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2012 Escalade, 2014 SRX
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I looking forward to doing the same mods as my Z06 with the addition of a Vortech supercharger, my Vette friends need to see some Cady tail lights ;)
 

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Magnusson has a Zo6 blower kit that is intercooled. Just a matter of time before they tweek it for the V. Instant 500+ horsepower.! No engine mods required.
Personally, I think the small skins on the V limit the 0-60. It should be able to get at least the 4.7 with inch wider hides. Look what the Vette has to work with..
 

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2017 CTS-V
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The width of the tire has nothing to do with frictional force (grip). The only thing that determines how much grip you have is the coefficient of static friction between the tire and the road and the weight of the car . Wider wheels, other than better looks, only help distribute heat from the tire rubbing against the road. If you put stickier tires on the V, it will have just as much grip as compared to wider tires with the same coefficient of friction.
 

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Mbai2 said:
The width of the tire has nothing to do with frictional force (grip). The only thing that determines how much grip you have is the coefficient of static friction between the tire and the road and the weight of the car . Wider wheels, other than better looks, only help distribute heat from the tire rubbing against the road. If you put stickier tires on the V, it will have just as much grip as compared to wider tires with the same coefficient of friction.
or put wider stickier tires and you'll be allright.......are you saying a 285 tire has NO advantage over a 245 if there the same exact tire, same diameter, etc etc?? "ummmm, yeah...im going to go ahead and have to disagree with you there bob, yeah....."
 

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Discussion Starter · #9 ·
lasstss said:
Magnusson has a Zo6 blower kit that is intercooled. Just a matter of time before they tweek it for the V. Instant 500+ horsepower.! No engine mods required.
I'm sorry, but at the compression ratio the LS6 runs, I would not bet $.50 on the long-term longevity of a blown stock LS6 in consistent hard use.
 

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Discussion Starter · #10 ·
Dubya said:
or put wider stickier tires and you'll be allright.......are you saying a 285 tire has NO advantage over a 245 if there the same exact tire, same diameter, etc etc?? "ummmm, yeah...im going to go ahead and have to disagree with you there bob, yeah....."
All else being equal (e.g. vehicle weight, air pressure) the contact patch of a narrow tire is the same total area as the contact patch with a wider tire - it's wider, but it's also shorter.

This wider contact patch CAN provide more grip, but it depends a lot on suspension setup.
 

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JEM said:
I'm sorry, but at the compression ratio the LS6 runs, I would not bet $.50 on the long-term longevity of a blown stock LS6 in consistent hard use.
A crank piston or rod change will help that. They put all new forged ones in so I'm sure it wouldn't cost anymore to have the compression lowered.
 

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Discussion Starter · #12 ·
GNSCOTT said:
A crank piston or rod change will help that. They put all new forged ones in so I'm sure it wouldn't cost anymore to have the compression lowered.
I'd been referring to lasstss's comment about bolting a Magnuson blower on a stock LS6. Might work for very short blasts, but I wouldn't take a car like that open-tracking.
 

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Current: None Past: '94 STS, '93 Eldorado, '98 ETC, '03 CTS
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JEM said:
This wider contact patch CAN provide more grip, but it depends a lot on suspension setup.
A good example of this is how the V is able to pull better skidpad numbers than both of BMW's M cars even though they use wider rubber. It owes this to it's superior suspension.

A wider tire will help apply more traction on take off though, as the patch will lie perpendicular to the force applied by the wheels (if that doesn't make sense, I can sketch it up for you).
 

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To each is own, you can do it. I was runing mid 12's with my ss impala which was turbocharged and ran between 5-8 lbs of boost. Did this for three years. Also ran at summit point a few times. Never had an issue and the motor was quiet as a mouse. Completely stock, no perf heads no cam no nitrous.

As far as tires, forget it. While running a set of 8" skins (replaced my 285's) these were spares, I had to baby the throttle. The 8" tires had no traction at all. If this were the case no one would use wide tires. Due to the normal weight transfer, the bigger the tire(to a point) the bigger the contact area, the better the grip. When you break traction you loose the weight transfer and reduce contact. A sticky tire adds to this advantage.
 

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Discussion Starter · #15 ·
gothicaleigh said:
A good example of this is how the V is able to pull better skidpad numbers than both of BMW's M cars even though they use wider rubber. It owes this to it's superior suspension.
The M5, to be sure, is a confirmed understeerer on something like a skidpad - it's got very heavily rear-biased tire sizing and Macstrut front suspension
 

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This is really good info!!! I guess the guys running fuel cars and pro stock are after appearance. They ought to put bicycle tires on rear that are made from a sticky rubber (soft) compound similar to the 18" wide tires they are currently using. It should reduce unsprung weight a bunch and give them another 1/10 or maybe more in the 1/4 mile. Contact John Force, Larry Dixon, or Warren Johnson and let them in on your knowledge of physics and coffecient of friction idea and see what they have to say.


Jim
Mbai2 said:
The width of the tire has nothing to do with frictional force (grip). The only thing that determines how much grip you have is the coefficient of static friction between the tire and the road and the weight of the car . Wider wheels, other than better looks, only help distribute heat from the tire rubbing against the road. If you put stickier tires on the V, it will have just as much grip as compared to wider tires with the same coefficient of friction.
 

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Discussion Starter · #19 ·
jokergrin said:
LOL nice. my thoughts exactly.

thanks for posting the information on mod's guys and if you have any more links please post. and what was that mallett site saying about a CTS-V coupe? :hmm:
Remember when dealing with the aftermarket that more often than not you are the long-term test car.

Mallett's website has a lot of wonderful stuff listed, and the engine internals have doubtless been around the 'Vette world for a while, but I'm pretty confident that little if any of it's yet been in a CTS-V.
 

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I am a Cadillac dealer in NJ and we have a couple of CTS-V's in stock. One we are in the process of changing the heads, cam, exhaust, clutch, etc. We are looking for at least a 100 whp and are looking for 150 whp if we go with a .600 lift cam. Depends on how radical we want the idle to be.

Craig
 
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