2015 5.0 Ultimate vs 2013 5.0 Rspec performance

[Midnightsun]

Maybe I am missing something. Based on the first two items, the 2015 V8 has gained 80 additional pounds compared to the 2015 V6 (since there is a 221 lb difference in the engine alone). Possible explanations of the 80 lbs are:

• Wider rims and tires on the V8 (both front and rear, but especially rear). Not only are the V8 rims wider they appear to be beefier.
• Larger brakes on the V8.
• Heavier suspension parts in the V8.
• Misc items related to extra electronic features.

I think you pretty much nailed it.

 

[ksoze]

Maybe I am missing something. Based on the first two items, the 2015 V8 has gained 80 additional pounds compared to the 2015 V6 (since there is a 221 lb difference in the engine alone). Possible explanations of the 80 lbs are:

• Wider rims and tires on the V8 (both front and rear, but especially rear). Not only are the V8 rims wider they appear to be beefier.
• Larger brakes on the V8.
• Heavier suspension parts in the V8.
• Misc items related to extra electronic features.

I corrected the 2015 V8 and V6 weight difference in the post - it was much higher at 403 lbs. That makes the additional V8 weight the 182 lb figure, not the 80 lbs. you noted.

 

[italiabrain]

i'm trying to figure out where the extra 300 lbs comes from. the base 2015 3.8 is only about 100 lbs heavier than the base 2014 3.8 despite having more equipment, sound insulation, etc. so that leaves 200 lbs unaccounted for when comparing a fully loaded Rspec and a fully loaded ultimate 5.0. maybe the panoramic moonroof and the adjustable suspension add about 150 lbs (I'm just speculating). does the Rspec have a staggered wheel/tire setup? the bigger rear tires/wheels (if they're bigger) might add a little weight as well. the second ventilated seat and additional power settings on the passenger seat? the power trunk? there might be additional or heavier safety hardware with the fancier cruise and lane assist, CO2 monitor as well as the HUD. maybe the real wood is heavier than the plastic (but doesn't the Rspec have real wood?). different size spare tire? besides that, I have no idea.

It has a new chassis. Check out the crash test videos. It's absolutely insane how well it stands up to the small offset.

Edit: My fault, I misunderstood which comparison you were making.

 

[akuma]

To summarize this weight changes:

• The 2014 V8 and V6 models had a 221 lbs difference.
• The 2015 V8 and V6 (RWD) models now have a 403 lbs difference
• The V6 version gained 119 lbs from 2014 to 2015.
• The V8 version gained 301 lbs from 2014 to 2015

So....the 2015 V8 specific features have added 182 lbs of extra weight above what the 2015 V6 added from 2014 to 2015. This weight does NOT include new HS steel, sound insulation, electronics, body changes, etc, which are the same on both 2015 cars. Engine weight should not have changed on either as the changes were mostly mapping.

which trims are you comparing? base V8 and base V6? or ultimate V8 and ultimate V6? AWD V8 (the Canadian V8 is 4677 lbs or only 89 lbs heavier than the American RWD V8 despite also having heated rear seats, heated steering wheel and headlight washers when just the AWD system is supposed to weigh at least 120 lbs) and AWD V6? because the base V6 doesn't have a panoramic moonroof. none of the previous Genesi had it either. it also only has 7 speakers compared to 14 or 17 with probably a smaller amplifier and smaller if any subwoofer. none of the V6s have FOG LIGHTS. they must each way 50 lbs. the tech and ultimate package also have better seats with more adjustments, cushioning, extensions, bolstering and ventilation for both driver and passenger. they also have power sunshade, power tilt/telescope steering wheel and all the driver safety gadgets. i'm wondering how much weight the adjustable suspension adds because it is also a V8 exclusive (but only ultimate package).

i also remember when the original Genesis came out, the base V6 had "class" (whatever class that is) leading weight at 3748 lbs and the base V8 was barely over 4000 lbs (4012). i don't know what standard equipment they added to the base 2014 V6 (4019 lbs) Genesis but it's almost 300 lbs heavier than the base 2009 V6 Genesis and even heavier than the base 2009 V8.

again, i'm more perplexed by the 300+ lb weight gain from the Ultimate V8 over the Rspec (both fully loaded versions), not the 403 lb weight gain from the V8 and the (presumably) base V6. the $12,000+ difference between the two includes a lot of equipment.

 

[Mark_888]

i also remember when the original Genesis came out, the base V6 had "class" (whatever class that is) leading weight at 3748 lbs and the base V8 was barely over 4000 lbs (4012). i don't know what standard equipment they added to the base 2014 V6 (4019 lbs) Genesis but it's almost 300 lbs heavier than the base 2009 V6 Genesis and even heavier than the base 2009 V8.

I guess it would nice if we had weights for each model year, since there have been several changes over the years.

Here are "some" of the feature changes for V6 over the years. Not sure whether all of these increased the weight:

• 2009-2011 V6 used a Aisin 6-speed transmission. 2012+ uses a Hyundai 8-speed for the V6.
• 2014 Base Trim has 18" wheels. 2009-2013 Base Trim had 17" wheels.
• Suspension changes in 2012.
• Electro-Hydraulic Power Steering (EHPS) standard in 2014 V6 models (prior to that it was Hydraulic). V8 has always used EHPS.

 

[Midnightsun]

again, i'm more perplexed by the 300+ lb weight gain from the Ultimate V8 over the Rspec (both fully loaded versions)

These are 2 completely different cars apart from the Hyundai emblem on the back side. Why would the weights compare?

 

[ksoze]

These are 2 completely different cars apart from the Hyundai emblem on the back side. Why would the weights compare?

Because the V6 only gained 119 lbs year to year.

 

[ksoze]

which trims are you comparing? base V8 and base V6? or ultimate V8 and ultimate V6?

The weights given on the Hyundai web site under Specifications and also noted by various reviews. If we assume they are base model weights since no others are listed, then the V8 Ultimate is even heavier than listed.

 

[Midnightsun]

I would not get my panties in a knot over these weights as they are different everywhere you look. In fact it would be impossible to have the same weight to the pound in various trims of the V6 yet they are identical in all trims. Even from one official Hyundai listing to the next they vary so take these with a grain of salt IMHO.

 

[pusaterkm]

Only one way to know for sure. Go to the local track and rip off a few 1/4 mile runs.

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[ksoze]

I would not get my panties in a knot over these weights as they are different everywhere you look. In fact it would be impossible to have the same weight to the pound in various trims of the V6 yet they are identical in all trims. Even from one official Hyundai listing to the next they vary so take these with a grain of salt IMHO.

Don't wear panties, but do become intrigued when a car ballons up in weight faster than a college freshman. The 2015 V8 has picked up substantially more weight than the V6 year over year and the source for that added weight (180 lbs.) over the V6's smaller gain is not clear.

 

[Alwaysforward]

A sheet of 36" x 96 x .030 thick sheet metal of lets say HS188 material weighs in 33.59 lbs. That same sheet at .050 thick weighs 55.98 lbs. By simply increasing the material thickness through out that car can have substantial increase in weight.

 

[akuma]

I guess it would nice if we had weights for each model year, since there have been several changes over the years.

Here are "some" of the feature changes for V6 over the years. Not sure whether all of these increased the weight:

• 2009-2011 V6 used a Aisin 6-speed transmission. 2012+ uses a Hyundai 8-speed for the V6.
• 2014 Base Trim has 18" wheels. 2009-2013 Base Trim had 17" wheels.
• Suspension changes in 2012.
• Electro-Hydraulic Power Steering (EHPS) standard in 2014 V6 models (prior to that it was Hydraulic). V8 has always used EHPS.

what is also interesting is that according to Edmunds specs for each model year is that the 2014 Genesi gained almost 200 lbs across the board. the 2013 Rspec is 4046 lbs and the 2014 Rspec is 4240 lbs. the 2013 base 3.8 is 3824 lbs and the 2014 base 3.8 is 4019 lbs. they must have recertified the weights or something because there were no major changes (even reinforcing the front end for offset crash testing) that could cause such a weight increase.

 

[Mark_888]

what is also interesting is that according to Edmunds specs for each model year is that the 2014 Genesi gained almost 200 lbs across the board. the 2013 Rspec is 4046 lbs and the 2014 Rspec is 4240 lbs. the 2013 base 3.8 is 3824 lbs and the 2014 base 3.8 is 4019 lbs. they must have recertified the weights or something because there were no major changes (even reinforcing the front end for offset crash testing) that could cause such a weight increase.

One change I know of is that 3.8 Base now has 18" wheels in 2014, instead of 17" previously.

 

[ksoze]

A sheet of 36" x 96 x .030 thick sheet metal of lets say HS188 material weighs in 33.59 lbs. That same sheet at .050 thick weighs 55.98 lbs. By simply increasing the material thickness through out that car can have substantial increase in weight.

That is across all 2015 models which is understood, it does not explain the V8's more substantial weight gain - it has the same steel as the V6..

 

[Mark_888]

That is across all 2015 models which is understood, it does not explain the V8's more substantial weight gain - it has the same steel as the V6..

Some parts are aluminum, including the hood.

 

[gameday22]

Only one way to know for sure. Go to the local track and rip off a few 1/4 mile runs.

Road & Track test 5.0 Ultimate:

0-60 MPH 5.2 sec
QUARTER MILE 13.7 sec @ 104.1 mph
BRAKING, 60-0 MPH 116 ft


With a couple of mods you can have her back under 5 seconds, hopefully there will be a good selection of aftermarket performance parts. She might be slower, but the V8 will still plant you firmly in the seat under hard acceleration.

 

[Midnightsun]

Road & Track test 5.0 Ultimate:

0-60 MPH 5.2 sec
QUARTER MILE 13.7 sec @ 104.1 mph
BRAKING, 60-0 MPH 116 ft


With a couple of mods you can have her back under 5 seconds, hopefully there will be a good selection of aftermarket performance parts. She might be slower, but the V8 will still plant you firmly in the seat under hard acceleration.

Just put a little water down and the new will be faster off the line with AWD.

I guess it all depends on whos numbers you are using. This is kinda like the weight thing where everyone says a different number. I say lets go by Road & Track since they did the numbers above. We all know the fastest ones were from 2012 on right? Here is the R&T test for the 5.0 2012 which does show .1 seconds slower 0-60 if you compare to the 2015 but the 2015 is faster in the 1/4 mile and speed at this distance. The numbers are so close I do not think they are even worth mentioning. Braking has been substantially improve by a huge 49'.

http://www.caranddriver.com/reviews/hyundai-genesis-r-spec-50-sedan-test-review

 

[akuma]

Just put a little water down and the new will be faster off the line with AWD.

I guess it all depends on whos numbers you are using. This is kinda like the weight thing where everyone says a different number. I say lets go by Road & Track since they did the numbers above. We all know the fastest ones were from 2012 on right? Here is the R&T test for the 5.0 2012 which does show .1 seconds slower 0-60 if you compare to the 2015 but the 2015 is faster in the 1/4 mile and speed at this distance. The numbers are so close I do not think they are even worth mentioning. Braking has been substantially improve by a huge 49'.

http://www.caranddriver.com/reviews/hyundai-genesis-r-spec-50-sedan-test-review

C/D uses 70-0 braking, not 60-0 braking, so their numbers will be much longer, which in this case hasn't really been improved.

 

[gameday22]

Just put a little water down and the new will be faster off the line with AWD.

I guess it all depends on whos numbers you are using. This is kinda like the weight thing where everyone says a different number. I say lets go by Road & Track since they did the numbers above. We all know the fastest ones were from 2012 on right? Here is the R&T test for the 5.0 2012 which does show .1 seconds slower 0-60 if you compare to the 2015 but the 2015 is faster in the 1/4 mile and speed at this distance. The numbers are so close I do not think they are even worth mentioning. Braking has been substantially improve by a huge 49'.

http://www.caranddriver.com/reviews/hyundai-genesis-r-spec-50-sedan-test-review

2013 RSpec Motor Trend:

0-60 MPH 4.8 sec
QUARTER MILE 13.3 sec @ 107.1 mph
BRAKING, 60-0 MPH 109 ft