IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

IS250 to get new higher HP 3.5L V6 (rumor)

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Old 08-07-07, 10:54 PM
  #31  
tracerit
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this is just speculation right? because I came in here thinking that the IS250 will actually have that engine. A mod should really change the title...
Old 08-08-07, 12:12 AM
  #32  
TRDFantasy
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I agree, the misleading title should be changed.

As for the future, this is what I see happening: the IS350 will get an upgraded/updated engine with more power, and the IS250 will either get an updated engine or a bigger engine with possibly D4-S being added over the current D4 system the IS250 uses. That way both 250/350 models get power increases while keeping a nice gap between them and the IS-F.
Old 08-08-07, 06:07 AM
  #33  
YWW
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If you look at it from a manufacturing cost stand point and volume is everything, it would make sense to drop the low volume 2.5L V6 on the IS250 since I believe it's the only car that uses this 2.5L V6 engine as compared to the super high volume 3.5L 268hp used in just about everything else. My guess is if they do that, they'll bump the hp on the IS 350 higher.

When the new '08 Highlander came out recently with the 3.5L 268hp engine, the price went up $2000 over the old 3.3L V6 but they didn't drop the 3.3L entirely since it's still used in all the Highlander and RX hybrids.

Some of you mentioned about mileage. My feeling is the 3.5L 268hp V6 engine gets as good mileage as the current 2.5L V6. Just look at the mileage difference between the 4 cyl base engine vs the 3.5L 268hp V6 in the RAV4, there's only about 1 mpg difference.
Old 08-08-07, 06:23 AM
  #34  
Gernby
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Originally Posted by Gtidan
I am very happy with the performance of my IS250 and the gas mileage. Just returned from a trip to the beach (73 miles round trip) set the cruise on 72MPH and the computer registered 32.0 MPG on the nose as I turned in the driveway..............gotta love it.
I don't think the MPG thing is as big of a deal as everyone makes it out to be. I got 35.5 MPG during a 40 mile cruise through Dallas at about 65 MPH a couple weeks ago.
Old 08-08-07, 06:44 AM
  #35  
Yay-Z
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you gotta love the mileage
Old 08-08-07, 06:53 AM
  #36  
IS350jet
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I don't see it happening. I mean, really, what would they call it???
Old 08-08-07, 07:01 AM
  #37  
Toptier
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If the IS250 gets the 3.5 then it wouldn't be called IS250 anymore.
Old 08-08-07, 08:13 AM
  #38  
sykocus
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Originally Posted by Toptier
If the IS250 gets the 3.5 then it wouldn't be called IS250 anymore.
For a minute there I thought I was the only one thinking that.
Old 08-08-07, 04:54 PM
  #39  
IS250 4 Me
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Originally Posted by Gernby
I don't think the MPG thing is as big of a deal as everyone makes it out to be. I got 35.5 MPG during a 40 mile cruise through Dallas at about 65 MPH a couple weeks ago.
Yes, but you've also done some AF ratio mods to your IS, no?
Old 08-08-07, 05:17 PM
  #40  
Gernby
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Originally Posted by IS250 4 Me
Yes, but you've also done some AF ratio mods to your IS, no?
Yes, but nothing that would impact highway mileage at all.
Old 08-08-07, 05:20 PM
  #41  
IS250 4 Me
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Originally Posted by Gernby
Yes, but nothing that would impact highway mileage at all.
That is some serious gas mileage.

The best I've done on a 30 mile highway trip here in Houston is 34.2 mpg cruising at about 65 mph with no traffic around (cruise control on, and AC off).
Old 08-08-07, 06:51 PM
  #42  
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Originally Posted by spin
ummm if the Lexus IS250 got a 3.5... wouldn't they both be called the IS350?... If so how would you know which is the 300HP and which is the 260HP?... I HIGHLY doubt lexus would put a 3.5 into the is250... maybe increase the HP to 230 or something or increase it to the IS300 (3.0L)
Surely you would see the "Type R" emblem...
Old 08-08-07, 07:40 PM
  #43  
llamaboiz
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With those new govt. regulations that the car manufactures are fighting, 35mpg average something or other, i dont see toyota upping the hp/engine size for the 250. Lotta ppl are complaining about the EPA mpg ratings too so the 'best' mpg shown may change too...

The winds of change are blowing, get the high hp cars now while you can, those bs motors from the late 70's-early 80's are gonna be cycling back again. Just how do i know this? ...the voices tell me.
Old 08-08-07, 07:52 PM
  #44  
Ramon
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IMO... Not gonna happen.
Old 08-08-07, 08:32 PM
  #45  
lobuxracer
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Originally Posted by llamaboiz
With those new govt. regulations that the car manufactures are fighting, 35mpg average something or other, i dont see toyota upping the hp/engine size for the 250. Lotta ppl are complaining about the EPA mpg ratings too so the 'best' mpg shown may change too...

The winds of change are blowing, get the high hp cars now while you can, those bs motors from the late 70's-early 80's are gonna be cycling back again. Just how do i know this? ...the voices tell me.
No worries. The misguided junk science crowd that believes CO2 is responsible for global warming will be crying for more CO2 in 20 years when the sun's magnetic field collapses and we get plunged into another mini-ice-age. Read the science...the climatologists at the top of the field who aren't trying to get government grants are not blaming CO2 anymore.

Last edited by lobuxracer; 08-08-07 at 09:12 PM.


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