Etune VS Dyno..WWYD?
 

Car is NA with E85/Flex fuel kit, header and cat back exhaust.

I have a local subaru guy who can dyno tune for 500 bucks.

Car came with EcuTek license and dongle already so etune would just be the price of tune, probably around 350.

I am not tracking this car, just want a reliable but spirited ride.

For only 150 more would a dyno tune provide a better result?

i would dyno tune only a FI car, to find best cam and everything

With NA, i would just trust the cam from OTS, the dyno would find the MBT ignition timing( you reach mbt already at E60 when NA) but you can totally avoid the costs, the differencd is not relevant

You'll get more from the dyno tune, and you'll get your tune done right there vs waiting weeks for the e-tune to be finalized. The e-tune would be fine though

Yes it s true about done quickly, but i still think some road tuning is necessary, you can t replicate everything om the dyno
But for cam and ignition timings maximizing, is Top

Depends on the tuner. I'd rather have a great etune than an average "subie tuner" dyno tune.

E-tune 200$
https://www.xero-limit.com/custom-tune.html

I’d rather have an E-tune from one of the few reputable shops that specializes in this platform and has E-tuned 100+ of these cars with numerous different setups/mods vs a random dyno tune from a shop thats done 10-15 or less.

E-tune vs dyno tune both from a reputable shop the e-tune will be 90% as good for 40-50% the cost. Usually with the E-tune being slightly on the conservative side so should be equally as safe. You just might leave 1-2whp on the table when NA or 5-10 when FI.

I have an etune on my WRX and an OTS on my BRZ. I think they are totally fine for DD and more practical. If you are autox/track and performance counts a bit more then a protune makes sense assuming you have all the mods on the car. No sense doing multiple protunes, unless you got plenty of dough.

Will a custom in-person dyno tune always produce slightly better numbers than an e-tune?

Also, I believe tuners make custom auxiliary functions that run via EcuTek on the ECU which are included in their tunes. These functions change how the tune reacts to various sensor inputs, alter throttle response, etc. Is it safe to say that these auxiliary functions would be much more developed from a tuner that is specific to this platform like Delicious?

you can t generalize. it all depends on time available, experience, and how good it is

With a dyno and some custom maps, you can swing the cams while steadying in the dyno at various fixed rpm to find best cam timings

The quickness depends on various stuff

Then, with petrol and no ethanol, the engine is always knock limited, so a good etune can potentially reach very similar maximum performance as a dyno tune

E85 needs a dyno to find maximum ignition timing, and it helps with FI too
anyway... more time spent = the better the tune

Assuming it’s the same tuner doing both then most likely.

Functionality there is no difference on what is possible between a etune or dyno tune, Besides seeing power numbers, and being able to monitor and change things real time. E-tunes generally err on the side of caution, and help if the customer at least knows some basics about tuning parameters so they don’t drive around on a too aggressive tune or let off if thing’s don’t look good.

If you had two 100% identical cars one dyno tuned, the tuner could technically “E-tune” the second car just using the first cars tune and it would be just as good.

https://www.counterspacegarage.com/c...c-fa20-na-lvl2

I haven't had my BRZ on a dyno for tuning in years; my tuning is 100% electronic. The only dyno time it's spent the past few years is just to see what its making.