2.0t Baseline Dyno Dynojet - free mod gains 13wtq!

[GrimmSpeed]

We took her over to www.maperformance.com today to get a baseline. Results were pretty typical for a baseline... ~185whp and ~200wtq. This was on a Dyno Jet.

We did find a pretty cool way to gain 10-13wtq for free

In the next few days I will post up how exactly we gained thos 13 extra ft lbs.

They guys over at MAPerformance were great and got us in and out very quickly. We recommend them to anyone. Thanks again Jordan!


Video of the 3 pulls. Make sure to watch the 3rd pull.
[youtube]h_IKSb-msuM[/youtube]


Baseline Pulls

Free mod added

Justin

 

[tasteslikeink]

soo.. how about those free mods?

 

[Giostar]

I noticed this alot about this forum. Vendors say there gonna post pics of prototypes or results on numbers but never ever post a single thing when its 2-3 months over due. Whats the deal guys? Its not good business when u leave potential customers hanging around for months at a time when u give us ur "within a week" due dates.

 

[tasteslikeink]

Lol really,.. I want torque and horsepower now!!!! Not months from now, you're gonna make me have to look and if i do that, and find something you're beat.. GET OFF YOUR CHAIRS!! or.. well... in ur computer chairs.. start posting. I'm bored with stock.

 

[Sal Collaziano]

Any updates on this?

 

[Giostar]

Maybe the "free" MOD blew up the car

 

[tasteslikeink]

Maybe the "free" MOD blew up the car

OOOORRRRR!!!! He went back to the future!!! ....The Flux Capacitor was the free mod.. DON'T GO 88MPH!!!

 

[GrimmSpeed]

sorry guys..thought i posted the info up here.


So in our never ending quest to find free mods, Hyundai has yet again kicked butt and deciced to give us an adjustable wastegate actuator. What this does is allow us to change the preload on the wastegate itself, which will allow the car to hold more boost. I was a bit doubtful that it would work on our cars because of the more sophisticated ECUs...i was worried it would still do whatever it needed to do to maintain target boost and thus net no gain. So far so good though, car immediately held more boost and gained torque. Unfortunately the dyno guys didnt have the boost sensor hooked up so we could see the actual before and after psi difference, but the dyno definitely speaks. There is definitely a spike in there but i think that is just from us not resetting the ECU and not giving the car anytime to learn. Hopefully once it learns it will smooth it out.


On to the HowTo

1. Remove Turbo heat shield (3) 10mm Bolts
2. Loosen the 10mm Nut that locks the end of the wastegate actuator arm. Back it up to about the end of the threads.
3. Take off the "C-Clip" with a pliers. Be careful and this will like to fly off while you are taking it off and you dont want to lose this.
4. Lift the "swivel bracket" off of the wastegate flapper door bracket. This is the part that we will be turning to shorten the overall length of the wastegate actuator arm.
5. Turn the "swivel bracket" clockwise, as if you were sitting behind the turbo looking at the front of the car. We turned it 2.5 complete turns but i would suggest turning 1.5 times or so and see how the car responds.
6. Place "Swivel bracket" back on wastegate flapper door bracket.
7. Replace "C-Clip".
8. Tighten 10mm Nut.
9. Replace turbo heat sheild (3) 10mm Bolts.

Justin

 

[Glacial]

Ah, yes, used to do this on the old Turbo Dodges way back in the day. Strange to have to do it on a new car, though -- usually it'd be done because the wastegate spring was old and weak, and would get blown open at high boost. Shortening the rod increases the effective wastegate spring pressure.

Why not just make a MBC for $20 and use that?

Also woot first post. Been lurking here forever, thought I'd step out of the shadows.

 

[akaveli]

Sweet gains for a free mod.

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[DJ_Keith]

Almost identical stock power numbers to our 2.0T coupe. Ours made 189hp/205tq on the Dynojet. Been playing with the car and tuning it with our CMD too. There are some decent gains to be had. Anyone else working on these?

Peak gains of 25hp/56lb-ft of torque with 39hp/61lbs-ft of torque gain at 3300rpm.

 

[kortERHorse_281]

261ftlbs is great, but i have yet to see any "stock turbo" GC make over 230whp.

it's sad. i thought someone by now would be making 290-310whp on the stocker by now.

 

[DJ_Keith]

Still working on this one. It really likes boost. Still peters out on the top, but there is more to be had in the midrange. It's still on the dyno. Also remember this is a BONE STOCK car - stock intake, exhaust, BOV, boost control solenoid, etc.

 

[kortERHorse_281]

222hp @ 23psi.

jeeez. not good.


carlos nice

 

[DJ_Keith]

There just isn't much breath in the stock turbo. Technically, it made 222hp at 16.2psi (boost at peak HP). The torque is where it is because of the 23psi of boost.

 

[kortERHorse_281]

if you were to chop out the dyno graph from 4000rpms to 5500rpms you will see two bad things.

first, the tq curve drops about 60ftlbs. secondly, when that torque is dropping you'd want your car making about 240-255hp to keep the car from falling flat on it's face throughout the midrange. from 4500-5500 the car is flat and only making 210hp while the tq is taking a nose dive.

i still think that this car could be respectably fast at 280hp and 330ftlbs. those are GREAT numbers to have from the stock turbo, but i DO NOT think those are MAXED OUT numbers that we will see from the stock turbo.

seems like there are just way too many restrictions on this car to even bother atempting to make it into a street machine.

and as mentioned in another thread, if this car really DID have the potemntial to be what everyone expected, AMS or HKS or other performance shops would have already gotten this car into the 11's or at least came out with some big numbers. it's been out for 6 months and people are STILL making less than 250hp on the stock turbo.


carlos nice

 

[DJ_Keith]

Carlos, what you might be missing is that if boost remains the same, and RPM goes up, torque will go down as the engine is processing the same amount of air, but doing it at a faster rate. So, once the turbo achieves peak boost, and RPM continues to rise, the torque is going to fall off as peak cylinder pressures drop. The only way to make the torque curve flatter is to make more boost as RPM increases...and the stock turbo won't do it with the car in stock form.

This car peaks at 222hp, never gets to the 240hp you are talking about. Not sure where you got that number from. Remember that this car is completely STOCK other than the CMD piggy back device. Stock intake, stock exhaust, stock turbo, stock air filter...everything. I'm sure there is more in the car if you chose to mod those items as well, but that was not our intended path.

 

[kortERHorse_281]

Carlos, what you might be missing is that if boost remains the same, and RPM goes up, torque will go down as the engine is processing the same amount of air, but doing it at a faster rate. So, once the turbo achieves peak boost, and RPM continues to rise, the torque is going to fall off as peak cylinder pressures drop. The only way to make the torque curve flatter is to make more boost as RPM increases...and the stock turbo won't do it with the car in stock form.

i understand and agree with all of that.

This car peaks at 222hp, never gets to the 240hp you are talking about. Not sure where you got that number from.

i said "...when that torque is dropping you'd want your car making about 240-255hp to keep the car from falling flat..."

Remember that this car is completely STOCK other than the CMD piggy back device. Stock intake, stock exhaust, stock turbo, stock air filter...everything. I'm sure there is more in the car if you chose to mod those items as well, but that was not our intended path.

fair enough. but seeing as this is a "EVO hybrid" you'd expect this thing to make a hell of a lot of power with simple mods. the car peaks at 222hp for a split second, but for most of the power band it's sitting at 210. find a way to get it up to 255hp (when the tq starts falling) and you'll possibly have a high 13 second car.

 

[Glacial]

I don't think you entirely understand how this works. I'm sure if you put this turbo onto an actual EVO motor you'd be looking at the same numbers. It's just how much the stock snail can blow.

PROTIP: Bigger turbos are an easy install.

 

[kortERHorse_281]

PROTIP: Bigger turbos are an easy install.

they sure are, so it's frustrating when this forum is NOT flooded with threads consisting of people syaing "went bigger turbo, now making 340rwhp on dyno"


carlos nice