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Awd>1wd

TRicker said:
sweet. i have a question though.

i have been looking into a jag X type 3.0 5spd sport model. what is holding me back, is the jag forums are all saying that the awd system isn't going to handle much HP over stock, or any real abuse. now your gonna use it in a rally car? should i not be listening to the forum members or what?
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Um, Jag 3.0 > SVT 2.5 :shrug:
 
Devanmc said:
ok is it just me, or in pic 1 with the car sitting on this new rear subframe and such. the control arm bars dont look to be at the same angle. like one is flat and the other is angled. :shrug:
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That's because when I put the axle together, the outside of the axle would no longer move. It caused the whole right side of the car to sit higher. I just took the photo before I painted it to show the car sitting on its brand new suspension.
 
zorrex said:
Um, Jag 3.0 > SVT 2.5 :shrug:
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morbid said:
Why? I would rather have a Contour than a Jag... I'm also sure the Contour is a decent bit lighter.
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Jag 3.0 puts out about 227 horses, has some British tuning done to it, plus I believe it has VCT.

x-type is a little heavier, but I believe IIRC it runs a 14.9 in the quarter mile. So it is faster, not by much though, cornering I have no idea though.
 
AliasJerk said:
Jag 3.0 puts out about 227 horses, has some British tuning done to it, plus I believe it has VCT.

x-type is a little heavier, but I believe IIRC it runs a 14.9 in the quarter mile. So it is faster, not by much though, cornering I have no idea though.
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It isn't about speed. It is about power only.

If anything, the drivetrain is being strained MORE in the Jag because it is moving a larger mass. :shrug:
 
zorrex said:
It isn't about speed. It is about power only.

If anything, the drivetrain is being strained MORE in the Jag because it is moving a larger mass. :shrug:
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This is true but, not everyhing that needs to be considered. My car will weigh at least 200lbs less than the jag empty. There will be a driver and co-driver during the race. The weight of the extra person will bring the weight of by car to about that of the jag with only one person. I think. Also, there's a lot more rotating mass because of the heavy rally tires. The main difference will be that the svt engine doesn't make as much torque as the jag motor with vct. If I can launch my car fast without breaking the stock diff and axles using r compond tires, I Zhou be able to make thejag stuff last. All rally cars break though.
 
Goumba said:
This is true but, not everyhing that needs to be considered. My car will weigh at least 200lbs less than the jag empty. There will be a driver and co-driver during the race. The weight of the extra person will bring the weight of by car to about that of the jag with only one person. I think. Also, there's a lot more rotating mass because of the heavy rally tires. The main difference will be that the svt engine doesn't make as much torque as the jag motor with vct. If I can launch my car fast without breaking the stock diff and axles using r compond tires, I Zhou be able to make thejag stuff last. All rally cars break though.
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Really? The X-Type with AWD weighs 3500-3600 pounds. If your car is stripped down, you're probably looking at 2800-2900 lbs before you add the AWD stuff, which is...what...200lbs or so? Jag+driver is going to be ~3700lbs, your car with two drivers should be ~3400lbs or so, right?
 
My target weight is less than 3000 lbs with the awd and cage installed. Add one 190lb person and one 260lb person, and all of a sudden your not too far off.
 
Drivetrain isn't measured with a power limitation, but instead with a torque limitation. Torque is a measurement of how hard the engine is able to twist. The force of that twist is what is capable of breaking the drivline components. Horsepower is the amount of force multiplied by the amount of times you can use that force in a minute. I think the torque limit of the jag stuff is only ~240 ft/lbs. The svt engine only makes 180 at the crank. Subtract the loss through the gearbox and the transfer case should only be seeing about 160. I know it can still break, but it shouldn't. Only time will tell for sure.
 
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KingpinSVT said:
I think shock loads are what you'll be worried about here.
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I know. But like I said earlier. If I can launch the car fast with a stock diff and axles on stickey tires without breaking stuff, I'll be good with the awd stuff. Also, I'm reusing the smooth engaging svt clutch.
 
Hey Goumba, don;t mean to interrupt such an epic thread, but let's see those beads! I need something to compare my TIG to. My Dad (welding/manuf/project engineer) says I'm darned good, but I'd like something to guage myself against.:cool:
 
Goumba said:
I think the torque limit of the jag stuff is only ~240 ft/lbs. The svt engine only makes 180 at the crank. Subtract the loss through the gearbox and the transfer case should only be seeing about 160. I know it can still break, but it shouldn't. Only time will tell for sure.
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I would expect the torque to drop closer to the mid 140's, with the AWD and big tires i'd expect the power loss to be closer to 20%, rather then the roughly 10% you've estimated with.
 
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