Is this "physically" possible?
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 5,695
Likes: 2
Is this "physically" possible?
Considering this car is well over 4000 lbs. and has a maximum of 370 hp at the crank....
http://www.maxperformancecars.com/in...d=2618&catid=5
OK...I don't know WTF is wrong with the link (it's not what I captured), but the car is a '99 Jaguar XJR (claimed totally stock) and the timeslip...if it's the same car...shows a 13.26 1/4 mile.
And he claims he's gonna can get into the mid 12's. Hmmmm
OK...link seems to be working now. My point is: how is it that the ZR-1 struggles to get into and stay in the mid 12-13 range (stock) with more hp and less weight..and far more tread on the ground. And, here's a luxo-sedan with all it's mass being able to run right beside some of us? Maybe we need to trade our 6-speeds for a good AT??
http://www.maxperformancecars.com/in...d=2618&catid=5
OK...I don't know WTF is wrong with the link (it's not what I captured), but the car is a '99 Jaguar XJR (claimed totally stock) and the timeslip...if it's the same car...shows a 13.26 1/4 mile.
And he claims he's gonna can get into the mid 12's. Hmmmm
OK...link seems to be working now. My point is: how is it that the ZR-1 struggles to get into and stay in the mid 12-13 range (stock) with more hp and less weight..and far more tread on the ground. And, here's a luxo-sedan with all it's mass being able to run right beside some of us? Maybe we need to trade our 6-speeds for a good AT??
Last edited by dallas916; Aug 10, 2008 at 11:36 PM.
Le Mans Master
Joined: Sep 2000
Posts: 6,303
Likes: 714
From: Bartlett IL
Considering this car is well over 4000 lbs. and has a maximum of 370 hp at the crank....
http://www.maxperformancecars.com/in...d=2618&catid=5
OK...I don't know WTF is wrong with the link (it's not what I captured), but the car is a '99 Jaguar XJR (claimed totally stock) and the timeslip...if it's the same car...shows a 13.26 1/4 mile.
And he claims he's gonna can get into the mid 12's. Hmmmm
OK...link seems to be working now. My point is: how is it that the ZR-1 struggles to get into and stay in the mid 12-13 range (stock) with more hp and less weight..and far more tread on the ground. And, here's a luxo-sedan with all it's mass being able to run right beside some of us? Maybe we need to trade our 6-speeds for a good AT??
http://www.maxperformancecars.com/in...d=2618&catid=5
OK...I don't know WTF is wrong with the link (it's not what I captured), but the car is a '99 Jaguar XJR (claimed totally stock) and the timeslip...if it's the same car...shows a 13.26 1/4 mile.
And he claims he's gonna can get into the mid 12's. Hmmmm
OK...link seems to be working now. My point is: how is it that the ZR-1 struggles to get into and stay in the mid 12-13 range (stock) with more hp and less weight..and far more tread on the ground. And, here's a luxo-sedan with all it's mass being able to run right beside some of us? Maybe we need to trade our 6-speeds for a good AT??
Pro
Joined: Apr 2008
Posts: 537
Likes: 0
i agree with dominic , if you were to race him from a 15mph roll you would leave him in the dust so fast it wouldnt be funny. thats where these cars shine is a roll race . either that or go to a solid rear end setup so you can get after her off the line without fear 1/2 shafts flying all over the place.thats what i did with my black 90 
Race Director
Joined: Oct 2006
Posts: 13,404
Likes: 55
From: Glastonbury CT.
St. Jude Donor '11-'12-'13-'14-'15-'16-'17,'20, '21,'22, '23
Don't underestimate a supercharged Jag. The XKR and XJR are faster than you think they would be. High 12's would not be much of a strech.
777
777
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 5,695
Likes: 2
They are pretty quick for the weight they carry, but when you factor 4000+ lbs, smaller tires, no equalization of traction, and approx. 370 hp at their best it seems a little too fast. I can see low 14's, but not much less.
Racer
Joined: Jul 2002
Posts: 391
Likes: 0
From: Las Vegas NV
Advanced
Joined: Jul 2008
Posts: 97
Likes: 0
From: South East Michigan
...how is it that the ZR-1 struggles to get into and stay in the mid 12-13 range (stock) with more hp and less weight..and far more tread on the ground. And, here's a luxo-sedan with all it's mass being able to run right beside some of us? Maybe we need to trade our 6-speeds for a good AT??
Also, traditional ATs always deliver power-on shifts because there is no discontinuity in torque such as when a manual clutch disengages. Sometimes an assumption exists that a manual transmission car is faster, but that's only because an intelligent driver can learn the best shift points. Now (probably 2005+) that automatic transmissions are smarter and have many more adaptive parameters, they can easily shift faster and at better spots in the RPM range. Look at the new Camaro, the automatic is faster than the manual and has significantly less horsepower.
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Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 5,695
Likes: 2
The Jag uses a 5 speed AT that's not particularly beefy, and the V8 is only 4 liters. I sure wouldn't be drag racing the Jag very often as they are very expensive to repair and have a reputation for weaknesses in odd places (poor wheel bearings, lousy cam chain tensioners, strange things like rear view mirrors that leak, rear end bearing problems). But to the point of 1/4 mile times/speeds, it just seems to defy the power to weight ratio limitations.