Yea I think I ran you 2-3 times . I know I'd prob pull a 12.9 or better if the track wasen't crap.

 

I can only reference my old A4 Z28 for personal experience so I'll tell you what it would take it to beat my Cobra. I ran a 13.0 @ 107mph on street tires with only a lid, catback, and free mods. A converter and tires would've put me at a 12.4 or so. That would be enough to beat my Cobra with it's current mods.

 

Usually around a 12.5 with a filter, exhaust, & tuning.

Nope. It takes a pulley swap, a chip, catback, and a filter to make around 450rwhp +/- 10rwhp.

The Cobra TB isn't very restrictive actually. You'll see very little to no gain on a dyno, same with a CAI setup.

Very true.

Nope. Not going to happen. 500rwhp is the elusive mark. The stock fuel system runs out at 500hp too.

The motor can handle 20+ psi, but the stock eaton blower can't handle near that amount. It loses efficiency past 13-14psi.

 

All I've got to say is that I'd drive one if they weren't so damn heavy. They're definitely fast cars. I respect them a lot (and I really wanna run one soon). Cool cars, glad Ford finally made a quick 4.6

 

Definitely heavy. I need to get mine to the scales. I'm curious to see what it weighs. It doesn't help that I'm 250lbs.

 

I am through picking on Mustangs (although I do like doing so). I have realized that it is now the American sports car vs ugly ******' imports trying to overthrow us as the dominant cars. I will honestly say that Ford and GM make the best sports cars dollar for dollar. If an 03 Cobra and an STI both wanted a piece of me and I could only show one who's boss, it would be the ******* STI. In this situation the Cobra would be my ally in this war on rice.

To beat an 03 Cobra you will need:
headers
catback
lid
filter
free mods
an efficient ram air system
ASP pulley
ported throttle body
and some slick shifting

These mods should overcome the Cobra's blower, but barely. It will come down to the driver.

 

DragonZ28, thank you, I feel the same way. We American car owners need to stick together. I think that racing F-bodies and vettes should be for fun, racing stangs for old time sake, and imports cause it's fun as hell, and for the grudge. I hate imports, I respect Stangs, and obviously love the Vette and the F-body. Would I ever own a Mustang again, no, will I ever own a car made in Japan, yes, the day GM is bought by Honda, hahahahaha hahahahahaha hahahahahaha hahaahahahaha hahahahahahaha hahahahahahaha! I do not like the mustang in any way shape or form, other then the fact it is American, but I do respect them.

 

dragonz28

 

Since I'm a newbie in here, I'll tread gently. As far as the "bolt ons aren't going to cut it" comment, I gotta disagree. I can't speak for what everybody else runs with "bolt-ons" on their LS1's. All I know is I am not afraid of a stock or mildly tweaked '03. Now when it comes to the pullies etc, that's going to be a different story--in some cases.

Some '03's run crazy ET's while many others with high dyno #'s run mid 12's. There are plenty of them over at SVT forum. So, in reality, running against an '03 that runs mid to high 12's is something I'm not concerned about. I consider it a good match up.

 

It is a great match-up. I just wish Ford would come out with a more powerful motor. They need a 351. I can not tell you guys how much I dislike a factory power adder. To me, it's like the damn imports all getting turbos to keep up with the LS1.

Back to what I was saying earlier, Mustangs are not the enemy to us LS1 owners. It is the entire import scene. A fast Trans-Am, Z28, Cobra, and Vette are all American muscle. If you drive an American sports car, I urge you to respect the others, regardless if it's Ford or GM, as your allies on this war on ricers. I have friends who drive ricers and that's cool. I like them, just not their cars. People who drive Civics and Integras are all right. People who drive Civics and Integras and think they run 10's after an intake, fart cannon, stickers and an ironing board wing are not cool. They think they can beat anything on the road. They lie and tell their friends that they beat a Corvette a few days ago to make them look fast. I know everyone on here sees this going on. I think we are too busy competing with each other, and not looking at an uprising threat to American sports cars. A 300HP STI is pretty damn fast, and I don't like that. A fast 4-banger? What happened to American sports cars as icons? I'll tell you. The fast and the furious came out and inspired little 16 year olds that imports are fast. Even faster than a 900HP Dodge Charger, and a Ferrari. Come on guys. Join me in the war on rice.

I added this link just for fun. You'll laugh your asses off.

http://www.ricehatersclub.com/killstory.html

 

I have to chime in and disagree Local car made 580/622 stock fuel system with tuning, pulley, exhaust, and some juice.

 

there is no point in aruging over ls1 vs. 03 cobra its all about $$$ and how much u will dish out. you could have 35k go buy and new cobra and do 2k worth to it and destroy everything about or go buy a used ls1 like a 98-99 for about 14-15k and put the other 20k into the car and you would destroy just about all cars. but no matter what there always someone alot faster than you who pry has more $$

 

Nitrous is a completely different story. I thought we were talking bolt-ons here. Still, I bet that guy had a boost-a-pump on to support that much power. 500rwhp is pretty much the limit for the stock fuel system.

 

So true. I'd be a big Ford fan if the Stang had a 347, 351, or even still the 302. A 281 just doesn't cut it when your comparing Ford to GM's LS1.

 

Unit I feel your pain. I figure if I stop eating for a while I will be seeing 12.9 in the 1/4 and I will have more money for mods. It's a win win situation right?

 

What about me.....

 

Well I don't know. I have never seen you post. If the modern GT had a larger engine, then I would have one right no, but no, I stuck with the damn SS . Joking.

 

We've been stomping these guys for years! Now that they start to beat us even a little bit we're all on the same team?! Just kidding! I agree that the stang is a nice car. I've beaten one that made 490rwhp at the track. But it came down to driver since my car has a H/C setup. I always give the stang owners who run me the thumbs up. I'm all for the war against rice! Who knows, if the F-body doesn't come back we all may end up driving stangs!

 

A pulley swap is a minor bolt-on for a Cobra though. With MINOR mods a cobra is at 460rwhp and around 11.8 @ 119mph.

 

http://www.blueovalnews.com/2003/pow...ead.072903.htm

2003 Mustang Cobras Have Defective Engine Cylinder Heads
29 July 03
Robert Lane

According to a Ford Motor Company memo, 2003 Ford Mustang Cobras may have defective engine cylinder heads. The memo noted that the Cobras may exhibit an unusual engine noise that is present at all temperature ranges during engine idle. The memo also states that the noise may be due to bad cylinder head valve guides in the left hand cylinder head. The noise may be heard at the rear of the left hand cylinder head, thought the left side exhaust or at the left front wheel of the vehicle.

If your 2003 Cobra Mustang exhibits this condition, Ford may replace the cylinder head and cam assembly. The replacement cylinder head part number is: 3R2Z-6049-GA. Owners are advised to have their vehicles inspected before the warranty period expires.

This is considered a "silent recall" where upon Ford may NOT notify owners of this condition. For more information, it is suggested that owners contact Pat Hoye (313) 248-8336 at Ford World Headquarters.

Updates at BlueOvalNews.com


Makes me want to go sell the Vette and get one