I have a 2.4L Optima LX. I saw on the Shark Racing website that they now offer ECU tuning and a larger throttle body. I was wondering if anyone has gone this route yet? I was contemplating on buying an ECU from eBay off another 2015 for them to tune for me.
i would be interested on how they are achieving this as well. is this gain under the curve or is it out of the usable range. i know that in my chevy truck they were able to "gain " power by deleting the torque management system. basically it would pull timing right of idle. It wants a list of mods too so the 15 hp might be if you have intake and full exhaust.
ok so i emailed them to see how they achieved these numbers and if there was a dyno sheet. here was the response i got "the trans program is not touched, as that is governed by the TCU, which is a separate module. we adjust the usual suspects as far as tuning go's, air/fuel ratio, spark timing , raise the speed limiter if there is one, ect. we currently do not have dyno sheets available. "
They are pushing the big bore throttle body with this but the stock one should be more then enough to build real power. I'm also afraid to flatten the low end torque curve with it. I was hoping for some sort of proof of the gains.
I'd have to agree with b2bomber on this one, and I'm coming from the Honda side of tuning in the past as well as present. I'm able to get 20+hp (per dyno numbers) on my H22 (Prelude) with bolt ons and some a/f remapping. Using Hondata or some kind of piggyback system could even give more gains.
Compared to Hondas, it seems like alot more uncharted territory on tuning for Kias, as they are more recent when it comes to tuning and getting the most out of a motor. Without dyno sheets (seriously?!) or any objective data to support it, I'd wave the BS flag on Shark's claims.
There is a SeoulfulRacing dyno video from 2012 that shows a 2.4L Sonata gaining between 6-12hp in parts of the graph on 87 I believe. Seems possible but with there was data.
These guys are talking engines with vtec that can be tuned to come on a lot earlier and stay on longer. Also these engines where not tuned from the factory to the extent that current engines are. You could have vtec kick in harder just by going to the shorter oil filter which increased oil pressure. These are two different beasts