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Old 04-02-2014, 09:12 PM   #935
nelsmar
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Quote:
Originally Posted by Sirsimon View Post
Comparing an off-the-shelf tune (designed for the lowest common denominator) to a custom dyno tune should (nearly) always show positive gains. In my limited experience with Vishnu's work (just the OFT), I've been happy with the care Shiv takes to be cautious and tune for the worst case scenario.

I've paid to have a previous car pro-tuned (call it what ever you want) on a a Mustang dyno with every precaution taken for every change made to that car (not my 86, yet). I always felt it was worth it, but not everyone has the time or money to do so. For those people, the OFT and Shiv's off-the-shelf tunes represent great value. My "old" (based on a Subaru 2007 Spec.B) had WELL over 100 dyno runs. My 86 will be lucky to see 20-30 pulls, no matter what I choose to do with it.

Bottom line, off-the-shelf is adequate for 90% (or more) of car owners out there. If you crave that extra bit of performance and driveability, then you should absolutely eventually get a custom tune. But most people will be well served by the value of the OFT and Shiv's hard, thoughtful work.

DJ
Yup I agree fully. As long as your target afr and actual afr are lining up after trims come in the majority of the gains are had through the OTS maps. Unless you are drifting away from the exact part the OTS maps are designed for most of the cars line up pretty close and need minimal changes.
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