Ok, so here is my story,
from all my friends i have the fastest car, them havin mustangs gt's with bolt ons, bmw m3, evo X, and some other cars, and i would like to keep this, but one of my friends is going to buy a mustag cobra 03 tomorrow.
The mustang is bone stock, the only thing my vert has is magnaflow h-pipe with z06 cat back, modified airbox with a k&n filter.
My friend keeps telling me that the mustang would take my vert.

Bone stock X bone stock, could my car takes his??
I read that they suppost to run same numbers, but isnt the stang harder to drive? (givin me an advantage)

Thanks

 

First off, what year is your car?

Cobras make 390BHP (maybe 330-350 to the ground), but they're heavy (3700Lbs). They run low 13s here in Los Angeles without mods. But it only costs $500 to make an 03-04 Cobra make 450-460HP to the ground. If you car has what you say, you're probably making 310-330 to the ground (Not much more without tuning).

If you've got a manual, you both are running t56's but I have no idea what the Cobra's trans gearing is. They run 3.55s in the diff and you're running either 2.73 or 3.42 (depending on if you have an auto or 6-speed).

Power to weight ratio:
3200 / 330 = ~ 9.69:1 (Corvette)
3700 / 350 = ~ 10.5:1 (Cobra)

Here you can clearly see the Cobra isn't making as much power for the weight as the Corvette is. Nearly 1Lbs MORE per HP. So, it could be a driver's race up until 90MPH where the Corvette will win based on power and aerodynamics.

Of course, for both cars I'm assuming 15% power loss through the drive train. If your Corvette is an auto, you'll lose more power to the ground. About 18-20% total. However, if you are racing from a dig, you can torque up with an auto and get a better launch.

If he's a bone stock SVT, you're probably pretty safe. Those SVTs are boats. Before those cars are actually fast, they need to go on a diet.

If you want to stay ahead of the pack, I recommend you get some long tube headers, a vararam intake and a good dyno tune.

 

Oh alrite i see...
My car is stick... and i know how easy is to get horsepower out of those mustangs.. but the one that my friend is getting is bone stock (thats one of the reasons he is buying)

I have some mods in mind.
Vararam
fast 90/90
Long tubes
Tune

And later
Aft heads and cams


Thanks for the answear

 

Race him on a track, you know, with turns.

 

Those are PERFECT mods. Still don't know what year your Vette is, but you should be making about 360-370 to the ground with those mods. (Although, you won't see that on a dyno because the Vararam doesn't show results on the dyno. It shows results at 50+MPH)

Hehe... The way the cars sit, straight or turns, it shouldn't matter. The Vette should take 'em both ways.

 

hahaha... with turns he wouldnt have a chance.
My car is 2000

I mean.. i dont really mind not having the fastest car, because in the end of the day the vette looks way better than any other car... but is good to know that your car can take the car of the guy driving next to you lol

 

LOL! Yeah. I know what you mean.

When I first bought my LS1 Trans Am, I was so excited that my car was faster than all of my friends' cars. But then I joined a car club and learned quickly what modding is about. LOL

 

You'll beat him off the line and the rest will be the driver and how well you shift!
Don't sweat it I had an '06 GT modified with gears, Headers, exhaust, Flashed custom tune, short throw Hurst shifter,CIA... and I know that it could stay and or beat an '03 cuz I did it 2 out of 3 times! That said... my '02 vert is still faster!

 

Do some research and you'll see the HP numbers on the 03/04 cobra were underrated.They dyno closer to 415-420 and they're easy and cheap to modify. As long as he's stock it should be close, but i wouldn't count on an easy win.The weight is going to be his biggest disadvantage.

 

I have friends that had 03-04 SVTs. They didn't dyno in the 400s stock at all. Most of them dyno'd around 330-340. But with a pulley and tune they dyno'd into the 400s.

 

The Mustang Cobra is a nice car and really fast, but even with 500hp, it is still a pony car...the Corvette will always look and handle more like a true exotic sports car. So even if it is half a second or so slower compared to a modded Stang, most people won't even notice the Cobra...whereas when I drive around town with my Vette, everybody seems to notice the Vette. So there is more to having a nice car than just raw power. Indy

 

I have done some research on the Cobra's aka "Terminator" and I got to tell unless you have a 02-04 ZO6 stock for stock you will not beat him. Even though they have 390 from the factory a lot of them were under rated and were dynoing any where from 330 to 390. They are 12.7 quarter mile stock. Don't sleep on the Terminator! For the non believers just go to SVTperformance.com (if I am not allowed to put other forums in I apologize in advance ). They also, come from the factory w/ forged internals and are very mod friendly.

 

^^^ Over at LACR (before they closed it) we were seeing them run mid to low 13s. Very rarely did we see a stock one run 12.9 or better. (All fixed times) There were some freaks from the factory, but most of the guys would tune their cars up and say it's factory/stock.

I've seen C5 coupes and verts run 13.3s in the quarter totally stock as well. It's really a drivers race.

By the way, I go by experience, not by what Mustang/SVT owners say on forums. Nor what Vette owners say. We both know that partial people embellish the truth or flat out BS all the time. I have a friend with a stock auto 99 Mustang GT with 4.10s and he swears he's faster than a stock C5. We all know he's not. This is common BS talk.

Now coming from watching race after race of SVTs vs. Corvettes, I can tell you that stock for stock, the C5 will win past 100MPH. It's a driver's race until then.

 

The last time I saw an 03-04 Cobra at the track, it ran a 12.9. I didn't see whether your car is a M6 or an A4. Anyhow, the mustang will be quicker stock to stock. With headers, true cold air intake and tuning and good driving you can be close to mid 12s and beat most Cobras you will see at the track. This is of course in my experience. Look at the performance section to see what it takes to get 1/4 mile times in the C5. Personally, I get tired of hearing about the 7 gazillion hp mustangs and twin turbo Supras (pimple face teenager wet dreams). At some point in the mod process, driving skill and traction become the limiting factors.

 

Yours will win...tell him that ford found out the problem with their mustang's and put a circle around it! What true sports car seats four...lol...

Driver skills, unless you guys are on the track, quarter or eighth; will ultimately determine the winner. Do lets us know...

Ohh...you could always add NOS...just sayin'