• Welcome to SVTPerformance!
ATTENTION!
You may experience intermittent issues while accessing the site over the next 60-90 minutes, as we perform maintenance and upgrades.

Is only having a new tune worth it?

Discussion in '2nd Generation' started by coild, Apr 11, 2021.

  1. coild

    coild Boss 351 to SVT Cobra Established Member

    Messages:
    585
    Joined:
    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Hi guys!
    Just wondering if it is possible to have just a better & hotter tune installed without having the crank pulley changed for more boost. Is it worth it? Any idea what the HP/TQ increase would be? 2004, bone stock, 90,000 miles.
     
  2. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member Single Barrel Sirs

    Messages:
    96,116
    Joined:
    Nov 17, 2002
    Location:
    Cheshire, CT
    I guess it depends on how good your current tune is. If you don't change any bolt-ons, I would not expect a big enough power increase with a new tune to make it pay off. What size upper pulley do you have now?
     
  3. DSG2003Mach1

    DSG2003Mach1 Premium Member Premium Member Established Member Single Barrel Sirs

    Messages:
    11,581
    Joined:
    Apr 15, 2004
    Location:
    Central Fl
    If no tune at all and you tune it, it would probably be a decent increase and the trans tuning is always a big plus imho.

    if it has a tune on it, unless it's crap a retune on the same fuel would likely net very little
     
  4. coild

    coild Boss 351 to SVT Cobra Established Member

    Messages:
    585
    Joined:
    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Truck is bone stock.
     
  5. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member Single Barrel Sirs

    Messages:
    96,116
    Joined:
    Nov 17, 2002
    Location:
    Cheshire, CT
    Then most-definitely a tune alone is worth it! You will notice an increase in performance, but is there a reason you might not want to also go with a smaller upper pulley? You're missing out a lot if you keep the stock upper. Example, my '03 Cobra made 385/370 with nothing but a catback and intake. I went with a 2.90 upper, tune and 4-piece idler set and it jumped to 459/480. I still remember the first drive after the install. OMG! HUGE difference. So much so that I didn't want to park it. So, you really should go with a smaller upper with the tune.
     
  6. Dusten

    Dusten Well-Known Member Established Member

    Messages:
    14,167
    Joined:
    Jan 20, 2006
    Location:
    Conway, Wa
    A good tune will net drivability and trans increases.
    I'd recommend a good valve body too. A good valve really makes these trucks drive good.

    Nick lowedes had his truck deep in the 12s on stock boost.
     
    DSG2003Mach1 likes this.
  7. coild

    coild Boss 351 to SVT Cobra Established Member

    Messages:
    585
    Joined:
    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Thanks for all the good info!
     
  8. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member Single Barrel Sirs

    Messages:
    96,116
    Joined:
    Nov 17, 2002
    Location:
    Cheshire, CT
    Let us know what the results of your tune are for your Lightning, and try to get a baseline dyno run to compare before and after if you get a dyno tune.
     

Share This Page