Thread: Pulley Drop Vs Higher Timing (Custom Tune)

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  1. #1 Re: Pulley Drop Vs Higher Timing (Custom Tune) 
    Donating Users gtpsleeper's Avatar
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    Quote Originally Posted by Bio248 View Post
    so i wasnt the only one watching joe dirt the other day then...
    nope i was too... lol

    plus i know we all know this but for the new guy the reason timing is so high while cruising is to get better mpgs... not so much for "performance" persay...
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  2. #2 Re: Pulley Drop Vs Higher Timing (Custom Tune) 
    GT Level Member jdmgtp's Avatar
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    ok, your BOTH right.

    Timing increases with engine speed AND with decrease in load.

    HOWEVER, our boost goes up with rpm as well introducing another factor.

    I find my timing drops a couple degrees from 3000-6000rpms or it will knock.
    2000 GTP, 3.2 pulley, SD headers, 3" exhaust, modded 1.9's, custom CAI, LS6 maf, ported blower/ TB, HPT, 65 lb injectors, E85 in the summer, LM-1 wideband, 180 stat, autolite 104's, GMHD suspension kit. 13.2@104 on street tires w/o ported s/c
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