If this engine had any more torque (at least in the Tiburon) the car would be almost undriveable in first gear . The torque steer and wheel spin on dry ashphalt under heavy throttle can be pretty exciting . However i suspect the 2.7 won't be in Hyundais' lineup much longer . With rumours of a new coupe based on the Sonata platform and a new hatch/coupe based on the Accent platform , the gk Tib and the delta v6 might be history . The new 235 hp engine might be the only v6 in the lineup , iron block and chain cam drive .

 

Hi

I don't know if the engine in the Tib & the Tucson are the same, but I'm finding that below 2000 RPM the engine is very weak in my Tucson.

For example...I'm driving at 80kmh and come up to a hill. The vehicle speed just drops off real fast and the trans has to drop a gear to maintain speed.

There's lots of power but none of it is down low in the RPM range.

3000 RPM to 4000 RPM it's pretty good.

4000 RPM to 6000 RPM it's really good.

For a car like the Tiburon thats just great to have a zippy engine, mated to a 6 speed.

The Tucson is like a mini SUV. It's heavier, and has a lot more wind drag on it.
More torque down low to carry and tow all my gear is needed. ( groceries, baby stroller, car seat, booster seat, diaper bag, juice...etc etc etc)



You might be right on the 2.7L getting the axe.
Maybe thats why they havn't spent money on re-engineering the valve train.

I'll bet that market research has shown that most people would prefer a V-6 engine to be over the 3.0L displacement.
3.3L in the Tucson!!! YEA!!! :w00t: LOOK OUT!!!

 

As far i know the 2.7 engine is the same thru the various models . I wouldn't be surprised to see different transaxels , gearing or ecus being used however . Any OEM that expects to survive in the short term had better focus their engine research & development dollars on hybrid technology . A 2.7 hybrid power plant would solve low rpm performance issues on a suv such as the Tuscon . I don't recall seeing anything from Hyundai on hybrid , short term , or hydrogen , long term .

 

well according to edmunds.com next year they are planning on bringing out a hybrid accent , but then again that could change
to date my local dealer has yet to hear of the entourage slated for next yr

 

Entourage ? interesting , i'll have to watch for that . I wonder if they are going to 'copy' existing technology or break new ground .

 

It would be a shame if Hyundai dropped the 2.7L.

There seems to be a growing upscale market for small displacement 6 cyl. engines.

BMW, Lexus, Porsche, Cadillac, Chrysler, Suzuki & Hyundai all have a 6 cyl. with less then 3.0L displacement.

 

:right: Hi

Have you thought about an after market Plug & Play Tuning Module Box? They make them for the 2.0 litre so surely someone makes them for the 2.7 Petrol Model
Have a look on ebay they are supposed to increase lower torque but it may only be possible with a diesel engine (although I am not an expert by any means of the word).

Regards
Geoff

 

More TORQUE

Thats what we all want.

Getting it out a small displacement 6 cyl. must be quite a feat!


Automakers engine.....................Horsepower...................Torque (ft/lbs)

Hyundai..........2.7 L V-6......................173...............................178

Suzuki............2.5 L I-6......................155................................177

BMW...............2.5 L I-6.....................174................................170

Chrysler.........2.7 L V-6....................200.................................190

Lexus..............2.5 L V-6....................204................................185

Cadillac...........2.8 L V-6.....................210...............................194

Porsche...........2.7 L H-6....................240...............................199

The Hyundai engine is pretty close to some of the others when you look at the power output numbers.

Keep in mind that it dosn't have variable valve timming.

If Hyundai drops the 2.7L it will be leaveing a very speacial market.

 

Honestly, the US cars that run the 2.7 really aren't trying to compete with all those cars, exc. Suzuki. The 2.7 is a older engine in the lineup, I'm guessing that its time will be limited and a new smaller V6 with features similar to the 3.3 will take its place

 

Hi

The 2.7L V-6 did compete with those cars. The Sonata had it. And prior to that it was a 2.5L V-6.

Here

The current line up has changed but the 2.7L is still around.

Will it stay???

Will they add CVVT to it. (I hope so)

It looks like Lexus has really put their heads together with their new 2.5L V-6

DOHC, direct ignition system, variable intake runner system, variable valve timming on the intake and exhaust valves, direct fuel injection and port fuel injection.

Love the technology but it's way out of my price range.

From what I've read Hyundai has a dircet injection gas engine, and variable valve timming, and variable intake runner system, etc etc etc.

If they up the technology on the 2.7L and put it into the Sonata as an optional engine then there would be big compition in the "3 series race".

 

Sorry, I wasn't clear before- the engine may be competive power wise, but a Sonata is in a different class than Porsche, Caddy, BMW and Lexus, they're all premium sedans, except Porsche, which is a 2 seater- not much of a family sedan As for Chrysler and Suzuki, I'm not sure offhand what their engines are used in, but those may be a fairer comparison

 

Hi Angelo,

I attach the power/torque for 2.7V6 graph You were asking for...

Definitely You can be sure Hyundai will not drop V6 engines - In their most important foreign market (USA) it is a must to have V6 and V8 engines available.

- You mentioned Your Tucson is weak under 2000RPM - as You can see from the graph, there is below 40kW available in that range. The 2.0 CVVT has about 35kW in this range...

Personally I think the engine enhancements go on continuesly, so they may add CVVT to V6 also.

Kind wishes, Attila

 

Hi and thanks for the graph

Where did you find it?
I've been looking for it on the net, but have had no luck.

I'm sure Hyundai won't drop V-6 engines, but what I'm seeing is that most auto makers are increasing the displacement of thier engines.

There is only a handfull of automakers that build small displacement v-6 engines.

Usually automakers just up the displacement to get higher horse power numbers.

While others (like Lexus and it 2.5 L V-6) will make the engine more effiecent.
More power with the same displacement.

A little math can shows us power / 1000cc of displacement.

Lets compare

BMW 323 series 2.5L I-6-----69.68 HP/1000cc----68.08 ftlbs torque/1000cc

Hyudai Tucson 2.7 L V-6-----65.13 HP/1000cc----67.01 ftlbs torque/1000cc

Lexus IS 250 2.5 L V-6------81.63 HP/1000cc----74.02 ftlbs torque/1000cc

The Hyundai 2.7 L is close in torque to the BMW

 

Hi Angelo,

The graph of all available Hyundai engines can be found - for example- on official Hyundai pages in Czech Republic. http://www.hyundaimotor.cz

You can just browse by modell, then choose 'motor' and You already see the graph. If You need, I can bring You any of the graphs.

There is only a handfull of automakers that build small displacement v-6 engines.

:grin: so 2.7 litre is already small for You - for us in Europe it is a very large engine already - here a typical family car has 1.4 or 1.6 l engine.

Usually automakers just up the displacement to get higher horse power numbers.

Yes fully true. Example: Nissan X-Trail with 4 Cylinder inline 2.5litre engine...

Probably the point is COST - to build a V6 You need 4 overhead camshafts with 24 valves, while for Inline engines only 2 camshafts with 16 valves.

Hovewer the SONG of - and treat to drive a V6 is not comparable to a I4... :whistling:

The Hyundai 2.7 L is close in torque to the BMW

- yes. Actually the V6 has one of the highest Relative Power among Hyundai engines (48 kW per 1000 cc - the same as your value HP/1000cc). Only the 2,4 litre DOHC built in frame of Global Engine Alliance is more strong (used in Sonata, 2359cc, 118,5kW=161hp@5800rpm).


Kind wishes, Attila

 

Ha Ha

Your right.

My perception of a small engine is wrong.

Here in Canada we are greatly influenced by the United States, where bigger is always better.

Most 6 cyl. engines are above 3.0L displacement over here.

But what my point is that the 2.7L could be more effiecent if Hyundai incorporates their CVVT to this engine, and even more so if the incorporate a direct injection and port fuel injection system like Lexus has done with thier 2.5L V-6.

Look at the numbers I calculated.

The 2006 Accent 1.6L now has CVVT and it increased the power by aproximatly 6%. They set up the camshaft timming to increase the high RPM power, but did nothing for the low RPM torque.

 

Look for an updated 2.7 in the future. Believe KIA will also get it in their Magentis/Optima. May appear in next yrs Tiburon and Tucson. Wait and see. Closer to 190 HP?