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Thread: dyno tune or mail order

  1. #1

    dyno tune or mail order

    I have a Nelson tune already but i just got my finish line tranny in and they suggest stock tranny line pressures so i was gonna get the tune redone for the tranny anyway and im wanting to do something else to th engine before i ge it tuned again. so would the dyno tune give me a lil more power or is it the same?
    01 GMC Sierra, 141.6 db sound system, Nelson performance tune, flowmaster, k&n air filter, FLT level 3 tranny w/ 2600 stall, LS3 cam, LS6 valve springs, More to come

  2. #2
    Join Date
    May 2008
    Location
    Southern WI
    Posts
    460
    Basically a mail order tune will yield more gains in overall drivability, but the dyno tune will get you more peak hp. I wouldn't worry about the dyno tune unless you have some extra money to play with at the time.
    Mike
    2000 RCSB
    '05 LS2 11.5:1 C.R. l K&N l LT's l Torquer V2 l PAC Springs l Manley 7.4's l 92mm TB l LS7 Lifters l Circle-D 3200 l P&P TB l ARP Rod Bolts l LS1 E-fans l Nelson 93 Tune l Brand-X 100 Shot l Walbro 255 l Duals w/ X and Magnapacks l Vette Servo l Transgo S.K. l 30K Cooler l Detroit Tru-Trac l Motive 4.30's l ARP Cap Studs l TA Girdle

  3. #3
    ff_jeff Guest
    Being that Mail order retunes are free, I would get both. You should be able to pick up some more power on a dyno.

  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    Handling the trans tune is no problem, we tune for built transmissions all the time, so easy a caveman... lol.

    As for getting a dyno tune, why not get a wideband, run the truck on the street and let me know what the a/f ratio is, then we'll fine tune it. A lot less than a dyno tune, plus you have a valuable tool afterwards.
    Doing it this way, you'll get the same results because.
    -things like TM, no need for a dyno tune
    -i've already got the timing table setup and maxed for your truck/oct level
    -shiftpoints, no need for a dyno tune
    -trans tune, no need for a dyno tune
    -speed limiter, rev limiter, misc settings/adjustments, no need for a dyno tune.

    PLUS, once you get done with your dyno tune, you still need to install a wideband and test and tune the a/f ratio for street driving, it's always different when on the street.

    SO, in your case, the only advantage you'll have by getting a dyno tune is dialing in the a/f ratio, you and I can do that (plus I bet it's pretty close anyway).

    hope this helps,
    allen
    Last edited by farmtruc; 12-09-2009 at 09:35 AM.

  5. #5
    ff_jeff Guest
    There ya go.

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