General ECU Reflash Information (Please read to get some basic understanding)
DIFFERENT METHODS OF HOW TO GET YOUR VEHICLE TUNED
Stage 1 : 15-20whp+ 15-20lb+ toque peak power gains (MUSTANG DYNO NUMBER ** OUR DYNO READS ABOUT 13%LESS THAN DYNOJET) from bone stock to basic bolt-ons (Intake/exhaust) on 2013+ Genesis Coupe 3.8 V6
** Results may vary (Dyno results was on the BONE STOCK 3.8) **
- What does it exactly do?1. Throttle responseSince Genesis Coupe has E-throttle body that is controlled by sending signals with ECU, there are some delay/hesitations with throttle body. It also has to do with notorious rev hang issues we've seen and experienced especially with automatic tranny. With SFR reflash, we can control the timing and responsiveness of throttle body remapping the logic of the throttle body. Reaction time will be a lot quicker and all the lag that used to be with stock tune will be gone. We don't want it to be too touchy especially for the customers located in East coast where they get snow in winter, so we've put it in the safe range. Going into full throttle (80% opening) is going to be much faster resulting to reach desired RPM faster than stock tune. It also saves gas mileage since car will be more responsive with throttle (with less amount of gas on the foot moves the car... Injection = amount of foot to the gas)2. Unleashing torque management systemThere is a torque management system built into Delphi 3.8 V6 ECU that is limiting the power to the ground (Even with traction control off). It also has to do with traction control/tire pressure sensor that ECU will automatically limit off the power if it detects any loose tractions. We program the torque management system to turn off the traction controll fuly when it's OFF. Traction control will work just like stock when it's ON.3. Advanced timingWe give out timings depends on what octane rate you are running the car. The higher octane you are running with the car, the more aggressive timing we will be given to each flash. Stock sensors/o2 sensors/ECU are very sensitive that slight change in Octane affect very easily. We recommend to stay with flashed octane as always (You can go up but you can't go down on the octane rate) in order to avoid on the misfiring issues. Also note to use legit brand named Gas stations to get octane rate as advertised. Giving more timing will make more power throught the RPM, and the customer definately feel the aggressiveness of power and torque.We recommend one step colder spark plugs for 93+ (octane) tunes (especially the custom tunes)4. Trimming A/F ratio3.8 ECU is targetted A/F ratio map that ECU try to adjust to the A/F ratio we set at. It's little harder to adjust with some aftermarket intakes that bypasses MAF sesnor some air (ex. INJEN) since ECU is not monitoring the right amount of air coming in. However, after all these years of experience we know exact what to give for such modifications/combinations with exhausts and other aftermarket bolt-ons.Giving out more aggressive A/F ratio will generate more power in desired RPM range (or all range) but there is a risk of misfiring or shorten the life of motor. Our canned tune is set at more than safe range. 5. Rev limiter/Top Speed governorWe can only change the rev limiter on Manual tranny cars side TCU takes control on the rev limiters.The usual and proven RPM bump is @ 7200rpm. Neutral RPM rev limiter is still @5000rpm like stock. We can always change this but in case of dealers checking things out with possible alternations, we didn't want to put anything too obvious. Top speed governor will be taken out and there will be no limit to the top speed.- Dyno vs Performance/Drivability gains?Dyno gain on canned tune on 3.8 V6 is about 5-20 rhwp (dyno peak powers)range ONLY. If you break it down some areas (RPM), it would be around 10-40rhwp gains and 20-60lbs of torque.A lot of people are so crazy about making some useless peak powers on the dyno but as we stated above it's all about the drivability gains for 3.8 V6 ECUs.Our canned tune for each octane rate is set at more than safe range of A/F ratio/advanced timing that can be performed right without getting into problems. Giving more aggressive timing or leaning out A/F ratio might yield few more hp but it will not make a big difference and have more chance of getting into problems (ex. Limp mode/misfiring/etc)This is also one of the reasons why we've been suggesting our canned tunes that will increase in overall performance and drivability while it's problem-free.With canned tune, it's already proven by bunch of members to shave at least .5- a second on the quater mile which is hard to believe while gaining only such numbers on the dyno. This proves enough evidence that it's not all about making useless numbers on dyno but tune must be targetted more towards to drivability on 3.8 V6 ECU.- Automatic vs Manual?Performance gains on both tranny would be about the same. Due to increase in response of throttle, people with manual tranny will have to relearn where to engauge the clutch( it should not take long). Once you get the feel of it, throttle is right there. Especially people doing some high skilled drifiting/Touge/time attack should have advantages doing heel n toe/power shifting/etc. Automatics have less chance to mess up on the shifting so advantages on the flash is more towards to the transition on the shifting. Due to throttle response changing gear would be faster/smoother. Going on/off on the throttle will be much faster and responsive. (ex. You had to downshift in order to pass somebody on the highway, now it's just instant foot the pedal and power is right there)We've seen avg of .7 seconds with manual tranny and .5 seconds with auto tranny on quater mile times.- What parts to buy/what mods to do?We have brands and parts to recommend in order to maximize the outcome of the reflash. We've done quite many custom tunes for certain brands and combination. Some wrong modifications such as taking out all catalytic converters will loose power (Your car isn't 80's Honda civic). o2 sensors not only monitors the amount of o2 but the temperature of the cat and etc that if it is not reading right bascially A/F ratio map on ECU that is connected to o2 sensor would also get messed up resulting high risk of running extremely lean or rich. If it runs lean, ECU will pull timings resulting loss of power as well as running rich. So please contact us for any modifications prior or after the ECU flash. We'd be more than welcome to help out selecting parts as well as locating and giving the best pricings as possible. We'd refuse to tune certain cars that have the parts already on the car we aren't really sure about.
- KOREAN POPCORN (Crackle and pop )
Adds aggressive crackle and pop during deceleration letting off the gas pedal around 2-4k RPM at light throttle.
Has no gains as far as the performance goes. Sound will be depended on your exhaust set up.
* OFF ROAD USE ONLY! * ALL SALES ARE FINAL
We don't guarantee anything about Hyundai's warranty with ECU flash.
Get this service/product at your own risk just like any other aftermarket parts you put on.
However, it's not obivously seen or detected compared to any visible mods
such as intake/exhaust/etc.
We always use original stock data pulled then modified to tuned data (if mailed in), so all the calibration data and other ECU functions remains exactly the same as stock
Or you can just switch your untouched stock ECU for dealership visits (if you order pretuned ECU).
As of today 09/08/2015, we've done little over 2500+ Genesis coupes ECU flash
(both 2.0T and 3.8 combined) since July 2010.
We've been getting bunch of positive and "WOW" responses, but feedbacks are all over the places that can't get all of them at one place.
We've been collecting some of feedbacks that we can find and it's here:
(Please read through the initial thoughts and impression that fellow Genesis
owners have experienced)
* Canadian/Puerto Rican versions are also available for purchase.
Please make sure to choose your location when you are ordering!
Any questions please do not hesitate contact us.