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Hyundai’s New 3.3L Twin-Turbo V6 Engine Specs Leaked

24K views 80 replies 41 participants last post by  huntken 
#1 ·

Hyundai has a new twin-turbo V6 engine in the works.

Expected to power the next-generation Genesis coupe, previewed above in the HND-9 concept, details of the 3.3-liter twin-turbo V6 have leaked onto the Internet.

Engine output will reportedly be rated at 365 hp with 379 lb-ft of torque. Compared to the current 3.8-liter naturally-aspirated 3.8-liter V6 engine, the twin-turbo mill provides 27 more horsepower and 84 lb-ft of torque. It is also expected to be a more fuel efficient engine.
Read more about the Hyundai’s New 3.3L Twin-Turbo V6 Engine Specs Leaked at AutoGuide.com.
 
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#10 ·
No 5.0 in the coupe. The 3.3TT power ratings are preliminary but the key is look at how high the torque is. You add CBE and a mild tune and your at 400. BRT is saying this engine will have big tuning opportunities because they are using 2 tiny turbos.
 
#9 ·
this is killing me... rumor is it won't be out til mid next year though... I don't want to hold on to my 2010 for another year... it'll be worth nothing on trade in by then. At least now I could probably get a decent price with trade in this summer/fall.
 
#12 ·
The most important thing I'm looking for is internal engine specs. Hopefully Hyundai learned by now to that major tuners and enthusiasts alike need beefier internals.
 
#15 ·
With the CAFE standards incrementally increasing each year turbos and electric motor assist are becoming the standard. An auto maker can afford a few flagship cars to have V8 engines a lot of the standard is based on the vehicles size. The Gen sedan fits in the large car class and has more room for its MPG ratings. The Gen Coupe does not fit in that class so putting that same V8 in that car will blow out the target MPG.

It's all based on the average of all the cars they sell so fortunatly Hyundai has enough high MPG cars to offset the higher ouput cars. It's a balancing game.
 
#16 ·
Its kind of discouraging though that every generation Gencoupe has totally different engines. I love my 2013 3.8, and the sole purpose for my purchase was for the upgraded NA motor, but now that this motor came out im kinda at odds about it. There really isn't any aftermarket options out there for the 3.8 direct injected motor and now that this new engine is out i feel that the the 2nd gen Coupe disappear from the aftermarket marketplace .
 
#17 ·
Kind of like the non-GDI 3.8 did. This is the main problem with Hyundai to me... always updating (which is good) and completely changing things like, I don't know... the engine! It sure makes it hard to attract vendors when they only get a couple of years to develop product and sell it with the hopes of making any profit. Then everything changes and it's back to the drawing board.

That being said, I actually really like the idea of a twin turbo set up as it should be easy to upgrade and make massive power. Of course I also hope they have the 5.0 Tau option. :grin:
 
#20 ·
It doesn't seem off based on the speculation on how small the turbos are and the fact that there are two of them. A flat torque curve like that doesn't surprise me but what does surprise me is having 380 ft-lb available at 1250 RPM. Must be some beefy rods to handle that onset of torque and it's final value.
 
#23 · (Edited)
"My Bet is they have this majorly down tuned for fuel efficiency."

+1

"No 5.0 in the coupe"
Did you read this?: "Rumors continue to surface that the next-generation Genesis Coupe will make use of this engine as well as the brand’s 5.0-liter V8 with as much as 450 hp on tap."
Yes, it's a rumor, but I would not be surprised to see Hyundai slip it in as a world-beater. My concern is that the twin turbo 6 and the 8 will BOTH be very expensive, and possibly more $$ than a Z-car! Hyundai has been the Affordable sport coupe, but that distinction could go down the toilette.
 
#25 ·
Yes, it's a rumor, but I would not be surprised to see Hyundai slip it in as a world-beater. My concern is that the twin turbo 6 and the 8 will BOTH be very expensive, and possibly more $$ than a Z-car! Hyundai has been the Affordable sport coupe, but that distinction could go down the toilette.
This is why as much as I wanna switch from my 2010 2.0T to the V6TT when it becomes available that I don't think it'll be happening. I have a hard time seeing an R-Spec V6TT version coming out that has limited interior options, but all the performance options (like the current R-Specs) coming in around $35,000 before taxes.
 
#24 ·
Noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Edit: also, why is BTR's logo on there!!!!!!!! STOP THE MIND****ERY!!!!!
 
#26 ·
I understand what you mean, but what doesn't seem quite right is the fact the torque curve has a sudden and drastic drop when when I've typically seen a steady decrease as RPM increases. It doesn't stay exactly the same and then just drop to nothing.
 
#30 ·
How so? That is a stock tune, I would expect at least 20% gain in hp and torque with a tune. You are talking in the ballpark of 440hp/455tq.

Even a stock 3.3tt would dust a 3.8 by quite a bit. It has about 100tq over the 3.8 and holds it much better in the rpm band.

Torque wins races, hp sells cars.
 
#29 ·
Granted, with how close the horsepower is, the NA V6 does not even come close to the amount torque the V6TT is providing. However, because the general audience would probably be looking at HP, I wonder if Hyundai will just drop the NA V6 for the V6TT and then a V8 as the other option.
 
#31 ·
Its novice to get bent out of shape about a HP rating that is strictly on an engine that has not even been placed in a car yet. Look at the size of the turbos and its understandable. What's important is the torque and that engine has considerably more.
A factory twin turbo setup has considerably more potential then an NA engine of similar size. you might be able to get another 20-50 horsepower out of the stock 3.8 engine without nitrous or a major rebuild. A simple tune on the twin turbo setup will put you in the 400 horsepower range easily.
 
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