Quote:
Originally Posted by Clipdat
(Post 1773690)
This thing sounds sweet and like there's no downsides except maybe the price.
|
before everyone just assumes its a perfect product with no risk... be sure to do your own research and weigh the pros and cons. I can think of a few additional pros and cons:
+more power and better tune. I think after you install a tune (any tune) you realize how poorly the factory tune performs in some respects. Most of these aftermarket tunes despite being tuned somewhat conservatively, will make your engine feel stronger and smoother.
-unknown or uncertain long-term effects of running an aftermarket tune and/or E85 fuel. Sure people have been using it with good results, but you just don't know if something will go wrong that we haven't seen yet -- our cars are still relatively new and it's a new engine platform, etc. etc... however small it is, it is still a risk and despite all reasonable precautions there is some chance you might encounter an issue down the road. If a dealership could prove you were using an aftermarket tune that changed timing, fuel, and raised the redline (these are all things a tune typically does), they could use that to deny you coverage should something bad happen to your engine. In other words, you might find yourself paying out of pocket for repairs due to your modifications.
E85 specific considerations:
-Buzz already touched on this but E85 is not available everywhere. Depending on your proximity to the existing E85 stations, you may have to plan driving routes/trips a little more.
-others have recommended more frequent oil changes while running E85. I'm not sure why this is, but I was doing my oil changes at 2x the frequency suggested in the manual anyways even while running 91.
-E85 requires more fuel compared to 91. So your MPG will suffer. I was averaging about 24MPG on 91 now I get about 18-19MPG on E85.
+On the plus side it's cheaper cost than 87 octane gas at the moment.
+and of course it's more power.
Final conclusion: I bought one, and use it, and enjoy it. If someone came to me with a totally stock BRZ/FR-S and said they wanted to spend ~$500 to get more power, I would say get a tune, over buying an exhaust or header. Sure you may get some power, and a nicer sound from exhaust/header but for straight up power it's hard to beat the tune, especially when E85 is an option. Of course if you have $1500+ to spend then sure, get them all. :)
Quote:
Originally Posted by Pwolf
(Post 1773374)
Thought so... There are tuning options that require that right? Wasn't sure if that's an ECU/Vehicle specific thing or based on the tuning device.
|
I think piggyback solutions like UniChip are what you're thinking of... those require hardwiring a module into the ECU harness, but typically not through the OBD2 port. Ecutek and OFT both take more of a software route.