• Oct 31, 2010
Hyundai Sonata and Sonata Turbo hit the dyno – Click above to watch video after the jump

Inside Line put the Hyundai Sonata 2.0T on a dyno to see how much gumption the wheels were actually getting from the flywheel. Not uncommon for Hyundai, there are two sets of numbers to deal with in the beginning: the 2.0T is rated at 274 horsepower and 269 lb-ft on 87 octane, but IL was told that it could get ten more horses from 93 octane. Using 91 octane, the site figured it has about another six to eight ponies in the bag.

Having registered 234 peak hp at 6,100 rpm and 239 lb-ft at 3,500 rpm, driveline losses counted for a 20-percent drain in horsepower (from 280) and about 12 percent of torque. By comparison, when the non-turbo Sonata was tested, the percentage losses were slightly lower in both categories.

The turbo was praised for its consistent pulls and real-world acceleration (especially under partial throttle), as well as seamless boost anywhere in the rev range. Nevertheless, Inside Line's Jason Kavanagh wonders, "I'm curious as to where a few ponies wandered off." Follow the jump to watch the dyno test.



Photos copyright ©2010 Zach Bowman / AOL

[Source: Inside Line]



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    • 1 Second Ago
  • 52 Comments
      • 4 Years Ago
      Imagine this engine in Gen Coupe
        • 4 Years Ago
        This is what the Genesis Coupe should have had.
        • 4 Years Ago
        @Mike

        This is very interesting, seeing as there is a 430 rwhp 2.0T Genesis Coupe on stock internals floating around the forums as well. I may agree that the large amounts of torque in the low end is what Hyundai was worried about, both on internals and clutch.

        That said, the copious amount of pages on the forums might have directed you to a much more logical explanation...

        3.8L V6 = 306hp
        2.0T = 280hp and thousands less

        This reminds me of the 1.8T vs VR6 wars in the VW / Audi scene 10 years ago. When you have the base model with a turbo that is easily upgraded up against a smooth performing V6. Heck for $500 your turbo engine will quickly surpass the V6!!
        • 4 Years Ago
        It's really inexplicable why that motor is not in the GC.
        • 4 Years Ago
        Simple, the Gen Coupe has a V6 to run comparable to the Infiniti G37, which is was obviously designed after, and designed to compete against. There's a lot of idiot consumers that don't know what exactly they're looking at, and say "Oh 6 cylinders is more than 4.. what's a turbo mean?" Also from a marketing standpoint, it wouldn't make alot of business sense to have one model that's probably substantially less MSRP, but only had 30 less horse.

        That said, I'm with all of you, when we have 276HP in the Sonata 2.0T and only 200HP in the Gen Coupe 2.0T, something's up. Although, if the Sonata had a 6MT, I would had driven one to see how well it stacks against my 350Z. I'm a manual-snob. No bueno I guess lol.
        • 4 Years Ago
        updated Gen Coupe v6 DI should have 350-360hp. i bet it will happen for 2012 model year.
        • 4 Years Ago
        Gen Coupe doesn't have this engine because they wanted to rush the Genesis coupe to the market.

        This engine wasn't ready. They had to "down-tune" the engine because the internals weren't strong enough. (This is in the Gen coupe forums).

        The Sonata Turbo internals are upgraded to handle this HP.


        My insurance company also hits for HP/Wt ratio. ($38 per year).

        @Flashpoint:
        The GTI shouldn't get hit with HP/Wt because the thing is a pig for hp/wt ratio:

        GTI - 3,034 lbs - 200 hp = 15.17 lbs/hp.
        Sonata Turbo 3,300 lbs - 274hp = 12.04 lbs/hp.
        BMW 335 - 3600 lbs - 300hp = 12lbs / hp.
        Toyota Camry V6 - 3500lbs - 268hp = 13.06 lbs /hp.
        Mazdaspeed 3 - 3250lbs - 270hp = 12.04 lbs /hp.
        *These are all estimates off the top of my head but should be damn close.

        GTI's have higher insurance rates because obviously the insurance companies have done studies and the drivers of GTI's seem to cause more accidents / get more tickets / or be more expensive to repair in fender benders. Or a combination of the above.

        They are clearly not the quickest etc of the cars in their price range nor do they have the best ratios, but yet they have some of the highest insurance rates.
        • 4 Years Ago
        Put alot of HP in a small car and you're looking at some hefty insurance prices. Try getting a quote for a GTI and you'll see what I mean.
      • 4 Years Ago
      2.0L Turbo: 1.0 - (234/274) = 15% power lost.
      2.0L Turbo: 1.0 - (239/269) = 11% torque lost.
      2.4L GLS: 1.0 - (167/198) = 16% power lost.
      2.4L GLS: 1.0 - (169/184) = 8% torque lost.

      • 4 Years Ago
      One of the biggest things about dyno'ing a car is not just peak HP and torque, but getting to see the curve itself.

      Why no shots of that?

      Hell, I rather have an engine that has a flat ass curve, but with a lower peak, than one that is gutless in the lower RPMs but then peaks higher, 50 RPMs shy of redline.
      • 4 Years Ago
      Uhh, so (1- (234/280)) x 100% = 16.4 percent down.....

      Last time I checked 16 doesn't round up to 20.
        • 4 Years Ago
        He probably divided by 234 instead of 280. (280-234)/234 = 20%
      • 4 Years Ago
      was that a fourth gear pull
      • 4 Years Ago
      Once Hyundai's start getting better resale value they will be a force to reckon with
        • 4 Years Ago
        it will be interesting to see how well their new lineup holds up...especially these 2.0T's. Hyundai and Ford are doing things right lately
      • 4 Years Ago
      It still has power going to the wrong wheels. And if the (I assume) e-throttle programming is anything like the Genesis Coupe, they still have work to do. In the meantime I will be watching and waiting for them to get things sorted.
      • 4 Years Ago
      Bah, I definitely would hate the automatic trans programming. Strong distaste for all autos that upshift at or before redline.

      A 5AT Honda Fit will bounce off the revlimter if you want it to...

      But then again... I still prefer manuals.
        • 4 Years Ago
        I prefer both.
        Auto upshift if the traction control is left on, otherwise use throttle by wire to hold the engine speed constant.
      • 4 Years Ago
      Great. Another company jumps on the DRL bandwagon. I hate those things.
        • 4 Years Ago
        It's the 80% of the high beams that are so annoying. More than once I've been at a left turn at an intersection, and a Lexus RX or a BMW 3 series is turning across from me. The glare of the lights is, in my opinion, more of a danger than a safety implementation. I don't mind the low-beam DRLs (though I still think it should be a choice, as it legally is a choice still here in the states) such as the older VWs or Volvos, but the high-beam DRL's create a dangerous annoyance to me. YMMV.
        • 4 Years Ago
        Anything that increases safety while not adding a huge amount of weight is fine with me.

        Up here in Canada, they've been law for years, and you can DEFINITELY notice the difference vs. a vehicle that does not have DRL.
        • 4 Years Ago
        DRLs decrease safety, especially extremely bad designs, ala high beam DRLs.
        http://lightsout.org/
        • 4 Years Ago
        I don't get it. What's your aversion to DRL? Care to elaborate on why you don't like them?
      • 4 Years Ago
      OMFG


      BEST DNYO I EVER SEEN !!! Do you hear that engine ?? OMFG I want a Sonata so bad now jesus christ BEST CAR EVER MADE.
      • 4 Years Ago
      Love the sheer style of that video. Fascinating !
      • 4 Years Ago
      Also, what happened to the GLS at 5000rpm? It almost paused (1:02) before continuing and you can make out a big jog in the curve on the screen near the end of the video.
        • 4 Years Ago
        It is the torque converter lockup clutch engaging.
        The engine/transmission work together. So the engine's torque output is reduced while the clutch is engaging.
        Considering how decent the 2.4 engine's torque output is, the converter should be locked up by 3,000 rpm.
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