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4.2-liter biturbo V8: 550 HP & 627 LB-FT!

6K views 54 replies 21 participants last post by  pissedoffwookiee  
#1 ·
I can't wait for this motor to find its way into smaller Caddy's - especially something ATS-sized. For more info about the new motor destined for the CT6 go here: https://www.motor1.com/news/236860/cadillac-ct6-v-sport-debut/

BTW, why isn't this a full on V-series model (instead of V-sport)? Does Cadillac have something more powerful for the V-series CT6 or will there be no V-CT6 just like there is no true M-series for the BMW 7-series? Also, thank god Cadillac is not going full Volvo with nothing but 4-pot motors + electric across the range!

Looks fantastic!


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#7 · (Edited)
Has anyone mentioned yet it is also AWD?

For 2018 BMW has slam dunked Cadillac and the CTS-V by going V8 Twin Turbo w/ AWD and a 10A and already has put down 0-60 in 2.8 and the 1320 in 10.8 in one car mag test I was reading online although top speed is capped at 189.

I don't think this new Caddy will put numbers like that down but w/ AWD and a 10A even in V Sport Trim it will probably give the CTS-V and ATS-V something to worry about.
 
#8 ·
Re: 4.2-liter biturbo V8: 550 HP & 627 LB-FT!

Am I the only one that looks at stock numbers on a twin turbo (especially a V8) mainly as a barometer for how much potential it has for a basic bolt on/tune packages?
Shoot, 550/627 is Stout, but I like the idea of adding 100 to each of those numbers with a tune, intake and DPs.

Sent from my XT1635-01 using Tapatalk
 
#10 ·
Re: 4.2-liter biturbo V8: 550 HP & 627 LB-FT!

Am I the only one that looks at stock numbers on a twin turbo (especially a V8) mainly as a barometer for how much potential it has for a basic bolt on/tune packages?
Shoot, 550/627 is Stout, but I like the idea of adding 100 to each of those numbers with a tune, intake and DPs.

Sent from my XT1635-01 using Tapatalk
No, I think we all realize that. One thing to keep in mind though. You reach a point where the power becomes unusable in daily driving. In this car 627TQ (532WTQ) is manageable due to it's weight and most likely due to the gearing and torque management applied by the ECU.
My friends car is at 502WTQ and its a handful.

I imagine you could get and easy additional 110-150 additional HP/TQ with just a solid tune.

I think in our car, when you reach around 600WTQ, you would begin reaching the point where it's unmanageable unless you have the car configured for the track.
 
#24 ·
Cadillac already confirmed they are merging there compact and midsize sedan segment into only one vehicle roughly the size of the previous gen CTS-V.Making another vehicle smaller than that would just not make sense as it would be too close to the dimensions of the current ATS which is exactly what they are trying to steer away from.Its always been Cadillac's niche to use entirely different powertrains in there V series than in there luxury flagships so we are more likely to see the lighter V variant staying rear drive with either the LT4 or a revised LF4 with 0-60 in 3.5sec range and 1/4 times in 11.5 - 11.3sec range which would still put it ahead of other vehicles " in its own respected segment "
 
#26 ·
Cadillac already confirmed they are merging there compact and midsize sedan segment into only one vehicle roughly the size of the previous gen CTS-V.Making another vehicle smaller than that would just not make sense as it would be too close to the dimensions of the current ATS which is exactly what they are trying to steer away from. "
Two more Alpha platform sedans are coming out soon
 
#38 ·
The 'Escalade' has a lot of built up recognition/cache'. Cadillac would be fool hardy to re-name it. Take Ford and the Taurus... they came out with a revised car, renamed it the '500' or such and sales sunk. New Ford CEO Alan Malally (just came from Boeing) said 'WTH?!' and had them rebadge it back as the Taurus and sales picked up.
 
#41 ·
Cant speak on there testing methods but Car & driver has always been notorious for having the most inconsistent performance figures out of any publisher.Motortrend's figures always seem to stay more consistent between testing overall and they also film most of the testing during Head 2 Head comparisons.That being said they have filmed acceleration times in the ATS-V at 3.7sec and the CTS-V at 3.8sec to 60 mph
 
#43 ·
I like MT's Head 2 Head testing videos and have seen their 3.7s ATS-V video.

Car & Driver, Motor Trend and Road & Track (to name only 3 testing outfits) all use the NHRA Roll Out method for 0-60 times.

If the test takes place at a dragstrip then by default the test will be a rollout type.

If they are using the so call Racelogic Vbox at a their favorite testing grounds the Vbox timer will be set to start after the car has moved foreword a foot (actually about 11.25").

They do this to keep things consistent with testing they do at a regulation dragstrip.

This is why everyone (me included) could not match the car magazine 0 - 60 times when we tested our own cars using the onboard PDR because that device starts timing the instant the it detects any foreword motion.

European timed tests are always slower because they don't use the NHRA rollout technique.
 
#45 ·
You may be right but what I am talking about is more than just the figures posted on there website.I have been subscribed to them for years and there test figures for the same cars changed every time I received a new issue.So much so that I always thought it either had to be a different driver or track all together each publishing because trap speeds and quarter times would be all over the place.Anyway lets see when one of these luxury barges actually comes out if anyone makes performance upgrades for them or even takes them to the track other than the magazines
 
#46 ·
talking magazine ratings is a waste of time. C&D is particularly bad. The only real way to know which is the better performer is to look at lap times under similar conditions. Usually the professional drivers like Pobst and will have very close times to one another and are a better indicator of what these cars can do. That said, I don't think there is that much of a real world difference between the AMG, M, and V at this point it comes down to the driver and whether or not you want to look like a sack riding knob like everyone elese
 
#50 ·
Just saying man, I hear it from these guys all the time about how some magazine tested this car or that and how it came out a few tenths of a second faster or something to that effect. It never fails. Then you consider the fact that I drive through Ashburn VA every day which is essentially douche bag territory where every moron in german sedan tries to beat you across the intersection or gives you shit looks for driving something other than their AMG or M car. It's obnoxious. I don't drive daily to race people. If I did that I could come packing a blown LS in a sleeper. I further can't understand the point of bragging when these people can barely drive in the first place or have their face buried in their phone. In the real world most of these guys are incompetent no matter what they drive but they sure rely on C&D numbers to give them some kind of ego boost. I wish they had a requirement where you couldn't buy a German car unless you actually learned to drive like a German.