Quote:
Originally Posted by Captain Insano
Is it possible to tune your customers with a road tune (in a relatively safe place to do WOT pulls and proper driving) then perfect the tune with a few dyno pulls? I have had previous cars of mine completely road tuned without using a dyno before by very reputable professional tuners. Me driving following their instructions, them tuning.
I ask that because, besides taking more of your time and your customers time, it would not drive up the dyno cost due to time of flashing and minimize or eliminate that from the equation.
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that's how i do all of mine. always street tune prior to going to the dyno. you can't really tune for drivability on the dyno effectively (well, you can on a proper load dyno, but it's just way easier and cheaper on the street).
the issue with OFT that concerns me personally is that it requires a map flash between every run. without map switching you can't just load up 4 maps and do 4 back-to-back runs. you have to wait and reflash between each one. if it takes 8 minutes each time like @
nelsmar is saying (which i haven't seen for myself, that seems a bit long to me) then that's over a half hour worth of flashing. in dollars and cents, that's $50 worth of dyno time spent twiddling your thumbs effectively accomplishing nothing.
now if you're doing 10-15+ runs dialing in a car, you can see how this quickly snowballs and could potentially eat up an entire evening. this costs quite a bit of money that comes out of our pockets, and if we were to pass that on to the customer they'd be much better off using something else in terms of OTD cost.
this is a real concern, and one that i also remember being mentioned early on as an area they look to improve. i don't see why asking if there has been any progress on this is in any way 'disingenuous'. it
is disingenuous to tell people that relying on long term fuel trims to hit fueling targets in open loop is a good idea, but that's a whole 'nother topic i don't have the energy to get into right now.