V-12 Caddy
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From: charlotte NC
V-12 Caddy
I have read that Cadillac has been given the green light to produce a V - 12 engine that will initially go into the Escalade (Only current Caddy with enough room under the hood.), but then go into other Cadillac's as they become available.
Now I don't think that this engine will find it's way into a Corvette anytime soon. But the engine is rated at 500 hp. And seeing as how the Corvette ALWAYS has the highest RATED hp engine, is it safe to assume that the next Z06 will be just a bit north of that? :party: :cheers: :flag :party: :hurray:
Now I don't think that this engine will find it's way into a Corvette anytime soon. But the engine is rated at 500 hp. And seeing as how the Corvette ALWAYS has the highest RATED hp engine, is it safe to assume that the next Z06 will be just a bit north of that? :party: :cheers: :flag :party: :hurray:
Pro
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From: Tempe AZ
Re: V-12 Caddy (AF_Cadet)
1987 Buick GNX had more power than the vettes that year.
I wonder if they will build the cadillac Sixteen V-16 with 1000 hp and 1000 FTlbs of tourque
I wonder if they will build the cadillac Sixteen V-16 with 1000 hp and 1000 FTlbs of tourque
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From: charlotte NC
Re: V-12 Caddy (cypher745)
My point exactly. Other GM cars in recent memory may have actually had more power than the vette, but they were never rated as such. So if this caddy is being rated at 500 hp (It could have 600 hp for all we know) Does that not mean that the Z06 will be rated at least a couple of ponies higher?
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☠☣☢ Semper Ebrius ☢☣☠
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From: Virginia
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St. Jude's Donor '06
Re: V-12 Caddy (logansowner)
the Corvette ALWAYS has the highest RATED hp engine
No it doesn't.
Thats why he emphasized on RATED :cheers:
No it doesn't.
Thats why he emphasized on RATED :cheers:
Le Mans Master
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From: St. Peters MO
C7 of Year Finalist (stock) 2019
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Re: V-12 Caddy (Scissors)
Normally the rule at GM is no cars rated higher in HP than the Corvette.
The GNX was one exception to that rule. Its possible there are a few others but in general that rule is still in effect.
The 87 Corvette was rated at 240 hp and the GNX was rated at 276. It was obviously pumping out a good deal more than that with 0-60 times of 4.7 and 1/4 mile times of 13.4 @104. All of that with a curb weight of 3545 lbs.
I suspect the reason to be the limited number produced in 87. Only 547.
The GNX was one exception to that rule. Its possible there are a few others but in general that rule is still in effect.
The 87 Corvette was rated at 240 hp and the GNX was rated at 276. It was obviously pumping out a good deal more than that with 0-60 times of 4.7 and 1/4 mile times of 13.4 @104. All of that with a curb weight of 3545 lbs.
I suspect the reason to be the limited number produced in 87. Only 547.
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Re: V-12 Caddy (2k2C5)
V-12s in cars are primarily a "gee-whiz" feature - not really a good solution for a lightweight sports car. As long as you can package the required displacement within a bore and stroke of about 4.5 x 4.0, a V-8 will be lighter and take up less space. This places the practical limit of a high performance V-8 at around 500 CID.
As you go beyond a 4.5" bore compression is limited due to detonation issues, though WWII aircraft engines typically had 5.5" bores, and beyond 4.0" in stroke high piston speeds place an increasing limit on rev potential due to mechanical stress and volumetric efficiency limitations.
Consider that the current LS-series weighs a little over 500 pounds dressed and occupies and cubic envelope about two feet on each side, and the new Gen IV engines will be about the same weight and volume with improved output.
One of the reasons why the Maranello is so heavy is its heavy V-12 engine, but they sure sound great!
Duke
As you go beyond a 4.5" bore compression is limited due to detonation issues, though WWII aircraft engines typically had 5.5" bores, and beyond 4.0" in stroke high piston speeds place an increasing limit on rev potential due to mechanical stress and volumetric efficiency limitations.
Consider that the current LS-series weighs a little over 500 pounds dressed and occupies and cubic envelope about two feet on each side, and the new Gen IV engines will be about the same weight and volume with improved output.
One of the reasons why the Maranello is so heavy is its heavy V-12 engine, but they sure sound great!
Duke
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From: Virginia
Cruise-In IV-V-VI-VII Veteran
St. Jude's Donor '06
Re: V-12 Caddy (cypher745)
Scissors, could you give an example illustrating where this has not been the case? Thanks.
Buick Grand National GNX: 275 BHP and 360 lb-ft.
Chevrolet Corvette: 240 BHP and 345 lb-ft.
Safety Car
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From: Forked River N.J.
Re: V-12 Caddy (Scissors)
the Corvette ALWAYS has the highest RATED hp engine
No it doesn't.
No it doesn't.
[Modified by ghostRder, 10:20 PM 8/19/2003]
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From: Virginia
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St. Jude's Donor '06
Re: V-12 Caddy (ghostRder)
I just posted something I read in an article about the new Caddy CTS V with the Z06 ( LS6) engine and goes 0-60 in 4.6 seconds --just as fast as a C5 !
Pro
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From: TN
Re: V-12 Caddy (Scissors)
The idea use to be true at GM that no car could have an engine output rated higher than the Corvette, but now that Lutz is there I think things might have changed. Lutz knows that the luxury scene has heated up to a full scale war in the hp department. Look at the new Benz's and BMW's coming out. You can now get a twin turbo V-12 Benz with 575+hp, and an AMG version is yet to come with over 700ftlbs of trq. The next BMW M5 will have a 500hp V-10. I wouldn't be surprised if Lutz broke the rule of rating a luxury car/truck with a higher output than the Vette since they aren't in competition with eachother.
Racer
Joined: Jun 2002
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From: royal oak mi
Re: V-12 Caddy (Formula)
I agree the new HP wars may change GM's attitude about rating cars higher than the vette. There will be one difference though when compared to the 87GN (&91 syclones/92 93 typhoons).... the vette will not be outdone in the HP category by a vehicle with a lower base price.
Never out do your flagship with something that costs less. :nono:
[Modified by sacsrpc, 11:22 AM 9/9/2003]
Never out do your flagship with something that costs less. :nono:
[Modified by sacsrpc, 11:22 AM 9/9/2003]
Pro
Joined: Jan 2001
Posts: 681
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From: TN
Re: V-12 Caddy (sacsrpc)
I agree the new HP wars may change GM's attitude about rating cars higher than the vette. There will be one difference though when compared to the 87GN (&91 syclones/92 93 typhoons).... the vette will not be outdone in the HP category by a vehicle with a lower base price.
Never out do your flagship with something that costs less. :nono:
Never out do your flagship with something that costs less. :nono:
Drifting
Joined: Mar 2003
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Re: V-12 Caddy (SWCDuke)
V-12s in cars are primarily a "gee-whiz" feature - not really a good solution for a lightweight sports car. As long as you can package the required displacement within a bore and stroke of about 4.5 x 4.0, a V-8 will be lighter and take up less space. This places the practical limit of a high performance V-8 at around 500 CID.
As you go beyond a 4.5" bore compression is limited due to detonation issues, though WWII aircraft engines typically had 5.5" bores, and beyond 4.0" in stroke high piston speeds place an increasing limit on rev potential due to mechanical stress and volumetric efficiency limitations.
Consider that the current LS-series weighs a little over 500 pounds dressed and occupies and cubic envelope about two feet on each side, and the new Gen IV engines will be about the same weight and volume with improved output.
One of the reasons why the Maranello is so heavy is its heavy V-12 engine, but they sure sound great!
Duke
As you go beyond a 4.5" bore compression is limited due to detonation issues, though WWII aircraft engines typically had 5.5" bores, and beyond 4.0" in stroke high piston speeds place an increasing limit on rev potential due to mechanical stress and volumetric efficiency limitations.
Consider that the current LS-series weighs a little over 500 pounds dressed and occupies and cubic envelope about two feet on each side, and the new Gen IV engines will be about the same weight and volume with improved output.
One of the reasons why the Maranello is so heavy is its heavy V-12 engine, but they sure sound great!
Duke
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Re: V-12 Caddy (Scissors)
Scissors, could you give an example illustrating where this has not been the case? Thanks.
1987
Buick Grand National GNX: 275 BHP and 360 lb-ft.
Chevrolet Corvette: 240 BHP and 345 lb-ft.
1987
Buick Grand National GNX: 275 BHP and 360 lb-ft.
Chevrolet Corvette: 240 BHP and 345 lb-ft.
