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Cadillac STS-V Series Forum Discussion, How About This ...the New Sts V in Cadillac V-Series Forums; Originally Posted by Crozier Ok. I give up on my subscription. What are the M45's numbers? Not to steal the ...
  1. #31
    Reckamech is offline Cadillac Owners Member
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    Re: How About This ...the New Sts V

    Quote Originally Posted by Crozier
    Ok. I give up on my subscription. What are the M45's numbers?
    Not to steal the New STS-V thunder but the M45 numbers via Car & Driver put it's 1/4 mile time at 14.2 sec @ 101 mph. That's pretty good for a 4 door car with 335Hp. Car and Driver ESTIMATES the STS-V with it's 440 Hp running the 1/4 mile at 13.8 sec @ 101 mph and when stacked up against the STS-V the M45 is 280lbs lighter. I am sure the STS-V will put up better numbers than what C&D estimates but the M45 is quick espically when compared with the V8 STS.

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    Re: How About This ...the New Sts V

    Quote Originally Posted by Crozier
    Bbob,

    Thanks for the excellent info! It sounds like this will be one amazing car! A couple of question for you though. First, why 4.4 Liters? Why go down in displacement for the HO model? Second, do you know the torque numbers? Third, will we be seeing this six speed auto in the Corvette pretty soon? Finally, is there an XLR-v coming our way soon? How about the others models, any V work headed their way?
    Thanks again for all the great details!
    The supercharged engine ends up at 4.4 liters due to a reduction in the cylinder bores from 93 mm to 91 mm to create more space between the cylinder bores to enhance cylinder head gasket sealing with the boosted engine. In addition, the engine runs a multilayer steel head gasket, precision ground block and head deck surfaces and 2.0 mm thread pitch head bolts for strength.

    The advertised power numbers for the supercharged Northstar engine in the STS-V are 440 HP @ 6400 and 430 lb.ft. @ 3600.

    Check out the info being released in the press for the Corvette....

    What XLR-V.....?????

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    Re: How About This ...the New Sts V

    Bbob, any idea how much power this engine makes without the supercharger? im thinking if the SC adds ~150 hp but costs 60hp to run. then its netting 90 hp, so would the engine make 350 hp without? my numbers are basically made up. but i was thinking if this engine is stouter than the standard N* AND more powerful, maybe it could become the standard V8 for the STS/SRX. thus bringing price down as well, economies of scale, blah, blah, blah.

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    Re: How About This ...the New Sts V

    Quote Originally Posted by bbob
    At 440 HP @ 6400 the engine is making 1 HP per liter of displacement
    100 HP per liter.

  5. #35
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    Re: How About This ...the New Sts V

    Quote Originally Posted by Reckamech
    I can't say I am not impressed Is their any word if the STS-V is still using the 5 speed auto transmission? From the pictures I see their is no manual but wondering if their is a 6 speed auto.
    There will be a new 6 speed/manu-matic.

  6. #36
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    Re: How About This ...the New Sts V

    Quote Originally Posted by bbob
    I have seen quite a few drivers that are used to some very fast and high output engines drive the prototype STS-V cars and I have yet to hear one that was dissatisfied with the performance.


    The various STS-V mule vehicles and prototypes have lived on the Milford Road Course , the Nurburgring and several other race tracks around the country since the program started. I cannot imagine a vehicle (aside from the Corvette) that would have accrued as much track time during development as the STS-V. Actually, within the past 2 years any time there was a Corvette track test there were STS-V cars there also so it probably has more track time per vehicle than the Corvette mules given the number of laps turned.

    BTW....the cars are being driven by very competent test drivers. One of the aspects of HPVO is to train and certify drivers against some of the best in the world so that vehicle performance is accurately rated. To say that some of the drivers of the STS-V program are "good" is an understatement. John Heinricy, who is very well known as a racing driver outside of GM, is the head of HPVO so he serves as the gold standard for driver performance. This really raises the bar in terms of vehicle performance and capability as the driver level is good enough to as to tax the car to the very limit.

    Bob , the more you talk about vehicle devlopment the more i want to be a part of it...Im to the point im willing to throw away my "never wanna see snow again" mantality .....Too bad i blow at math ....but if you need a driver call me .....

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    Re: How About This ...the New Sts V

    Quote Originally Posted by Brett
    Bbob, any idea how much power this engine makes without the supercharger? im thinking if the SC adds ~150 hp but costs 60hp to run. then its netting 90 hp, so would the engine make 350 hp without? my numbers are basically made up. but i was thinking if this engine is stouter than the standard N* AND more powerful, maybe it could become the standard V8 for the STS/SRX. thus bringing price down as well, economies of scale, blah, blah, blah.

    I would say that it would make...about....310 HP without the supercharger. The 4.6 rear wheel drive Northstar makes 320 HP and that engine is pretty well tweaked for maximum HP combined with a good torque curve. I wouldn't expect any gains past that, really. The supercharged engine makes 440 HP because of the supercharger....period. That is why all the work went into adapting the blower to the motor.

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    Re: How About This ...the New Sts V

    Quote Originally Posted by the Sandman
    100 HP per liter.


    Yea, thanks for the help. That is what I meant but my typing exceeded my brain I guess....


    It is nice to note that the 440 HP rating is a very conservative rating. It is indicative of readily achieveable intercooler coolant temperatures on a warm day...not a flash number achieved by running ice water thru the intercooler...LOL. Give it cold water on a cold day and watch out.....

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    Re: How About This ...the New Sts V

    I see that the predicted numbers for the 300 Hemi C SRT 8 with 425 HP are 0-60 in 4.9 and the 1/4 mile in 13.2. Any predictions for the STS-V BBob?

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    Re: How About This ...the New Sts V

    Quote Originally Posted by the Sandman
    I see that the predicted numbers for the 300 Hemi C SRT 8 with 425 HP are 0-60 in 4.9 and the 1/4 mile in 13.2. Any predictions for the STS-V BBob?

    I'm surprised that they are going with "only" 425 HP....they have considerable displacement over the STS-V. I'm also wondering how they are going to haul that heavy car down the 1/4 in only 13.2 with that power level....LOL.

    My money is on the STS-V in a heads up race. Hard to quote numbers at this stage. I would rather the magazines test them and report the numbers so no one thinks there is BS or bias.

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    Thumbs up Re: How About This ...the New Sts V

    If the STS-v had AWD it would have been perfect. At $70,000+ the car is very expensive but it looks better than the M5 and will drive better than the E55.

    Does anyone know if the STS-v will get the same steering rack/gear as the CTS-v?

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    Re: How About This ...the New Sts V

    The interior STS pic on the bottom is just WOW, imo its the best interior ever for a cadillac

    http://www.autoextremist.com/firstlook.shtml

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    Re: How About This ...the New Sts V

    Quote Originally Posted by bbob
    I'm surprised that they are going with "only" 425 HP....they have considerable displacement over the STS-V. I'm also wondering how they are going to haul that heavy car down the 1/4 in only 13.2 with that power level....LOL.

    My money is on the STS-V in a heads up race. Hard to quote numbers at this stage. I would rather the magazines test them and report the numbers so no one thinks there is BS or bias.
    Actually, I was mistaken about these "predictions". They are actual test results reported in the latest Motor Trend. The CTS-V did 0-60 in 4.7, and the 1/4 mile in 13.1. The '05 GTO did the quarter in 13.3. Damn this is a golden age for performance - the new Z06 should be in the mid 11's... for around $75,000.

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    Re: How About This ...the New Sts V

    I heard somewhere, I wish I could remember where, that the new Z06 will be priced between $60,000 and $65,000. How's that for bang for the buck!

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    Re: How About This ...the New Sts V

    Quote Originally Posted by CoupeDevilleRob
    I heard somewhere, I wish I could remember where, that the new Z06 will be priced between $60,000 and $65,000. How's that for bang for the buck!
    The latest Motor Trend has a nice article on the upcoming Z06, and estimaties the price at $75,000 - $85,000. Still a bargain for a Dodge Viper and Ford GT slayer...

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