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      05-25-2015, 10:33 AM   #1
ihc95
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ATS-V+ with NA LS7 V8

http://wot.motortrend.com/1505_cadil...ls7_power.html

Still wouldn't buy one but if this is true, big respect to GM for such a badass car.
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      05-25-2015, 10:43 AM   #2
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2009 BMW 135i  [8.50]
I'd be more inclined to buy one over the v6 turbo (as much as I like turbos), the 427 has only been in largely impractical and heavy sprung road and track cars. It would be nice to have one in a reasonably comfortable practical car.
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      05-26-2015, 08:28 AM   #3
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This seems almost unbelievable right now.

If this is true, it would be an amazing machine!
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      05-29-2015, 03:15 PM   #4
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2007 335 coupe Alpine white, steptronic, sportpack, etc. (gone)
2006 X3 3.0 steptronic Titanium Silver, 2009 E92 335xdrive, next.... Caddy CTS_V! 13 Lincoln MKZ? hmmm.
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      05-29-2015, 03:26 PM   #5
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I'll believe it when I see it.

http://gmauthority.com/blog/2015/05/...says-cadillac/
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      05-30-2015, 09:36 AM   #6
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That would be the wrong direction IMO, the turbo 3.6 is the right direction. In fact, I'd like to see an ATS Vsport with 350hp/350tq, widebody kit, single turbo 3.6, to compete with the 335/340 type cars. The 320hp V6 is too short on torque down low and up high to be a serious competitor, but the ATS has the handling chops to run with any car, so it's just a matter of getting the right powerplant in there.
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      05-30-2015, 07:54 PM   #7
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The LS7 has been around for 9 years and still an amazing motor.

I love how a 350HP V6 is the "right" direction, lol, over a 500HP V8 with tons of mod potential.
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      05-30-2015, 07:58 PM   #8
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Out of curiosity how does this motor stack up against a S85? I'm mobile atm
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      06-04-2015, 03:06 PM   #9
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Quote:
Originally Posted by Nitrousbird View Post
The LS7 has been around for 9 years and still an amazing motor.

I love how a 350HP V6 is the "right" direction, lol, over a 500HP V8 with tons of mod potential.
I wasn't saying there shouldn't be a "balls out" version, just that there should be an intermediary version and it shouldn't be the NA 3.6.

The "balls out" should be a twin turbo with a higher tune. The 505hp LS7 is cool, but the torque down low from a twin turbo 3.6 (or bored to 4?) would be even better. That would help keep it as the "little brother" to the CTS-V IMO and be in line with it's smaller more compact chassis.
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      06-04-2015, 03:24 PM   #10
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Quote:
Originally Posted by 8k3 View Post
Out of curiosity how does this motor stack up against a S85? I'm mobile atm
7.0l V8 vs a 5.0l V10. ~7k redline vs 8.2k redline. ~460lbs vs ~530lbs. ~470 ft/lbs vs ~380 ft/lbs. Likes to valve drop vs rod bearing issues.

The LS7 is better suited to track duties IMO just as long as a valve doesn't drop. Very, very few LS7s are having this issue anymore but I have read that a 1 Z/28 had it happen while running around the road course.
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      06-04-2015, 05:27 PM   #11
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Quote:
Originally Posted by Vigilante375 View Post
7.0l V8 vs a 5.0l V10. ~7k redline vs 8.2k redline. ~460lbs vs ~530lbs. ~470 ft/lbs vs ~380 ft/lbs. Likes to valve drop vs rod bearing issues.

The LS7 is better suited to track duties IMO just as long as a valve doesn't drop. Very, very few LS7s are having this issue anymore but I have read that a 1 Z/28 had it happen while running around the road course.
You forgot to mention that the LS7 has far more mod potential and is easier to mod, work on, FAR larger aftermarket and much cheaper to mod and repair.
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      06-04-2015, 06:32 PM   #12
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Quote:
Originally Posted by Vigilante375 View Post
7.0l V8 vs a 5.0l V10. ~7k redline vs 8.2k redline. ~460lbs vs ~530lbs. ~470 ft/lbs vs ~380 ft/lbs. Likes to valve drop vs rod bearing issues.

The LS7 is better suited to track duties IMO just as long as a valve doesn't drop. Very, very few LS7s are having this issue anymore but I have read that a 1 Z/28 had it happen while running around the road course.
Thanks
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      06-04-2015, 08:44 PM   #13
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Quote:
Originally Posted by Nitrousbird View Post
You forgot to mention that the LS7 has far more mod potential and is easier to mod, work on, FAR larger aftermarket and much cheaper to mod and repair.
Not to mention that the gas mileage of the LS7 is far better also.
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      06-04-2015, 10:47 PM   #14
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Oh I only mentioned a few. But overall the LS7 is the better choice to anything over the S85 engine other than the S85 revving higher.
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