Accelleration in the v8 vs v6 - Page 8 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Engine Performance/Intakes/Exhausts

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #85  
Old 11-01-2011, 03:07 PM
Member
 
Join Date: Jul 2011
Posts: 235
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 2286
Terminator2 is on a distinguished road
Re: Accelleration in the v8 vs v6

Quote:
Originally Posted by bilex View Post
Ok, and what about V6? Maybe that one is a little bit faster too?

And bigpanda - in Poland Overland V6 costs around 75 000$
Overland V8 - 87 000$

I want to live in US!
Maybe. In reality no matter what raw numbers magazines come up with due to different testing variables the difference in 0-60 between the V-6 and V-8 of the same trim, 4x4, etc if tested together is about 1.5 seconds 0-60 and about 1.3 seconds in quarter mile. The V6 I drove took around 8 seconds 0-60 which is not terrible but I felt like it was always a gear high even in 1st gear. IMO the V6 would be far better if it was re geared with a lower ratio. It just lacks the low end torque that the V8 has for normal driving. I felt like I needed to flog the V6 a lot more to pull out into traffic.
As for the CRD model I have seen a few videos of a WK2 CRD on youtube that show them going 0-60 in around 7.5-8.0 seconds. The diesels always feel quick due to low end torque and lots of shifting but the reality is the CRD has to get into 3rd gear just to make 60 MPH so although it pulls nicely it is really RPM and overall HP limited so it has to shift twice just to get to 60 which always costs time.

Perfect example I have at home. I have a 2004 6.0 powerstroke diesel F-350 4X4 and a 2008 6.8 V-10 gas F-250 4X4. Both weigh within 200 lbs of each other due to the 2008 having a much heavier frame. Both have the same 5 speed auto and both have about the same FD ratio if you account for tire size. The Diesel specs out at 325 hp and 575 trq and V-10 362 HP and 457 trq. Which one is faster? Well we did race them one day and the V-10 won every time despite its 100 ft/lbs trq disadvantage. Which ones feels faster when you drive them both? The diesel because the butt dyno feels the extra torque and when it is shifting every 2 seconds it seems to be accelerating faster but it has to get well into 3rd gear to get to 60MPH and tops out around a 100 MPH due to RPM and drag limits. Which one gets better fuel mileage? The diesel by 1.5-2.0 MPG but add the fact that diesel costs 10% more per gallon and you have a wash a far as operating costs.

Reply With Quote
Sponsored Links
Advertisement
 
  #86  
Old 11-01-2011, 04:27 PM
bilex's Avatar
Member
My Jeep: 2012 3.0L WK2
 
Join Date: Oct 2011
Location: Warsaw, Poland
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2018
bilex is on a distinguished road
Re: Accelleration in the v8 vs v6

That was useful. Thanks!
I'm still not sure which would be better for me.
The v8 due to high gas prices is out of question.
I've never had a diesel before so I really don't know what to expect.
V6 seems slow and indeed the gearbox isn't helping. (I've only tested this one)
Now I'm driving 230 HP Subaru Impreza WRX MT and same engine Forester AT, so I'm affraid that acceleration will be the main issue...

I know that SRT better suits me :-) And it isn't its price that scares me. It's fuel consumption. I have 11 km from home to work. Sometimes I have to drive to the center of the city where traffic is terrible...

Short distances, heavy traffic...

Oh... And once a year I take my family to Italy (3000 km both ways)

So... I don't know what to choose...neverless I like Jeep very much...
Reply With Quote
  #87  
Old 11-02-2011, 07:42 AM
Member
My Jeep: 2012 3.6L WK2
 
Join Date: Sep 2011
Location: Cherry Valley, IL
Posts: 346
Thanks: 0
Thanked 7 Times in 5 Posts
Rep Power: 5469
brandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond reputebrandont has a reputation beyond repute
Re: Accelleration in the v8 vs v6

Quote:
Originally Posted by bilex View Post
I know that SRT better suits me :-) And it isn't its price that scares me. It's fuel consumption. I have 11 km from home to work. Sometimes I have to drive to the center of the city where traffic is terrible...
I also cringed at the MPG of the V8 (and bought the V6, btw) - however ask yourself this... How much will the MPG difference cost you? With an 11km commute you drive about the same distance as me. So total around 8k miles per year - maybe 10k mi with a long trip in there somewhere. 3 or 4 mpg was only going to amount to $250-300 per year. Less than 1 extra car payment. Of course that depends on how much gas is where you live - but do the math and see if the difference in actual cost matters to you.

So some of you are thinking - why did I get the V6? Personally, I simply couldn't stomach seeing the numbers I would be getting with the 8 - even knowing the dollars wouldn't amount to much.
Reply With Quote
  #88  
Old 11-02-2011, 09:51 AM
bilex's Avatar
Member
My Jeep: 2012 3.0L WK2
 
Join Date: Oct 2011
Location: Warsaw, Poland
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2018
bilex is on a distinguished road
Re: Accelleration in the v8 vs v6

It's not that easy.
1 liter of 95 uleaded fuel costs here around 1,66$
Quick math: it's 6$ per galon. Am I right?

A big difference when you have to pay 8$ more for every 100 km you make.
That means 96$ more... monthly...
Reply With Quote
  #89  
Old 11-02-2011, 11:08 AM
Deserthucker's Avatar
Premium Member
My Jeep: 2011 5.7L WK2
 
Join Date: Mar 2011
Location: Kalgoorlie WA
Posts: 912
Thanks: 8
Thanked 29 Times in 27 Posts
Rep Power: 3097
Deserthucker has a reputation beyond reputeDeserthucker has a reputation beyond repute
Re: Accelleration in the v8 vs v6

12l/100km = $19.92 V8
10l/100km = $16.60 v6
$3.32/100km
24000km/year
240x$3.32
$796.8/year more.
This would be the worst case scenario for me.
I do mostly HWY miles and getting better than 11.5/100km
To me a small sacrifice to have the comfort, power and smoothness of the V8.
Pure luxury.
__________________

Ordered WK2 Overland, Mineral Grey (was Blackberry) Hopefully. 18th March 2011
ETA late June now late September
Got it 9th September
Australian Outback
Reply With Quote
  #90  
Old 11-02-2011, 01:29 PM
bilex's Avatar
Member
My Jeep: 2012 3.0L WK2
 
Join Date: Oct 2011
Location: Warsaw, Poland
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2018
bilex is on a distinguished road
Re: Accelleration in the v8 vs v6

Highways... Highways... Yes I've heard of that...somewhere... :-p
Reply With Quote
  #91  
Old 11-06-2011, 08:13 PM
Member
 
Join Date: Dec 2010
Posts: 49
Thanks: 0
Thanked 2 Times in 1 Post
Rep Power: 2302
Gearhead is on a distinguished road
Re: Accelleration in the v8 vs v6

Picked up my '12 Limited V6 3 weeks ago. I wanted the Hemi but, just like Brandont, couldn't live with mid-teens MPG average. Emotional choice, not objective, but that's how I'm wired. Anyway what I've concluded is the V6 is a fine engine. The 5 speed not so much in fully automatic mode. Sport is a little better but still is reluctant to downshift. However the ERS manumatic is the best I've driven. I find the ERS engaging and it gets the most out of the 6. Shifts are smooth, instantaneous and super convenient. If you want to set it and forget it pass on the V6 until the 8 speed comes out but if you like a little direct involvement in your drive I think you'll be impressed.
Reply With Quote
  #92  
Old 11-17-2011, 02:55 AM
Gota's Avatar
New Member
My Jeep: 2011 3.0L WK2
 
Join Date: Nov 2011
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Gota is on a distinguished road
Send a message via ICQ to Gota
Re: Accleration in the v8 vs v6

Quote:
Originally Posted by Richpearl View Post
James Healey just reviewed a Pentastar/8-speed Dodge in his USA Today column. He called the combo a "win win win win". Better acceleration, smoother, better MPG, etc. It's out this month on big Dodge & Chrysler sedans. Apparently it will reduce V6 penis envy of Hemis (until, of course, the Hemis eventually get an 8-speed).

Sadly, I don't think the GC is slated to get the 8-speed until the 2013 model. Oh well, that'll give us a year for Chrysler to work the bugs out.

Rich
Week ago David Zatz also reviewed a Pentastar/ZF 8-speed Dodge Charger in allpar.com (see here). Conclusions in short - Hemi-like acceleration V6 mileage and cost.

May be Hemi owners are really poopy heads?
Reply With Quote
  #93  
Old 11-17-2011, 03:32 AM
JoePistone's Avatar
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Nov 2011
Location: Kuwait
Posts: 792
Thanks: 1
Thanked 22 Times in 20 Posts
Rep Power: 74182
JoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond reputeJoePistone has a reputation beyond repute
Send a message via Skype™ to JoePistone
Re: Accleration in the v8 vs v6

Quote:
Originally Posted by Gota View Post
Week ago David Zatz also reviewed a Pentastar/ZF 8-speed Dodge Charger in allpar.com (see here). Conclusions in short - Hemi-like acceleration — V6 mileage and cost.

May be Hemi owners are really poopy heads?
Well it depends really. I'd really love to have all the torque the V8 provides. Especially when it comes to offroading and hauling.

I live in Kuwait and gas is cheap here so to me it was only logical to go for the V8. So gas mileage is not that big of an issue.

I also have a thing for the Hemi. Call it bias but I love muscle cars and having a Hemi in that big/heavy beast is not only a great thing to feel, it's great to hear!

I don't have any plans for the near future, but when it does come to modding - I'd like to keep it Naturally Aspirated, and V8>V6 in that case. Which is why I've opted for the V8. Sure the 0-60 times may seem not that different as it's about a second between the two, but damn...that one second will make a difference when you're trying to overpass someone on the highway. To me, one second can sometimes feel like forever when you're trying to pass someone.

EDIT: Also, I understand the new ZF-8speed has improved the Pentas, but to me it's HEMI all the way. I could only imagine how the Hemi would perform with an 8 speed. Though I'm quite happy with the Hemi 5 speed I tested. It all comes down to taste. I know some guys who have a V6 engine that would smoke the Hemi out the water, but that doesn't matter to me. Because I love that damned HEMI - 5, 6, 7, 8, or a billion speed...I still love that Hemi!
__________________



2011 JGC Overland. Mineral Gray. 5.7 HEMI. Export Model. KUWAIT.
Reply With Quote
  #94  
Old 11-27-2011, 10:26 PM
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Nov 2011
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1965
User_22 is on a distinguished road
Re: Accelleration in the v8 vs v6

Do you guys think it would be possible to get the TSB update on the V6?
Reply With Quote
  #95  
Old 11-28-2011, 09:49 AM
bigpanda's Avatar
Member
 
Join Date: Feb 2011
Posts: 321
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 2916
bigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond reputebigpanda has a reputation beyond repute
Re: Accelleration in the v8 vs v6

Quote:
Originally Posted by User_22 View Post
Do you guys think it would be possible to get the TSB update on the V6?
V6 badly needs new TSB on gearing reset.

Regarding V6 or V8 talk, if I could get V8, I would have gotten one. But here in Korea, Hemi is NOT available.
__________________
Life is Good!!!:thumbsup:

2011 WK2 Overland 3.6 Euro Spec.
Reply With Quote
  #96  
Old 12-08-2011, 10:13 PM
dsw1519's Avatar
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Jul 2011
Location: Central Jersey
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2054
dsw1519 is on a distinguished road
Re: Accelleration in the v8 vs v6

I got the v6 in my 2011 GC. I traded in my 2006 RAM 1500 with the 5.7 hemi. The v6 is fine for me 95% of the time, and I'm getting great gas mileage 18 around town and I just got back from a 1000 mile trip where average 24 MPG. While most of the trip was highway driving, the trip was to the outer banks where I spent some time driving on the beach. I don't regret buying the v6.
__________________
[SIGPIC][/SIGPIC]2011 70th Anv. GC in Black. Pic taken at Cape Hatteras on the outerbanks.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:15 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.