Quote:
Originally Posted by aristo
edit: never mind I am going to read the entire romraider site first sry
also may seem silly but wouldn't it be a good idea for people to share their tunes of exact setups? there's probably trust issues or other problems involved I presume?
edit2: also I think it would be nice to know exactly what aftermarket parts were used to mold these 'basemap' tunes to the way they are, like say the OFT team decided to use: x header, y front pipe, z overpipe, x catback to create the "93 octane stage 2 UEL header tune" // or if they simply created the basemap while using just an aftermarket header and stock everything else etc.. (sorry if this is answered somewhere, just a thought)
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Answer Edit 1 :People can share their tunes but you have to trust that the other guy is not a "wombat" and has produced something that is either rubbish or may in fact be dangerous to your engine and is suited to your mods and the ROM is compatible with your car.
Answer Edit 2 :
Talking Naturally Aspirated BRZ/86 and "bolt on mods"
Its fairly proven that Headers (generally catless) produce the most gain and hence require the most "tune changes". Changing the rest of the exhaust ie overpipe/resonator/catback , has little effect on the required tune or power/torque. After the header little hp to be gained it mostly change in noise/rasp level.
Intakes again appear to produce little gain and in general will require you to rescale (or calibrate) the mass air flow sensor to suite the intake . Most aftermarket intakes offer little benefit over just changing your stock filter for a quality drop in filter and maybe modifying snorkel and this wont upset MAF scaling.
Yes a dedicated Dyno tune for your specific mods and fuels may squeeze out a few more hp, but where I live thats about $1200-$1500 plus I pay for updates or changes and I leave with nothing but the "tune" in the car.
As opposed to an OFT and a "base" tune for $500 I get tune & updates thrown in I can change tunes as mods added or removed, E85 tunes are another bonus, I can flash to stock for dealer visits. I have a device to flash tunes and log engine parameters read/clear DTC/CEL codes and I can on-sell it if I move on to something else.
Probably 95% of gain for one third of the cost and I can on-sell it.