VT ECU Tuned Dyno Run Video

[cerebrix]

Found this on youtube just now.

[elecblue06]

nice gains.. looks like it's a low reading dyno.. I doubt it's losing 100 hp to the wheels I mean it's an auto but still.. thats saying the turbo does nothing.. watch the stock video stock it dynoed 116 whp.. so the dyno is wayyyy off lol thats non turbo numbers.. the tuned 1.6 put down the same numbers.. it appears they're maybe having fueling issues up at the top or need to adjust the cam timing as theres a nice dip where it should be making peak hP



those gains are nothing to sneeze at ( I dont believe the fmic couldve been getting heat soaked that quick and causing a power dip.. the non turbo dyno showed the fueling going all over on the top end they didnt map afr on the turbo one) from 116 to 174 .. 58 whp gain is pretty pimp.. thats more then the turbo cobalt which gets awesome gains.. if you figure the car PROBABLY puts down around 180 whp stock assuming a 17% drivetrain loss.. thats 230 whp or more after a tune and fmic.. imagine full bolt ons and tune.. this car could be epic beast

[elecblue06]

their dyno reads really low.. their 2.4L gdi optima puts down 133 whp stock.. thats like 33% drive train loss

[MTD]

Nice find. Never heard of them though.

[HyundaiVeloster]

someone bring it to the states

[UB13VT]

Looks like its bleeding off boost on the top end.

174whp X 12% drivetrain loss from a manual i'm assuming = 194 crank horsepower

If this car modded can put 200 to the wheels i'll be a very happy man

[elecblue06]

Looks like its bleeding off boost on the top end.

174whp X 12% drivetrain loss from a manual i'm assuming = 194 crank horsepower

If this car modded can put 200 to the wheels i'll be a very happy man

it should already be over 200 whp but their dyno sucks.. stock dyno was 116 whp lol well over 200 whp might i add it's probably closer to 230whp

I wish they plotted AFR and boost.. so I could see if it's falling off.. the original dyno posted looked like there was issues. but really it's a small engine with a small turbo.. it wouldn't surprise me if it's falling off.. i'd think tuned/ bolt ons the car will max at round 240-260 whp (based off the 230 number for tune and intercooler) DP will probably give decent gains.. catback probably not much at all.. charge pipes and intake probably wont be too much of a gain either

[only1db]

that little turbo is running at 18psi...and its definitely falling at the top half...probably from about 5500 to 6750....I think though once opened up, both cold and hot sides, will help dramatically.

Hyundai has ALWAYS been conservative on their tunes, just look at the gen coupe...it picks up quite a bit from a tune. I would not get too excited about the video however...the guys over at poweraxel and seouful racing are going to be THE guys to bring this out. Maybe even NGM

[elecblue06]

that little turbo is running at 18psi...and its definitely falling at the top half...probably from about 5500 to 6750....I think though once opened up, both cold and hot sides, will help dramatically.

Hyundai has ALWAYS been conservative on their tunes, just look at the gen coupe...it picks up quite a bit from a tune. I would not get too excited about the video however...the guys over at poweraxel and seouful racing are going to be THE guys to bring this out. Maybe even NGM

i mean if what turbosocks said is true that it's running 10.3 at WOT.. (which is obsurd for a DI engine but fortes were running around the same WOT afr) then a full 1.5-2 points learner pluss timing and boost .. theres no reason a tune wont pull out like 50-60whp

[only1db]

easy! then you put in a CAI and a full turbo back, with some hard charge pipes...you will be doing just fine!

[turbosocks]

i still don't know what to even think of those videos.. I don't know how to compare anything with those way off numbers.

stock o2 is narrowband but it does read 10.2-10.3:1 at WOT which is much richer than it needs to be. If I recall it is a bit richer than it needs to be under cruise conditions also (which could really up the mpgs)

the boost is controlled to fall off after the ~20lb spike. If the fuel maps were leaned up and/or the boost was controlled to be a stable 17lb after the ~20lb spike, this car would be a completely different animal.

4th gear pull to about 120mph.. the pull was ~10 seconds long and the boost spiked around 20lbs and fell to around 13lbs.



next shows high and low values on the gauges from another day.. orange and red 'ticks' = high/low values.

[only1db]

the front 02 is a wideband. Hyundai has been running a wideband on their cars for just about 7 years. I will double check that though.


yes...wideband...reads up to 4 or so volts.

the second 02 sensor is a narrowband but all it does is look a the cat.

[turbosocks]

I will go ahead and sacrifice my good MPG in the name of science and get some better logs today hopefully. I used a different 'gauge' style which more easily shows the high/lows.

On my one 'dash' screen I am logging the following:

Boost, AFR, Air temp, Revs, Intake temp, Fuel Rail pressure, throttle position and horsepower (for funnies)

[turbosocks]

the front 02 is a wideband. Hyundai has been running a wideband on their cars for just about 7 years. I will double check that though.


yes...wideband...reads up to 4 or so volts.

the second 02 sensor is a narrowband but all it does is look a the cat.

really? if so that is awesome.. I just had looked on HMA and only saw the voltage for the 02 went from 0-1v and said.. nvm.. ill get a screenshot..

If that is the case that it is a wideband (usually 0-5v) that would make it very badass.

[turbosocks]

this is under fuel system and heated o2 sensors on HMA.

[elecblue06]

the front 02 is a wideband. Hyundai has been running a wideband on their cars for just about 7 years. I will double check that though.


yes...wideband...reads up to 4 or so volts.

the second 02 sensor is a narrowband but all it does is look a the cat.

this no way you can have a turbo di motor without a stock WB.. so 10.2 at WOT is stupid rich.. 14.6 at cruise is fine

[turbosocks]

this no way you can have a turbo di motor without a stock WB.. so 10.2 at WOT is stupid rich.. 14.6 at cruise is fine

10.2 being stupid rich would explain why you could have a turbo DI motor with a narrowband, haha. keep it conservative and no worries..

I am not quite sure what I recall the cruise being but it could have been leaned up a bit which would in turn make the cruise efficiency over a long trip better.

[elecblue06]

10.2 being stupid rich would explain why you could have a turbo DI motor with a narrowband, haha. keep it conservative and no worries..

I am not quite sure what I recall the cruise being but it could have been leaned up a bit which would in turn make the cruise efficiency over a long trip better.

it wouldnt even read the 10.2 though i'm saying hyundai wouldnt be able to get the car to run reliably with tuning it on narrowband esp since it runs on map.. to run on speed density you need map pressure, and air fuel.. if it were maf based it could fudge it KINDA by fuel trims vs boost and commanded afr

[turbosocks]

hey, im all up for being wrong on this one.. having a stock wideband would make the logging process a lot easier as well as the tuning process.

i am just going based off of what I saw over on HMA. I thought the car would have a wideband and it seemed like it based on the torque app but I didn't see any o2 readings of up to 5v. I can check again today.

[only1db]

you could feasibly tap the signal wire and put it to a gauge...

or just get an AEM and have a nother bung welded in.