tuning/ Advanced Injection Diesel Technologies
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    Duramax and Cummins Tuning
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  2. #12
    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by anarchydiesel View Post
    all lb7s were rated at 300/520 from the factory.
    Thought it was 300/550 for ALLISON, and 300/520 for the ZF6?

    Quote Originally Posted by caleb24 View Post
    I have an 01 that i upgraded to the 6006 and it was night and day different. I should probably know this but how much hp does a stock 01 have??? I thought it was 300 but looking at some different websites about the lb7 it says like 235 in 01 and 300 in 04. So did the 01 only actually have 235hp? As far as i know all the tables are the same in the stock form between the 2 but is there a hp gain if you upgrade the 01 and 02's to the late 6006?
    All 2500/3500 pickups got the 300HP tuning, but the 01 OS seems to dyno about 5-10HP higher in stock form as the torque based fuel tables allowed more fueling higher up in 01 VS later OS's. With a few small tweaks to the torque based tables, the 02 will outdo an 01 with no other changes I found(since I don't have the change engine oil message to worry about, I swapped back and forth playing with tuning changes to see the differences). In 03 when the MD trucks came out I believe there was a 235HP LB7 option then, but none in the light duty apps that I know of for the LB7.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

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