[ffrcobra_65]

Oh the excuses

[Fenderaddict2]

Looks like we'll have to give "track star" to the ZL1 although I'd still put money on my car for any sustained running against either the ZL1 or the Shelby.

"On a road course, the monster V-8 (in the GT500) will suck the tank dry in just over twenty minutes. If that seems fast, then ponder this: at top speed, the upgraded injectors will spray enough fuel into the cylinders to empty the tank in just thirteen minutes."

[Fenderaddict2]

I originally ventured over here to find out more about the ZL1 as I considered my next car purchase. It initially seemed impressive, but the cost, narrow gains over the Boss and it's blown vulnerability made me hesitant. Then the Shelby comes out punching. Fastest car, no doubt with its 200 MPH bragging rights. But even though it suffers no gas guzzling tax its thirst for fuel is a bit off-putting. And in spite of its improved cooling I'm not so sure its blower wouldn't hinder the car just like the ZL1. At the end of the day both these cars are about, and deliver on bragging rights. I'll be looking for a '13 Boss to compliment my '12 after all. Performance, fun, value and a driving experience that's simply exciting all the time. Kind folks here told me to be happy with my ride. And I am. Boss 302 takes the podium IMHO, the blown oval and bow tie boys can fight among themselves. In off to the track in the big boys toy.

[Rock36]

Originally Posted by Fenderaddict2

Automobile Magazine wades in... ( yes, wades)

http://m.automobilemag.com/reviews/d...est/index.html

That was actually the best description of the over rev feature I've read so far.

"The high revs and enormous power output come with a corresponding buildup of heat, and for that reason the GT500's engine can be revved past 6250 rpm for only eight seconds at a time. Each second spent over 6250 rpm must be redeemed with a second under 6000. If the full eight seconds are used up, the engine computer will lock out the overrev function until the engine has been under six grand for fifteen seconds and has ventured once under 5000 rpm."

[JimmyDeanSausage]

Why on earth would you buy a 12 AND a 13 Boss?

[JMAN311]

So the thing that I'm curious about especially after reading the automobile mag article is this:

Are there really going to be any bolt-on type mods that will actually give much HP gains over stock? I mean it's already running 14 psi of boost. That's usually where everyone gets the big gains over the lower stock pressures (8-9psi) is to up the boost. Think this would even be able to handle any more boost than they have already given it stock? (I'll brace myself for all the forged internals comments)

The modded ZL1's seem to be getting better performance numbers once they are up'd to the same power levels as the stock GT500. Everyone always talks about well then the GT500 will just be modded and be faster. I'm just not that sure that the typical bolt-ons would have any effect on this car Maybe I'm just being naive.....

[8cd03gro]

Originally Posted by JMAN311

So the thing that I'm curious about especially after reading the automobile mag article is this:

Are there really going to be any bolt-on type mods that will actually give much HP gains over stock? I mean it's already running 14 psi of boost. That's usually where everyone gets the big gains over the lower stock pressures (8-9psi) is to up the boost. Think this would even be able to handle any more boost than they have already given it stock? (I'll brace myself for all the forged internals comments)

The modded ZL1's seem to be getting better performance numbers once they are up'd to the same power levels as the stock GT500. Everyone always talks about well then the GT500 will just be modded and be faster. I'm just not that sure that the typical bolt-ons would have any effect on this car Maybe I'm just being naive.....

There are plenty of 5.4s running more boost than 14psi without problems. Water/meth will probably be great with a tune. There shouldn't be any trouble making more power, but I think the gt500 would be better served with a set of tires than power mods. With the trap speeds that seem to be possible, 10 sec passes are not at all out of the question with just a set of tires. These cars with just a beefy set of treads are going to be downright nasty at the track

[a_Username]

Originally Posted by 8cd03gro

There are plenty of 5.4s running more boost than 14psi without problems. There shouldn't be any trouble making more power, but I think the gt500 would be better served with a set of tires than power mods. With the trap speeds that seem to be possible, 10 sec passes are not at all out of the question with just a set of tires. These cars with just a beefy set of treads are going to be downright nasty at the track

Any ZL1 or GT500's first mod should be at least a set of DRs.

[newb]

Originally Posted by JMAN311

So the thing that I'm curious about especially after reading the automobile mag article is this:

Are there really going to be any bolt-on type mods that will actually give much HP gains over stock? I mean it's already running 14 psi of boost. That's usually where everyone gets the big gains over the lower stock pressures (8-9psi) is to up the boost. Think this would even be able to handle any more boost than they have already given it stock? (I'll brace myself for all the forged internals comments)

The modded ZL1's seem to be getting better performance numbers once they are up'd to the same power levels as the stock GT500. Everyone always talks about well then the GT500 will just be modded and be faster. I'm just not that sure that the typical bolt-ons would have any effect on this car Maybe I'm just being naive.....

I had the same thought. Seems built pretty close to the limit to me. I may be wrong but there doesn't seem like a lot of room for pump gas exploring. CAI and a mild tune might be all she wrote.

With that being said, an extra 15-30 Hp will be far more than anyone will EVER need.

[8cd03gro]

Oh god. I'm having, "the 5.0 is maxed from the factory" flashbacks.

[newb]

Originally Posted by 8cd03gro

Oh god. I'm having, "the 5.0 is maxed from the factory" flashbacks.

It's a legitimate question. The blower is already spinning faster and making 14 PSI. Just curious how many more PSI it has in the tank. Also, they upped compression and removed the grill to combat heat. Add a few more lbs of boost and I wonder if it can handle it.

By no means trying to take anything away from the car. Not bashing or complaining. Just wondering. Interested in seeing what tuners say after getting their hands on a few. I dont think bolting on headers and CAI and dropping in a cam is going to find 80 Hp like some other cars.

Does this car need it? Probably not. Just wondering. Most people here are modders. Stock is never enough!

[8cd03gro]

Originally Posted by newb

It's a legitimate question. The blower is already spinning faster and making 14 PSI. Just curious how many more PSI it has in the tank. Also, they upped compression and removed the grill to combat heat. Add a few more lbs of boost and I wonder if it can handle it.

By no means trying to take anything away from the car. Not bashing or complaining. Just wondering. Interested in seeing what tuners say after getting their hands on a few. I dont think bolting on headers and CAI and dropping in a cam is going to find 80 Hp like some other cars.

Does this car need it? Probably not. Just wondering. Most people here are modders. Stock is never enough!

The gt500 is using the 2.3l tvs supercharger now rather than the m112 the previous cars used. This supercharger is capable of pushing more air, more efficiently than the 1.9l version on the LSA. The ls9 comes equipped with the same 2.3l tvs blower and the zr1 has seen upwards of 750rwhp with bolt ons. Justin at vmp has put down more than 800rwhp with their iteration of the 2.3 tvs on the 5.4 gt500s. A tune alone is probably going to do wonders for these cars and wit bolt ons i'd bet money you'll see 700+rwhp.

[9sec5oh]

^ This x2!

[72MachOne99GT]

I've been up around the rev limited 3-4 times and it's screaming mad at that point. Also, while I do miss not shifting more than once before 100, it makes the car feel out of this world.